Chimney Repair in Lexington - Inspected on Camera, Then Priced in Writing

Fast, Reliable Chimney Repair Across Lexington

Most chimney repairs in Lexington run between $450 and $2,800 depending on what’s actually wrong, and the honest truth is you won’t know the real number until a camera goes up the flue. That’s the part most homeowners skip, and it’s why so many Lexington repair bills surprise people. We serve every neighborhood in Lexington, from the colonials off Massachusetts Avenue to the ranches near Route 2, and we give you a written price before any work begins. Call (830) 251-4560 and we’ll schedule a proper inspection with a camera and a photo report, not a guess from the ground.

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Why Flint Chimney Sweep Is Lexington’s Preferred Chimney Repair Company

We’ve been part of the Garrison Partners family since 2002, and the way we run a job in Lexington is the same every time: a uniformed, background-checked technician arrives, runs a full inspection, and hands you a written price before a single tool comes off the truck. That’s The Garrison Standard, and it applies to every repair we do in this town. Lexington homeowners tell us the same thing after working with other companies: someone quoted low over the phone, then the number moved at the door. Our number doesn’t move.

We know Lexington’s housing stock well. The pre-war colonials near Hancock Street and the mid-century homes off Waltham Street behave differently when water gets into the masonry. We’ve worked on chimneys within sight of the Minute Man statue and on quiet cul-de-sacs near the Arlington line. Dispatch and scheduling for our Lexington work is coordinated from our Boston office, but the techs you see are local, and they know this town.

Every repair carries the 365-Day Done Right Promise, a written guarantee valid for one full year from the service date. If a covered repair fails inside that year, we return at no charge. No argument, no re-inspection fee. That’s the promise, and it’s in writing on every job sheet we leave with a Lexington customer.

Chimney Liner Installation in Lexington

Chimney Liner Installation in Lexington is a job we recommend when the existing flue liner, the inner channel that carries smoke and gases safely out of the house, has cracked, separated, or deteriorated to the point where carbon monoxide can find its way into wall cavities. Many older Lexington homes still have original clay flue tiles, and after decades of freeze-thaw cycles those tiles crack at the seams. Once that happens, brushing the flue won’t fix it. You need a liner decision.

In Lexington, a stainless steel liner installation for a single-flue chimney typically runs $1,800 to $2,800, depending on flue height, access, and whether we need to break out the old clay tiles first. We use DuraFlex and Copperfield liners because both are proven products with clear manufacturer ratings. The written price includes the liner, the labor, and the one-year guarantee. You’ll see it before we start, not after.

When Lexington homeowners need a liner

You need a liner when the camera shows cracked clay tiles, missing mortar between tile sections, or a flue that has shifted. Those are not cleaning problems. They are structural problems that let heat and gas go where they should not. We don’t sell liners on a hunch. The camera footage is yours to see, and the photo report is part of the job.

How the liner installation works

We run a stainless steel liner down the existing flue, insulate where the code requires it, and reconnect the appliance or fireplace properly. The whole job is done from the roof and the firebox, and we protect the interior of your Lexington home with drop cloths and shoe covers. You get the before-and-after camera report so you can see exactly what changed.

Chimney Flashing Repair in Lexington

Chimney Flashing Repair in Lexington is the fix for a chimney that leaks around the roofline, which is the most common source of water staining on ceilings and attic insulation in this town. Flashing is the metal barrier where the chimney meets the roof, and on older Lexington homes it’s often original lead or galvanized steel that has pulled away from the masonry. Once water gets behind it, it rots the roof decking and soaks into the chimney brick, which then spalls when winter freeze-thaw hits.

A flashing repair in Lexington typically runs $450 to $950 for most homes. If the flashing has failed badly enough that the underlying masonry crown also needs work, the combined job can run higher, and that’s something we document clearly in the written estimate. We don’t fold a crown repair into a flashing quote without telling you exactly why and showing you the photo evidence.

What the job involves

We remove the old flashing, inspect the roof decking beneath it, install new step and counter flashing, and seal it with a high-grade polyurethane sealant. The materials are matched to your roof type, whether that’s asphalt shingle, slate, or cedar. On Lexington homes with slate roofs, which are common in the older sections near the Battle Green, we take extra care with the counter flashing because slate is unforgiving if you cut it wrong.

Signs your Lexington flashing is failing

Water stains on the ceiling near the chimney, damp insulation in the attic, or efflorescence, the white mineral staining you see on exterior brick, are all flashing failure signs. By the time you see the stain inside, the leak has been active for a while. That’s why we recommend a camera inspection of the flashing and crown whenever a Lexington homeowner reports any of these.

Trusted Brands We Service in Lexington

We stock parts for the brands Lexington homeowners actually have, and we install products from DuraFlex, Copperfield, Famco, and HeatShield. These are the names you’ll find in professional chimney supply catalogs, not big-box discount racks. Because our techs carry common flashing components, caps, and liner connectors on the truck, a repair in Lexington doesn’t stall waiting on a part shipped from Ohio. If we need something specific for your chimney, we source it from our distributors and schedule the return visit within a week, not a month. We also service and repair existing HeatShield systems, which some Lexington homes have from earlier liner repair work.

Common Chimney Repair Problems We See in Lexington Homes

• Spalling brick from freeze-thaw cycles. Lexington winters are hard on old brick. Water gets into the mortar joints, freezes, expands, and pops the brick face off. Left alone, the chimney loses structural integrity and becomes a falling-hazard during storms.
• Cracked clay flue tiles in pre-war homes. The colonials and four-squares built before 1950 often have original clay liners. Tile seams crack over decades of heat cycling, and brushing the flue won’t seal them. A camera inspection shows the damage plainly.
• Animal blockages on wooded lots. Lexington’s larger lots and mature trees mean squirrels, raccoons, and birds get into chimneys. A missing or damaged cap lets them in, and the nest blocks the flue. Poor draft and a smell in the house are the usual complaints.
• Crown and flashing leaks that masquerade as flue problems. Water staining near the fireplace often gets blamed on the flue. In Lexington’s older masonry chimneys, the real leak is frequently the crown or flashing. We verify with a camera before any repair is recommended.

Pricing for Chimney Repair in Lexington, MA

We Also Serve Cities Near Lexington

Our Chimney Repair crews work across the towns bordering Lexington, including Woburn, Winchester, Burlington, and Arlington. If you’re on the Lexington line or in one of those neighboring communities, the same written pricing, camera inspection, and one-year guarantee apply. You can learn more about what we do across the region on our Chimney Repair in Lexington page.

FAQs About Chimney Repair in Lexington