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.
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AfterFast, Reliable Chimney Liner & Rebuild Across Belmont
Chimney Repair in Belmont like liner replacement and partial rebuilds typically run $1,800-$4,500 depending on flue count and access, with most jobs completed in a single visit after a Level-2 camera inspection. We dispatch to Belmont from our Boston office, and our crews know the hill-and-valley layout well enough to navigate the tight driveways off Concord Avenue and the steeper pitches around Belmont Hill without wasting your morning.
We’ve been working on Belmont chimneys long enough to recognize the pattern: a beautiful 1920s Colonial Revival with an original masonry stack that was built for coal, converted to oil sometime in the 1960s, then switched to gas - and never properly resized for the appliance now venting through it. That mismatch is where most of Belmont’s chimney problems start. If you’re smelling smoke in the basement, seeing moisture stains around the thimble, or your gas boiler has been backdrafting on windy days, the issue is almost always the flue, not the furnace. Call us at (781) 404-3793. A live person answers, 24 hours a day.
Why Hearthstone Chimney Co. Is Belmont’s Preferred Chimney Liner & Rebuild Company
We’ve served communities across eastern Massachusetts for over 42 years, and Belmont has been part of our route since the beginning. The owner, Russell Haines, built this company on the idea that a chimney sweep should explain what he found the way he’d explain it to his own neighbor - plain facts, photos you can see, and a price that doesn’t change once the work starts.
Our Chimney Liner & Rebuild in Belmont work is documented like an engineer and explained like a craftsman. Every Level-2 inspection ends with dated photos and a written verdict. If we recommend a liner replacement, you’ll see the spalling tile or cracked mortar joint that justifies it. If a partial rebuild makes more sense than a full teardown, we’ll show you exactly where the brick is failing and why. Nothing gets quoted without camera evidence you can review yourself.
Our 90-Day Done Right Promise applies to every job in Belmont: if it’s not right, we make it right, backed in writing with no paperwork and no arguing. Technicians are background-checked and uniformed, pricing is agreed upfront, and most liner and rebuild jobs finish in one day. The number on the estimate is the number on the invoice.
Our Chimney Liner & Rebuild Services in Belmont
Stainless Steel Liner Installation
A stainless steel liner is the right fix for most Belmont gas conversions, and is often part of our Fireplace Services in Belmont. We size the liner to the appliance, not to the old coal flue, using DuraFlex or Olympia Chimney products rated for the BTU output and venting category. In Belmont Hill homes with two or three flues in one stack, we often find the active gas boiler has been pushed into an oversized fireplace flue or an abandoned coal flue with no liner at all. The backdrafting stops once the right-sized stainless tube is in place. Typical installation in Belmont runs $2,200-$3,800 for a single-flue gas appliance, including the camera inspection and permit-ready documentation.
Flexible Liner Solutions
Some Belmont chimneys have offsets or bends that rigid pipe can’t navigate, especially in the tighter construction of homes built between 1900 and 1930. Flexible liners from DuraFlex handle those transitions without breaking the flue’s draft performance. We see this need most often in Victorian-era homes off Pleasant Street where the chimney was built around a central stack with multiple directional shifts. A flexible liner installation in Belmont typically costs $2,600-$4,200 depending on length and access.
Liner Replacement
When the original clay tile liner is spalling, cracked, or missing sections - common in Belmont’s 1895-1950 housing stock - replacement is the only safe option. We remove the damaged tile, inspect the surrounding masonry with a camera, and install a new liner system sized to your current heating appliance. In Belmont, where freeze-thaw cycles attack mortar joints every winter, we often find that the liner failure has progressed to the point where a partial rebuild of the surrounding brick is also necessary. Liner replacement alone runs $1,800-$3,200; combined liner and partial rebuild work typically falls in the $3,500-$5,500 range.
Partial Chimney Rebuild
Not every failing chimney needs to come down to the roofline. In Belmont, we regularly perform partial rebuilds of the upper stack, the Belmont Chimney Cap & Crown, or the area around a damaged thimble where the liner exits. This preserves sound lower masonry while addressing the specific failure point. On Belmont Hill especially, where taller stacks catch more wind and weather, the top six to eight courses of brick often deteriorate faster than the rest. A partial rebuild in Belmont typically costs $2,800-$4,500, compared to $8,000-$15,000 for a full teardown and reconstruction.
What happens when you call
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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 Belmont
We work exclusively with professional-grade materials: DuraFlex stainless and flexible liners, HeatShield cerfractory resurfacing products, Gelco chimney caps, Olympia Chimney components, Famco venting hardware, and Copperfield masonry supplies. We stock common liner diameters and fittings locally, so Belmont jobs don’t wait on shipping. When your boiler is venting into an unlined flue and the temperature is dropping, that turnaround matters.
Common Chimney Liner & Rebuild Problems We See in Belmont Homes
- Original clay tile spalling from freeze-thaw damage. Belmont’s winters cycle above and below freezing dozens of times, forcing moisture into porous clay tile and mortar. The tile face flakes off, the liner loses its smooth draft surface, and gaps open between sections. A cleaning brush can’t fix this - replacement is the only cure.
- Gas appliances vented into oversized coal or oil flues. The flue that handled your grandfather’s coal furnace is three times the volume your gas boiler needs. That oversize kills draft velocity, causes backdrafting on cold starts, and lets exhaust linger in the chimney where it condenses and accelerates liner deterioration.
- Multi-flue stacks with no labeling and improper connections. In Belmont Hill homes especially, a single large stack routinely contains two or three flues - an abandoned coal-furnace flue, an active gas-appliance flue, and a fireplace flue - with no clear labeling, so we treat every Belmont Hill chimney as a multi-flue mystery until the camera says otherwise. Past conversions often added shared connections or shifted appliances between flues without updating the liner.
- Wind-driven downdraft from Belmont Hill’s exposed elevation. The grade around Belmont Hill and the taller chimney stacks on many homes amplify prevailing westerly winds. Homeowners call us thinking the fireplace is broken; the real problem is stack geometry and missing or damaged chimney caps that let wind pressurize the flue.
Pricing for Chimney Liner & Rebuild in Belmont, MA
These are the numbers we quote in Belmont. They’re based on actual jobs completed here, not national averages.
| Service | Typical Range in Belmont |
|---|---|
| Level-2 camera inspection with photo report | $249-$349 |
| Stainless steel liner, single flue (gas appliance) | $2,200-$3,800 |
| Flexible liner with offsets | $2,600-$4,200 |
| Liner replacement (clay tile removal, new liner) | $1,800-$3,200 |
| Liner replacement + partial rebuild | $3,500-$5,500 |
| Partial rebuild (upper stack, crown, or thimble area) | $2,800-$4,500 |
| Full chimney rebuild | $8,000-$15,000 |
What moves the price: flue count, liner diameter, whether the existing tile can be removed without damaging surrounding brick, roof access, and whether the appliance connection needs modification. We agree on the full price before booking the job. No surprises on the bill. Estimates are free, and we bring the camera to every estimate so you see what we see.
We Also Serve Cities Near Belmont
Our Chimney Liner & Rebuild crews work throughout the area, including Belmont, Medford, Winchester, Lexington, and Woburn. Dispatch and scheduling are coordinated from our Boston office. Same standards, same brands, same written guarantee in every town.
Serving Belmont, MA - Our Local Coverage Area
We’re based in the Belmont 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 Belmont
Yes. Massachusetts building code and NFPA 211 require a properly sized liner for every fuel-burning appliance, and gas exhaust is more acidic and moisture-laden than oil, so it deteriorates unlined or improperly sized flues faster. In Belmont’s housing stock, we regularly find gas boilers vented into old coal flues with no liner at all - a condition that backdrafts carbon monoxide into basements and destroys the chimney from the inside. Call (781) 404-3793 for a camera inspection and we’ll show you exactly what your flue looks like.
You probably don’t, and neither did the previous owner. On a 1920s Colonial Revival off Prospect Street on Belmont Hill, our tech ran a camera down two flues in one wide stack: the original coal-furnace flue was unlined and shedding clay tile, while the active gas boiler had been pushed into the fireplace flue with no dedicated liner. We installed a DuraFlex stainless steel liner sized to the boiler, ground and resurfaced the spalling tile on the abandoned side, and gave the homeowner the recorded camera footage so they could see the old flue before we quoted a rebuild. The draft and backdrafting complaints stopped immediately after the liner went in, and the fireplace flue was returned to its intended use. The only way to know for sure is a camera inspection - we treat every Belmont Hill chimney as a multi-flue mystery until the camera says otherwise.
Yes. Our entire process is built to prevent upselling. We document every finding with photos, explain the difference between a condition that needs immediate repair and one that can be monitored, and give you the camera footage to review yourself. If the liner is cracked but the surrounding masonry is sound, we quote liner replacement. If the brick is spalling and the mortar is gone, we quote partial rebuild. If both are failing, we show you both and let you decide the priority. Nothing is recommended without evidence you can see. The 90-Day Done Right Promise means if we recommend the wrong scope, we fix it at our expense - so we have every reason to get it right the first time.
Every 12 months if you have any fuel-burning appliance venting through it, regardless of fireplace use. In Belmont, where most homes heat with gas boilers vented into the same stack as the fireplace, the active appliance is wearing the liner year-round. The fireplace may sit cold, but the boiler is producing acidic condensation that attacks clay tile and mortar daily. Annual Level-2 inspection with a camera is the standard we recommend for every Belmont home with pre-1950 construction. Call (781) 404-3793 to schedule - estimates are free.
Third-degree creosote is a thick, tarry, or hardened glaze that ranges from dark brown to black, often resembling melted plastic or shiny resin coating the liner walls. It matters because it is highly flammable and restricts flue diameter, which kills draft and can cause chimney fires or carbon monoxide backup. In Belmont, we find it most often in fireplace flues that were used for wood burning while the adjacent furnace flue was never properly separated - a common condition in multi-flue stacks where past conversions left improper connections. Third-degree creosote cannot be removed with a standard brush; it requires rotary mechanical cleaning or, in severe cases, liner replacement. If we find it during your camera inspection, we’ll show you the footage and explain whether cleaning or replacement is the safer path. Call (781) 404-3793 for an exact assessment.
Ready to know what your chimney actually needs? Call (781) 404-3793 now. A live person answers, 24 hours a day, 7 days a week. We’ll schedule your free estimate with a Level-2 camera inspection, show you photos of your flue condition, and give you an upfront price that won’t change. Most liner and rebuild jobs are completed in a single visit, and every job is backed by our 90-Day Done Right Promise in writing.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Belmont and surrounding communities since 1984.