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.
Before
After
Before
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Before
AfterChimney Cleaning in Cambridge, MA
Chimney cap and crown work in Cambridge typically runs $850-$2,400 depending on whether we’re sealing a cracked crown or installing a multi-flue cap over a triple-decker stack. Most Cambridge calls start the same way: water in the firebox, white efflorescence blooming on brick, or a cap that’s blown off during a Charles River gale. We’re Level Two Chimney Co., and our crews work Cambridge from the Boston office with background-checked, uniformed technicians who carry license numbers and send a text when they’re en route. Call (781) 649-9326 for a written price before anyone starts.
Why Cambridge Homes Are Different
Cambridge’s triple-decker housing stock dominates what we find on roofs from Cambridgeport to East Cambridge. These three-unit wood-frame buildings went up between 1890 and 1920, and they share a single brick chimney stack with multiple flues serving all three floors. Most were converted from coal or wood decades ago, so the original oversized flues are commonly unlined for modern gas or oil appliances. That mismatch creates chronic draft failure, condensation-driven mortar decay, and creosote pockets you don’t see in neighboring suburbs at this density.
The absentee-landlord market driven by Harvard and MIT means chimneys often go years without service. Tenant turnover resets institutional memory of when the last cleaning happened. Add Cambridge’s five-to-six-month heating season and freeze-thaw cycling that crosses 32°F dozens of times each winter, and you’ve got spalling mortar on century-old brick. Proximity to the Charles River wicks persistent ambient moisture into aging brick, accelerating cap and crown deterioration beyond what inland Massachusetts cities see.
Then there’s the wildlife issue. Triple-decker chimneys frequently have one active gas-appliance flue alongside one or two abandoned, open flues, and those abandoned flues are prime nesting habitat for chimney swifts. These migratory birds are federally protected under the Migratory Bird Treaty Act from roughly May through October. Active nests cannot legally be disturbed, so technicians who don’t identify swift occupation before scheduling risk a federal violation and a forced mid-job stoppage. This constraint almost never comes up in newer suburban markets.
Our Main Cambridge Services
Cambridge homeowners call us most often for chimney cleaning and repair, plus fireplace services for the city’s many working hearths.
Chimney Cleaning & Sweep in Cambridge
We clean and inspect chimneys across Cambridge’s triple-deckers, rowhouses, and single-families, using NFPA 211 Level 2 camera-scan documentation on every visit. Our technicians are trained to spot unlined flues, abandoned flues with swift occupancy, and the Class III creosote that builds up during Cambridge’s extended heating season. Chimney Cleaning & Sweep in Cambridge
Chimney Repair in Cambridge
Cambridge’s freeze-thaw cycles and river moisture destroy mortar joints, crowns, and caps faster than inland markets. We repair spalling brick, deteriorated crowns, and flashing failures with materials from Gelco and Olympia Chimney, procured through Haven’s buying network. Every repair starts with a camera inspection and ends with a documented photo record. Chimney Repair in Cambridge
Fireplace Services in Cambridge
From Victorian hearths in Harvard Square to updated inserts in Porter Square condos, we service gas and wood-burning fireplaces with the same inspection standard: camera down the flue, written price before work, photo record after. We handle damper repair, firebox refractory work, and gas log installation. 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.
Before
AfterChimney Cap & Crown in Cambridge
Cambridge’s century-old triple-decker chimneys shed caps and crowns at a rate we don’t see in newer construction. The original mortar crowns were never designed to survive six decades of Charles River moisture and annual freeze-thaw cycling, and the flat or gently sloped caps common on multi-flue stacks trap water rather than shed it. We install and repair caps and crowns across Cambridge with materials from Gelco and Famco, and every job includes a documented photo record under Chimney Cap & Crown Haven Standard Clause 4.
Crown Repair
Signs you need it
Hairline cracks in the mortar crown that widen after winter, or water pooling on the crown surface instead of running off.
What it costs in Cambridge
Crown repair in Cambridge typically runs $850-$1,400 for crack sealing and resurfacing, while full crown rebuilds range $1,800-$2,800.
How we do it
We grind out cracked mortar to sound substrate, apply a bonding agent, and pour new high-strength crown mix sloped 1/4 inch per foot to shed water, with a documented photo record at each stage.
Multi-Flue Cap
Signs you need it
Your triple-decker’s single cap is missing, rusted through, or was never sized to cover all active flues plus the abandoned ones.
What it costs in Cambridge
Multi-flue cap installation in Cambridge ranges $1,200-$2,400 depending on stack dimensions and whether we need to build up the flue shoulders for proper fit.
How we do it
We measure all flue openings and abandoned flues, fabricate a stainless cap with screened sides for active flues and solid covers for abandoned ones, and anchor with masonry screws into a new bed of sealant.
What Chimney Cap & Crown Costs in Cambridge
| Item | Typical range in Cambridge |
|---|---|
| Crown crack repair | $850-$1,400 |
| Crown rebuild | $1,800-$2,800 |
| Multi-flue cap installation | $1,200-$2,400 |
How long does a crown repair last in Cambridge?
A properly sloped crown rebuild lasts 15-25 years in Cambridge, though river moisture and freeze-thaw cycling on unprotected brick can shorten that if the cap is also failing. We inspect crown condition during every sweep and note deterioration in your documented record.
Can you install a cap during swift nesting season?
We can install caps on active flues year-round, but if our camera inspection reveals chimney swift occupancy in an abandoned flue, we must delay work on that flue until the nest is vacant, typically after October, to comply with federal law.
Chimney Liner & Rebuild in Cambridge
Cambridge’s triple-deckers were built with oversized flues meant for coal, and most were never lined when converted to gas or oil. Those unlined brick flues leak combustion gases between floors, collect condensation that rots mortar, and can’t contain a chimney fire. We install stainless and flexible liners across Cambridge with materials from DuraFlex and Olympia Chimney, and we rebuild partial or full stacks where the brick itself has failed. Every liner job includes a camera inspection, written scope, and documented photo record under Chimney Liner & Rebuild Haven Standard Clause 4.
Stainless Steel Liner
Signs you need it
Your gas or oil appliance vents into an unlined brick flue, or your existing liner is corroded, perforated, or pulling away from the top seal.
What it costs in Cambridge
Stainless steel liner installation in Cambridge ranges $2,800-$4,500 for a single-flue system, with multi-flue triple-decker jobs at the higher end.
How we do it
We camera-scan the flue, measure exact length and diameter, drop a corrugated stainless liner with insulation wrap, and seal the top with a plate and collar rated for your appliance type.
Partial Rebuild
Signs you need it
The upper courses of your chimney are spalling, the crown has collapsed into the flue, or the stack leans more than 1/2 inch per foot.
What it costs in Cambridge
Partial rebuilds in Cambridge typically run $3,500-$6,000 depending on height and whether we need to rebuild multiple flues in a triple-decker stack.
How we do it
We dismantle to sound brick, salvage original materials where possible, lay new brick with type-N mortar matched to existing, and install a poured crown sloped for drainage before capping.
What Chimney Liner & Rebuild Costs in Cambridge
| Item | Typical range in Cambridge |
|---|---|
| Stainless steel liner | $2,800-$4,500 |
| Flexible liner | $2,200-$3,800 |
| Partial rebuild | $3,500-$6,000 |
Do all Cambridge triple-deckers need liners?
Most do. The original coal flues are too large for modern gas appliances, causing condensation and draft failure. We camera-inspect to confirm; if the flue is sound and properly sized, we’ll document that and recommend maintenance only.
Can a liner wait if the chimney seems fine?
Carbon monoxide and combustion gas leakage between floors in a triple-decker don’t produce visible symptoms until they’re dangerous. We don’t recommend waiting without a camera inspection to confirm flue integrity. Call (781) 649-9326 for a free estimate.
Brands We Service in Cambridge
We stock caps, liners, and repair materials from Gelco, Olympia Chimney, and Famco through Haven’s buying network, with most common sizes available for Cambridge jobs without extended ordering delays. See our brands for the full list.
Pricing for Chimney Cleaning in Cambridge, MA
| Service | Typical range in Cambridge |
|---|---|
| Chimney sweep & Level 2 inspection | $280-$380 |
| Crown crack repair | $850-$1,400 |
| Crown rebuild | $1,800-$2,800 |
| Multi-flue cap installation | $1,200-$2,400 |
| Stainless steel liner | $2,800-$4,500 |
| Flexible liner | $2,200-$3,800 |
| Partial rebuild | $3,500-$6,000 |
| Full chimney rebuild | $8,000-$15,000 |
Triple-decker access constraints and the need to coordinate with multiple tenants can push prices higher in Cambridge than single-family jobs. We deliver a written price, written scope, and written warranty before any work starts, with no exceptions.
Neighborhoods We Serve in Cambridge
Our crews work across Cambridge with dispatch coordinated from the Boston office. Typical scheduling runs 3-5 business days during peak pre-winter season, with camera inspections and sweeps available year-round where swift occupancy doesn’t delay access.
- Cambridgeport
- East Cambridge
- Harvard Square
- Porter Square
- Mid-Cambridge
Service Area - Cities Near Cambridge
We serve Cambridge homeowners and landlords directly, with nearby coverage in Medford, MA, Boston, MA, Newton, MA, and Everett, MA. Scheduling and dispatch are coordinated from our Boston office for the full metro area.
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; sweeps and inspections typically don’t. We handle permit applications as part of our scope for any job that requires one, and we note permit status in your written price.
We coordinate directly with property owners or managers and notify all tenants by text 24 hours before arrival. Our technician carries license information and sends a second text when en route, per Haven Standard Clause 3.
If our camera inspection reveals an active chimney swift nest, federal law prohibits disturbance from roughly May through October. We document the finding with photos, schedule work for after the nest is vacant, and never charge for a return trip caused by wildlife compliance.
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
"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."They ran a camera down the flue and showed me the cracked tiles on a screen. The previous company had swept it twice and never mentioned it."
- Gregory F."They told me the flue was fine and I did not need a liner. Charged me for the inspection and nothing else. That is why I have called them twice since."
- Hal M.