Roofing & chimney contractor · Licensed & insured · Free estimates Cliffside Park, NJ Mon – Sat: 9:00 AM – 8:00 PM njassetconstruction@gmail.com

Chimney Repair · Rahway, Union County

Chimney Repair in Rahway, NJ

Rahway's older houses and two-families carry brick chimneys built for coal and later oil, now mostly venting gas appliances through oversized clay flues.

  • Licensed & insured
  • Free written estimates
  • Mon – Sat: 9:00 AM – 8:00 PM
  • Based in Cliffside Park, NJ

Chimney Repair for Rahway chimneys

Rahway's older houses and two-families carry brick chimneys built for coal and later oil, now mostly venting gas appliances through oversized clay flues. Downtown, older commercial buildings have chimneys rising through flat roofs, some long abandoned and others still serving boilers. Both kinds weather from the top down.

We repair chimneys throughout Rahway: repointing, crowns, caps, flashing, stainless steel liners, rebuilds of deteriorated upper sections, waterproofing and cleaning. For chimneys through flat roofs, we tie the chimney flashing into the membrane so the two are watertight together.

In low-lying areas that have flooded, the chimney base in the basement can lose mortar after repeated saturation. We check it along with the rest of the stack.

Rahway housing

Rahway's older neighborhoods near downtown hold late-1800s and early-1900s Victorians, foursquares and two-families, many with rear additions on low-slope roofs. Further out are 1920s to 1950s colonials, capes and bungalows, and post-war capes and ranches on the edges. Downtown has two- and three-story brick commercial buildings with flat roofs behind parapets, and newer mid-rise apartment buildings; industrial and commercial buildings add large flat roofs.

Weather & exposure

Rahway is low and fairly flat, closer to the coast than the county's western towns, so nor'easters bring sustained wind-driven rain. The Rahway River has flooded low-lying sections after major storms, which affects basements and chimney bases more than roofs. Mature trees shade older streets, and freeze-thaw works on downtown parapets and the brick chimneys of older homes.

Brick chimney with newly repaired flashing
Asset crew at work. Photos are from our own jobs across North New Jersey.

Repair, repoint or rebuild in Rahway

An inspection covering the crown, cap, brick, joints, flashing and flues tells you what is needed. For most Rahway homes that is a crown, cap, repointing of the exposed courses and a liner for gas appliances. For commercial buildings, unused chimneys are worth deciding on: cap, repair or remove. You get photos and a written scope.

If a flood has reached the basement, have the chimney base and the appliance connections checked before the next heating season.

Rahway Specifics

Chimney problems we see in Rahway

Chimneys through flat roofs

Downtown chimneys emerge through membrane roofs where base flashing fails as sealant ages. We rebuild the base flashing and counterflashing so the chimney and the roof are watertight together.

Abandoned flues

Commercial and residential chimneys that no longer serve anything still take in rain and keep deteriorating. Capping them or, where appropriate, taking them down below the roofline and closing the opening stops the water.

Oversized gas flues

Gas furnaces and water heaters venting through old clay flues produce condensation that erodes tile and mortar. A stainless steel liner sized to the appliance restores draft and protects the masonry.

Saturated chimney bases

Where basements have flooded, the base of the chimney can lose mortar and furnace connectors may need a check. We inspect and repoint the base as part of the chimney assessment.

FAQ

Chimney Repair in Rahway: your questions

Can an unused chimney be removed?

Often the portion above the roof can be taken down and the opening closed and roofed over, which eliminates a leak point. Whether that is appropriate depends on what else the chimney serves and the building. We assess and explain the options.

Our chimney on a flat roof leaks at the base. What is the fix?

New base flashing integrated with the membrane and new counterflashing set into the masonry. Sealant over the old flashing only lasts a short time. If the brick above is also open, we repoint it at the same visit.

Does my gas water heater need a liner?

If it vents into an original clay flue, especially one sized for a furnace, it likely does. Condensation damages the flue from inside. An inspection confirms the size and condition and what liner is appropriate.

What should we check on a chimney after basement flooding?

The mortar at the chimney base and the furnace or water heater connector. Saturated mortar can soften and joints open over repeated events. We inspect and repoint the base where needed.

Nearby

Chimney Repair near Rahway

We serve every town in Union County. Nearby towns with their own chimney repair page are linked.

Special offers

Current deals & promotions

All offers and terms
  • 5% Off

    Senior Discount: 5% Off

    Homeowners 65 and over save 5% on roofing and chimney work. Just mention it when you call or send the form.

    Code SENIOR5 Ongoing
    Get a Free Estimate
    Terms

    Homeowner must be 65 or older. Discount up to $750 per project. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • $250 Off

    $250 Off a Chimney Rebuild or Stainless Liner

    Save $250 on a chimney rebuild from the roofline up or a new stainless steel liner installation. Both include a written inspection report with photos.

    Code CHIMNEY250 Ends Dec 31, 2026
    Request Chimney Service
    Terms

    Applies to chimney rebuilds and full liner installations. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • 10% Off

    Veterans, Active Military & First Responders: 10% Off

    Thank you for your service. Veterans, active-duty military, police, firefighters and EMS receive 10% off any roofing or chimney job, repair or replacement.

    Code SERVICE10 Ongoing
    Claim Your Discount
    Terms

    Valid ID or proof of service required. Discount up to $1,500 per project. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • $1,000 Off

    $1,000 Off Your First Roof Replacement

    New customers save $1,000 on a complete roof replacement, shingle or flat. Includes tear-off, new underlayment, flashing and a full clean-up, with the price in writing before we start.

    Code NEWROOF1000 Ends Dec 31, 2026
    Get a Replacement Estimate
    Terms

    New customers only. Applies to full roof replacements. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • $200 Off

    Storm Damage Special: $200 Off Repairs

    After a nor'easter or wind storm, we document the damage for your insurance claim and take $200 off the repair. Call as soon as you notice missing shingles or a leak.

    Code STORM200 Ends Apr 30, 2027
    Request Storm Damage Repair
    Terms

    Applies to storm-related roof repairs of $1,000 or more. One offer per household. Cannot be combined with other offers. Must be mentioned before the estimate is signed. Valid for new contracts in our North New Jersey service area.

  • $100 Reward

    Refer a Neighbor, Get $100

    Know someone who needs a roof or chimney? When they sign a contract with Asset, you receive $100 and they get a free inspection report with photos.

    Code NEIGHBOR100 Ongoing
    Refer Someone
    Terms

    Reward paid after the referred project is completed and paid in full. Referrer must be named before the estimate. No limit on referrals.

Free Estimates · Licensed & Insured

Ready to schedule chimney repair in Rahway?

Tell us what you are seeing. We will come out, take a look, explain what we find, and give you a free written estimate. No pressure.

Request Chimney Service (201) 727-3113

Mon – Sat: 9:00 AM – 8:00 PM