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 Cap & Crown Across Chelsea
A chimney cap or crown repair in Chelsea, MA typically runs $340-$980 depending on the flue count, crown condition, and whether scaffolding is needed. Most cap and crown jobs in Chelsea are finished in a single visit, same day, with a written price before any work starts. If you’re seeing water stains on the ceiling below a shared chimney stack or smell smoke from a neighboring unit, call us at (980) 580-8641 and we’ll camera-scan the flue to find out exactly what’s happening.
We know Chelsea’s housing stock: the post-1908 triple-deckers on Bellingham Hill, the rowhouses along Broadway, the multi-unit brick buildings near Chelsea Square. These are dense, shared-wall structures where one chimney often serves three or four flues. When a cap fails, it fails for the whole building. Emberly Chimney Cleaners crews work in Chelsea every week, and most cap and crown work is completed the same day.
Why Emberly Chimney Cleaners Is Chelsea’s Preferred Chimney Cap & Crown Company
Our company name is the inspection standard we work to: NFPA 211 Level 2, camera down the flue, written price before work starts, and a documented record when it’s done. We made camera-scan documentation our default in 2009, years before insurers or local code enforcement asked for it. That practice became Clause 4 of the Haven Standard, which requires a photo record on every job.
For Chelsea customers, this matters more than in most towns. Your chimney stack is often shared. The crown sits at the top of a 100-year-old masonry assembly that may serve three separate apartments. We don’t guess at what’s wrong. We send a camera down the flue, show you the footage, and write down the exact scope and price before we pick up a trowel. Our 365-Day Done Right Promise means if it’s not done right, we make it right. You walk away with photos, camera footage, a written scope, and a written warranty, every time.
Corrine Halstead runs our chimney cap and crown division, and she’s assigned a named, background-checked technician to every Chelsea job. You get a text when they’re on the way. When you call (980) 580-8641, a live person answers, not a voicemail.
Our Chimney Cap & Crown Services in Chelsea

Cap Installation
We install stainless steel, copper, and galvanized caps sized precisely for your flue dimensions, not a one-size-fits-all that rattles in the wind. For Chelsea triple-deckers where multiple flues sit in the same chase, we measure each flue individually, even when they look identical from the ground. A cap that’s even half an inch too large lets rain blast past it and into the smoke chamber, accelerating third-degree creosote formation shared by every connected appliance.

Cap Replacement
A rusted or missing cap on one flue of a Chelsea multi-flue chimney allows rain and debris to fall into the smoke chamber, where it mixes with creosote and creates a sludge that hardens into a fire hazard. We see this constantly in older Chelsea buildings where the original caps from the 1980s and 1990s have simply rusted away. Replacement is straightforward: we match the cap to the flue type, draft requirement, and fuel source, then document the before and after with photos. We carry caps from Copperfield and Famco in our trucks for Chelsea jobs.

Crown Repair
Chelsea’s location on Chelsea Creek and the Mystic River means salt-laden air attacks chimney crowns faster than in Medford or Somerville. Salt accelerates mortar erosion, then winter freeze-thaw cycles work into the softened joints and crack them open. We repair crowns by removing loose material, building a reinforced bond coat, and resurfacing with a crown-specific sealant that flexes through freeze-thaw cycles instead of cracking. For severely spalled crowns, we rebuild the crown entirely with a proper slope and drip edge so water sheds away from the flue liners.

Crown Coating
Crown coating is the most cost-effective way to extend the life of a Chelsea chimney crown before it fails completely. On post-1908 brick triple-deckers, unsealed crown joints let tidal salt spray and freeze-thaw cycles push mortar crumbs into adjacent flue liners, creating blockages that can backdraft carbon monoxide into lower-floor units. We apply a flexible crown coat, not paint, that binds to the existing mortar and seals hairline cracks. Coating runs $340-$520 in Chelsea for a typical single-family crown, and $580-$980 for a multi-flue crown on a triple-decker.

What happens when you call
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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.
Before
AfterTrusted Brands We Service in Chelsea
We stock parts from Copperfield, DuraFlex, and Famco specifically because they hold up to Chelsea’s salt air and hard winters. Copperfield caps use heavier-gauge stainless steel, which matters when you’re a hundred yards from tidal water. DuraFlex liners handle the acidic condensate produced by modern gas appliances. Famco makes the multi-flue caps we install most often in Chelsea, where a single chase serves two or three separate flues. When we install a cap or repair a crown, we’re not guessing which brand will hold up. We’ve been using these manufacturers for years across Chelsea, Everett, and Revere, and we know how they perform in coastal New England conditions.
Common Chimney Cap & Crown Problems We See in Chelsea Homes

- Cross-flue contamination in shared stacks. In a triple-decker, a cracked crown lets water flow into a neighbor’s flue, causing hidden spalling and draft loss that shows up as smoke bleeding between attached units. We camera-scan each flue separately to map exactly which flue is compromised.
- Salt-driven mortar failure. The tidal exposure along Chelsea Creek means exterior chimney mortar erodes faster than inland. We see crown joints on Chelsea chimneys fail 3 to 5 years sooner than in Boston neighborhoods west of the Mystic.
- Multi-fuel flue tangles. Chelsea landlords and owner-occupants often add gas inserts, pellet stoves, or wood stoves to separate flues in the same aging chimney chase without coordinated permitting. Different fuels need different cap types, draft characteristics, and liner sizes. A cap that works for a gas insert can choke a wood-burning stove.
- Missing or rusted caps on multi-flue chimneys. One open flue isn’t just that flue’s problem. Rain falling into an unused flue migrates into the smoke chamber, which is shared, and every connected appliance picks up the moisture. We’ve documented this with camera footage in triple-deckers off Broadway and Washington Avenue.
The common thread in Chelsea is this: a Chimney Cap & Crown failure in an attached building isn’t an isolated issue. It’s a building-wide problem. That’s why we treat every cap and crown job in Chelsea as a Chelsea multi-flue inspection, even when the homeowner only called about one unit.
Pricing for Chimney Cap & Crown in Chelsea, MA
Here’s what we actually charge in Chelsea, in writing, before any work begins.
- Cap installation (single flue): $280-$380
- Cap installation (multi-flue, 2-3 flues): $440-$720
- Cap replacement: $310-$490 (single), $520-$840 (multi-flue)
- Crown repair (patch and seal): $340-$520
- Crown coating (single crown): $340-$520
- Crown coating (multi-flue crown): $580-$980
- Crown rebuild: $640-$1,150 depending on access and crown size
Access is a real factor in Chelsea. Roof pitches on triple-deckers are often steep, and party-wall chimney stacks sit tight to the roofline of the attached building. If we need a ladder, we’ll tell you. If we need staging, you’ll know before we start. There’s no surprise line item at the end. Every job gets a written price, written scope, and written warranty before anyone picks up a tool. Estimates are free. Call (980) 580-8641 and we’ll schedule a camera-scan inspection, which is included. You’ll see what we saw, and you’ll get a quote on the spot.
We Also Serve Cities Near Chelsea

Our Chelsea crews also cover the neighborhoods just over the city line. We’re in Everett weekly for similar post-primary multi-family stock, in Revere for beachside chimneys with aggressive salt exposure, in Malden for the older single-family inventory, and in Boston for multi-flue brick chimneys in the denser neighborhoods. If you’re just outside Chelsea, you’ll get the same written price, the same camera-scan documentation, and the same 365-Day Done Right Promise. Call (980) 580-8641 to confirm service in your ZIP code.
Serving Chelsea, MA - Our Local Coverage Area
We’re based in the Chelsea 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 Cap & Crown in Chelsea

A crown letting water into multiple flues usually shows up as efflorescence (white chalky mineral deposits) on the brick below the crown, water stains on ceiling drywall near the chimney chase, or a smell of damp creosote inside the building on humid days. You may also notice residents on different floors complaining of smoke or draft problems in different rooms at the same time. The only way to confirm it is a camera-scan of each flue, which we include on every visit. Call (980) 580-8641 and we’ll document it, show you the footage, and quote the crown repair in writing.
Yes. We install multi-flue caps, typically from Famco, that cover the entire crown while maintaining separate terminations for each flue. Whatever fuel each tenant uses, each flue gets the appropriate termination: a screened cap for wood, a draft-inducing cap for gas, or a custom cap for mixed fuels. We measure each flue independently and size the cap so no flue steals draft from another. This is one of the most requested fixes in Chelsea’s triple-deckers, where appliance additions happened over decades without any coordination. Call (980) 580-8641 for a written quote.
Chelsea sits along Chelsea Creek and the Mystic River with open tidal air. Salt-laden air attacks cementitious crown mortar faster than the inland air just a few miles west. Add New England’s winter freeze-thaw cycles, which expand any water that’s seeped into hairline cracks, and the crown degrades faster. We recommend crown coating every 4 to 6 years in Chelsea versus 7 to 10 years in inland towns. A flexible crown coat with the right sealant in Chelsea typically adds 5 to 8 years of life to a crown before a rebuild is needed. Call (980) 580-8641 and we’ll assess your crown with photos.
Stainless steel caps with a high chromium content are the right choice for Chelsea’s salt air. We use Copperfield and Famco caps because they’re built for coastal conditions. Galvanized caps rust quickly near tidal water, and the rust then stains the brick. Copper caps hold up well but cost more upfront. For most Chelsea multi-flue chimneys, a stainless steel cap from Copperfield or Famco offers the best balance of corrosion resistance and price. Call (980) 580-8641 and we’ll show you options with exact pricing.
A missing cap lets rain and debris fall into the smoke chamber, which is a shared space in a multi-flue chimney. The moisture mixes with creosote and breaks down the flue liner. Over time, third-degree creosote, which is the most fire-prone type, builds up in flues that are shared by the same chase. The fire risk isn’t limited to one flue or one unit. The heat from a chimney fire in one flue can transfer through the masonry to adjacent flues and into the framing around the chase. In a Chelsea triple-decker, that’s a full-building fire hazard. Call (980) 580-8641 to schedule a camera-scan and cap installation.
Written by Corrine Halstead, Owner at Emberly Chimney Cleaners, serving Chelsea with documented chimney inspections and repairs under the Haven Standard since 2009.





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