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.
Fast, Reliable Chimney Liner & Rebuild Across Somerville
Chimney liner installation and rebuild work in Somerville typically runs $1,800-$4,500 for most triple-decker and row-house stacks, with partial rebuilds starting around $2,400 and full stainless liner jobs with crown work landing in the $3,200-$4,500 range. Most Somerville liner and rebuild projects are completed in a single visit after inspection, though shared-flue triple-deckers often need a Level 2 camera evaluation first to trace which unit uses which flue. Call (857) 597-5950 to book a free estimate - a live person answers, 24 hours a day.
We’ve been working on Somerville chimneys for decades, from the brick triple-deckers lining Highland Avenue to the attached rows near Davis Square and the converted condos around Union Square. Our crews dispatch from the Boston office and carry the parts and materials to handle most liner and rebuild jobs without a return trip. We know the local housing stock because we’ve inspected and repaired it - original lime-mortar stacks from the 1880s through the 1920s, most with multiple fuel conversions behind them and flue configurations that would confuse a tech trained on single-family suburbs.
Why Hearthstone Chimney Co. Is Somerville’s Preferred Chimney Liner & Rebuild Company
Somerville homeowners call us because we document what we find and explain it in plain English before any work starts. Our Level 2 camera inspections end with photos you can see on the screen and a written verdict - no guesswork, no pressure. The 90-Day Done Right Promise backs every liner and rebuild job in writing: if it’s not right, we come back and make it right, no paperwork and no arguing.
Our technicians are background-checked, uniformed, and trained specifically on the shared-flue, multi-unit chimneys that dominate Somerville’s housing stock. Most liner and rebuild jobs are completed in a single visit with no-hassle upfront pricing - the number on the estimate is the number on the invoice. Calls are answered by a live person, 24/7, not a voicemail queue. That’s been our way for over 42 years.
We coordinate dispatch and scheduling from our Boston office, but our crews serve Somerville locally and carry the inventory to avoid delays. We’ve rebuilt crowns on Broadway, installed stainless liners in Winter Hill triple-deckers, and sorted cross-vented flues in Teele Square condos. The work is different here, and we know the difference.
Our Chimney Liner & Rebuild Services in Somerville
Stainless Steel Liner Installation
A stainless steel liner is the right solution for most Somerville gas and oil appliances venting into original brick flues that were never lined or where clay tile has cracked. We use DuraFlex and Olympia Chimney products - professional-grade, not builder-grade substitutes - sized to your appliance and installed with proper insulation to meet Massachusetts code. In Somerville’s triple-deckers, this often means tracing which of three units ties into which flue before any liner goes in, a step chains skip and homeowners pay for later.
A typical stainless liner installation in Somerville runs $2,800-$4,200, including the Level 2 inspection, camera documentation, and a new cap. If the flue wall is too deteriorated for a liner to seal properly, we’ll show you the camera footage and explain what a partial rebuild adds before you commit.

Flexible Liner Installation
Flexible liners work in Somerville’s older chimneys with offsets or bends that rigid pipe can’t navigate, but they’re not a fix-all. The soft, spalled mortar joints we see in pre-WWI brick stacks - especially after a century of Boston-area freeze-thaw - mean a flexible liner can’t seal against a crumbling flue wall. It’ll fail. We run the camera first. If the wall is sound, a flexible liner from DuraFlex or HeatShield installs cleanly and costs $2,400-$3,600 in most Somerville applications. If the wall is shot, we quote the partial rebuild with it. No surprises on the bill.

Liner Replacement
Existing liners fail from corrosion, improper sizing, or water damage from a cracked crown. In Somerville, we replace a lot of liners that were installed without addressing the crown or cap first - the new liner rusts through in five years instead of lasting twenty. Our replacement jobs include a full crown and cap evaluation, and we won’t install a new liner on a stack that’s going to flood it with water. Replacement with full inspection and documentation runs $2,600-$4,000 depending on flue height and access.

Partial Chimney Rebuild
Partial rebuilds are common in Somerville and often necessary before any liner work can succeed. We’re talking about the top few feet of brick, the crown, and sometimes the interior flue wall - not tearing down the whole stack. The freeze-thaw cycle here destroys lime mortar joints; spalled brick and eroded wythes can’t hold a liner. A partial rebuild on a typical Somerville triple-decker runs $2,400-$3,800 and adds a day to the job. We show you the camera evidence, explain exactly what’s rebuilt and what stays, and quote it upfront. Done right, and we stand behind it.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Somerville
We stock and install professional-grade materials from HeatShield, Gelco, Olympia Chimney, and Famco - brands that hold up in Somerville’s harsh freeze-thaw environment, not substitutes that save us money and cost you a second job in eight years. Our trucks carry the common diameters and fittings for DuraFlex stainless and HeatShield cerfractory flue repair systems, so most Somerville liner and rebuild jobs don’t wait on parts. When a Union Square condo association needs three liners sorted across a shared stack, or a Winter Hill triple-decker needs a crown rebuild before the liner goes in, we have what we need on the truck.
Common Chimney Liner & Rebuild Problems We See in Somerville Homes
- Abandoned unlined flues from fuel conversions. Somerville’s condo-converted triple-deckers routinely leave oil-to-gas conversion flues unlined and uncapped inside a single shared chimney. These abandoned flues draw moisture and combustion gases into neighboring units, creating carbon monoxide hazards that are structurally baked into this housing type.
- Cross-vented appliances across condo units. In triple-deckers recently split into condos, it’s common to find that a middle-floor gas insert was tied into a flue already serving the top-floor furnace - a dangerous configuration our crew encounters regularly in Somerville that would be unusual in single-family markets.
- Spalled mortar from century-old freeze-thaw damage. The Boston-area freeze-thaw cycle, with temperatures oscillating around 32°F repeatedly each winter, is particularly destructive to the soft, aged lime mortar in Somerville’s pre-WWI brick stacks. Flexible liners can’t seal against these crumbling walls without a partial rebuild first.
- Premature stainless liner failure from neglected crowns. Aging chimney crowns and missing caps let water into soft lime-mortar joints year-round. Stainless liners that should last decades rust through prematurely when the crown isn’t rebuilt as part of the job - we see this constantly on Somerville stacks where a previous installer skipped the crown to cut the quote.
Pricing for Chimney Liner & Rebuild in Somerville, MA
Here’s what liner and rebuild work costs in Somerville’s market, based on the triple-deckers and row houses we service:
| Service | Typical Range in Somerville |
|---|---|
| Stainless steel liner (single flue, standard height) | $2,800 - $4,200 |
| Flexible liner (offsets/bends, sound flue wall) | $2,400 - $3,600 |
| Liner replacement with crown evaluation | $2,600 - $4,000 |
| Partial rebuild (top section, crown, flue wall) | $2,400 - $3,800 |
| Full chimney rebuild (rare in Somerville) | $6,500 - $9,500 |
| Level 2 camera inspection with photo report | $289 - $389 |
Shared-flue triple-deckers often need additional tracing and documentation time - typically $150-$300 per additional flue evaluated. Every estimate is free, in writing, and the price we quote is the price on the invoice. We also offer $50 off any repair over $250, a free second opinion on any written estimate, and a permanent 5% senior and veteran discount.
Call (857) 597-5950 for an exact quote - estimates are free.
We Also Serve Cities Near Somerville
Our crews work across the metro area, and we regularly handle liner and rebuild jobs in Somerville as well as Boston, Everett, Chelsea, and Revere. If you’re in a neighboring city and your chimney shares the same triple-decker DNA, we know the work. Our Chimney Liner & Rebuild team coordinates scheduling from the Boston office to keep response times short across the service area.
Serving Somerville, MA - Our Local Coverage Area
We’re based in the Somerville 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 Somerville
You probably don’t, and neither do your neighbors. We run a Level 2 camera inspection and trace each flue from the appliance to the top of the stack, then document which unit ties to which flue with photos you can see. In Somerville’s condo-converted triple-deckers, this is standard - not an upsell, just the necessary first step before any liner or rebuild work can be code-compliant. Call (857) 597-5950 to schedule - estimates are free.
We install what’s needed, and we prove why with camera footage. Stainless liners are the right fix for many Somerville gas and oil appliances, but if your flue wall is too deteriorated, a liner alone will fail - we quote the partial rebuild first and show you why. If a HeatShield cerfractory resurfacing or a flexible liner is the better match for your stack and appliance, we’ll say so. Nothing is recommended without evidence you can see. Call (857) 597-5950 for an exact quote - estimates are free.
A partial rebuild addresses the top few feet of brick, the crown, and sometimes the interior flue wall - the parts that take the most weather and fail first on Somerville’s 100-year-old stacks. A full rebuild tears down and reconstructs the entire chimney from the roofline up, which is rare here unless there’s structural damage or a documented fire. Most Somerville triple-deckers need partial rebuilds, not full ones, and we quote accordingly with no pressure to do more than necessary. Call (857) 597-5950 for an exact quote - estimates are free.
Yes, but only after we’ve identified which flue is yours and confirmed that your work won’t compromise their system. In Somerville’s shared stacks, we often find that what looks like separate flues are interconnected or that an abandoned flue is drawing gases across units. We document the whole chimney, share findings with all affected owners when needed, and perform code-compliant work on your flue alone. Call (857) 597-5950 for an exact quote - estimates are free.
Every year before burning season. The Boston-area freeze-thaw cycle, with repeated oscillation around 32°F, accelerates mortar joint erosion in Somerville’s soft, pre-WWI lime mortar. Annual Level 2 inspection catches spalling, crown cracks, and liner deterioration before they become carbon monoxide hazards or require costlier rebuilds. For triple-deckers with shared flues and condo conversions, yearly inspection isn’t cautious - it’s necessary. Call (857) 597-5950 to schedule - estimates are free.
Ready to get your Somerville chimney sorted? Call (857) 597-5950 now. A live person will answer, 24 hours a day, and we’ll get you scheduled for a free estimate with camera inspection and a written, plain-English verdict. The 90-Day Done Right Promise covers every liner and rebuild job we do - in writing, no arguing. That’s the Hearthstone way.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Somerville and local communities for over 42 years.





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