Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Before
After
Before
After
Before
AfterFast, Reliable Fireplace Services Across Brentwood
Fireplace service in Brentwood costs between $149 and $389 for most gas or wood-burning units, depending on what you’ve got and what shape it’s in. That number comes from the work we actually do in Brentwood’s Capes, ranches, and split-levels week after week. Wendell Pike has owned Top Hat Chimney since 1999, and the crew that shows up at your door is the same crew that’ll be at the hardware store on Saturday. If your fireplace needs a sweep, a damper, a new insert, or a firebox repair, call (516) 968-5380 and you’ll get a live person and an honest price before anyone touches your chimney.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Why Top Hat Chimney Is Brentwood’s Preferred Fireplace Services Company
Brentwood homeowners have a specific problem most of Long Island doesn’t share. The hamlet’s housing stock went up fast in the 1950s through early 1970s, and those Capes and ranches were built around oil-fired boilers venting through big masonry chimneys with 6 to 8 inch clay tile liners. When Brentwood converted to gas in the 1980s and 1990s, most of those flues never got relined. Now a 90,000-BTU gas appliance vents into a flue built for a 200,000-BTU oil burner. That mismatch causes condensation, cracked tiles, and carbon monoxide backdraft. Our Fireplace Services team sees this on nearly every call in the hamlet, and we know exactly how to fix it.
You’ll get Wendell or one of his background-checked, uniformed crew members. They show up when they say they will and call if that changes. The 90-Day Done Right Promise is stamped on every job in writing. One call brings us back, no charge. And the price you hear on the phone is the price on the invoice. That’s how we’ve worked in Brentwood and across Long Island for over 29 years.
Our Fireplace Services in Brentwood
The fireplaces in Brentwood run the full range: original wood-burning hearths from the housing boom, gas inserts retrofitted during the oil-to-gas conversion years, and older wood stoves in the homes nearer the pine barrens. Here’s what we handle most often.
Fireplace Insert
Brentwood homes that converted from oil to gas often left the original masonry fireplace in place and dropped in a gas insert. Done right, that’s a warm, efficient setup. Done on a flue that was never relined, it’s a condensation trap. We size inserts to the actual flue diameter, not the old oil boiler’s venting needs, and we use DuraFlex and Copperfield liners sized correctly for the BTU rating of your appliance. If a full Brentwood Chimney Liner & Rebuild is needed, we handle that first. If the white streaks running down your exterior brick tell us the flue is sweating, we fix the liner before we touch the insert.
Damper Repair
Dampers in Brentwood’s 50 to 70-year-old fireplaces rust and warp. Original throat dampers seize shut from decades of condensation, or they sit slightly open and feed moisture into the smoke chamber. Out near Wicks Road, our crew pulled a Copperfield damper from a 1962 ranch whose fireplace had been burning wet oak all winter. The smoke chamber was glazed with third-degree creosote, and the original 8-inch clay flue showed open mortar joints from freeze-thaw spalling. We ran a Level 2 inspection, dropped a Brentwood Heatshield service resurfacing liner, and reset the crown with a waterproof membrane. The homeowner had visible white efflorescence on the exterior brick, telling us the flue was sweating from oversized gas venting.
Firebox Repair
Fireboxes in Brentwood’s postwar Capes and ranches crack. Freeze-thaw cycles inland from Great South Bay push moisture into the mortar joints, and nor’easters drive wind-driven rain through crowns that were never waterproofed. We rebuild fireboxes with refractory mortar rated for high heat, repoint open joints, and parge smoke chambers so the path from firebox to flue is smooth and sealed. If the firebox is beyond patching, we’ll tell you that plainly and recommend Chimney Repair in Brentwood options, with camera footage to see it yourself before you spend another dollar.
Gas Fireplace Service
Gas fireplaces still need service. Burners collect dust and spider webs, pilot assemblies fail, and thermocouples wear out. In Brentwood specifically, gas fireplaces venting into oversized clay flues pull condensation back down onto the firebox and gas valve. A Brentwood Chimney Cleaning & Sweep can spot this before it becomes dangerous. That’s a corrosion risk and, worse, a carbon monoxide backdraft risk. We clean burner tubes, check venting, test the gas pressure, and make sure the flue is actually carrying exhaust outside, not into the living room.
Trusted Brands We Service in Brentwood
When we install or repair, we use parts from brands we’d put in our own houses: DuraFlex liners, HeatShield resurfacing systems, Copperfield dampers and caps, and Gelco chimney products. We keep common replacement parts stocked for the setups typical in Brentwood homes, so damper swaps, cap replacements, and liner prep don’t stall waiting on a distributor. If your insert or damper is a brand we don’t carry, we’ll order the exact same part and never substitute a “close enough” piece. Wendell has put his name on this work for nearly three decades, and he’s not about to start cutting corners now.
Common Fireplace Problems We See in Brentwood Homes
Every town has its own patterns. Here’s what shows up in Brentwood more than anywhere else we work:
- White efflorescence streaking down exterior brick. That’s the flue sweating from oversized gas venting after an oil-to-gas conversion. The clay tile liner is condensing acidic moisture, and that moisture is eating the mortar from inside. It’s not a cosmetic stain. It’s a liner failure in progress.
- Smoke chamber glazed with third-degree creosote. Brentwood’s inland location means colder winter nights than Bay Shore or other South Shore hamlets that get thermal buffering from the Great South Bay. Homeowners burn longer and hotter, often with oak that hasn’t seasoned a full year. First-degree creosote brushes out. Third-degree is a glaze that needs chemical treatment and, in bad cases, a HeatShield resurfacing.
- Cracked crowns and open mortar joints from freeze-thaw cycles. Brentwood logs more freeze-thaw cycles per winter than coastal hamlets. Water seeps into the crown, freezes, expands, and cracks the mortar. Fifty to 70-year-old chimneys with original single-wythe brick construction take this hard. Nor’easter moisture makes it worse.
- Dampers seized shut or rusted open. Condensation from oversized flues settles on the damper plate. It rusts. Sometimes it freezes in place. Either way, the fireplace doesn’t draft the way it should, and a musty smell drifts into the house in summer.
Pricing for Fireplace Services in Brentwood, NY
A standard fireplace sweep and safety inspection in Brentwood runs $149 to $229 for a wood-burning fireplace and $129 to $199 for gas. Damper repair or replacement typically runs $175 to $450 depending on whether we’re fixing the existing plate or dropping in a new top-sealing Copperfield damper. Firebox repair with refractory mortar starts around $300 and goes to $1,200 for a full rebuild with parging. A fireplace insert installed with a correctly sized liner runs $2,800 to $5,500 in Brentwood, and a HeatShield resurfacing for a cracked clay flue typically costs $1,800 to $3,400. Every job comes with the 90-Day Done Right Promise in writing, a $40 discount on any repair over $200, and a 10% permanent discount for seniors and veterans. We give you the price on the phone before the truck rolls, and there’s no trip charge inside the county. Call (516) 968-5380 for a free estimate.
We Also Serve Cities Near Brentwood
If you’re across the town line, we’re close by. Our Fireplace Services in Brentwood crew also covers Commack, Smithtown, Huntington Station, and West Babylon. Same owner, same crew, same 90-Day Done Right Promise on every job. Scheduling is coordinated from our New York City office, but the technicians who show up are local, background-checked, and in uniform.
Serving Brentwood, NY - Our Local Coverage Area
We’re based in the Brentwood 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 - Fireplace Services in Brentwood
The musty smell comes from condensation in an oversized flue. Your Brentwood Cape or ranch was built for an oil boiler, converted to gas, and the flue was never relined. Warm humid air drops down the chimney in summer, hits the cooler clay tile, and condenses. That moisture carries creosote residue and mortar dust, then settles in the firebox. The fix is a correctly sized liner and a damper that seals. Call (516) 968-5380 and we’ll run a camera inspection to confirm what’s causing the smell before recommending anything.
Every 30 to 40 cords burned, but in practice that means every 6 to 10 months for most Brentwood wood stoves. Brentwood sits inland and loses the Great South Bay’s thermal buffering, so winter nights run colder than Bay Shore. Homeowners burn more, and a lot of the local oak hasn’t seasoned long enough. Wet wood loads up creosote fast. Once a year at minimum, burn or no burn, because chimneys break in the off-season too. If you’re burning pine from the barrens area or green oak, call (516) 968-5380 and we’ll tell you if you can stretch it or if it needs a sweep now.
Yes, but not for soot. Gas fireplaces in Brentwood’s converted oil-to-gas homes vent into oversized clay flues that were never relined. The low exhaust temperature of gas doesn’t push moisture up and out, so condensation collects and breaks down the clay liner from inside. Debris, spider webs, and corroded liner fragments drop into the gas valve and burner. We see it weekly. A gas fireplace needs a venting inspection, not a creosote brush job, and the flue usually needs a correctly sized stainless liner. Call (516) 968-5380 for an inspection.
Those white streaks are efflorescence, and in Brentwood they’re almost always from an oversized gas flue sweating condensation inside the clay tile liner. The moisture leaches salts and minerals through the brick, and they crystallize on the outside surface. It tells you the flue is condensing, and that condensation is damaging the liner and mortar joints. It’s one of the most reliable signs we see on Brentwood chimneys that an oil-to-gas conversion skipped the relining step. We’ll drop a camera down to show you the liner condition, then tell you plainly whether it needs relining or whether it can safely wait. Call (516) 968-5380 for a free second opinion on any written estimate you’ve received.
Yes, before you use it. A 1960s split-level in Brentwood has an original 6 to 8 inch clay tile liner now 55 to 65 years old, and it was almost certainly built for an oil boiler that’s since been converted to gas. A Level 2 inspection includes camera footage of the flue interior, and in a chimney that old, we’re checking for cracked tiles, open mortar joints, and the condensation damage that oversized gas venting causes. We won’t recommend work without showing you the footage. If the liner is compromised, we’ll talk options: HeatShield resurfacing or a new DuraFlex stainless liner. Call (516) 968-5380 to schedule a Level 2 inspection, and we’ll give you a straight answer on whether the fireplace can be used safely today.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Brentwood since 1999.
