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 Medfield
Chimney cap and crown work in Medfield runs $340 to $1,400 for a typical repair or replacement, depending on whether you need a single-flue cap, a custom multi-flue base, or a full crown rebuild. Most Medfield jobs are completed in one visit, and we stock the common cap sizes and crown coating materials locally so we’re not waiting on a distributor in Framingham. If you’ve spotted a rusty cap leaning off the flue or white efflorescence staining the brick below the crown line, call (781) 378-5846 and Wendell will walk you through what you’re looking at before anyone climbs a ladder.
We know Medfield’s chimneys because we work on them every week. Not just the subdivision colonials off Pound Street and Adams Street, but the genuinely old town-center stacks near Meetinghouse Pond where the flues predate the Civil War. This page tells you what our Chimney Cap & Crown work actually costs here, why Medfield’s river-adjacent humidity eats crowns faster than the upland towns, and what we do differently when the chimney has no liner at all.
Why Top Hat Chimney Is Medfield’s Preferred Chimney Cap & Crown Company
Wendell Pike started Top Hat Chimney in 1999 and has been climbing onto Medfield roofs long enough to know which streets hold colonial-era stacks and which hold 1970s builder fireplaces. The work is the same by the book, but the judgment isn’t. A crown repair on an unlined 18th-century multi-flue chimney is a different animal from a cap replacement on a 1980s split-level off Route 109, which is why our Chimney Repair - Medfield approach adapts to what we’re actually facing.
We back every cap, crown, and liner job with our 90-Day Done Right Promise in writing. If it isn’t right, one call brings the crew back. No charge, no argument. That promise matters more in Medfield than most towns because the housing stock is old enough that what’s under the cap matters as much as what’s on top of it.
When you call us about Chimney Cap & Crown in Medfield, a live person answers. Not a call center in another state. Usually it’s Wendell himself, and he’ll ask the right questions before he ever books the visit. Our crew arrives background-checked, in uniform, with a real arrival window. If that window slips, someone calls you.
Our Chimney Cap & Crown Services in Medfield
Most Medfield homeowners call us for one of four things: a cap that rusted through at the base, a crown that’s spalling and cracking, a cap that needs replacement because the original builder installed the cheapest galvanized option available in 1978, or a crown coating that failed early because the house sits in the Charles River fog corridor. Whatever the issue, Medfield Chimney Cleaning & Sweep visits often reveal problems before they become expensive repairs. Each one has a solution, and we’ll show you the camera footage before we recommend anything.
Cap Installation
New cap installation in Medfield typically runs $180 to $480 for single-flue systems. If you’ve been burning a wood fireplace with no cap at all, rain has been running straight down your flue and soaking through whatever liner you have. That’s when our Fireplace Services in Medfield include measuring for proper protection. We measure the actual flue ID, not the brick opening, and install a stainless cap from Olympia Chimney or Famco that fits. The cheap box-store cap that rattles in the wind doesn’t last one Medfield winter.

Cap Replacement
Replacement caps in Medfield run $220 to $560 installed. The failure we see most often on 40-to-50-year-old subdivisions is rust-through at the cap base where the screen meets the collar. That rusted base lets rain pool on the crown, then freeze and expand inside the flue. We inspect the whole assembly and replace the cap with one that actually matches your flue size, not whatever was on the truck.

Crown Repair
Crown repair pricing in Medfield runs $375 to $1,400 depending on whether we’re repairing a section, recasting the whole crown, or adding a Gelco flexible crown coat over a new concrete base. Homes along the Charles River corridor, especially the low-lying streets near the rail trail, show crown deterioration about a decade ahead of upland streets like those off West Street near the Millis line. Persistent morning fog keeps the masonry saturated through the freeze-thaw cycle, and saturated mortar spalls. We rebuild with a proper overhang and drip edge so water sheds off instead of running down the brick face.

Crown Coating
Crown coating in Medfield runs $290 to $720 for a standard one-flue chimney. The coating needs a sound base underneath it. We see coating failures where a previous contractor painted a flexible sealant over deteriorating mortar without addressing the underlying freeze damage, and the whole thing cracked again within two years. We prep the crown properly first. In Medfield’s river-adjacent neighborhoods that prep work matters more than the coating itself.

Custom Cap and Multi-Flue Cap
This is where Medfield’s old housing stock makes things interesting. Wide 18th-century town-center chimneys weren’t built for modern flue liners. They were built as open rubble-core stacks with clay tile only where the original fireplaces were. When you add a gas insert or pellet stove, you can’t just slap on a standard round cap. The flue needs a custom multi-flue base plate sized to the actual liner dimensions, or the cap won’t seat properly and will leak from day one. Multi-flue cap work in Medfield runs $400 to $950, and we fabricate from Famco or Copperfield components to fit what’s actually on your roof.

What happens when you call
- 1
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.
Trusted Brands We Service in Medfield
We install and service caps and crowns from Olympia Chimney, Famco, Copperfield, and DuraFlex. We stock the common sizes in our local service trucks, so when your Medfield cap replacement needs a 13×13 stainless base with a specific screen mesh, we usually have it on hand. If the job requires a Copperfield custom fabrication for an odd-sized old flue, we order it and schedule the return visit before we leave your driveway. No guesswork on lead times.
Common Chimney Cap & Crown Problems We See in Medfield Homes
- Shared-stack crown failure in attached condos and duplexes. Medfield has a fair number of attached and semi-attached properties, particularly near the town center and off Adams Street. When a crown cracks on one unit’s side of a shared chimney, water sheeting off the neighbor’s roof section drains down between the flues. Both units see spalling brick within two or three winters, but only one side has the visible damage. We always inspect both flues before recommending a repair scope.
- Unlined 18th-century multi-flue chimney with a “solution” cap that doesn’t fit. The town center’s historic colonials have wide chimneys with two, three, or four flues and no liner material in the original construction. A standard round cap doesn’t seal these. The crown also spalls faster because flue gas condensation from a modern high-efficiency gas appliance penetrates the exposed brick crown directly. This is a reline-and-cap conversation, not a simple cap purchase.
- Builder-grade cap rust-through on 1960s-1980s subdivision homes. The colonial-revival wave off Pound Street, Farm Street, and around the high school was built with fireplaces as a marketing feature. The original caps were galvanized steel, not stainless. They rust through at the base in 15 to 20 years, which means most Medfield subdivisions are now on their second or third cap. If yours is original, it’s either rusted, missing, or about to be.
- Early crown coating failure from river corridor moisture. Homes between Main Street and the Charles River, especially on the low-lying roads that run parallel to the water, see persistent overnight ground fog from October through April. That fog keeps crown mortar saturated continuously, which breaks down flexible coatings years faster than the manufacturer warranty assumes. We apply Gelco coatings with a different prep protocol for these homes, and we’ll tell you honestly whether coating or full recasting makes more sense for your particular exposure.
Pricing for Chimney Cap & Crown in Medfield, MA
Here’s what we quote for standard work in Medfield. These are real ranges based on what we’ve charged in this market over the past several seasons, not national averages.
| Service | Typical Medfield Range | What Affects Price |
|---|---|---|
| Single-flue cap installation | $180 - $480 | Flue size, roof pitch, cap brand |
| Cap replacement | $220 - $560 | Rust damage extent, custom sizing needed |
| Crown repair (section) | $375 - $700 | Damage area, matching mortar, roof access |
| Crown rebuild / recast | $700 - $1,400 | Chimney height, flue count, liner condition |
| Crown coating | $290 - $720 | Prep work required, flue count, exposure |
| Multi-flue / custom cap | $400 - $950 | Base plate size, flue count, fabrication details |
Two things push Medfield prices toward the higher end more often than you’d expect: roof pitch on the older colonials (some town-center roofs are too steep to safely walk without a ladder stabilizer and harness setup) and shared flue conditions where the neighbor’s side governs what you can do. We give you an exact price before a single tool comes off the truck. The number Wendell quotes on the phone is the number on the invoice. Call (781) 378-5846 for a free estimate, and ask about our $40-off-any-repair-over-$200 standing offer.
We Also Serve Cities Near Medfield
Our Medfield customers are mostly concentrated here, but we also run cap and crown jobs in the surrounding towns when our schedule allows. We regularly work in Medfield and the nearby communities of Millis, Dover, Sherborn, and Medway. If you’re on the Medfield side of a bordering town but close enough to wave at the town line, call us and we’ll get you scheduled.
Serving Medfield, MA - Our Local Coverage Area
We’re based in the Medfield 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 Medfield
No. When Medfield homes share a chimney stack, especially in the attached duplexes and condo conversions near the town center and off Adams Street, the crown is a single structural element governing both flues. A crack in your side lets water in, but the neighbor’s wood stove draft changes the pressure inside the shared masonry, which is why you smell smoke only when they burn. We inspect the full crown, both flue caps, and both liner conditions before giving you a fixed quote. Call (781) 378-5846 and Wendell will look at the whole stack, not just one side.
No, not safely or legally. Medfield’s 18th-century town center chimneys were built as rubble-core masonry with bare brick exposed to the flue. Installing a gas insert means moisture and acidic flue gas condensation moving through that unlined brick. You need a properly sized liner first, and then the cap must be matched to the liner, not to the old brick opening. In a wide multi-flue chimney, that often means a custom multi-flue cap fabricated for the actual liner dimensions. Call (781) 378-5846 before you buy the insert. We’ll camera-inspect the flue and show you what’s actually there.
It depends on what the cap was protecting. In Medfield’s attached duplexes, a missing cap lets rain run directly down the flue and pool on the smoke shelf, where it wicks into the crown mortar from underneath. We inspect the crown for visible cracking and spalling, and the flue liner for water damage. If the crown is sound, it’s a straightforward cap replacement. If the crown has been saturated through a couple of freeze-thaw cycles, we’ll recommend a crown repair before installing the new cap. We’ll show you the camera footage either way. Call (781) 378-5846 for a free in-person assessment.
Because flexible crown coatings need a sound base underneath them, and many Medfield homes never get the prep work done first. In the low-lying streets near the Charles River, ground fog from October through April keeps the crown masonry wet continuously. A coating applied over old, spalling mortar just cracks from the same freeze-thaw forces that damaged the crown in the first place. We scrape and prep back to solid material, repair the crown’s overhang and drip edge, and only then apply a Gelco flexible crown coat. Call (781) 378-5846 and ask Wendell to inspect the crown before you spend money on another coating. We also give free second opinions on any competing written estimate.
The white sandy material is efflorescence: water-soluble salts being drawn out of the mortar by decades of rain running directly into the flue and soaking through the crown. Medfield’s 1950s and 1960s subdivision homes, particularly the ranch and split-level stock off Farm Street and around the high school, often never had caps installed. The crown has been absorbing water for 60-plus years and the mortar joints are starting to dissolve. We fix this with a proper cap installation plus crown repair if the damage is advanced. Call (781) 378-5846 for an exact quote. Estimates are free, and the camera inspection is included.
Contact Top Hat Chimney for Cap & Crown Work in Medfield
If your chimney cap is leaning, rusted, or missing entirely, and the crown looks cracked or spalled, the repair is almost always cheaper now than after another winter. Medfield’s freeze-thaw cycle and river-adjacent humidity will not go easy on compromised masonry. Call (781) 378-5846. Wendell or one of his crew will answer, ask what you’re seeing, and give you an honest assessment before you commit to anything. No trip charge for Medfield calls. We back the work with our 90-Day Done Right Promise, and we’ll see you again at the hardware store either way.
Written by Wendell Pike, Owner at Top Hat Chimney, serving Medfield since 1999.





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