Fast, Reliable Chimney Cap & Crown Across New Brunswick
Chimney cap and crown repair in New Brunswick typically runs $280-$650 for most row houses and rental multi-families, with our Chimney Cap & Crown in New Brunswick team able to respond same-day or next-day throughout the 08901, 08903, and 08905 ZIP codes. We know the tight alley-load configurations around George Street and French Street, where roof access means navigating between parked cars and carrying materials through narrow passages. That’s why our technicians arrive with rolling-code remote equipment and pre-measured custom caps, so we’re not making multiple trips or asking you to move vehicles. Call (855) 950-3861 and a live person will pick up, 24 hours a day.
Why Hearthstone Chimney Co. of New York City Is New Brunswick’s Preferred Chimney Cap & Crown Company
We’ve been working the chimneys of Middlesex County for over 42 years, and New Brunswick’s particular mix of century-old brick row houses and converted student rentals is familiar territory. Our technicians know the difference between a French Street three-family built in 1910 and a post-war duplex off Easton Avenue, and they know which crowns are likely to show mortar washout from the Raritan valley’s persistent humidity.
Our customers in New Brunswick leave reviews that mention the same things: we show up when we say, we explain what we found in plain English, and we leave photos they can see. The 90-Day Done Right Promise is in writing, no arguing. If the crown coating fails or the cap seal loosens, we come back and make it right.
Response time to New Brunswick is typically same-day for calls received before noon, next-morning for afternoon calls. We stock caps and crown coating materials for common New Brunswick flue configurations, so most jobs finish in a single visit. No-hassle upfront pricing means the number on the estimate is the number on the invoice.
We understand the landlord-tenant dynamics in the Rutgers corridor. When a cracked crown is leaking into a shared flue serving multiple apartments, we document the condition with our Level-2 camera inspection, deliver a plain-English verdict with photos, and get the repair scheduled before the next rain cycle.
Our Chimney Cap & Crown Services in New Brunswick
Multi-Flue Cap Installation
New Brunswick’s row houses and converted multi-families frequently have two or three flues emerging from a single chimney stack, especially in the blocks near College Avenue and George Street. A standard single-flue cap won’t seal properly and often creates gaps where water, animals, and debris enter. We measure each flue on-site and fabricate custom multi-flue caps from Olympia Chimney and Copperfield, sized to the exact spacing of your stack. For landlords managing multiple units, we install rolling-code remote access systems so roof inspections don’t require coordinating keys from every tenant.

Crown Repair
The crown is the concrete or mortar wash that seals the top of your chimney between the flue tiles and the brick edge. In New Brunswick, crowns deteriorate faster than in drier Middlesex County towns because the Raritan River valley channels ground-level humidity into the masonry. We’ve repointed crowns on row houses throughout the French Street corridor where the mortar had washed out so severely that water was pooling inside the chase, accelerating spalling of the brick below. Our crown repair includes removing loose material, rebuilding with weather-resistant mortar, and sloping the surface to shed water toward the edges, not the flues.

Crown Coating
For crowns with minor cracking but sound structural integrity, we apply professional-grade crown coating from Gelco and HeatShield. These elastomeric formulations flex with Central New Jersey’s freeze-thaw cycle, which typically produces dozens of temperature crossings each winter. A coated crown in New Brunswick needs to withstand repeated expansion and contraction without cracking open. We apply two coats, feathered past the crack lines and down to the brick edges, creating a seamless waterproof membrane. Most crown coatings cure within 24 hours and carry our 90-Day Done Right Promise.

Cap Replacement
Metal caps in New Brunswick’s humid valley environment corrode faster than inland, especially at the seams and corners where water collects. We’ve replaced caps on Easton Avenue multi-families where the original galvanized steel had rusted through in under eight years, and on copper caps near the Raritan where galvanic corrosion at the joints created pinhole leaks. Our replacement caps use heavier-gauge materials from Famco and DuraFlex, with welded seams and stainless steel hardware that outlasts standard builder-grade products.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in New Brunswick
We work exclusively with professional-grade materials from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield. For New Brunswick customers, this means we stock common cap sizes and crown coating supplies at our Middlesex County warehouse, so we’re not ordering parts and making you wait. A cracked crown on a rental row house can’t wait two weeks for a special shipment. When we measure your flue spacing on the first visit, we often have the custom cap fabricated and installed before the next rain. The brands we use are the same ones specified by chimney professionals nationwide, not substitutes chosen to hit a price point.
Common Chimney Cap & Crown Problems We See in New Brunswick Homes
- Corroded crowns on multi-flue row house stacks in the French Street corridor. Deferred maintenance lets moisture seep into shared flues, and we’ve found upper-floor tenants complaining of backdrafting while the ground-floor unit shows no symptoms. The crown crack was invisible from the street.
- Missing or undersized caps on converted Easton Avenue multi-families. Raccoons and birds push through gaps in the chase and fill the flue with nesting debris. We often need to complete a full cleanout before we can properly measure and install a cap that seals.
- Metal caps rusted through in the Raritan valley’s humidity. Copper caps corrode at the seams faster here than in drier areas like Piscataway. We’ve replaced caps that looked fine from the ground but had pinholes allowing steady water intrusion.
- Cracked crowns leaking into shared flues serving multiple apartments. On a rental row house near College Avenue and George Street, we found a cracked crown leaking water into a shared flue that served both the ground-floor fireplace and a second-floor gas boiler. We sealed the crown with a Gelco crown coating, installed a custom multi-flue cap from Olympia Chimney to prevent nesting, and used a rolling-code remote opener so the landlord could access the roof without keys.
Pricing for Chimney Cap & Crown in New Brunswick, NY
| Service | Typical Range in New Brunswick |
|---|---|
| Single-flue cap installation | $280-$420 |
| Multi-flue custom cap | $450-$650 |
| Crown repair (partial rebuild) | $380-$580 |
| Crown coating (full surface) | $320-$480 |
| Cap replacement (remove and install) | $260-$400 |
These ranges reflect New Brunswick’s typical row house and multi-family configurations. Taller stacks requiring additional ladder work, severely deteriorated crowns needing full rebuild rather than coating, and custom multi-flue caps for non-standard flue spacing fall toward the higher end. We provide no-hassle upfront pricing before any work begins, and estimates are free. Call (855) 950-3861 to schedule.
We Also Serve Cities Near New Brunswick
Our Chimney Cap & Crown technicians regularly work in Piscataway, Highland Park, Milltown, and East Franklin. The same response standards apply: live person on the phone, background-checked uniformed technicians, and most jobs completed in a single visit.
Serving New Brunswick, NY - Our Local Coverage Area
We’re based in the New Brunswick area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Chimney Cap & Crown in New Brunswick
Because the converted multi-families in that corridor frequently have two or three flues in a single stack, each serving a separate apartment, and standard single-flue caps leave dangerous gaps between them. We measure on-site and fabricate custom multi-flue caps that seal the entire stack surface. Call (855) 950-3861 for a free estimate on your property.
Yes, for rental properties and townhomes with alley access, we install rolling-code remote openers so landlords and property managers can reach the roof without carrying keys for every unit. This is standard on our multi-flue cap installations in the George Street and French Street corridors. We’ll review access during your free estimate.
A cracked crown can create backdrafting conditions within a single heating season, especially in New Brunswick’s older shared flues where gas boilers and fireplaces exhaust into the same clay liner. The Raritan valley humidity accelerates mortar deterioration, so cracks widen faster here than in drier towns. If you manage rental property in the 08901 or 08903 ZIP codes, call (855) 950-3861 for an inspection - estimates are free.
We apply Gelco and HeatShield crown coatings, formulated to remain flexible through Central New Jersey’s repeated winter temperature crossings. These products bond to existing concrete and mortar while allowing expansion and contraction without cracking. Our application includes two coats with feathered edges, backed by the 90-Day Done Right Promise.
Yes, we cap unused flues as standard practice during crown repair or coating. An open flue draws moisture and debris into the chimney chase, accelerating deterioration of the crown we just repaired. Capping is included in our crown service quote when we identify an open flue during inspection. Call (855) 950-3861 to schedule.
Written by Frank Calucci, Owner at Hearthstone Chimney Co., serving New Brunswick and Middlesex County since 1984.