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 Repair Across Medway
Chimney repair in Medway, MA typically runs $450-$2,800 depending on the job, whether that’s repointing a few courses of brick or rebuilding a crown after years of Charles River valley moisture. Most repairs are scheduled within a week, and we’ll give you a fixed price before any tool comes off the truck. If you’re dealing with spalling brick, a leaking flashing, or a wood stove insert that’s been fighting an oversized 13×13 flue, call (781) 378-5846 and Wendell will talk you through what you’re seeing.
At Top Hat Chimney, we’ve worked Medway’s chimneys long enough to know the exact failure patterns this town produces. Older colonials near the mill village center have their own issues, but the 1960s-1980s ranches and split-levels off Holliston Street and Village Street keep us busiest. Those original single-flue masonry chimneys were sized for oil furnaces. Now they’re venting wood stoves, and that retrofit mismatch causes real problems. We’ll get into that below, but first: if you need a Chimney Repair professional who’ll actually show up and stand behind the work, you’ve found the right crew.
Why Top Hat Chimney Is Medway’s Preferred Chimney Repair Company
Wendell Pike founded Top Hat Chimney in 1999 and has been inside more Medway flues than he can count. When you call, a live person answers, around the clock, and it may well be Wendell himself. No call center, no voicemail box to nowhere. You’ll get an honest read on your chimney’s condition, not a pressure pitch.
Every job in Medway gets the 90-Day Done Right Promise in writing. If something isn’t right after we leave, one call brings us back at no charge. That’s not a slogan, it’s stamped on every invoice. We also give free second opinions on any competing written estimate. If a national outfit quoted you a liner replacement you’re not sure you need, bring us the paperwork and we’ll tell you straight whether the work is warranted. And we always offer $40 off any repair over $200, plus 10% off for seniors and veterans.
Our techs are background-checked, uniformed, and they give you a real arrival window. If the truck is running late, you’ll get a call. That matters when you’ve taken a morning off work.
Our Chimney Repair Services in Medway
Mortar Repointing
Medway sits in the upper Charles River valley, and the surrounding wetlands and river corridor push more ambient moisture into old brick than you’d see in, say, the drier upland towns to the west. That moisture works into mortar joints, freezes and thaws through the New England winter, and before long the joints are crumbling and letting water behind the brick face. Repointing replaces that deteriorated mortar joint by joint. On Medway’s older wood-frame colonials and farmhouses near the historic center, we match the original mortar’s composition and color so the repair doesn’t scream at you from the curb. A typical repointing job in Medway runs $800-$2,200 depending on how many courses are failing and how high the work sits off the ground.

Spalling Brick Repair
Spalling is what happens when face brick absorbs moisture, freezes, and pops off in flakes or whole chunks. It’s common on Medway chimneys that were built before modern vapor-permeable sealers existed, and it’s especially visible on 1970s ranches where the original brick was laid against a clay liner with nothing in between. We cut out the damaged brick, replace it with matched material or a properly rated firebrick where the heat demands it, and rebuild the face so the chimney sheds water again. Spalling repair in Medway usually falls between $600 and $1,800, depending on the number of brick replaced and whether the damage has reached the crown.

Chimney Waterproofing
A good waterproofing treatment stops the freeze-thaw cycle before it starts. We use Gelco waterproofing because it breathes, letting moisture escape from the inside of the masonry while keeping rain out. On Medway chimneys near the Charles River corridor and the wetlands off Route 109, this is often the single best preventive dollar a homeowner can spend. A standard waterproofing application runs $350-$650 for most single-flue Medway chimneys. Anything that seals less than that, or worse, uses a non-breathable acrylic, will trap moisture and accelerate spalling. We see that failed fix more often than we’d like.

Flashing Repair
Leaking flashing is one of the most common calls we get from Medway homeowners, especially on those mid-century raised ranches and split-levels where the chimney punches through a roof valley or a sidewall junction that collects snowmelt. Flashing failures let water run down the chimney chase, behind the roof deck, and into the attic before you ever see a stain on the ceiling. We remove the old flashing, inspect the roof deck and the masonry underneath, and install new step and counter flashing formed to the chimney’s actual footprint, not a generic boot. Flashing repair in Medway typically runs $450-$1,200, with the higher end for chimneys in steep roof pitches or complex valley intersections.

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.
Trusted Brands We Service in Medway
We install and service products from DuraFlex, Gelco, Olympia Chimney, and Copperfield. That matters because Medway’s mid-century homes routinely need a stainless steel liner sized down for a wood stove insert, and the right liner makes the difference between a flue that drafts clean and one that glazes over within a season. We keep common Medway-fit parts on hand, so a Chimney Liner & Rebuild - Medway or cap replacement doesn’t mean three weeks of waiting for a delivery truck. When we quote you a DuraFlex liner, you get DuraFlex. When we specify a Gelco waterproofing, that’s what goes on. No bait-and-switch brands you’ve never heard of.
Common Chimney Repair Problems We See in Medway Homes
- Oversized 13×13 flues converted from oil to wood. The 1960s-1980s ranches and split-levels across Medway were built with masonry flues sized for oil-fired furnaces. Now a small wood stove insert vents into that same oversized flue, and the exhaust cools before it reaches the top. Cool flue walls mean third-degree glazed creosote forms fast. Much faster than the homeowner expects, often within a single heating season of moderate use.
- Accelerated mortar joint spalling from river valley moisture. The Charles River corridor and the surrounding wetlands raise the ambient humidity around Medway chimneys year-round. That moisture drives efflorescence and freeze-thaw damage in mortar joints and brick faces, even on chimneys that look fine from the ground.
- Flashing leaks on raised ranches and split-levels. The roof geometry of a typical Medway raised ranch puts the chimney at a valley or sidewall junction where snow and ice pile up through the winter. That constant water pressure finds weak flashing joints fast. Leaks usually start quietly, in the attic, long before a ceiling stain shows up.
- First-degree creosote hardening into a third-degree glaze. Homeowners skip an annual Level 1 inspection, thinking a light burning season doesn’t warrant a sweep. The creosote layers harden into a tar glaze that brushes cannot remove. By the time the problem is visible inside the firebox, the flue needs mechanical removal or a full liner replacement. Once a year, burn or no burn. That’s the rule in Medway, where wood stoves are primary heat, not decoration.
A Medway-Specific Retrofit Problem Worth Understanding
Here’s the chimney problem that defines Medway more than any other town we work. The mid-century ranches and splits built across town during the postwar expansion were framed around oil heat. The original flues were often 13×13-inch clay-lined masonry, generous for an oil furnace’s steady, moderate exhaust. Then the oil crisis hit in the 1970s, and over the following decades homeowners swapped out the oil burners for wood stove inserts, some energy-efficient, some not. The stoves work well. The flues do not cooperate.
An oversized 13×13 flue venting a small wood stove never gets hot enough to maintain a clean draft. The exhaust cools and slows as it rises, leaving the flue walls cool and damp. Creosote condenses out of the smoke, coats the clay liner, and then keeps building. Within a single heating season of moderate wood burning, that soft first-degree creosote has cooked into a hard, shiny third-degree glaze. Brushes cannot remove it. The only real fixes are mechanical cleaning or, better, a correctly sized stainless steel liner that restores flue gas temperature and draft.
We recently repaired a 1970s split-level off West Street in Medway where the homeowner’s wood stove insert was connected to an original 13×13-inch clay flue. The oversized liner caused cool flue walls and rapid third-degree creosote buildup, plus spalling brick at the chimney crown. We rebuilt the top eight courses with new firebrick, installed a DuraFlex stainless steel liner sized for the stove, and sealed the crown with a Chimney Cap & Crown - Medway treatment and Gelco waterproofing. Draft improved immediately, and the creosote recurrence rate dropped to nothing worth mentioning. That job was not cheap, and we told the homeowner so before we started. But it was the right fix, and it bought the chimney another thirty years.
If you own one of those Medway ranches or splits and your chimney hasn’t been inspected since the stove went in, call us before burning season. The camera footage and a plain-English verdict, every time, no exceptions.
Pricing for Chimney Repair in Medway, MA
Here’s what we generally see in Medway. Mortar repointing runs $800-$2,200. Spalling brick repair lands between $600 and $1,800. A standard Gelco chimney waterproofing is $350-$650 for a single-flue chimney. Flashing repair runs $450-$1,200. A stainless steel liner replacement for an oil-to-wood conversion starts around $1,800 and can reach $3,400 depending on chimney height, access, and whether we’re working from scaffolding or a ladder off the roof deck.
What moves the price: how many brick courses are failing, how high the work sits, whether the crown needs rebuilding as well, and how much of the chimney face has already turned to scale. We give you a fixed price before work starts, not after. The number you hear on the phone is the number on the invoice. Estimates are free, and there’s no trip charge for calls inside our service county. Call (781) 378-5846 and we’ll schedule a look.
We Also Serve Cities Near Medway
Top Hat Chimney covers Medway and the surrounding towns, including Millis, Bellingham, Sherborn, and Medfield. If you’re just over the town line, the same crew and the same Chimney Repair standards apply. And if you’re not sure whether we cover your street, call. We’ll tell you straight.
Serving Medway, MA - Our Local Coverage Area
We’re based in the Medway 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 Repair in Medway
The short answer is an oversized flue. If your home still has its original 13×13-inch clay-lined masonry flue from the oil-furnace era and it’s now venting a smaller wood stove insert, the flue never gets hot enough to draft cleanly. Exhaust cools and creosote condenses out of the smoke, hardening into a third-degree glaze within a single season. A correctly sized stainless steel liner, usually DuraFlex in our work, restores the draft and stops the glaze from forming. Call (781) 378-5846 for an exact diagnosis, and we’ll bring the camera to show you what’s happening inside the flue.
No. Standard brushes cannot remove hardened glazed creosote. The tar-like glaze bonds to the flue wall and needs mechanical removal with specialized tools, or in severe cases, a liner replacement. If a sweep company tells you they can brush it out with a standard rod-and-brush setup, get a second opinion. We offer free second opinions on any written estimate in writing, and we’ll show you the camera footage before recommending anything. Call (781) 378-5846 to set up an inspection.
The upper Charles River valley and the surrounding wetlands push more ambient moisture into Medway’s masonry than the drier upland towns see. That moisture works into porous mortar joints, freezes in the long New England winter, and thaws in the spring, popping the mortar out in flakes and chunks. Repointing the failing joints and sealing with a breathable Gelco waterproofing slows the cycle significantly. We see this most on older homes near the river and routes 109 and 126, where the drainage patterns keep the ground damp. Call (781) 378-5846 for a free estimate on repointing or waterproofing.
Once a year, before burning season, no exceptions-schedule your Chimney Cleaning & Sweep in Medway. A Level 1 inspection in Medway takes about an hour and catches creosote buildup, crown cracking, and flashing failure before they become expensive problems. For converted oil-to-wood chimneys specifically, we recommend the first inspection happen before the second season of regular stove use, because that’s when third-degree glazing typically shows up on oversized flues. If you’ve burned through one winter and haven’t had a look inside, your flue is due. Call (781) 378-5846 and we’ll schedule a visit.
The work involves removing the old step and counter flashing from around the chimney, inspecting the masonry underneath for spalling or crown damage, and forming new flashing from materials that match the roof’s pitch and the chimney’s actual footprint. On Medway’s raised ranches and split-levels, the chimney often sits in a valley or sidewall junction that collects snowmelt, so we pay close attention to the overlap and the seal at the roof deck. A typical flashing repair in Medway runs $450-$1,200. Call (781) 378-5846 for an exact quote, estimates are free.
Call Top Hat Chimney for Medway Chimney Repair
If your Medway chimney is showing signs of trouble, or you just haven’t had it looked at since the wood stove went in, don’t wait until the cold snap makes the problem worse. Wendell and his crew serve Medway directly, with fair fixed pricing, the 90-Day Done Right Promise on every job, and a live person on the phone day or night at (781) 378-5846. Call today for a free estimate. The number you get is the number you’ll pay.
Written by the team at Top Hat Chimney, serving Medway, MA with fixed-price chimney repair and the 90-Day Done Right Promise.





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