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 Chimney Liner & Rebuild Across Commack
A chimney liner replacement or rebuild in Commack typically runs between $2,800 and $7,500 depending on whether we’re relining a single flue, rebuilding a crown, or tearing down and reconstructing the top half of the chimney. Most jobs take one to two days on-site, and we don’t leave until a camera inspection confirms the liner is seated correctly from top to bottom. If you’re noticing draft problems, flaking mortar inside the firebox, or you converted from oil to gas without touching the chimney, call Wendell at Top Hat Chimney at (631) 502-3612 for an honest assessment. You won’t get upsold. You’ll get the camera footage and a plain-English verdict, every time, no exceptions.
Why Top Hat Chimney Is Commack’s Preferred Chimney Liner & Rebuild Company
Wendell Pike started Top Hat Chimney in 1999, and he’s been on roofs in Commack long enough to know which streets off Jericho Turnpike have the worst freeze-thaw spalling and which 1960s colonials hide shared flues. Nobody in our crew is a subcontractor. The sweep who shows up at your door is the same person whose name is on the job ticket, and if anything isn’t right, the 90-Day Done Right Promise means one call brings us back at no additional cost. You’ll find a live person answering our phone at any hour, not a call center. When you schedule, you get a real arrival window, and if Wendell’s crew is running late, you’ll hear about it before you’re left wondering.
Ask anyone on your street. Commack homeowners who’ve used Top Hat Chimney tend to mention two things: the price we quote on the phone is the price on the invoice, and we never recommend work the camera doesn’t back up. That matters in a town where original clay tile liners from the Eisenhower and Kennedy years are now cracking at the joints. We’ll tell you plainly when a liner can be repaired, when it needs replacement, and when you can safely wait another season. No scare-selling. Just what the flue is actually doing.
Our Chimney Liner & Rebuild Services in Commack
Most Commack homes we inspect fall into one of four situations. Here’s what we actually do about each, and what it means for a house built between 1950 and 1975.
Stainless Steel Liner
When a clay tile liner in a Commack ranch or split-level has cracked or separated at the joints, a stainless steel liner is often the cleanest fix. We use Chimney Liner & Rebuild products from DuraFlex and Copperfield because they’re built to handle the acidic condensation that modern gas furnaces produce, something the original clay tiles were never designed for. A stainless liner restores proper draft, seals the flue from carbon monoxide leakage, and brings the chimney up to current code without tearing the house apart.
Flexible Liner
Flexible liners are the go-to when a Commack chimney has offset flue tiles or a tight throat that would make rigid sections difficult to install. We run them in through the top, anchor them at the cap, and re-parge the tile joints where needed. On homes near the Northern State Parkway corridor where roof pitch runs steep, a flexible liner often means we can do the job without removing siding or cutting into the chimney chase.
Liner Replacement
If you converted from oil to natural gas and left the original oversized clay tile liner in place, condensation has likely been eating at those tiles from the inside out. We see it on nearly every gas-converted Commack home we clean. Liner replacement is not optional in that scenario; it’s code compliance. A new stainless liner sized to the modern appliance, installed with a proper top plate and cap, restores draft and protects the surrounding masonry from further acidic deterioration.
Partial Rebuild
Commack’s wet winters and repeated freeze-thaw cycles do real damage above the roofline. When a crown is spalled and a few courses of brick below it are loose, a partial rebuild is usually the right call. We take the chimney down to sound masonry, rebuild the corbelled cap, pour a proper concrete crown with a drip edge, and flash it so water can’t get behind the brick. Most partial rebuilds in Commack run one full day, with the new mortar matching the existing color as closely as the original mix allows.
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.
Trusted Brands We Service in Commack
Wendell’s crew installs and services liners and repair products from DuraFlex, HeatShield, and Copperfield, mills we’ve worked with for years because they hold up to the specific conditions in central Suffolk County. Not every liner brand handles the kind of wet, acidic environment created by gas conversions in 60-year-old clay tile flues, and we don’t install materials we wouldn’t put in our own chimney. Because we stock common DuraFlex liner sections and HeatShield repair materials on the truck, many Commack jobs move faster than you’d expect once we’re on-site.
Common Chimney Liner & Rebuild Problems We See in Commack Homes
- Shared flues from the oil-burner era. On a street of split-levels off Jericho Turnpike, our tech found a 1962 colonial where the oil-burner flue and the fireplace flue shared a single clay tile liner. The homeowner had been fighting draft problems since converting to gas, and the shared flue was why. A Level 2 inspection documented it, and we replaced it with a DuraFlex stainless liner before rebuilding the spalled crown.
- Oversized clay tile liners after gas conversion. The original liner in a 1950s or 60s Commack home was sized for a high-BTU oil burner. A modern gas furnace vents much cooler exhaust, which condenses inside that oversized tile and turns acidic. Those tiles quietly rot from the inside, and you won’t know it until a camera goes down the flue.
- Freeze-thaw cracking above the roofline. Central Suffolk winters cross the freezing point over and over. Water gets into hairline cracks in the mortar cap and crown, freezes, and pries the masonry apart. By spring, we regularly find spalled bricks and separated tile sections that weren’t there when the last fire was lit in the fall.
- Cross-contamination in attached or closely spaced flues. When neighboring chimneys share a party wall or run side by side, a deteriorated liner in one flue can allow exhaust from a neighbor’s oil or gas appliance into an adjacent flue. It’s rare, but we’ve documented it, and it’s a real argument for a liner inspection even if your own fireplace rarely burns.
Pricing for Chimney Liner & Rebuild in Commack, NY
Here’s what Commack homeowners can expect to pay based on the jobs we do most often. A stainless steel liner for a single gas or oil flue in a typical 1950s-70s home runs $2,800 to $4,200 installed, including the liner, top plate, cap, and termination. Liner replacement in a home with significant tile deterioration runs $3,500 to $5,500 because we remove the old tiles and often repair parging before the new liner goes in. A partial rebuild of the top courses, including crown and flashing, runs $2,200 to $4,800 depending on how many courses come down and what the roofline looks like. A full chimney rebuild from the roofline up starts around $6,500 and can reach $12,000 or more if we’re reconstructing the fireplace throat and smoke chamber. Every quote is flat-priced before the first tool comes off the truck. We’ll show you the camera footage and explain why the number is the number. Call (631) 502-3612 for a free estimate, and remember: we offer $40 off any repair over $200, and seniors and veterans always get 10% off.
We Also Serve Cities Near Commack
Beyond Commack, Wendell and his crew serve East Northport, Kings Park, Smithtown, and Greenlawn. If you’re on the border near the Sunken Meadow Parkway or out toward Veterans Highway, you’re still in our service area. Same live phone answer, same flat-price quote, same 90-Day Done Right Promise on every job.
Serving Commack, NY - Our Local Coverage Area
We’re based in the Commack 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 Liner & Rebuild in Commack
The original liner was sized for a hot, high-volume oil burner exhaust. A modern gas furnace sends cooler, moisture-laden exhaust up a flue that’s now too big for it. That exhaust condenses on the tile walls, the condensate is acidic, and the tile erodes from the inside. Over years, you get cracked tiles, separated joints, and a flue that leaks exhaust into the wall cavities. A stainless steel liner sized to the gas appliance fixes it. Call (631) 502-3612 to schedule a liner assessment.
Because a deteriorated liner in one flue can let exhaust from your own appliance or a neighbor’s migrate into a flue that’s supposed to be dormant. In attached homes or chimneys that share a wall, the stack isn’t a sealed system if the tile liners are cracked. An inspection with a camera tells you whether your flue is still isolated and safe. We’ll show you the footage. Estimates are free.
Hairline tile cracks and offset flue joints. It’s not dramatic from the outside. No smoke pouring into the house, no outright collapse. But the camera shows tiles separated by half an inch and sections where mortar was never properly parged, and that’s enough to let exhaust through. It’s the thing we catch on a sweep and say, “We need to talk about relining this.”
Not always. Some conversions were done with proper liner retrofits at the time, and the existing stainless system is still sound. But if the conversion happened and the original clay tile liner stayed in place, you almost certainly need replacement, because that liner is now experiencing condensation it was never built for. The only way to know is to put a camera down the flue. We do that on every inspection, and you’ll see the footage before you’re asked to spend a dollar. Call (631) 502-3612 for a free estimate.
Every year, if you burn regularly at all, and at least every two years if the fireplace sits idle. Once a year, burn or no burn. Chimneys break in the off-season too. A visual inspection takes less than an hour, and a camera inspection isn’t much more. It’s the cheapest insurance you’ll buy for a 60-year-old masonry chimney in central Suffolk County’s freeze-thaw climate.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Commack since 1999.