Chimney Liner & Rebuild in Somerville - You See the Footage Before You Get a Price

Fast, Reliable Chimney Liner & Rebuild Across Somerville

Chimney liner installation and chimney rebuilds in Somerville typically run $2,800-$8,500 depending on whether we’re dropping a flexible stainless liner into a single flue or rebuilding a shared triple-decker stack from the roofline up. Most Somerville jobs are completed in one visit once materials are staged, and we dispatch crews daily from our Boston office to zip codes 02143, 02144, and 02145. Call (857) 392-4709 - a live person answers, 24 hours a day.

Call (857) 392-4709

We’ve been working on Somerville chimneys since before the Assembly Square redevelopment, back when Davis Square still had the original bookstore block. We know the difference between a Winter Hill triple-decker built in 1905 and a brick row house off Highland Avenue from 1880, and we know that their chimneys fail in different ways. That matters because the wrong fix on a shared stack doesn’t just waste your money - it can put your neighbor at risk.

Why Hearthstone Chimney Co. Is Somerville’s Preferred Chimney Liner & Rebuild Company

Somerville homeowners don’t call us for flashy trucks or discount coupons. They call because their last contractor recommended a $6,000 rebuild based on a flashlight peek from the roof, and they want a second opinion backed by photos they can actually see. We’ve earned that trust across Somerville’s neighborhoods by documenting every inspection with Level 2 camera work and delivering a plain-English verdict - no jargon, no pressure.

Our Boston office coordinates scheduling for Somerville calls, and we typically book inspections within a week during shoulder season, two weeks during peak fall demand. Crews arrive uniformed, background-checked, and equipped to complete most liner drops and partial rebuilds in a single day. The 90-Day Done Right Promise applies to every job: in writing, no arguing, no paperwork chase. If it’s not right, we come back.

Russell Haines built this company on the K.E.Y.S. code - Krafted right, Every time, Your home first, Standing behind it - and that hasn’t changed in over 42 years. We’re not planning to sell to a private equity roll-up next quarter. We’ll be here when the liner we installed needs its first inspection.

Our Chimney Liner & Rebuild Services in Somerville

Stainless Steel Liner Installation

A stainless steel liner is the standard correction for Somerville’s aging triple-decker flues. We size the liner to the appliance, not the original coal-era opening, using DuraFlex or Olympia Chimney products rated for the actual BTU output. In a typical Winter Hill or Teele Square job, we’re dropping a 6-inch flexible liner down a 12-by-12-inch terra cotta flue that was designed for a coal furnace drafting at 1,200 degrees. The mismatch is obvious once you see it on camera: condensation stains, spalled mortar, and creosote glazing where the gas appliance never gets the flue hot enough to dry it out. A properly sized stainless liner fixes the draft, protects the masonry, and meets Massachusetts code for solid-fuel and gas venting.

Flexible Liner Systems

Flexible liners are our go-to for Somerville’s offset chimneys - the ones with a dogleg bend where the stack shifts to miss a stairwell or structural beam. Rigid pipe won’t make those turns without breaking the flue wall. We use DuraFlex Pro or HeatShield-compatible flex systems that navigate offsets while maintaining full draft capacity. Most Somerville triple-deckers have at least one offset flue, often the original coal flue that was later converted to oil and then gas. Our crew measures the offset angle with a camera-guided borescope before specifying the flex grade, so we’re not guessing from the roof.

Liner Replacement

When a terra cotta liner has collapsed or a previous stainless installation has corroded through (we see cheap builder-grade jobs fail in under ten years), full liner replacement is the only safe option. We extract the failed material, inspect the surrounding masonry for hidden damage, and install a new system sized to current use. In Somerville’s dense housing, this means coordinating roof access with multiple tenants, protecting shared walls from debris, and staging materials on narrow lots where there’s no driveway to park a boom truck. We’ve done enough of these to know the logistics before we quote.

Partial Chimney Rebuild

Not every failing stack needs to come down to the roofline. A partial rebuild targets the crown, the top few courses of brick, and the flue wash - the areas most damaged by Somerville’s freeze-thaw cycles. We see this pattern constantly on east-facing triple-decker stacks between Prospect Hill and Union Square: crown cracks let water in, January’s cold splits the brick face, and by March you’ve got spalling masonry dropping into the flue. A partial rebuild with proper crown flashing and a sealed wash can add twenty years to a stack that looks terminal from the sidewalk.

Full Chimney Rebuild

When the structural integrity of a shared triple-decker stack is compromised - leaning, major mortar loss, or multiple flue collapses - partial repairs become false economy. A full rebuild removes the stack to the roofline (or below, if the breast is damaged), reconstructs with matching brick where possible, and installs separate, properly sized liners for each active flue. We completed a full rebuild on a four-flue stack off Broadway last spring where freeze-thaw damage had opened a gap you could pass a pencil through between the second and third-floor flues. The job took four days, required crane access we staged from the street, and ended with each tenant receiving their own Level 2 report and liner warranty.

Trusted Brands We Service in Somerville

We don’t substitute generic materials to hit a price point. Our Somerville crews stock and install DuraFlex stainless liners, HeatShield cerfractory resurfacing systems for flue walls that need structural repair without full replacement, and Famco termination caps and accessories. These are professional-grade products, not hardware-store shelf stock, and we maintain local inventory so most Somerville jobs aren’t waiting on freight from a Midwest warehouse. When we specify a liner system, we’re matching the brand and grade to your appliance, your flue geometry, and your fuel type - not selling whatever we have in the truck.

Common Chimney Liner & Rebuild Problems We See in Somerville Homes

• Cracked terra cotta allowing CO migration between units. In a shared triple-decker stack, a fractured flue liner in one apartment becomes a pathway for carbon monoxide from a neighbor’s gas water heater or fireplace insert. We’ve traced CO readings across flue separations that looked intact from the roof but were breached mid-stack. Camera inspection is the only way to confirm separation before any cleaning or relining work begins.
• Freeze-thaw destruction of crown and mortar on tall, shaded stacks. Somerville’s triple-deckers rise three and four stories in tight rows where winter sun never reaches the chimney breast. Dozens of freeze-thaw cycles each winter open mortar joints and split brick faces, especially on crowns without proper overhang or sealant. By April, water intrusion has reached the flue interior.
• Oversized coal flues condensing and creosote-glazing on gas appliances. A flue designed for a coal furnace needs 1,200-degree draft to stay dry. Your 80,000-BTU gas insert runs at 300 degrees. The result is constant condensation that dissolves mortar, plus creosote that forms in hard, glazed layers impossible to remove with standard brushing. Without a properly sized liner, the flue wall deteriorates from the inside out.
• Undocumented flue caps creating hidden venting hazards. Previous owners in East Somerville and Winter Hill sometimes capped a flue to stop a leak, then sold the building without noting it in any disclosure. The new tenant lights a gas insert in what they think is a functional flue, and combustion products vent into a dead space or cross into an adjacent unit. We verify every flue’s status with a camera before any appliance is approved for use.

Pricing for Chimney Liner & Rebuild in Somerville, MA

We Also Serve Cities Near Somerville

Our Chimney Liner & Rebuild in Somerville crews also work daily in Cambridge, Medford, Everett, and Chelsea - same dispatch from our Boston office, same live-answer phone, same 90-Day Done Right Promise. If you’re on the border near the McGrath Highway or Mystic Valley Parkway, we’ll confirm your service area when you call.

FAQs - Chimney Liner & Rebuild in Somerville