Chimney Repair in Cambridge, MA
Chimney repair in Cambridge typically costs $450 to $2,800 depending on scope, and most repairs are completed in a single visit. We’re familiar with the triple-deckers along Broadway, the Victorian stacks on Brattle Street, and the converted multi-families around Inman Square. If you’re seeing crumbling mortar, water stains on your ceiling near the chimney, or bricks flaking onto your roof, call our Cambridge team at (844) 803-1545. A live person answers 24 hours a day.
Why Cambridge Homes Are Different
Cambridge sits between the Charles River and Boston Harbor, and that dampness penetrates masonry year-round. Water that wicks into pre-1940 lime-mortar joints expands when it freezes, opening hairline cracks that admit more water in the next thaw. By March, we’ve seen chimney crowns in North Cambridge with mortar joints eroded to a depth of two inches.
The housing stock amplifies the problem. Cambridge’s late-Victorian and Edwardian triple-deckers rely on single brick chimney stacks containing multiple independent flues, sized for coal, adapted for oil, then adapted again for gas. The result is liner-sizing mismatches, abandoned flues open to active ones, and layers of deferred maintenance driven by a high-turnover university rental market.
Chimney Repair in Cambridge
In East Cambridge triple-deckers, we regularly find a single four-flue chimney stack where one flue serves an active gas furnace, one serves a tenant’s wood-burning insert added without a permit, and one or two are capped but not properly sealed - meaning carbon monoxide and smoke pathways can cross between units, a scenario Cambridge’s rental-inspection enforcement increasingly flags during landlord certificate-of-occupancy renewals. Chimney Repair work starts with a Level-2 camera inspection so we document what we’re dealing with before we quote.
Mortar Repointing
The lime-based mortar in Cambridge’s pre-1940 brick chimneys was never meant to withstand decades of salt air, river humidity, and thermal cycling from gas conversions. We grind out failed joints to proper depth and repoint with color-matched, breathable mortar. Spot repointing up to 20 square feet runs $450-$850; full chimney repointing runs $1,800-$3,200. In East Cambridge, we often find the street-facing side of a stack has eroded to powder while the alley side looks fine - the wind and salt off the Charles do uneven damage.
Spalling Brick Repair
Spalling - bricks shedding their faces - is epidemic on Cambridge chimneys where freeze-thaw meets porous brick. We remove damaged units and install matching replacements, or rebuild sections when the structural course has failed. Localized spalling brick repair runs $650-$1,400. On a job near Avon Hill, we replaced forty-seven spalled bricks in a Victorian stack where a failed crown had let water saturate the top three courses for years.
How quickly can you get to my Cambridge home for chimney repair?
We typically schedule Cambridge repairs within 1 to 3 business days. Our technicians are already working in 02140, 02141, and 02142 most days of the week. Call (844) 803-1545 - a live person answers 24/7 - and we’ll give you the next available slot with upfront pricing.
Chimney Cleaning & Sweep in Cambridge
Chimney cleaning and sweeping in Cambridge, MA typically costs $189-$349 for a standard Level 1 sweep with inspection, and most appointments are completed in a single visit. If you’re smelling smoke inside your unit, hearing debris fall down the flue, or simply can’t remember the last time your chimney was looked at, you’re dealing with conditions we see weekly in Cambridge’s older housing stock. Chimney Cleaning & Sweep work here demands technicians who understand historic construction and the specific failure patterns of converted fuel systems.
Level 1 Inspection and Sweep
A Level 1 inspection is the annual baseline for any Cambridge chimney that’s been in continuous use without changes to the appliance or fuel type. We examine the readily accessible portions of your chimney structure, flue, and connections, looking for creosote buildup, obstructions, and basic structural integrity. In Cambridge’s triple-deckers, this often means working from the appliance up, noting signs of cross-flue leakage that the shared stack structure can hide. A Level 1 inspection with sweep runs $189-$249.
Level 2 Camera Inspection
Level 2 is what Cambridge homeowners need when something has changed - a new insert, a switch from oil to gas, a chimney fire, or the purchase of an older home. We run a high-resolution camera the full length of your flue, documenting every crack, gap, and glaze deposit with photos you can see and a plain-English verdict you can understand. We almost always find original terracotta liner tiles cracked from repeated fuel-type transitions and thermal cycling. Level 2 camera inspection with documentation runs $279-$349.
Do you offer emergency chimney cleaning in Cambridge?
Yes. A live person answers our phones 24 hours a day, 7 days a week, and we prioritize true emergencies: chimney fires, suspected carbon monoxide issues, sudden draft failures, and structural damage that could allow water intrusion or animal entry. For Cambridge emergency calls, we aim to have a technician on-site within hours, not days. Call (844) 803-1545 - estimates are free.
Fireplace Services in Cambridge
Our fireplace service in Cambridge typically runs $180-$650 depending on the repair, and our technicians can reach most Cambridge neighborhoods within 45 minutes. We’re familiar with the triple-decker chimneys of East Cambridge and the ornate Victorian hearths along Brattle Street, so we don’t waste time figuring out what we’re looking at. Fireplace Services here require understanding how successive fuel conversions have altered firebox and flue conditions.
Gas Fireplace Service
Standard gas fireplace maintenance typically costs $180-$320, and $340-$650 if the gas valve, pilot assembly, or thermopile needs replacement. Most Cambridge conversions from oil to gas happened in the 1970s and 1980s, and the original gas logs or inserts are now well past their designed service life. We see a lot of rusted burner pans in the damp basements of North Cambridge triple-deckers, where the previous conversion left the firebox exposed to moisture from below.

Wood-Burning Fireplace Repair
Wood-burning fireplace repair runs $220-$480 for firebox patching or damper work, and $450-$1,200 if the smoke chamber needs parging or the flue requires relining. The Victorian homes along Brattle Street and in Avon Hill often have multiple original fireplaces with elaborate decorative flues that were never designed for modern heating loads. Original terracotta liner tiles, cracked from repeated fuel-type transitions and thermal cycling, are the near-universal finding on our Level-2 camera inspections.

Does fireplace service cost more in Cambridge than in nearby cities?
Cambridge pricing is comparable to Somerville and Medford, sometimes slightly higher than Brookline for jobs requiring Cambridge-specific permitting or landlord-tenant coordination. The complexity of multi-flue shared chimneys in Cambridge’s triple-decker housing can add labor time that doesn’t exist in single-family-dominant suburbs. We provide no-hassle upfront pricing before any work begins. Call (844) 803-1545 for an exact quote - estimates are free.

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.
Chimney Cap & Crown in Cambridge
Chimney cap and crown repair in Cambridge typically runs $280-$650 for most jobs, with appointments scheduled within 24-48 hours. We’ve worked on the triple-deckers of East Cambridge, the Victorians along Brattle Street, and the converted apartment buildings of Cambridgeport. Chimney Cap & Crown work here is often the first line of defense against the moisture that destroys Cambridge’s pre-1940 masonry.
Cap Installation and Replacement
Single-flue cap installation runs $320-$580; cap replacement runs $280-$520. In Cambridgeport and East Cambridge, we regularly remove rusted galvanized caps installed in the 1980s that have accelerated flue deterioration by trapping moisture. We replace them with properly vented stainless steel or copper caps that match the stack’s ventilation requirements. For triple-decker stacks with multiple flues, multi-flue caps start around $450.
Crown Repair
Crown repair averages $380-$650 for partial rebuilds using professional-grade crown sealant and mortar formulated for freeze-thaw cycling. Cambridge’s position between the Charles River and Boston Harbor means exposed crowns absorb more moisture than inland locations, and the lime-mortar joints on pre-1940 stacks deteriorate faster here than in drier climates. We see this pattern constantly in North Cambridge triple-deckers and along the Avon Hill corridor. Our repairs include sloping the crown properly to shed water, a detail often skipped by less careful contractors.
Is chimney cap and crown repair more expensive in Cambridge than in nearby towns?
Cambridge pricing runs roughly 10-15% above suburban rates due to denser access constraints, higher parking costs, and the complexity of multi-flue triple-decker stacks. We cap that difference with efficient routing and upfront quotes with no surprises. Call (844) 803-1545 for a free estimate and we’ll give you the exact number.
Chimney Liner & Rebuild in Cambridge
Chimney liner installation and chimney rebuilds in Cambridge typically run $2,800-$8,500 depending on scope, and most projects are inspected, estimated, and scheduled within 48 hours. We’re familiar with the triple-decker chimneys of East Cambridge, the Victorian flue systems near Brattle Street, and the freeze-thaw damage that hits exposed masonry along the Charles River. Chimney Liner & Rebuild work here almost always involves correcting the legacy of successive fuel conversions.
Stainless Steel and Flexible Liner Installation
Stainless steel liners are the right choice for most Cambridge gas and oil conversions, especially in triple-deckers where original terracotta has cracked from decades of thermal cycling. We size and install DuraFlex and Olympia Chimney stainless systems to match your appliance’s BTU output and draft requirement. Most stainless installations run $2,800-$4,200; flexible liners for offset flues run $2,400-$3,800. In East Cambridge’s 02141 zip, where multiple flues share a single stack, proper sizing prevents the backdrafting and carbon monoxide migration that Cambridge’s rental inspection program increasingly flags.
Liner Replacement and Partial Rebuild
Replacement becomes necessary when existing liners have separated, corroded through, or been damaged by chimney fires - something we see more often than you’d expect in Cambridge’s older rental stock. Liner replacement including abandoned flue seal runs $3,200-$5,500. For masonry damage beyond the liner, partial rebuild of crown, shoulder, and upper courses runs $4,500-$7,200. We document every job with photos and a written report, so if a question arises months later, we have a record of what was done and why.
What warranty covers liner and rebuild work in Cambridge?
Every liner and rebuild job is covered by our 90-Day Done Right Promise in writing: if it’s not right, we come back and make it right, no paperwork, no arguing. Manufacturer warranties on DuraFlex and Olympia Chimney materials apply as specified. We also document every job with photos and a written report. Call (844) 803-1545 for a free estimate.
Brands We Service in Cambridge
We stock and install professional-grade materials from HeatShield, Gelco, Olympia Chimney, and Famco - no builder-grade substitutes. Most parts are on our trucks, so Cambridge jobs rarely wait for ordering. See our brands for full specifications.
Pricing for Chimney Cleaning in Cambridge, MA
| Service | Typical range in Cambridge |
|---|---|
| Level 1 inspection + sweep | $189 - $249 |
| Level 2 camera inspection + documentation | $279 - $349 |
| Creosote removal (Stage 1-2) | $220 - $290 |
| Creosote removal (Stage 3, glazed) | $290 - $340 |
| Annual sweep (gas/oil systems) | $189 - $269 |
| Fireplace cleaning (hearth, firebox, damper) | $150 - $220 |
| Spot mortar repointing (up to 20 sq ft) | $450 - $850 |
| Chimney cap installation (stainless steel) | $320 - $580 |
| Crown repair (partial rebuild) | $380 - $650 |
| Stainless steel liner (single flue) | $2,800 - $4,200 |
What moves a job toward the higher end: scaffolding on tall Victorian stacks, extensive flue tile repair beneath the cap, or addressing multiple abandoned flues in a single triple-decker stack. The number on your estimate is the number on your invoice.
Neighborhoods We Serve in Cambridge
We work across Cambridge’s full zip code range - 02138, 02139, 02140, 02141, 02142, 02238, and 02239 - with appointments typically available within 24-48 hours.
- East Cambridge (02141) - Dense triple-decker stock with shared chimney stacks
- Cambridgeport (02139) - Mixed wood-frame and brick construction, high rental turnover
- North Cambridge (02140) - Pre-war triple-deckers with original terracotta liners
- Brattle Street / Avon Hill (02138) - Victorian single-family homes with multiple fireplaces
- Mid-Cambridge / Harvard Square - Converted apartments and academic properties
Service Area - Cities Near Cambridge
Our crews serve Cambridge locally, with dispatch and scheduling coordinated from our Boston office. We also work regularly in Somerville, MA, Brookline, MA, Medford, MA, Boston, MA, and Watertown, MA. If you’re unsure whether your address falls within our service area, call (844) 803-1545 and a live person will confirm.
Serving Cambridge, MA - Our Local Coverage Area
Hearthstone Chimney Co. crews serve Cambridge and the communities around it; dispatch is coordinated from our Boston office. The map shows the Cambridge coverage area; if your address is on it, we can help.
Also serving nearby: Cambridge, MA, Somerville, MA, Brookline, MA, Medford, MA, Boston, MA, Watertown, MA.
FAQs About Chimney Cleaning in Cambridge
Most chimney repairs and liner installations in Cambridge require a permit from the Inspectional Services Department, particularly in multi-unit buildings where certificate-of-occupancy renewals trigger rental inspection enforcement. We handle permit applications as part of our standard process and provide the documentation landlords need for compliance. Call (844) 803-1545 to discuss your specific building.
The NFPA recommends annual inspection for all chimneys, and sweeping when creosote buildup exceeds 1/8 inch. In Cambridge, we advise annual service before October because the damp, cold heating season accelerates masonry deterioration and creosote formation - especially in wood-burning units where wet fuel sits in humid basements. Call (844) 803-1545 to schedule before the fall rush.
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
"The liner was cracked in two places. He walked me through the options honestly, including the one that was cheaper for him and better for me."
- Xavier Freeman"Booked a sweep, and he told me it did not need one yet and to call back next season. Charged me the inspection fee and nothing else."
- Tara Delaney"Good work on the sweep and the cap. The written inspection report took about a week to arrive after I asked for it, which was slower than I would like."
- Brooke Schaefer