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.
Chimney Cleaning in Cambridge, MA
Chimney cap and crown work in Cambridge typically runs $450-$1,200 for repairs and $650-$1,800 for replacement, depending on whether your triple-decker stack needs a single-flue cap or a multi-flue solution spanning multiple condo units. We’re Level Two Chimney Co., and we dispatch crews to Cambridge from our Boston office to inspect, document, and quote every job in writing before any work starts. Call (857) 309-1908 for a free estimate.
Why Cambridge Homes Are Different
Cambridge’s built environment is dominated by brick triple-deckers and attached rowhouses thrown up between 1880 and 1930, most still running original masonry chimneys that were never designed for modern gas exhaust. The riverside humidity along the Charles, combined with hard freeze-thaw cycles from nor’easters, chews through mortar joints and crowns faster than inland suburbs see.
Condo conversions in Cambridgeport, Mid-Cambridge, and Agassiz split ownership of single chimney stacks across two or three separately deeded units. That means one flue might serve a gas insert in Unit 1, another might be an abandoned coal flue, and a third could have a partial Metalbestos liner from the oil era - all in one stack, with no clear association maintaining it. We see this layered history on nearly every Cambridge call, and it changes how we scope, price, and document the work.
Our Main Cambridge Services
Most Cambridge calls fall into three categories. Here’s what each involves locally.
Chimney Cleaning & Sweep in Cambridge
We clean and inspect chimney systems in Cambridge’s triple-deckers, rowhouses, and the occasional single-family in West Cambridge. Every sweep includes an NFPA 211 Level 2 camera inspection down the flue, a documented photo record, and a written condition report. We handle shared-stack coordination when multiple units are involved. Chimney Cleaning & Sweep in Cambridge.

Chimney Repair in Cambridge
Cambridge repairs center on spalling brick, failed mortar joints, and crown cracks accelerated by Charles River humidity and freeze-thaw damage. We quote repointing, crown rebuilding, and brick replacement in writing before starting, with photos to show exactly what failed and why. Chimney Repair in Cambridge.

Fireplace Services in Cambridge
We service gas inserts, wood-burning fireplaces, and hearth systems in Cambridge’s older housing stock, including damper repair, firebox refractory work, and gas-log troubleshooting. Every visit includes the standard camera inspection and written documentation. Fireplace Services in Cambridge.

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.
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AfterChimney Cap & Crown in Cambridge

Cambridge’s triple-decker chimneys take a beating. Heavy wet-leaf loads and ice from nor’easters pile onto caps that were often never properly sized for multi-flue stacks, while freeze-thaw cycling cracks crowns that were never sealed correctly after the oil-to-gas conversion decades ago. A failed cap or crown in Cambridge isn’t just a water issue - it’s a carbon monoxide risk in tightly packed units with limited ventilation. Chimney Cap & Crown work is what keeps that stack closed to weather and open for safe exhaust.
Cap Installation
Signs you need it
Water staining on the chimney breast, rust flakes in the firebox, or visible gaps between the cap and flue tile mean your stack is open to Cambridge’s driving nor’easter rain.
What it costs in Cambridge
Single-flue cap installation in Cambridge typically runs $650-$950; multi-flue caps spanning triple-decker stacks run $1,200-$1,800 depending on access and condo coordination.
How we do it
We measure each flue precisely, fabricate or source the cap from Copperfield or Famco through our Haven buying network, and install with stainless steel fasteners and a written warranty under Clause 1 of the Haven Standard.
Crown Repair
Signs you need it
Hairline cracks spreading across the crown surface, pieces of concrete missing at the edges, or water pooling on top after rain are clear indicators of freeze-thaw damage.
What it costs in Cambridge
Crown repair in Cambridge ranges from $450-$850 for crack sealing and resurfacing; full crown replacement runs $1,100-$1,800 when the concrete is too far gone.
How we do it
We grind out cracked material, apply a bonding layer, and pour new crown mix sloped to shed water, with photo documentation at each stage under Haven Standard Clause 4.
What Chimney Cap & Crown Costs in Cambridge
| Item | Typical range in Cambridge |
|---|---|
| Single-flue cap installation | $650 - $950 |
| Multi-flue cap installation | $1,200 - $1,800 |
| Crown crack repair | $450 - $850 |
| Full crown replacement | $1,100 - $1,800 |
Do I need a multi-flue cap if my triple-decker has separate flues?
Usually yes. Cambridge’s condo-converted triple-deckers often have two or three flues in one stack, and individual caps leave gaps where water and debris enter. A properly sized multi-flue cap covers the entire crown, protecting all units. Call (857) 309-1908 and we’ll measure your stack.
How long does a crown repair last in Cambridge’s climate?
A properly poured crown with correct slope and sealant typically lasts 15-20 years even with Cambridge’s freeze-throw cycling; our 365-Day Done Right Promise covers the first year regardless. Call (857) 309-1908 for a free inspection.
Chimney Liner & Rebuild in Cambridge

Cambridge’s unlined or partially lined masonry chimneys were built for coal and oil, not the cool, moist exhaust of modern gas appliances. In Cambridgeport and Mid-Cambridge, we regularly find terracotta flues cracked by decades of thermal shock, or partial Metalbestos liners terminating mid-shaft - configurations that fail Massachusetts 527 CMR and create real CO hazards in tightly packed triple-deckers. Chimney Liner & Rebuild work starts with a camera scan to see exactly what you’ve got.
Stainless Steel Liner
Signs you need it
Flaking terracotta in the cleanout, visible cracks in the flue tile on camera inspection, or a gas appliance venting into an unlined masonry shaft all indicate liner failure.
What it costs in Cambridge
Stainless steel liner installation in Cambridge typically runs $2,800-$4,500 for a standard single-flue system, with multi-flue condo stacks running higher due to access and coordination.
How we do it
We run a camera to map the full flue condition, then install a DuraFlex or Olympia Chimney stainless liner with proper insulation and connections, documenting every foot with photos under Haven Standard Clause 4.
Partial Rebuild
Signs you need it
Spalled brick above the roofline, a leaning stack, or mortar so degraded you can pick it out with a key means the structural shell has failed and needs rebuilding.
What it costs in Cambridge
Partial rebuilds in Cambridge range from $3,500-$6,500 depending on height, scaffolding needs, and whether the work spans multiple condo units.
How we do it
We dismantle to sound masonry, rebuild with matching brick and proper flue sizing, and provide a written scope, written price, and written warranty before any demolition begins.
What Chimney Liner & Rebuild Costs in Cambridge
| Item | Typical range in Cambridge |
|---|---|
| Stainless steel liner (single flue) | $2,800 - $4,500 |
| Flexible liner installation | $2,200 - $3,800 |
| Partial chimney rebuild | $3,500 - $6,500 |
| Full chimney rebuild | $8,000 - $15,000 |
Can I install a gas insert without lining my Cambridge chimney?
No. Massachusetts 527 CMR requires a properly sized liner for all gas appliances, and Cambridge inspectors enforce this strictly. An unlined masonry flue will fail inspection and creates documented CO risk. Call (857) 309-1908 for a camera inspection and written quote.
Who pays for liner work in a condo-converted triple-decker?
Responsibility varies by association bylaws; we provide the documented photo record and written scope so Cambridge condo boards and owners can negotiate from facts, not guesses. Call (857) 309-1908 and we’ll inspect the full stack.
Brands We Service in Cambridge
We source caps, liners, and repair materials through the Haven buying network from DuraFlex, HeatShield, Gelco, Olympia Chimney, Famco, and Copperfield - brands chosen to keep customer prices honest with factory-direct purchasing power. Most standard caps and liner components are stocked for next-day installation in Cambridge. our brands.
Pricing for Chimney Cleaning in Cambridge, MA

| Service | Typical range in Cambridge |
|---|---|
| Chimney sweep & Level 2 inspection | $250 - $375 |
| Single-flue cap installation | $650 - $950 |
| Multi-flue cap installation | $1,200 - $1,800 |
| Crown crack repair | $450 - $850 |
| Full crown replacement | $1,100 - $1,800 |
| Stainless steel liner (single flue) | $2,800 - $4,500 |
| Flexible liner installation | $2,200 - $3,800 |
| Partial chimney rebuild | $3,500 - $6,500 |
| Full chimney rebuild | $8,000 - $15,000 |
Prices push higher in Cambridge when condo coordination requires multiple owner approvals, when scaffolding is needed for tight triple-decker setbacks, or when hidden flue damage extends beyond what the initial camera scan revealed. Every job gets a written price before work starts - no exceptions, no surprises.
Neighborhoods We Serve in Cambridge
We work across Cambridge’s full housing stock, from dense triple-decker corridors to the occasional freestanding Victorian. Crews dispatch from our Boston office and typically arrive within the scheduled window across all neighborhoods.
- Cambridgeport
- Mid-Cambridge
- Agassiz
- Harvard Square / Riverside
- West Cambridge
Service Area - Cities Near Cambridge

Level Two Chimney Co. serves Cambridge and surrounding communities from our Boston coordination office. We regularly dispatch to Boston, MA, Newton, MA, Everett, MA, and Winchester, MA for chimney cleaning, repair, and liner work with the same written-price, documented-record standard.
Serving Cambridge, MA - Our Local Coverage Area
We’re based in the Cambridge 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 About Chimney Cleaning in Cambridge

Most chimney repairs and liner installations require a Cambridge building permit; we pull permits as part of our standard scope and include the documentation in your job packet. Call (857) 309-1908 and we’ll confirm what’s needed for your specific address.
We inspect the full stack and provide a documented photo record that all owners can review; written quotes are broken out by flue so each unit knows its share. Call (857) 309-1908 to book, and we’ll coordinate access with your building.
We schedule Cambridge appointments within a few days of your call, with dispatch coordinated from our Boston office; emergency CO or blockage calls get priority same-day response. Call (857) (857) 309-1908 to check current availability.
What happens when you call
- 1A real person answersNo phone trees - talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Cambridge Customers Say
"Cap and crown replaced after water was getting in. Price was quoted in writing, and they showed me the mortar failure first."
- Neil O."We were buying the house and needed a real inspection. The report had photographs, the standard it was done to, and a clear repair figure. The seller paid for the repair."
- Lorna D."Clean, careful, put down sheeting, and the fireplace works properly for the first time since we moved in."
- Yvette S.




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