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 Lexington
Chimney liner installation and chimney rebuild work in Lexington, MA typically runs $2,800-$8,500 depending on whether you’re relining a single flue or rebuilding aged masonry, and most of our Chimney Liner & Rebuild jobs in town are completed in one visit after a Level-2 camera inspection. If you live near the Battle Green, off Massachusetts Avenue, or in one of the 1950s ranch neighborhoods toward the Burlington line, we’ll coordinate dispatch from our Boston office and have a crew to you with clear upfront pricing. Call (781) 404-3793 - a live person answers, 24 hours a day.
Why Hearthstone Chimney Co. Is Lexington’s Preferred Chimney Liner & Rebuild Company
We’ve been serving Lexington homeowners for more than four decades, and we’ve learned the town’s chimneys the way a carpenter learns grain patterns. The colonial-era homes near the Battle Green, the Federal-style houses along Massachusetts Avenue, and the mid-century ranches toward Woburn all present different liner and rebuild challenges - and we’ve handled all of them.
Our technicians are background-checked, uniformed, and arrive with the tools and materials to finish most jobs in a single visit. Every inspection ends with photos you can see and a plain-English verdict. No jargon, no pressure. The 90-Day Done Right Promise backs every liner installation and rebuild in writing - if it’s not right, we come back, no arguing, no paperwork chase.
Calls are answered by a live person, every hour of every day. Not a callback queue. Not an app.
Our Chimney Liner & Rebuild Services in Lexington
Flexible Liner Installation
Flexible liners are often the right answer for Lexington’s older masonry, especially in the colonial homes off Percy Road and Clarke Street where flue passages were hand-laid and never standardized. A flexible DuraFlex liner can navigate the slight offsets and irregular dimensions that rigid pipe cannot. We physically measure every flue before ordering material - no guessing from a chart. Most flexible liner installations in Lexington run $2,800-$4,200 for a single flue, including the cap and connector.
Liner Replacement
Many Lexington homes built in the 1960s and 1970s have original clay flue tiles that have cracked after sixty New England winters. The freeze-thaw cycle here crosses 32°F repeatedly through January and February, and each cycle opens hairline fractures wider. We remove the failed liner, inspect the surrounding masonry with a camera, and install a new stainless or flexible system sized to your appliance. Liner replacement in Lexington typically costs $3,200-$5,500. We also check whether your cap height and screening are adequate - the oak and maple canopy here dumps serious leaf load each fall.
Partial Rebuild
When the upper courses of a chimney have spalled or the crown has cracked but the lower structure is sound, a partial rebuild preserves what works and fixes what doesn’t. This is common on Lexington’s 1700s and 1800s masonry where lime mortar has eroded at the crown but the rubble-stone base remains solid. We match existing brick and repoint with appropriate mortar - never Portland cement on colonial lime-mortar construction, which traps moisture and accelerates decay. Partial rebuilds in Lexington generally fall between $4,500 and $7,000.
Full Chimney Rebuild
A full rebuild becomes necessary when the structural integrity of the stack is compromised - widespread spalling, leaning, or internal collapse of multiple flue walls. In Lexington’s historic districts, this work may require Historic Districts Commission review if the chimney is visible from the public way. We handle the documentation and work with the commission’s requirements. Full rebuilds start around $8,500 and are backed by our 90-Day Done Right Promise in writing.
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 Lexington
We install professional-grade materials from DuraFlex, HeatShield, and Famco - no builder-grade substitutes. Our Boston office stocks common liner diameters and fittings, so most Lexington jobs don’t wait on parts. When we fabricated that custom HeatShield section for the Clarke Street colonial, we had the DuraFlex extension and copper cap on the truck. That’s how we work: measured once, built right, installed with materials that will outlast the next generation of ownership.
Common Chimney Liner & Rebuild Problems We See in Lexington Homes
- Shared flue passages in colonial homes. In the oldest sections off the Battle Green, stacked hearths on multiple floors often vent into a single flue. Without careful mapping, a liner sized for one opening can block or pressurize the other, forcing combustion gases back into living spaces - yours or your neighbor’s.
- Lime-mortar degradation from freeze-thaw cycling. Lexington’s winter temperatures oscillate across the freezing point repeatedly, attacking the lime mortar joints in 1700s masonry far faster than Portland-cement construction. Standard liner anchor plates can crack this softer brick, causing spalling around the crown.
- Leaf and debris choking from dense canopy. The mature oaks and maples that define Lexington’s streetscape drop heavy litter into uncapped flues each fall. A new liner installed without correcting cap height or adding proper screening can re-clog within one heating season, choking draft and accelerating creosote buildup.
- Irregular flue geometry in pre-Revolution chimneys. Hand-laid flues in homes near Massachusetts Avenue and the Battle Green don’t conform to modern sizing charts. Physical measurement is mandatory before any liner recommendation. We’ve seen flues that taper, offset, or share walls with adjacent passages in ways no catalog accounts for.
Pricing for Chimney Liner & Rebuild in Lexington, MA
| Service | Typical Range in Lexington |
|---|---|
| Flexible Liner Installation (single flue) | $2,800 - $4,200 |
| Liner Replacement (stainless or flexible) | $3,200 - $5,500 |
| Partial Rebuild (upper courses + crown) | $4,500 - $7,000 |
| Full Chimney Rebuild | $8,500 - $14,000+ |
| Level-2 Camera Inspection with Photo Report | $275 - $350 |
What moves the number? Flue height, access (steep roofs on colonial homes take longer), whether we find hidden damage during tear-out, and whether Historic Districts Commission review adds documentation time. We give you the full price before we start - the number on the estimate is the number on the invoice. Senior and veteran discounts of 5% apply. Free second opinions on any written estimate from another company. Call (781) 404-3793 for an exact quote - estimates are free.
We Also Serve Cities Near Lexington
Our crews work Chimney Liner & Rebuild in Lexington and the surrounding towns regularly - Woburn, Bedford, Winchester, and Burlington are all within our standard service radius. The same live-answer phone, same upfront pricing, same 90-Day Done Right Promise applies whether you’re off the Battle Green or near the Burlington Mall. Dispatch is coordinated from our Boston office, and we schedule to keep drive time reasonable.
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 - Chimney Liner & Rebuild in Lexington
No, and it shouldn’t try to. In Lexington’s colonial construction, what looks like one flue may be a shared passage with internal dividers that have eroded over centuries. We map every opening with a camera before any liner work. On Clarke Street, we opened a 1790s colonial where the second-floor hearth and first-floor firebox shared a single irregular flue passage; physical measurement showed the passage was too narrow for a standard sizing chart, so we fabricated a custom HeatShield liner section with a stainless DuraFlex extension, re-poured the smoke chamber, and capped the stack with a new copper chimney cap. The homeowner’s first-degree creosote never had a chance to become third-degree. Call (781) 404-3793 to schedule mapping - estimates are free.
Yes, if the property falls within the Lexington Historic Districts Commission’s purview and the chimney is visible from a public way. The commission reviews exterior alterations to preserve the town’s colonial character. We handle the documentation and have worked with their requirements before - it’s straightforward if done correctly the first time. Interior flue work typically does not require review. Call (781) 404-3793 and we’ll confirm whether your property is affected during the estimate visit.
Because your flue was hand-laid by a builder who never saw a chart. Colonial flues in Lexington taper, offset, share walls, and vary in dimension every few feet. We’ve measured flues near Massachusetts Avenue that narrow from 8×12 inches to 6×10 within the same stack. A liner forced into an unmeasured passage gaps at the offsets, overheats at the narrow points, and can block adjacent openings. We physically measure with calipers and a camera before ordering any material. Call (781) 404-3793 to schedule - estimates are free.
It means both of you are at risk. Third-degree creosote is a hardened, tar-like deposit that can ignite and burn at temperatures exceeding 2,000°F. In a shared flue, that fire or the restricted draft that follows can force combustion gases - including carbon monoxide - into either connected living space. We see this in attached homes and colonial stacks with multiple hearth openings. We map the full flue before cleaning or lining, and we won’t install a liner that doesn’t account for every connected appliance. If you suspect shared flue construction, call (781) 404-3793 - this is not a wait-and-see situation.
Every year before the heating season begins. Lexington’s repeated freeze-thaw cycles cross the 32°F threshold dozens of times each winter, opening mortar joints and flue cracks wider with every cycle. The dense oak and maple canopy adds debris load that compounds the problem. An annual Level-2 camera inspection catches liner damage, mortar failure, and creosote buildup before they become safety hazards. We document every inspection with photos you can see and a plain-English verdict. Call (781) 404-3793 to book - estimates are free.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Lexington and surrounding communities since 1984.