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.
Fast, Reliable Chimney Repair Across Smithtown
Chimney repair in Smithtown usually falls into two buckets: mortar work on the outside and liner or flue work on the inside. A typical repointing job runs $800-$1,800, while a stainless liner replacement generally lands between $2,200 and $4,500 depending on flue length. If you’re seeing spalling brick or a fireplace that smells like oil when the boiler kicks on, call (631) 502-3612 and Wendell or one of his crew will scope the flue with a camera before recommending a single thing.
We’ve worked Smithtown’s capes and splits long enough to know what these chimneys do at 60 and 70 years old. The failures are predictable, which means the fixes shouldn’t be guesswork. That’s why we run a camera down every flue and show you the footage before we quote any repair. No exceptions to that rule, ever.
Why Top Hat Chimney Is Smithtown’s Preferred Chimney Repair Company
Top Hat Chimney has been owner-operated since 1999, and Wendell Pike still puts his name and license number on every job. That matters in a town like Smithtown, where the housing stock has a very specific set of chimney problems and a lot of national outfits quote one price on the phone and another at the door. We don’t play that game.
Smithtown homeowners call us because the person who answers the phone is a live person, around the clock, and often Wendell himself. When we say we’ll be at a house off Jericho Turnpike or near Landing Avenue at a certain time, we call if anything slips. The sweep who shows up is background-checked, in uniform, and knows what a 1960s split-level’s double flue looks like from the inside.
Every repair we complete in Smithtown carries the 90-Day Done Right Promise in writing. If the work isn’t right, one call brings the crew back at no additional cost. Ask anyone on your street. Reputations in this town travel block by block, and ours is built on not selling repairs a chimney doesn’t need.
Key Takeaways
- Older masonry chimneys in Smithtown fail in predictable ways that a camera inspection can confirm in under an hour.
- Typical repair costs in Smithtown run $800-$4,500 depending on whether it’s exterior masonry or interior relining.
- Nothing is recommended without camera evidence you can see yourself. If a chimney can wait a season, we say so.
- Phone answered by a live person, 24/7. No call center, no voicemail box. Call (631) 502-3612.
Our Chimney Repair Services in Smithtown
Mortar Repointing
Mortar joints on a Smithtown chimney take a beating from nor’easter-driven wet snow and the town’s freeze-thaw cycles. Once water gets into the joints and freezes, it opens them wider. Repointing removes the failed mortar and packs in fresh joints, keeping water out before it reaches the brick faces. We match the mortar color and tool the joints to match the original work, which matters on a 1950s cape where a sloppy patch shows from the curb.

Spalling Brick Repair
Spalled brick is brick that’s lost its face. Water soaks in, freezes, and pops the surface off. Smithtown’s older chimneys, exposed to coastal winds off the Sound, see this on the upper courses and around the crown first. We’ll cut out the damaged units, match the replacement brick as closely as the existing stock allows, and set them properly. If we’re replacing more than a few, we’ll tell you whether it’s more sensible to rebuild that section outright.

Chimney Waterproofing
Smithtown homes from the 1950s and 60s were built with porous brick and mortar that were never waterproofed. After sixty-plus years, water intrusion is a given unless something’s done. We use ChimneySaver and other vapor-permeable products that keep liquid water out while letting the masonry breathe. A waterproofed chimney in Smithtown is a chimney that stops losing mortar joints to the freeze-thaw cycle. It’s not a yearly treatment; one application lasts years.

Flashing Repair
The flashing where the chimney meets the roof is the most common leak point on any Smithtown house, and it fails quietly. A few missing nails, a lifted shingle edge, some deteriorated roofing tar, and water tracks down into the attic and along the flue. We cut out the old flashing, install step flashing and counterflashing properly, and make sure the interweave with the roof surface is correct. It’s not glamorous work, but it stops water before the chimney needs a rebuild.

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 Smithtown
We install and service products from DuraFlex, Famco, and Copperfield, among others. If you’ve got a chimney component from one of these manufacturers, we know how it should be installed and what its failure modes are. Smithtown homeowners don’t wait on parts shipped from somewhere out of state; we keep common sizes and components stocked for fast turnaround on flue relining and cap replacement. Your flue doesn’t care how the fire looks. It cares how it breathes, and a liner that’s the right size for the appliance changes everything.
Common Chimney Repair Problems We See in Smithtown Homes
- Cracked terra cotta divider tiles in double-flue chimneys. Smithtown’s capes and splits often vent both the fireplace and an oil burner through one masonry stack with a shared clay divider. At this age, that divider cracks, and combustion gases cross between flues. It’s the town’s signature failure, and it takes a camera to see. See our full Chimney Repair team’s process for how we scope and seal these breaches.
- Spalled and loose brick from nor’easter wet snow loads. Heavy snow sits on the crown, melts into the brick, and refreezes overnight. The face of the brick comes off. We see the worst of it on chimneys facing north and east in Smithtown.
- Oversized flues after oil-to-gas conversion. As National Grid extends gas lines into Smithtown neighborhoods, old oil burners get swapped for gas appliances that need a smaller flue. The masonry flue rarely matches, and that leads to poor draft, condensation, and accelerated creosote accumulation. A reline fixes the sizing.
- Failed crowns and missing caps. A cracked crown lets water run straight down the flue and into the brick. A missing cap invites animals and debris. Both are common on Smithtown chimneys that haven’t been touched since the house was built.
What sets Smithtown apart, though, is the divider tile problem. In the 1950s, 60s, and 70s, builders ran two flues side by side inside one masonry chimney, separated only by a thin terra cotta divider. It worked for decades. Then the clay cracked. When that happens, the oil burner’s exhaust leaks into the fireplace flue and vice versa. It’s a hidden cross-contamination hazard that almost never shows up in newer single-flue houses, and it’s the first thing we check on any older Smithtown cape or split.
On a split-level near Landing Avenue, our tech found exactly that: a shared double-flue chimney where the oil burner’s exhaust was bleeding into the fireplace flue through a cracked terra cotta divider. We scoped both flues with a camera, showed the homeowner the cross-contamination on our tablet, and relined the oil flue with a DuraFlex stainless liner, sealing the breach with HeatShield before rebuilding the damaged crown. That’s the kind of repair you can’t quote honestly without seeing the inside of the flue, and it’s why we never skip the camera.
Pricing for Chimney Repair in Smithtown, NY
Here are honest numbers for the Smithtown market. Mortar repointing on a typical single-story chimney runs $800-$1,800 depending on how many courses are involved. Spalling brick repair runs $400-$1,200 if we’re replacing individual units, more if it’s extensive. Chimney waterproofing is usually $450-$900. Flashing repair typically runs $500-$1,400 depending on the roof pitch and how much flashing needs to come out. And a stainless liner replacement, the fix for that cracked divider tile or an oversized flue after an oil-to-gas conversion, runs $2,200-$4,500 on most Smithtown chimneys. We also stand by our standing offers: $40 off any repair over $200, a free second opinion on any written estimate, no trip charge inside our service county, and 10% off always for seniors and veterans.
Call (631) 502-3612 for a free estimate. The price you hear up front is the price on the invoice. And remember, if we tell you the chimney can safely wait, we’ll tell you that too. Once a year, burn or no burn. Chimneys break in the off-season too.
We Also Serve Cities Near Smithtown
Top Hat Chimney is based locally and serves Smithtown plus the communities around it: Kings Park, Commack, East Northport, and Stony Brook. If you’re in any of those towns, you fall under the same 90-Day Done Right Promise and the same camera-first approach we bring to every Smithtown job. Call us and a live person picks up.
Serving Smithtown, NY - Our Local Coverage Area
We’re based in the Smithtown 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 Repair in Smithtown
That smell is usually a cracked terra cotta divider tile letting oil-burner exhaust bleed into the fireplace flue. It’s the signature failure of Smithtown’s double-flue chimneys from the 1950s through the 70s. A camera inspection will show the breach directly. Call (631) 502-3612 to schedule one, and we’ll show you the footage on the spot.
Most of the time, yes. A masonry flue built for an oil burner is nearly always oversized for a gas appliance, which means weak draft and acidic condensation eating the old clay liner. Smithtown’s oil-heat belt is converting fast as National Grid extends service, and the reline is a standard part of that project. We’ll scope the flue and tell you exactly what’s needed, with brand options like DuraFlex and Famco.
Wet snow loads sit on the crown, melt into brick and mortar, then refreeze overnight. The expansion pops mortar joints open and spalls brick faces, especially on north- and east-facing chimneys. Over a few Long Island winters, that water works its way into the flue and accelerates liner failure from the outside in. Waterproofing and crown repair stop that cycle.
The cracked terra cotta divider between the fireplace flue and the oil-burner flue. At sixty-plus years, that single clay tile has failed on a regular basis in Smithtown’s split-levels. The fix is a stainless liner sealed with HeatShield, not a whole chimney rebuild. Call us, and we’ll prove it with camera footage before we quote anything.
That’s the only way we work in Smithtown. Wendell’s rule is simple: no recommendation without camera evidence you can see yourself. We’ll show you the footage, explain what it means in plain English, and tell you flat out if the chimney can wait. If a written estimate from another company looks high, bring it to us for a free second opinion. Call (631) 502-3612 and ask for Wendell.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Smithtown and its surrounding communities.





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