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 Somerville
Chimney liner installation and partial rebuilds in Somerville typically run $1,800-$4,500 depending on the flue count and stack condition, and most jobs are completed in a single visit with our crew. If you own or manage a triple-decker in Winter Hill, East Somerville, or Magoun Square, you’re likely dealing with a century-old brick chimney stack that was never lined for modern appliances. We’ve been answering calls with a live person 24 hours a day for over 42 years, and our Boston office dispatches crews to Somerville daily. Call (781) 905-8338 for a free estimate with camera inspection and photos you can see.
Why Hearthstone Chimney Co. Is Somerville’s Preferred Chimney Liner & Rebuild Company
Somerville’s housing stock is unlike anywhere else in Middlesex County. Roughly 80-90% of residential buildings went up between 1880 and 1930, and the triple-decker dominates entire neighborhoods. These stacks were sized for coal or oil furnaces, not the gas appliances and wood inserts homeowners install today. Most have no original flue liner at all.
We’ve built our reputation here by documenting every inspection. Our Level-2 camera inspection ends with photos you can see and a plain-English verdict. No recommendation for liner work comes without evidence you can hold in your hand. The 90-Day Done Right Promise backs every job in writing - if it’s not right, we come back, no arguing, no paperwork chase.
Our Boston office coordinates scheduling for Somerville, so we’re not driving in from Worcester or the North Shore. Background-checked, uniformed technicians arrive when we say. Most liner and rebuild jobs finish in one visit. No-hassle upfront pricing means the number on the estimate is the number on the invoice.
And we know the local failure pattern. In a triple-decker on Perkins Street in Winter Hill, we found two flues with no liner and dividing mortar so spalled you could see daylight between them. The third-floor tenant smelled exhaust every time the first-floor furnace ran. We installed a DuraFlex stainless liner in the furnace flue and a separate HeatShield-resurfaced liner for the water heater flue. The smell never came back. That’s the kind of problem that only exists in Somerville’s stacked multi-unit housing, and it’s why local experience matters.
Our Chimney Liner & Rebuild Services in Somerville
Stainless Steel Liner Installation
A stainless steel liner is the right fix for most Somerville furnace and boiler flues, especially in triple-deckers where the original clay tile has cracked or was never installed. We use DuraFlex and Olympia Chimney products, sized precisely to your appliance’s BTU output and venting requirements. In Somerville’s unlined 1880-1930 stacks, a properly sized stainless liner restores draft, contains combustion gases, and meets current NFPA 211 standards. Most installations run $2,200-$3,800 for a single flue in a standard-height triple-decker.
Flexible Liner Solutions
Some Somerville chimney stacks have offsets or bends that rigid stainless can’t navigate, particularly in older buildings where settling has shifted the flue path. A flexible liner from DuraFlex or Olympia Chimney threads through these irregular channels without dismantling the stack. We see this often in East Somerville triple-deckers where the chimney was built against a party wall with multiple direction changes. Flexible liner installation typically costs $2,500-$4,200 depending on length and access.
Liner Replacement
When an existing liner has failed - cracked clay tile, corroded aluminum, or a previous install that was never properly sized - replacement is often the only code-compliant option. We extract the damaged material and install a new system with proper insulation and connectors. In Somerville, we frequently replace “liners” that turned out to be nothing more than a flexible vent connector shoved up a few feet of flue, a shortcut that leaves the upper stack exposed. Full liner replacement in a Somerville triple-decker runs $2,800-$4,500.
Partial Chimney Rebuild
Eastern Massachusetts freeze-thaw cycles destroy Somerville chimney crowns and upper courses. Water enters through a cracked crown or missing cap, freezes overnight, and pops mortar joints until the brick face spalls off. A partial rebuild addresses the top 3-6 feet of the stack - new crown, proper overhang, drip edge, and replaced brick where needed. We use professional-grade materials from Copperfield and Famco for crowns and caps. Partial rebuilds in Somerville typically cost $1,800-$3,200.
What happens when you call
- 1
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 Somerville
We don’t use builder-grade substitutes. Our trucks carry DuraFlex and Olympia Chimney stainless and flexible liner systems, HeatShield cerfractory resurfacing materials for flue restoration, and Copperfield and Famco crowns, caps, and flashing components. That means most Somerville jobs don’t wait on parts orders. We measure, cut, and install on-site. When you’re dealing with a heating season emergency in a triple-decker with three tenants calling, that turnaround matters.
Common Chimney Liner & Rebuild Problems We See in Somerville Homes
- Carbon monoxide crossover between triple-decker units. When the mortar wythe separating two or three flues in a shared stack deteriorates from freeze-thaw, exhaust from one unit’s appliance can migrate into an adjacent flue. We’ve found this in Magoun Square, Winter Hill, and East Somerville - it’s a code failure driven entirely by Somerville’s specific rental housing typology.
- Unlined clay-tile flues cracked by Eastern Mass freeze-thaw. The 1880-1930 brick in most Somerville stacks has no liner at all, or original clay tile that has spalled and shifted. Flue gases bleed through the brick into attics, wall cavities, or neighboring units.
- Third-degree creosote in undersized wood-burning flues. Somerville homeowners install pellet stoves or wood inserts in flues designed for coal furnaces. The reduced diameter and cooler flue gas temperatures create a glazed creosote buildup that can’t be brushed out - a chimney fire hazard that requires liner resizing or replacement.
- Crown failure leading to top-course rebuild. A cracked or missing crown lets water saturate the upper brick. November through March freeze-thaw cycles in Somerville pop the mortar until the top course flakes apart. Catch it early and it’s a crown replacement. Wait, and it’s a partial rebuild.
Pricing for Chimney Liner & Rebuild in Somerville, MA
Here’s what we charge for Chimney Liner & Rebuild work in the Somerville market. Every estimate starts with a Level-2 camera inspection - $289, credited toward your job if you proceed.
| Service | Typical Range in Somerville |
|---|---|
| Stainless steel liner (single flue, standard height) | $2,200 - $3,800 |
| Flexible liner with offsets | $2,500 - $4,200 |
| Full liner replacement (extraction + new install) | $2,800 - $4,500 |
| Partial rebuild (top 3-6 feet, new crown) | $1,800 - $3,200 |
| HeatShield flue resurfacing | $1,800 - $2,800 |
| Chimney cap and crown replacement | $800 - $1,600 |
What moves the number: flue height, number of appliances being vented, access (roof pitch, scaffolding needs), and whether we find hidden damage during camera inspection. We show you the photos before any work is approved. No surprises on the bill. Call (781) 905-8338 for an exact quote - estimates are free.
We Also Serve Cities Near Somerville
Our crews work throughout the metro Boston area, and we regularly handle Chimney Liner & Rebuild in Somerville plus neighboring Medford, Belmont, Brookline, and Winchester. The same live-answer phone, same camera inspection, same 90-Day Done Right Promise applies.
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
Yes, almost certainly. In Somerville’s triple-deckers, two or three masonry flues share one brick stack, and when the dividing mortar fails, exhaust from one unit can cross into another flue and backdraft into a neighboring apartment. We diagnose this with a Level-2 camera inspection that shows you the failed wythe in real time. Call (781) 905-8338 - this is not a situation to wait on.
Yes. Modern gas appliances produce acidic condensation that eats away at unlined brick and mortar, and the smaller flue size of your original coal-era stack often causes improper draft. Massachusetts code and NFPA 211 require a properly sized liner for any new appliance installation. We measure your appliance output and specify the right diameter - no guesswork, no oversizing. Call (781) 905-8338 for a camera inspection and exact specification.
Because we show you the evidence before we recommend anything. Our Level-2 inspection produces photos of your flue interior, and we explain what you’re looking at in plain English. If the tile is intact and properly sized for your appliance, we’ll say so. We’ve told Somerville homeowners their stack was fine - and lost a sale - because that’s what the camera showed. No photos, no recommendation. That’s the K.E.Y.S. code: Your home first. Call (781) 905-8338 and see for yourself.
Usually, yes. Each flue in a multi-flue stack is a separate channel, and we can install an independent liner system for your unit alone. In some cases, if the dividing mortar has completely failed, we may need to coordinate with the building owner to address the shared structure - but we always start with camera evidence of exactly what’s happening in your specific flue. Call (781) 905-8338 to schedule.
No. A failed crown lets water into the stack, and Somerville’s freeze-thaw cycles from November through March will keep popping mortar joints until the structural integrity of the upper stack is compromised. We’ve seen crowns that looked “a little rough” turn into partial rebuilds after two winters. The earlier you address it, the less it costs. Camera inspection shows whether the damage has penetrated below the crown line. Call (781) 905-8338 for an estimate - estimates are free.
Ready to see what’s actually going on inside your chimney? Call (781) 905-8338 to speak with a live person 24 hours a day, 7 days a week. We’ll schedule your Level-2 camera inspection, show you photos you can see, and give you a plain-English verdict with no-hassle upfront pricing. The 90-Day Done Right Promise backs every job in writing. Done right - and we stand behind it.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Somerville and local communities for over 42 years.