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 Fireplace Services Across Lexington
Fireplace service in Lexington, MA typically runs $180-$650 depending on the work needed, and our Fireplace Services team schedules most appointments within a few business days. We’re familiar with the chimneys here, from the colonial-era stacks near the Battle Green to the mid-century ranches off Woburn Street, and we carry the parts to finish most jobs in one visit. If your fireplace is smoking into the room, your damper won’t seal, or you’re converting from wood to gas, call us at (781) 404-3793. Dispatch and scheduling are coordinated from our Boston office, but our crews live and work this territory daily.
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.
Why Hearthstone Chimney Co. Is Lexington’s Preferred Fireplace Services Company
We’ve been answering the phone with a live person for over 42 years, and that hasn’t changed. When you call (781) 404-3793, day or night, a human being picks up - not a voicemail tree, not a callback queue.
Our technicians are background-checked, uniformed, and arrive with Level-2 camera inspection equipment. Every inspection ends with photos you can see and a plain-English verdict. We don’t recommend liners, caps, or rebuilds without camera evidence you review yourself. The 90-Day Done Right Promise backs every job in writing - if it’s not right, we come back, no paperwork, no arguing.
We know Lexington’s housing stock intimately. The 18th-century colonials clustered around the Battle Green and along Massachusetts Avenue were built with lime mortar and hand-laid flue dimensions that don’t appear on modern sizing charts. The 1950s-1970s ranches and split-levels that ring the town center have aging clay-tile flues cracked by decades of freeze-thaw. Both require different approaches, and we don’t guess.
Our Fireplace Services in Lexington
Wood Burning Fireplace Service
Lexington’s mature oak and maple canopy drops heavy debris into flues every fall, and that restriction accelerates creosote buildup through the heating season. We see this especially on homes near the town’s conservation land, where the canopy is densest. Our wood burning fireplace service includes a full Level-2 camera inspection, sweep of the flue, and examination of the firebox and smoke chamber. For colonial homes off Percy Road or Clarke Street, we map shared flue passages first - a single stack often feeds two or three original hearths on different floors, and each opening needs individual attention to prevent cross-contamination.
Gas Fireplace Service
Many Lexington homeowners converted wood fireplaces to gas inserts during the 1980s and 1990s, and those units now need valve, pilot, and burner service. We service and repair gas fireplace components, check venting integrity, and verify that the original chimney structure safely handles the appliance’s exhaust profile. On newer installs, we use DuraFlex liner systems when the existing flue requires adaptation. Every gas service includes combustion analysis and a written condition report.
Fireplace Insert Installation & Service
Fireplace inserts are a practical upgrade for Lexington’s drafty colonial fireplaces, but the installation demands precise fit and proper venting. We measure the firebox and flue ourselves - never off a standard chart - and specify inserts from professional-grade lines that match your hearth’s actual dimensions. For historic district properties, we coordinate any exterior modification with preservation requirements before work begins. Inserts we install carry our 90-Day Done Right Promise, and we show you the camera footage of the flue condition before we quote the job.
Damper Repair & Firebox Repair
A failed damper costs you heated air up the flue all winter. In Lexington’s older homes, we find original cast-iron throat dampers rusted solid or warped from decades of use. We repair or replace dampers with stainless steel assemblies sized to the actual throat opening. Firebox repair addresses cracked refractory panels, deteriorating mortar joints, and heat-compromised brick - common in fireplaces that have burned continuously since the 1970s energy crisis. We use HeatShield refractory repair systems and Copperfield firebox materials, matched to the specific damage our camera inspection documents.
Fireplace Conversion
Converting a wood fireplace to gas, or updating an older gas system, requires more than dropping in a new unit. We evaluate the chimney’s capacity for the new appliance’s exhaust, verify clearances to combustibles (a particular concern in Lexington’s tight colonial fireboxes), and handle the gas line coordination. For homes in the Historic Districts Commission’s purview, we file the necessary review documentation before any exterior venting or cap modification.
Trusted Brands We Service in Lexington
We stock parts and materials from Olympia Chimney, Famco, and Copperfield - professional-grade lines, not builder-grade substitutes. For Lexington customers, this means faster turnaround on repairs and replacements. When we find a failed cap on a home near Woburn Street or a cracked flue tile in a Bedford Street ranch, we don’t wait on a parts order from three states away. We carry the inventory to complete most jobs in a single visit, with no-hassle upfront pricing: the number on the estimate is the number on the invoice.
Common Fireplace Services Problems We See in Lexington Homes
- Soft lime mortar from freeze-thaw damage. Lexington’s winter temperatures cross the 32°F threshold repeatedly, aggressively degrading the lime mortar joints on colonial-era chimneys. We camera-inspect to find spalling and joint failure that isn’t visible from the roofline.
- Shared flue passages in colonial stacks. On streets immediately off the Battle Green, chimneys often serve multiple original hearth openings on stacked floors. Without mapping, a sweep can under-clean the shared passage and leave debris that cross-contaminates between fireplaces.
- Heavy fall debris restricting draft. The town’s mature canopy of oaks and maples fills flues with leaves and twigs each autumn. Combined with creosote, this restricts draft and can push smoke into living spaces when the fireplace is lit.
- Aging clay-tile flues in mid-century homes. The 1950s-1970s ranches and split-levels that surround Lexington’s center have flue tiles now reaching 50-70 years of service. Thermal cycling cracks them, and the gaps allow heat transfer to surrounding framing - a condition our camera inspection catches before it becomes hazardous.
Pricing for Fireplace Services in Lexington, MA
| Service | Typical Range in Lexington |
|---|---|
| Standard fireplace sweep & Level-2 inspection | $180-$260 |
| Gas fireplace service (valve, pilot, burner) | $150-$280 |
| Damper repair or replacement | $220-$450 |
| Firebox refractory repair | $350-$650 |
| Fireplace insert installation | $2,800-$4,500 |
| Fireplace conversion (wood to gas) | $3,200-$5,800 |
What moves the needle: accessibility of the firebox and flue, whether the chimney requires scaffolding or ladder work, the condition of existing components, and whether the home falls under Historic Districts Commission review (which adds a filing step but not hidden cost). We provide a written, itemized estimate before any work begins, and we don’t charge for the estimate itself. Call (781) 404-3793 for exact pricing on your specific fireplace.
We Also Serve Cities Near Lexington
Our crews work throughout the area, and we regularly schedule Fireplace Services in Lexington alongside appointments in Woburn, Bedford, Winchester, and Burlington. If you’re in one of these neighboring towns, the same live-answer phone line and same technician standards apply.
Serving Lexington, MA - Our Local Coverage Area
We’re based in the Lexington 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 Lexington
Yes. Colonial chimneys in Lexington were built with lime mortar and hand-laid, non-standardized flue dimensions that require physical measurement and camera inspection from top to bottom. The 1960s ranch chimneys used standardized clay-tile flues with Portland-cement mortar, so we look for different failure modes - primarily cracked tiles and deteriorated mortar joints from thermal cycling. Either way, we show you the camera footage before recommending any work. Call (781) 404-3793 to schedule - estimates are free.
Any liner, cap, or exterior modification on a property within the Lexington Historic Districts Commission’s purview must clear preservation review before work begins. We handle this filing as part of our process, and we specify materials - often copper or custom-fabricated assemblies from Copperfield or Famco - that meet both functional and aesthetic requirements. The review adds time to scheduling but not hidden cost. Call (781) 404-3793 and we’ll confirm your property’s status.
Even minimal burning produces creosote, and Lexington’s heavy fall debris load from the town’s mature oak and maple canopy compounds the problem. Leaves and twigs restrict airflow, which causes incomplete combustion and accelerated creosote formation on the next burn. An annual sweep removes both hazards and includes a camera inspection that catches deterioration before it becomes expensive. The $89 Seasonal Tune-Up covers this service. Call (781) 404-3793 to book.
First-degree creosote is dry, flaky, and brushes off easily - what you’d see after a season of hot, well-oxygenated fires. Third-degree creosote is thick, tar-like, and hardened to the flue wall; it forms when fires smolder at low temperatures, which happens in Lexington’s older fireplaces with restricted draft from debris or poor damper function. Third-degree creosote cannot be brushed out and requires chemical treatment or mechanical removal. Our camera inspection identifies which type you have and documents it with photos you can see. Call (781) 404-3793 for an assessment.
Yes. On streets like Percy Road and Clarke Street near the Battle Green, we regularly find chimneys with shared flue passages feeding two or three stacked hearths. We map the flue geometry with our camera before running brushes, cleaning each opening’s contribution to the shared passage individually. Without this mapping, debris from one fireplace can cross-contaminate another, and the sweep may miss significant buildup in the shared section. We show you the flue map on our monitor before we begin. Call (781) 404-3793 to schedule.
On Clarke Street we opened up a 1700s center-chimney colonial whose two stacked hearths shared one irregular rubble-stone-base flue, and a camera run showed the original lime mortar joints had gone soft and were spalling from the freeze-thaw cycle. Because the flue’s hand-laid dimensions didn’t line up with any standard sizing chart, we measured it by hand rather than ordering off a table, then wrapped a HeatShield flue liner to the actual geometry and reset the smoke chamber. The homeowner watched the camera footage on our monitor before agreeing to any of it. Done right - and we stand behind it.
We’re currently offering $50 off any repair over $250, a free second opinion on any written estimate you bring us, and a permanent 5% senior and veteran discount. Every job carries the 90-Day Done Right Promise in writing: Krafted right, Every time, Your home first, Standing behind it.
Call (781) 404-3793 for a free estimate. A live person answers 24 hours a day, 7 days a week.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Lexington and local communities for over 42 years.