Roof Repair NJ › NJ Locations › Union County

Elizabeth · Westfield · Summit · 21 towns

Roof Repair in Union County, NJ: From Elizabeth Two-Families to Summit Slate

Roof Repair SNJ repairs leaking, storm-damaged and aging roofs in all 21 Union County municipalities, from Elizabeth and Linden two-families to Westfield and Cranford colonials and Summit and Plainfield slate homes. Each visit starts with a free inspection and photos, followed by a written itemized quote and a 2-year written workmanship warranty on repairs.

Free roof inspection in Union County

Photos of every problem we find and an itemized written price before any work. Emergency requests handled 24/7.

Roof Repair SNJ
21 Union County towns · all 21 NJ counties

Free inspection

Roof, attic and gutters checked at no cost.

Insured

Liability and workers’ comp; certificate on request.

Written quotes

Itemized price in writing before any work.

Photo-documented

Every problem photographed, before and after.

Union County at a glance

Union County at a Glance: Old Homes Between the Bay and the Ridge

Union County has the second-oldest housing stock in New Jersey by median year built, 1956, and nearly four in five homes predate 1980. The county runs from the port and refineries on Newark Bay and the Arthur Kill to the Watchung ridge towns of Summit and Berkeley Heights, and the Rahway River runs through the middle, which shaped what happened here during Ida.

County seat

Elizabeth

Elizabeth has 137,298 of the county’s 575,345 residents (2020 Census). Its two- and three-family homes, brick apartment buildings and older Victorians in Elmora drive much of the county’s multi-family roof work.

Municipalities

21

From Elizabeth to the 1,423-resident Township of Winfield, each town runs its own construction office, and several, including Summit, Westfield and Plainfield, have historic preservation commissions.

Median year built

1956

ACS 2023 5-year data compiled by Stacker rank Union second-oldest in New Jersey; 24.1 percent of Union County homes were built in 1939 or earlier.

Homes built before 1980

79.5%

NJ Department of Health tracking data (ACS 2019-2023), the highest share of the three neighbouring counties of Essex, Hudson and Union. Many roofs sit on original plank decks.

Ida rainfall

8.44 in.

Measured at Newark Liberty Airport, which straddles the Newark-Elizabeth line, on September 1-2, 2021. The Rahway River overflowed in Cranford and Rahway, and Elizabeth’s Oakwood Plaza took about eight feet of water.

January 2016 blizzard

19.0 – 28.3 in.

State climatologist range for Union County from the January 23-24, 2016 storm. Heavy, long-lasting snow loads and ice dams followed on older capes and colonials.

Homes & roofs

What Kinds of Homes and Roofs Does Union County Have?

Union County’s roofs change from east to west: multi-family and flat roofs in Elizabeth, Linden and Rahway; 1920s to 1950s capes and colonials in Union, Roselle and Kenilworth; Colonial Revival and Tudor homes in Westfield, Cranford and Fanwood; and large slate and stucco houses in Summit and Plainfield. Postwar suburbs fill Clark, Scotch Plains, Springfield, New Providence and Berkeley Heights.

Elizabeth two- and three-families and apartments

Elizabethport, Peterstown, Frog Hollow and the North End are dense with frame two- and three-family homes, many with low-slope rear roofs and shingle or slate mansard fronts, plus brick apartment buildings with flat roofs and parapets. Leaks come from layered patches, worn scuppers and flashing at parapet walls. These buildings often fall outside the one- and two-family permit exemption.

Elmora and Westminster Victorians and colonials

Elizabeth’s Elmora and Westminster sections and parts of Roselle Park have larger early twentieth-century homes: foursquares, Colonial Revival and some Queen Anne Victorians with steep roofs, dormers, slate or old asphalt, and big brick chimneys. Valleys, dormer step flashing and chimney counter flashing are the usual leak points, and many still have original box gutters built into the eaves.

Union Township, Roselle and Kenilworth capes

Union Township’s Vauxhall, Connecticut Farms and Battle Hill areas, plus Roselle, Kenilworth and Hillside, filled in during the 1920s to 1950s with capes, colonials and bungalows on modest lots. Many have two shingle layers over board sheathing. Cape dormers, low-slope rear additions and small attics with poor ventilation lead to leaks and ice dams in winter.

Westfield, Cranford, Garwood and Fanwood

Westfield’s Kimball Avenue district, Stoneleigh Park and Wychwood, and Cranford’s streets along the Rahway River are full of 1900s to 1930s Colonial Revival, Dutch colonial, Tudor and Craftsman homes. Many have architectural shingles now, with slate on some larger houses, cedar accents and copper flashing. Cranford’s riverside streets also face flood issues that affect larger renovation projects.

Summit and the ridge towns

Summit sits high on the Second Watchung ridge with large stone, stucco and shingle-style homes, many with original slate, tile or cedar, especially in the Kent Place Boulevard, Hobart Avenue and Prospect Street districts. New Providence, Berkeley Heights and Mountainside have more postwar colonials and splits. Higher ground means more snow, ice dams and wind than the eastern towns.

Plainfield’s historic houses

Plainfield has large concentrations of Victorian, Shingle Style and Colonial Revival houses in districts such as Van Wyck Brooks and the Crescent Area. Steep slate and asphalt roofs, towers, turrets, built-in gutters and decorative metal are common, and many need careful copper and slate work. Exterior changes visible from the street need a Certificate of Appropriateness from the city’s Historic Preservation Commission.

Linden, Rahway and Clark postwar suburbs

Linden and Rahway mix older two-families near their downtowns with postwar capes, ranches and colonials, while Clark, Scotch Plains and Springfield are mostly 1950s to 1970s split-levels, ranches and colonials. Many roofs here are on their second or third replacement. Common problems include wind-lifted shingles, low-slope sections over additions, skylight leaks and worn pipe boots.

Union County weather

How Does Union County Weather Damage Roofs?

Union County’s roofs face flash flooding and extreme rain, wind and falling trees, heavy snow and freeze-thaw, with more snow on the ridge in Summit and Berkeley Heights and more wind and industrial exposure near the bay. Ida in 2021 is the storm most Union County homeowners remember, but it is not the only one.

Ida, September 1, 2021: river flooding

Ida’s remnants pushed the Rahway River over its banks in Cranford, where more than 200 people were rescued, and into parts of Rahway not flooded before. In Elizabeth, the Oakwood Plaza apartments filled with about eight feet of water and four residents died. Scotch Plains evacuated more than 100 people. River flooding is not a roof problem, but it often arrives with roof leaks.

Ida on the roofs: rain and collapse

Newark Liberty Airport, on the Newark-Elizabeth line, recorded 8.44 inches during Ida. In Roselle Park, the roof of a supermarket on Raritan Road collapsed and engineers deemed the building unsafe. Heavy rain overwhelmed gutters, leaders and flat-roof drains across the county, and water that cannot leave a roof finds every weak seam and flashing joint.

Sandy, October 29, 2012: wind and outages

Sandy brought a 78 mph gust at nearby Newark and long power outages across Union County. Elizabeth hosted a federal training ship as lodging for power crews, and the Bayway refinery in Linden had a fuel spill. For roofs, Sandy meant lifted shingles, torn ridge caps and tree damage in the older, shaded towns of Westfield, Cranford, Summit and Union.

Isaias, August 4, 2020: tree-fall

Tropical Storm Isaias brought New Jersey its strongest winds since Sandy, and more than a million customers statewide lost power, some for up to five days. In Union County’s tree-lined towns, limbs fell on roofs, punctured decks and pulled gutters off fascia. Many homeowners learned that branches over the roof are a liability in a fast-moving tropical storm.

January 2016 and March 2018: heavy snow

The January 23-24, 2016 blizzard dropped 19.0 to 28.3 inches across Union County. Two years later, the March 6-7, 2018 nor’easter’s wet snow caused tree damage described statewide as the worst since Sandy, with about 337,000 customers losing power. Heavy snow strains old rafters, and slow melts feed ice dams on capes in Union, Roselle and Kenilworth.

Freeze-thaw, ridge snow and bayfront air

Winter temperatures in Union County cross freezing many times, working water into cracked slate, open chimney mortar and nail holes. Summit, New Providence, Berkeley Heights and Mountainside sit on the Watchung ridges and see more snow and wind. Near the Turnpike, rail lines and industrial areas in Linden, Elizabeth and Rahway, grime settles on roofs and in gutters and clogs drains faster.

Roofing services

Which Roofing Services Do Union County Homes Need Most?

Union County homes most often need leak repair on aging shingle roofs, storm and tree damage repair, flat-roof work on Elizabeth, Linden and Rahway multi-family buildings, and slate repair in Summit, Westfield and Plainfield. Here is how each of our services applies in this county.

Roof Leak Repair in Union County

With a median build year of 1956, many Union County roofs leak at aging flashing, dormers and chimneys rather than open shingle field. We trace stains in Union Township capes, Westfield colonials and Elizabeth two-families back to their source and fix the cause, with photos.

Emergency Roof Repair in Union County

When a tree comes through a Cranford roof or a storm opens a Linden flat roof, send an emergency request through the contact page at any hour. We tarp or seal the opening, document the damage for your insurer and plan the permanent repair.

Storm Damage Roof Repair in Union County

Ida, Sandy, Isaias and the 2018 nor’easters each left Union County roofs with lifted shingles, broken limbs and flashing torn loose. We document storm damage plane by plane and separate it from older wear so your adjuster sees what the storm actually did.

Roof Replacement in Union County

Many capes and colonials in Union, Roselle, Kenilworth, Clark and Springfield already have two shingle layers. When the deck is soft or a third layer would be needed, we tear off to the boards, replace rotted sheathing and install ice and water shield and new ventilation.

Roof Inspection in Union County

Buying in Westfield, Summit or Cranford usually means inheriting an older roof. Our inspection covers shingle or slate condition, flashing, chimneys, gutters and attic ventilation, with a photo report that helps in negotiations and future planning.

Flat Roof Repair in Union County

Flat and low-slope roofs are common on Elizabeth, Linden and Rahway two- and three-families, porch roofs and rear additions across the county. We repair modified bitumen, EPDM and built-up roofs, clear scuppers and drains and re-flash parapets.

Metal Roof Repair in Union County

Union County’s older homes have copper bay roofs, standing-seam porches, built-in gutters and painted terne valleys, especially in Plainfield, Summit and Westfield. We solder and patch copper, recoat terne and repair standing seams before rust opens holes.

Slate Roof Repair in Union County

Slate survives on many Summit, Plainfield, Westfield and Elmora homes. We replace broken slates with matched stone using copper nails, bibs or hooks, rebuild copper valleys and flashing, and keep sound slate in place rather than recommending tear-off.

Shingle Roof Repair in Union County

Asphalt shingles cover most Union County homes, from Scotch Plains splits to Linden capes. We replace wind-lifted or missing shingles, match color and profile as closely as available stock allows, replace pipe boots and re-flash dormers and walls.

Roof Cleaning in Union County

Shaded streets in Summit, Westfield, Cranford and Mountainside grow moss and algae on north slopes, while roofs near industrial corridors collect grime. We clean with low-pressure, roof-safe methods and point out any damage that buildup was hiding.

Gutter Repair in Union County

Union County’s mature trees fill gutters every fall, and Ida showed how fast undersized gutters and leaders overflow. We repair, re-pitch and reline gutters, rebuild built-in box gutters on older homes and size leaders for heavy rain.

Commercial Roofing in Union County

Main streets in Westfield, Cranford, Summit and Rahway, plus warehouses and plants near Linden, Elizabeth and Kenilworth, rely on low-slope commercial roofs. We repair and replace these roofs and coordinate access with owners, managers and tenants.

Union County rules

Do You Need a Permit for Roof Repair in Union County?

Permits & local review

For a detached one- or two-family house in Union County, roof covering repair or replacement is ordinary maintenance under N.J.A.C. 5:23-2.7, so no construction permit is needed. That covers most homes in Westfield, Cranford, Union, Clark and Scotch Plains. A permit from the local construction office is required for sheathing or rafter replacement, for attached townhomes and buildings with three or more units, which are common in Elizabeth, Linden and Rahway, for commercial roofs and for a third shingle layer.

Historic review adds another layer in several towns. Plainfield requires a Certificate of Appropriateness for exterior changes visible from a public right-of-way in its historic districts and on landmarks; the city has ten residential historic districts, including Van Wyck Brooks and the Crescent Area. Summit lists 12 historic districts, among them Kent Place Boulevard, Hobart Avenue and Prospect Street, plus 44 individual landmarks. Westfield’s Kimball Avenue district and 23 locally designated properties fall under its Historic Preservation Commission. In flood-prone parts of Cranford, Rahway and Elizabeth, large repairs after a flood may trigger floodplain rules. Check with your town before changing a roof’s material or look.

Insurance claims

In Union County, the biggest insurance question after a storm is whether water came from the roof or from flooding. Homeowners policies usually cover sudden roof damage from wind, falling trees and the weight of ice and snow, and rain that enters through that damage. Flood damage from overflowing rivers or rising water, like the Rahway River flooding in Cranford during Ida, is excluded and needs flood insurance. Wear, age and neglect are usually excluded too, which matters with so many roofs here over 30 years old. When a neighbour’s tree falls on your house, your own policy typically handles your damage. Take dated photos of the roof, attic and ceilings right away, keep receipts for tarping and emergency work, and do not throw away damaged materials until the adjuster has seen them. For slate roofs in Summit and Plainfield, ask how matching is handled. Your policy and agent have the final word.

Pricing · updated November 2026

How Much Does Roof Repair Cost in Union County?

As of November 2026, Union County roof repairs typically run from about $350 for a few shingles to $2,500 or more for slate, flat-roof or rotted-deck work. Steep historic roofs in Summit and Plainfield, multi-family access in Elizabeth and soft decks under two layers in postwar homes tend to push costs toward the upper end.

Shingle repairs

$350 – $800

Replacing wind-lifted or missing shingles and resealing tabs on Clark, Springfield or Scotch Plains splits and colonials. Matching discontinued colors on older roofs may take extra sourcing.

Pipe boots and vent flashing

$250 – $600

New boots around plumbing vents and bath fans, a common leak on 1990s and 2000s re-roofs in Union Township, Linden and Kenilworth where boots have cracked before the shingles wore out.

Leak tracing and repair

$400 – $1,500

Finding and fixing one leak at a dormer, valley, wall or skylight on a Westfield colonial or Cranford Dutch colonial. Price depends on how far water travelled and what must be opened.

Chimney and skylight flashing

$400 – $1,800

Skylight re-flashing usually $400 to $1,200; chimney re-flashing $600 to $1,800. Large brick chimneys on Elmora and Summit homes need step and counter flashing cut into mortar.

Flat roof patch and seam

$400 – $2,500

Patching modified bitumen or EPDM, fixing scuppers and drains and re-flashing parapets on Elizabeth, Linden and Rahway multi-family buildings and rear additions countywide.

Slate, valley and deck repair

$500 – $2,500+

Matched slate replacement, valley work ($500 to $1,500) or rotted deck sections ($500 to $2,000 or more). Summit and Plainfield slate roofs often need staging and salvage stone.

  • Housing age. With a 1956 median build year, many roofs hide soft plank decking, so deck repair is a common add-on.
  • Layers. Many capes in Union, Roselle and Kenilworth already have two layers; adding a third is not allowed, so replacement means a full tear-off.
  • Slate and steep roofs. Summit, Plainfield and Westfield’s older homes have steep slate or complex roofs that need extra safety setup and skilled labor.
  • Historic review. In Plainfield’s districts and some Summit and Westfield properties, changing materials or appearance can add review time and material costs.
  • Multi-family access. Elizabeth and Linden two- and three-families often have narrow driveways and street parking only, and larger jobs need permits.
  • Tree cover. Heavily wooded streets in Summit, Mountainside and Berkeley Heights mean debris cleanup and limb clearance.
  • Drainage upgrades. After Ida, many owners add larger gutters, leaders and scuppers when they repair a roof.

Planning ranges, not quotes, updated November 2026. Based on site-wide repair ranges, the Roof Observations New Jersey roof cost guide (January 2026) and Fixr’s 2026 figures, which put a typical New Jersey replacement at $8,500 to $17,000. Your written itemized quote follows a free inspection. See our roof repair cost guide for more.

Years on NJ roofs
0 +
Roofs repaired & replaced
0 +
NJ counties served
0
Emergency line
0 /7

Who does the work

Why Union County Homeowners Choose Roof Repair SNJ

Check any roofer before you sign in Union County

Ask for the 13VH registration number and confirm it on the NJ license lookup. NJ law requires a signed written contract showing the registration number and total price, and gives you until midnight of the third business day to cancel (N.J.S.A. 56:8-151).

21 towns

Roof Repair Notes for Union County Towns

We serve every Union County municipality, and roof problems differ from Elizabeth’s waterfront neighbourhoods to Summit’s hilltops. These notes cover the largest and most distinct towns; the full list of 21 towns appears below. Nearby homes are covered on our Middlesex County roof repair and Somerset County roof repair pages.

Elizabeth

Elizabeth mixes dense two- and three-family homes in Elizabethport, Peterstown and Frog Hollow with brick apartment buildings and larger early twentieth-century homes in Elmora and Westminster. Flat and low-slope rear roofs, parapets and layered patches lead to most leaks. Ida flooded Oakwood Plaza with about eight feet of water, and multi-family roofs here usually require permits.

Union

Union Township grew mostly between the 1920s and 1950s, with capes, colonials and bungalows in Vauxhall, Connecticut Farms and Battle Hill. Many roofs have two shingle layers over board sheathing, cape dormers that leak at the cheek walls and small attics prone to ice dams. Roof replacements here usually mean a full tear-off and new ventilation.

Plainfield

Plainfield has ten residential historic districts, including Van Wyck Brooks and the Crescent Area, with large Victorian, Shingle Style and Colonial Revival homes. Slate, built-in gutters, towers and decorative metal are common. Visible exterior changes need a Certificate of Appropriateness, so matched slate repair and in-kind materials are the practical route for many owners.

Linden

Linden combines older two-families and brick buildings near its downtown with postwar capes and ranches, and sits beside the Bayway refinery and industrial areas along the Arthur Kill. Grime from nearby industry and highways clogs gutters and drains. Flat roofs on multi-family and mixed-use buildings and shingle roofs on capes both need regular attention.

Westfield

Westfield has many 1900s to 1930s Colonial Revival, Tudor and Dutch colonial homes, with the Kimball Avenue local historic district and the state- and nationally listed Stoneleigh Park. Many roofs are architectural shingle over older decks, with some slate and copper. Big trees mean gutters, moss and limb damage are frequent issues.

Rahway

Rahway’s older homes near downtown and along the Rahway River mix two-families, Victorians and postwar houses. During Ida, the river flooded parts of the city not flooded before. Roof work here often comes alongside flood repairs, so documenting roof and flood damage separately matters for insurance and for any floodplain review.

Cranford and Garwood

Cranford’s tree-lined streets along the Rahway River are full of early twentieth-century colonials, Dutch colonials and Craftsman homes, and Garwood has compact capes and two-families. During Ida, more than 200 people were rescued in Cranford. Roofs here need good gutters and leaders, and big renovations in flood zones may face floodplain rules.

Summit

Summit sits on the Watchung ridge with large slate, tile and cedar roofs on older estates, especially in districts like Kent Place Boulevard and Hobart Avenue, and postwar colonials elsewhere. The city lists 12 historic districts and 44 landmarks. Higher ground brings more snow and ice, and heavy tree cover means limb damage and moss.

Scotch Plains and Fanwood

Scotch Plains is mostly postwar ranches, splits and colonials, with larger homes near the Watchung Reservation; Fanwood has older colonials and capes near the train station. During Ida, Scotch Plains evacuated more than 100 people. Common roof jobs are wind-lifted shingles, low-slope additions and skylight flashing on 1970s and 1980s remodels.

Roselle and Roselle Park

Roselle and Roselle Park have dense blocks of capes, colonials and two-families from the 1910s to 1950s. During Ida, the roof of a Roselle Park supermarket collapsed under the storm. Many houses have two shingle layers and limited attic ventilation, so ice dams and deck rot near the eaves are common reasons for repair.

Elizabeth · Union · Plainfield · Linden · Westfield · Rahway · Scotch Plains · Cranford · Summit · Roselle · Hillside · Springfield (Union County) · Clark · Roselle Park · New Providence · Berkeley Heights · Kenilworth · Fanwood · Mountainside · Garwood · Winfield

Seasonal roof care

When Should Union County Homeowners Maintain Their Roofs?

Plan roof checks in Union County each spring and late fall, clear gutters and drains before hurricane season, and look at the roof after any major storm or heavy snow. Here is what each season brings.

In depth

Union County Roofing Questions Most Roofers Skip

Repair when the problem is local, such as a dormer, a pipe boot or a chimney; replace when the shingles are worn across the roof, the deck is soft, or the roof already has two layers. Union County’s 1956 median build year means many homes in Union Township, Roselle, Kenilworth, Clark, Springfield and Linden are on their second or third roof.

Look at the whole roof. If shingles are curling, losing granules or cracking across several slopes, a repair buys only a short time. If there are already two layers, the state code does not allow a third, so the next re-roof is a full tear-off. Tear-off also lets us check the board sheathing, which on homes this age is often original and may have soft spots near eaves and around chimneys.

A replacement is a chance to fix the problems old capes have: install ice and water shield at the eaves, add drip edge, balance soffit and ridge ventilation, and correct low-slope sections that were shingled below minimum pitch. A detached one- or two-family home needs no permit for re-roofing, but replacing deck boards or rafters does. Fixr puts typical New Jersey replacement costs at $8,500 to $17,000. Our roof replacement page explains materials and timing.

Start by confirming whether your property is in a historic district or is a designated landmark, then plan in-kind repair where you can and apply early if you want to change materials or appearance.

Plainfield requires a Certificate of Appropriateness for exterior changes visible from a public right-of-way in its historic districts and on landmarks. The city has ten residential districts, including Van Wyck Brooks and the Crescent Area. Switching from slate to asphalt or changing a roofline on a visible slope is the kind of change that needs review.

Summit lists 12 historic districts, among them Kent Place Boulevard, Hobart Avenue, Prospect Street and the Downtown district, plus 44 landmarks. Westfield’s Historic Preservation Commission has jurisdiction over the Kimball Avenue district and 23 locally designated properties, while Stoneleigh Park is listed at the state and national levels.

In practice, matched slate repair, copper flashing and in-kind replacement keep a house’s appearance and are usually the simplest path. If replacement is needed, bring photos, product sheets and samples to the commission. We prepare roof photos and material information to support applications. Our slate roof repair in Union County page covers methods for these older roofs.

Treat roof damage and flood damage as two separate problems, because they are covered differently and may face different rules. During Ida, the Rahway River overflowed in Cranford and Rahway and flooded areas that had not flooded before. Many of the same homes also had roof leaks from the extreme rain.

Roof leaks caused by storm damage, such as lifted shingles or a fallen limb, are usually covered by homeowners insurance. Rising water from the river or streets is excluded and needs flood insurance. Keep photos of the roof and upper floors separate from photos of the basement and ground floor, and note dates.

If your home is in a mapped flood zone, very large repair or renovation projects can trigger floodplain management rules. As general practice under FEMA’s program, when repair costs reach a substantial share of the building’s value, the town’s floodplain manager may require the building to meet current flood rules. A roof repair alone rarely reaches that level, but it can be part of a bigger rebuild that does. Ask your construction office before major work. Meanwhile, make sure gutters and leaders can handle storms like Ida and discharge away from the foundation. Our storm damage roof repair service covers documentation for claims.

Multi-family buildings with three or more units need permits for roofing work, have flat roofs that depend on good drainage and involve tenants who need notice and protection. Elizabeth, Linden and Rahway have many two- and three-family homes and brick apartment buildings with flat or low-slope roofs.

The most common problems are layered patches that trap water, clogged or undersized scuppers and drains, and failed flashing at parapets. After Ida, many owners learned that a single scupper cannot handle extreme rain. A lasting repair cuts back to sound membrane, replaces soft deck, installs new modified bitumen or EPDM with proper laps and re-flashes the parapet.

For a detached two-family, ordinary maintenance rules apply and no permit is needed for re-covering. For three-families and larger buildings, a permit from Elizabeth’s or Linden’s construction office is required. Plan for access: narrow driveways and street parking are common, and materials may need to be carried through the building.

Tenants need notice before roof work and protection from debris and leaks. Interior damage in a tenant’s unit may be the owner’s responsibility, so keep records of every repair. We provide photo documentation that owners can share with tenants, insurers and lenders. Our flat roof repair page explains materials.

Keep branches trimmed back from the roof, have large trees near the house checked by an arborist, and clean gutters after the leaves fall. Union County’s older towns, especially Summit, Westfield, Cranford, Mountainside and Berkeley Heights, have mature street and yard trees. Sandy, Isaias and the March 2018 nor’easters all brought down limbs onto roofs.

Branches touching or rubbing a roof scrape off granules and lift shingles, and overhanging limbs drop leaves that clog gutters and hold moisture against the roof. In wind or heavy wet snow, dead or weak limbs fall. An arborist can identify hazardous trees and recommend pruning or removal; on public street trees, check with the town.

Shade also brings moss and algae, especially on north slopes. Moss holds water and lifts shingles; it should be cleaned with gentle, roof-safe methods. On slate roofs in Summit and Westfield, avoid pressure washing.

If a tree does fall on your roof, stay out of the affected rooms, photograph the damage and request emergency help. Your homeowners policy usually covers damage even if the tree was a neighbour’s. Gutters should be cleaned at least twice a year in heavily wooded areas. Our gutter repair service handles rehanging and re-pitching after storm damage.

Check the New Jersey registration, insist on a written contract and choose a roofer with experience on your type of roof. Every home improvement contractor must register with the Division of Consumer Affairs; the registration number starts with 13VH and can be verified on the state’s license verification site. Registration requires at least $500,000 in commercial general liability insurance, and you should ask for a certificate.

Under N.J.S.A. 56:8-151, the contract must be written and signed and list the contractor’s legal name, address, registration number, total price and insurance certificate copy, with a three-business-day right to cancel.

Match the roofer to the roof. A Plainfield Victorian with slate and built-in gutters needs different skills from a Clark split-level or a Linden three-family flat roof. Ask how they would repair your roof, what fasteners and flashing they use and whether they will keep sound materials. Ask whether they understand historic review in Plainfield, Summit or Westfield if that applies.

Be wary of storm chasers who appear after a big storm, demand large deposits or pressure you to sign an insurance assignment. Ask for photos of the problem and the finished repair, and keep them with your home records.

FAQ

Roof Repair in Union County, NJ: Frequently Asked Questions

As of November 2026, most Union County roof repairs run from about $350 for a few shingles to $1,500 for a single leak. Slate, flat-roof and rotted deck repairs can reach $2,500 or more. Steep historic roofs and multi-family access push costs higher. A free inspection gives an exact written quote.

Detached one- and two-family homes need no permit for roof covering repair or replacement under N.J.A.C. 5:23-2.7. Buildings with three or more units, attached townhomes, commercial roofs, deck or rafter replacement and third layers need a permit from the local construction office.

Yes. Plainfield requires a Certificate of Appropriateness for exterior changes visible from a public right-of-way in its historic districts and on landmarks. Changing roofing material or appearance usually needs review. In-kind repair keeps the appearance and is often the simplest route. Check with the city first.

Yes. Ida’s extreme rain overwhelmed gutters, leaders and flat-roof drains across Union County, and a supermarket roof in Roselle Park collapsed. River flooding hit Cranford, Rahway and Elizabeth. Roof leaks and flooding often happened together, but they are usually covered by different insurance policies.

Only if the roof has a single layer and the deck is sound. New Jersey allows no more than two layers, so a roof that already has two needs a full tear-off. Many Union Township capes already have two layers. Tear-off also allows inspection and repair of the original board sheathing.

If most slates are sound and the problems are nails, valleys or chimney flashing, repair is usually the better value and keeps the house’s character. Replacement makes sense only when slates are flaking or crumbling across most of the roof. Matched salvage slate and copper flashing keep the original look.

Usually yes. Standard homeowners policies typically cover sudden damage from falling trees, wind and the weight of snow, even if the tree was a neighbour’s. Wear and age are usually excluded. Photograph the damage, protect the roof with a tarp and notify your insurer quickly.

Repeat leaks usually come from layered patches that trap water, clogged or undersized scuppers and drains, and failed parapet flashing. Heavy rain like Ida exposes these weaknesses. A lasting repair cuts back to sound membrane, replaces soft deck and re-flashes the parapet and drain.

New Jersey home improvement contractors must register with the Division of Consumer Affairs, and the number starts with 13VH. Verify it at newjersey.mylicense.com, ask for a certificate of liability insurance and get a written, signed contract with a three-business-day cancellation right.

Ice dams form when attic heat melts roof snow and the water refreezes at cold eaves. Older capes in Union, Roselle and Kenilworth often have little insulation and poor ventilation. The fix is air sealing, insulation, balanced soffit and ridge ventilation and ice and water shield at the eaves when re-roofing.

Reviewed by the Roof Repair SNJ team · Last updated November 2026

Free inspection

Get a Free Roof Inspection in Union County

Whether it is a leaking dormer in Union, slipped slate in Summit, a ponding flat roof in Elizabeth or storm damage in Cranford, start with a free inspection and photos. Book an inspection in Union County or send us your roof photos for a first look. You get a written itemized quote before any work, and repairs carry a 2-year written workmanship warranty.

No pressure and no obligation. If a repair will do, we’ll tell you.

Roof Repair SNJ