Chimney, Stove, & Fireplace Services in Central Massachusetts

Code-grounded craftsmanship from a retired-firefighter-owned company serving Leominster, Fitchburg, and Central MA. Every job done right the first time.

On Duty Chimney, Masonry & Stove is a Massachusetts-licensed full-service chimney company owned and operated by Bryan LeBlanc, a retired firefighter who built this business on the same principle that guided his career: do the work right because lives depend on it. Whether you need a routine sweep, an emergency leak repair, or a full stove installation, every job is performed by trained technicians, documented with photos, and grounded in current Massachusetts code.

Chimney Services

Chimney Sweeping & Cleaning

Professional chimney sweeping that removes creosote, soot, and debris using methods matched to your specific flue type. We don't just clean what's visible. We address the buildup that causes chimney fires and venting failures, and we leave your home cleaner than we found it.

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Chimney Inspections

Camera-assisted Level 1, 2, and 3 inspections that show you exactly what's happening inside your chimney. Every inspection includes photo documentation, a clear explanation of findings, and honest recommendations on what needs immediate attention versus what can wait.

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Chimney Relining

Stainless steel relining for damaged, undersized, or non-compliant flues serving fireplaces, wood stoves, furnaces, and boilers. A failing liner is one of the most common causes of carbon monoxide leaks and chimney fires. We diagnose the issue and install a code-compliant liner backed by manufacturer warranty.

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Masonry & Crown Repair

Tuckpointing, crown rebuilds, brick replacement, and full chimney rebuilds. Massachusetts freeze-thaw cycles destroy mortar joints and crowns faster than most homeowners realize. We rebuild to code with materials that hold up to New England weather, not summer-only patches that fail by February.

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Chimney Caps & Chase Covers

Custom-fit chimney caps and chase covers that keep rain, snow, animals, and debris out of your flue. We install single-flue, multi-flue, and stainless steel chase covers sized to your specific chimney, not the generic big-box options that fail within a few seasons.

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Waterproofing & Leak Repair

Most chimney leaks aren't roof problems. They're masonry, crown, flashing, or chase cover problems. We diagnose the actual source with photo documentation, then waterproof or rebuild as needed. No band-aid sealants, no recurring leaks, no callbacks.

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Stove & Fireplace Services

Wood Stove Sales & Installation

EPA-compliant wood stove sales, installation, and venting. We carry top brands, walk you through the right model for your home and heating goals, and handle the full installation including hearth pad, venting, and final inspection. We will not install non-compliant stoves.

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Gas Stove Sales & Installation

Direct-vent and freestanding gas stove sales and installation. Cleaner burning, less maintenance, and instant heat at the push of a button. We handle everything from gas line connection to venting to final commissioning, all to current Massachusetts gas code.

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Pellet Stove Sales & Installation

Pellet stove sales, installation, and ongoing service. Pellet stoves offer efficient zone heating with significantly lower fuel costs than oil or propane. We help you choose the right unit for your space and install it to manufacturer and code specifications.

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Fireplace Installation

Wood-burning, gas, and prefabricated fireplace installation. Whether you're adding a fireplace to a new build or replacing an old unit, we handle framing requirements, venting, hearth construction, and finish work to deliver a fireplace that's as safe as it is beautiful.

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Gas Log Installation

Vented and ventless gas log set installation in existing fireplaces. The look of a real wood fire without the cleanup, the cord wood, or the chimney maintenance. We handle gas line connection, log placement, and safety testing to ensure clean combustion every time.

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Venting & Specialty Services

Dryer Vent Cleaning

Full dryer vent cleaning that removes lint buildup from the entire run, not just the visible portion. Clogged dryer vents are the leading cause of dryer fires in the United States. Annual cleaning protects your home and extends the life of your dryer.

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Animal Removal & Exclusion

Birds, squirrels, raccoons, and bats love uncapped chimneys. We safely remove the animals, clean up the mess, and install caps and exclusion hardware so it doesn't happen again.

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Why Homeowners Choose On Duty

On Duty was founded by Bryan LeBlanc, a retired firefighter who spent his career responding to the kinds of fires and carbon monoxide calls that proper chimney maintenance prevents. That perspective shapes how we work. We don’t take shortcuts, we don’t oversell, and we don’t install anything that doesn’t meet current Massachusetts code.

Credentials and qualifications:

Massachusetts Construction Supervisor License #CS106348
Massachusetts Home Improvement Contractor #201587
17 years of industry experience
Fully insured (general liability and workers’ compensation)
Massachusetts service area only, no exceptions
Photo documentation on every job
Free estimates

Serving Central Massachusetts

On Duty Chimney is headquartered in Central Massachusetts and serves homeowners across Worcester County and surrounding communities. Our regular service area includes Leominster, Fitchburg, Lunenburg, Ashburnham, Princeton, Sterling, Lancaster, Harvard, Groton, Bolton, Townsend, Shirley, Westminster, Gardner, and the surrounding towns east of Leominster. Massachusetts only.

Ready to Schedule Service?

Whether you need a routine chimney sweep, an emergency leak repair, or a new stove installed before the heating season, our team is ready to help. Call 978-413-7077 or request an appointment online to schedule service anywhere in our Central Massachusetts service area.