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
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Before
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Before
AfterTrusted Chimney Cap & Crown for Boston Homeowners
A damaged chimney cap or cracked crown in Boston doesn’t announce itself loudly. Water gets in, freeze-thaw cycles do their quiet work through a New England winter, and by spring the flue liner is spalling and the mortar joints are failing. Since 2009, our team has completed more than 38,000 chimney inspections and cleanings across the Boston metro, and the pattern we see again and again is the same: a $400 crown repair deferred becomes a $4,000 liner replacement two winters later. We fix caps and crowns the way Boston weather demands they be fixed: with materials that hold up to ice, salt air, and nor’easters, and with a written price before any work starts. Call (857) 567-8887 for a free estimate.
What Our Chimney Cap & Crown Service Includes
Cap Installation
A chimney cap is a metal cover fitted to the top of your flue that keeps rain, snow, animals, and debris out while letting smoke and gases escape. If your chimney has no cap, or a basic contractor-grade cap that’s rusting through, you’re letting water directly into the flue every time it rains. We install stainless steel and copper caps sized to your exact flue dimensions, and every installation includes a camera-scan inspection so we can confirm the cap is seated properly and the flue below is clear. Cap installation in Boston typically runs $350 to $650 depending on flue size and material.
Cap Replacement
Caps fail for predictable reasons: cheap galvanized steel corrodes in Boston’s coastal air, wind-driven rain tests weak seams, and squirrels and raccoons find their way in when the mesh screen tears. A rusted cap isn’t doing its job, and at that point the fix is replacement, not repair. We remove the old cap, inspect the crown beneath for damage, install the new cap with a proper mechanical fastening system, and document everything with photos before and after. You’ll see exactly what was there and exactly what changed.
Crown Repair
The crown is the concrete or mortar slab that caps the chimney structure itself, sloped to shed water away from the flue. In Boston, crowns crack from freeze-thaw cycling, and once a crack opens, water seeps into the masonry below and expands every time it freezes. We repair crowns by cleaning out the damaged area, filling with a proper crown repair compound, and re-sloping when needed so water actually moves away from the chimney. For crowns that are beyond patching, we rebuild them entirely, and we can tell you which situation you have after one camera-scan inspection, not after the work starts.
Crown Coating
Sometimes the crown is structurally sound but porous, absorbing moisture slowly and feeding efflorescence on the brick below. In that case, repair isn’t the right call; sealing is. We apply a flexible, waterproof crown coating (we use HeatShield and Gelco products where appropriate) that bonds to the existing surface and stops water absorption without trapping moisture inside the masonry. A quality crown coating adds years to the life of an otherwise healthy crown, and it’s a job we can typically complete same-day once the crown is clean and dry. Coating in Boston usually runs $300 to $550, depending on crown size and accessibility.
Multi-Flue Cap
Boston row houses and multi-flue older homes in neighborhoods like Dorchester, South Boston, and Charlestown often have two, three, or four flues in a single chimney structure. Rather than capping each flue individually, a single multi-flue cap covers the entire crown area, simplifying access and providing uniform protection. We custom-fabricate multi-flue caps to match your crown dimensions, because an off-the-shelf cap that doesn’t fit leaves gaps that water and animals will find. The fabricated cap gets set in place, mechanically fastened, and photographed as part of your documented record.
Custom Cap
Some chimneys don’t fit a standard cap, period. Older Boston homes may have unusual flue shapes, decorative corbels that limit clearance, or draft issues that require a taller cap or a specialty design. We work with Olympia Chimney and Famco for custom and specialty cap fabrication, measured to your exact chimney profile. If you want a specific metal finish, a particular mesh density, or a cap that also solves a draft problem, we’ll specify it, price it in writing, and show you the completed installation on camera before we leave the roof.
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.
Brands We Service for Chimney Cap & Crown
We’ve installed and serviced hundreds of Famco caps over the years, and we stock their most common sizes and replacement mesh screens. Famco’s stainless steel line has held up well in Boston’s coastal climate, and when one of their caps fails, it’s almost always the mesh screen rather than the hood itself, which means a $40 screen replacement instead of a $400 cap replacement. We’ll tell you which situation you have, with photos, before recommending any work.
For crown coating and repair materials, we work primarily with HeatShield and Gelco. Both companies make crown sealants and repair compounds designed for real freeze-thaw cycling, not the mild-climate formulas that break down after two New England winters. We’ve also used Olympia Chimney products for custom cap applications where standard sizing doesn’t apply. Whether you have a Famco cap, an Olympia cap, a Gelco-coated crown, or any other make, we can service it. The material matters less than the installation quality, and that’s what we control.
BeforeAfterSigns You Need Chimney Cap & Crown Right Now
- Water stains on the ceiling or walls near the chimney. Water entering through a missing cap or cracked crown travels down through the chimney chase and shows up as staining on interior surfaces. By the time you see the stain, the water has already been working on your flue liner and framing. This isn’t a cosmetic problem; it’s evidence of a leak you need to trace.
- Pieces of mortar or concrete in the fireplace or on the ground near the chimney. If you find small chunks of crown material at the base of the chimney, the crown is actively breaking apart. Each piece that falls means less surface protecting the masonry below. Snow and ice accelerate this, so a spring check after a hard Boston winter is worth scheduling.
- Rust stains on the chimney exterior or cap. Rust means metal is corroding, and on a chimney cap that means water is getting through. Rusting caps fail quickly once they start, and the mesh screen is usually the first component to go. When the mesh fails, animals get in, and raccoons in a chimney flue is a problem you don’t want.
- Animal sounds or droppings in the fireplace. Squirrels, birds, and raccoons enter through uncapped or damaged flues. Beyond the noise and smell, animal nests block the flue and create a carbon monoxide risk when you light a fire. A proper cap with intact mesh is the only reliable prevention.
- Visible cracks in the crown from ground level. You can sometimes see crown damage from the ground with a pair of binoculars, especially on shorter chimneys. If you see cracks, schedule a camera inspection. Small cracks that look minor at 30 feet are often wider at the surface and deeper than they appear, and every winter makes them worse.
Our Chimney Cap & Crown Process, Step by Step
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Written estimate and scope. You call us, we ask about your chimney and any symptoms you’re seeing, and we schedule a visit. Before any work is agreed to, you receive a written price and a written scope that names exactly what we’ll do, what materials we’ll use, and what it costs. This is Haven Standard Clause 1: have it in writing. You won’t get a tech in your home pushing an upsell.
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Camera-scan inspection. Every job starts with a camera down the flue. We document crown condition, cap condition, liner integrity, and creosote classification if relevant. This is NFPA 211 Level 2, and we’ve done it this way since 2009, which is why we can show you the problem before asking you to pay for the fix. The photos are yours to keep.
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Specific repair plan. Based on what the camera shows, we recommend the right scope: cap replacement, crown repair, crown coating, custom fabrication, or some combination. If the crown is fine and you only need a cap, we’ll tell you that plainly. Nothing is recommended without camera evidence you can see for yourself.
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Repair or replacement. The work happens on the schedule we agreed on, with a background-checked, uniformed technician assigned to your job. You get a text when they’re on the way. The technician carries license information and can answer questions on-site. Most cap and crown jobs are completed in one visit.
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Documented photo record. When the work is done, you receive a documented photo record showing the condition before, the work in progress, and the completed job. This is Haven Standard Clause 4, and it has been standard practice here since 2009. You are not asked to take anyone’s word that the cap is installed correctly; you’ll see it.
How Much Does Chimney Cap & Crown Cost in Boston?
Three factors most affect the price: the size and height of your chimney (taller chimneys require more setup and safety equipment), the condition of the crown beneath the cap, and the material you choose (copper runs 30 to 40 percent more than stainless steel). To avoid overpaying, always get a written estimate that separates the cap cost from the crown work, so you can see exactly what you’re paying for. Our free estimate includes the camera inspection, the written scope, and the written price, so you can compare against any competitor quote and bring it to us for a free second opinion. Call (857) 567-8887 for an exact quote.
Chimney Cap & Crown Near Boston, Our Service Area
We serve homeowners throughout the Boston metro, including Quincy, Cambridge, Milton, Newton, Winchester, Waltham, Wakefield, Norwood, Peabody, Reading, and Burlington. Most cap and crown jobs are scheduled within one to two weeks, and we coordinate roof access so you don’t have to be home for the work. If you’re comparing chimney cap quotes in the area, see how we compare on our Chimney Cap & Crown in Boston page for details on our local process. Homeowners in nearby communities can also review Chimney Cap & Crown in Quincy and Chimney Cap & Crown in Cambridge for area-specific information.
Serving Boston, MA - Our Local Coverage Area
We’re based in the Boston area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions, Chimney Cap & Crown in Boston
What is a chimney cap and crown?
A chimney crown is the concrete or mortar slab at the top of the chimney structure, poured or formed to slope water away from the flue, while a chimney cap is the metal cover that fits over the flue opening itself to keep out rain, snow, animals, and debris. They work together: the crown protects the masonry structure, and the cap protects the flue interior. When either fails, water gets into places it doesn’t belong, and Boston’s freeze-thaw winters make the damage worse every year.
How long does chimney cap and crown work take?
Most chimney cap replacements and crown repairs are completed in one visit of two to four hours, depending on chimney height and how much crown work is required. Crown coating can often be completed in under two hours, though the crown surface must be clean and dry first. A full crown rebuild or custom cap fabrication takes longer because the materials must be made or formed to fit your chimney exactly, so we’ll schedule those as a separate visit once the cap is fabricated.
How much does a chimney cap and crown repair cost in Boston?
Cap installation in Boston typically costs $350 to $650, crown repair runs $450 to $900, crown coating runs $300 to $550, and a full crown rebuild runs $900 to $1,800. The biggest cost variables are chimney height, crown condition, and whether you choose stainless steel or copper for the cap. Every estimate we provide is written before work starts and includes the camera inspection, so you know exactly what you’re paying for and why. Call (857) 567-8887 for a free quote.
Do you service Famco chimney caps?
Yes, we install, replace, and repair Famco chimney caps throughout the Boston area, and we stock their most common stainless steel sizes and replacement mesh screens. We’ve found Famco’s stainless steel line performs well in Boston’s coastal climate, and when a Famco cap does fail, it’s usually the mesh screen rather than the hood itself. That means a small, inexpensive fix rather than a full cap replacement, and we’ll show you photos so you can verify which situation you have.
Is chimney cap and crown repair available as an emergency?
A missing cap or badly cracked crown is urgent in the sense that every rainstorm is making the problem worse, but it’s rare that it needs to be addressed same-day unless water is actively entering your living space. We can typically schedule cap and crown work within one to two weeks, and our phone line is answered by a live person 24 hours a day, 7 days a week, so you can call (857) 567-8887 anytime to discuss your situation. If you’re dealing with an active leak, we’ll work with you on timing.
Is your chimney cap and crown work warrantied?
Every job we complete is backed by our 365-Day Done Right Promise: if it’s not done right, we make it right. The warranty is written, and it’s delivered with your documented photo record before you pay, not after. We also provide a free second opinion on any written competitor estimate, so if you’re comparing quotes, bring us what you have and we’ll review it honestly.
How do I prepare for a chimney cap and crown service visit?
There isn’t much preparation required on your end. The work happens on the roof, so we need safe access to the chimney, which usually means a clear path for a ladder and enough space for setup. If you have roof-mounted equipment, decorative trim, or a tricky roofline, we’ll ask about it when you call so we can bring the right equipment. You do not need to be home for the work, and we’ll text you when the technician is on the way.
Schedule Your Chimney Cap & Crown Service in Boston Today
If your cap is rusted, your crown is cracked, or you simply haven’t had a camera down the flue in a few years, call (857) 567-8887 for a free, written estimate. Every job is priced before work starts, documented with photos when it’s done, and backed by our 365-Day Done Right Promise. Corrine Halstead and our team at Level Two Chimney Boston serve homeowners from Dorchester to Newton and everywhere between. We’ll tell you plainly what you need and what it costs, and we’ll show you the evidence before we ask for a dollar.
Written by Corrine Halstead, Owner at Level Two Chimney Boston, serving the Boston metro and Cambridge since 2009.