Chimney & air duct service in Watertown, MA
Early 1900s two-families and Colonials with older chimneys, shared flues, and retrofitted ducts.
Homes in Watertown
Two-families and single-families from the early 1900s, plus 1920s–1950s Colonials and capes.
Chimneys in Watertown homes
Watertown is a compact city on the Charles River, just north of Newton. Much of its housing was built in the early 1900s: two-families, single-families, and 1920s to 1950s Colonials and capes, many with a masonry chimney that has served several generations of heating systems.
What we see most often here
- Two-family and multi-unit houses. Each unit often has its own heating appliance venting into a shared chimney, and every flue has to be sized and lined for what’s connected to it. See chimney relining.
- Old clay tile liners. Clay flues from the early 1900s through the 1960s crack and shift with age, and a cracked liner can let heat and exhaust reach the framing. A camera inspection shows the condition of every tile, and a stainless steel liner is the usual fix.
- Oil-to-gas conversions. Many homes in the area have switched from oil heat to natural gas. Gas exhaust is cooler and wetter, and it can condense inside an oversized or cracked clay flue. A liner sized to the new boiler or furnace is often the answer.
- Freeze–thaw damage. New England winters swing above and below freezing again and again. Water that soaks into brick and mortar freezes, expands, and slowly breaks it apart. See crown, flashing, and brick repair.
Air ducts and dryer vents
Watertown homes often have ductwork added for central air long after they were built, and two-families frequently have two systems in one basement.
- Retrofitted ductwork. Many older homes were built for radiators and had central air added later, with ducts squeezed into attics, closets, and knee walls. Long, tight runs collect dust and leak at the joints. See duct repair and sealing.
- Long dryer vents. Laundry in the basement or a second-floor closet often means a long vent run with several bends. Lint builds up fast, and that’s a fire risk. See dryer vent cleaning and replacement.
- Bathroom fans that vent into the attic. In older homes, fans were often added later and simply end in the attic, where the moisture causes mold and rot. See exhaust fan cleaning.
Permits in Watertown
Building permits in Watertown come from Watertown Inspectional Services. Routine sweeping, inspections, and minor repairs don’t need a permit. Relining, rebuilding a chimney, and installing a new wood stove or insert usually do. If your project needs one, we’ll tell you up front.
Around Watertown
We work throughout Watertown, including near Watertown Square, Arsenal Yards, the Charles River, Perkins School for the Blind, and across ZIP code 02472.
All services in Watertown
Chimney & Fireplace
Watertown questions
Do you work on two-family homes in Watertown?
Yes. We inspect each flue in a shared chimney, and we can clean the ducts and dryer vents for both units in one visit.
Our basement smells musty when the AC runs. Is it the ducts?
It can be. Dust and moisture on the coil or in the ducts can cause odors. We look at the blower, coil, and ducts and show you what we find.
Do you charge extra to come to Watertown?
No. Watertown is inside our regular service area, so there’s no trip fee, and pricing is the same as in Newton.
How fast can you get to Watertown?
Usually same-day or next-day. For emergencies, our line is answered 24/7.
Most requested in Watertown

Relining & Firebox Repair
New flue liners and firebox repairs for fireplaces, stoves, and furnaces.
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Inspections & Camera Reports
A full look at your chimney inside and out, with camera footage and a written report.
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Air Duct Cleaning
Supply and return ducts cleaned under negative pressure, with before-and-after footage.
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Furnace & HVAC Cleaning
Blower, coil, and air handler cleaning, so clean ducts stay clean.
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Talk to someone about your chimney or air ducts.
Our line is answered 24/7. Or send a short request and we’ll call you back.