Boston's chimneys are mostly nineteenth and early-twentieth-century masonry, whether they rise from a Dorchester triple-decker, a Back Bay or South End brownstone, or a Charlestown rowhouse. These stacks were built tall to clear neighboring roofs, many carry several flues, and the mortar in them has been through more than a century of New England freeze and thaw. Chimney Experts Boston sweeps, inspects, and repairs chimneys across the city and Suffolk County, and we are used to shared walls, tight roof access, and flues that have been altered many times.
The $299 cleaning covers the sweep together with a Level 1 inspection and photos. If you would rather start with an assessment, the $49 inspection fee is credited toward any repair work you approve. Call (617) 404-9587 or book online to schedule your Boston appointment.
Boston housing and chimney profile
Boston is in Suffolk County, Massachusetts. The housing stock the town is known for includes Dorchester triple-deckers, Back Bay and South End brownstones, Charlestown rowhouses, and nineteenth- to early-twentieth-century masonry. What that means for an individual chimney is settled at the property, by inspection, not by the town it stands in.
What we see in Boston chimneys
Triple-deckers usually have one or two tall masonry stacks serving three units, with a flue for each fireplace and often a furnace flue as well. Over decades, fireplaces have been sealed, gas appliances connected, and liners added or skipped. We routinely find flues with no liner, clay tiles with open joints, and crowns that were patched with a mortar wash rather than rebuilt. Because the stack is shared, a defect in one flue affects the whole building.
Brownstones and rowhouses bring party-wall chimneys, where the stack sits on the shared wall and serves back-to-back fireplaces. The brownstone itself is a soft stone that weathers and spalls, and the brick behind the facade is often softer lime-mortar construction. Roof access is by hatch or from a flat roof, and caps are frequently missing. Gas inserts and gas log sets in these fireplaces need liners sized to the appliance, and old flues that were never meant for gas exhaust suffer condensation damage from the inside.
Our Level 1 inspection covers the firebox, damper, smoke chamber, flue interior, crown, cap, flashing, and every appliance connection, with photos. In multi-unit buildings each flue is inspected and reported on its own. You receive a written quote that lists each recommended repair and its price, whether that is a liner, crown rebuild, repointing, cap installation, or flashing work. No repair proceeds without your approval.
Services available in Boston
Chimney Sweep & Cleaning
$299
Inspect-first service with photo documentation and a written scope before work.
Chimney Inspection
$49 / $99 / $299
Inspect-first service with photo documentation and a written scope before work.
Chimney Repair
$300–$2,500+
Inspect-first service with photo documentation and a written scope before work.
Chimney Rebuild
$2,000–$10,000+
Inspect-first service with photo documentation and a written scope before work.
Repointing & Tuckpointing
$300–$2,500
Inspect-first service with photo documentation and a written scope before work.
Chimney Crown Repair
$300–$2,500
Inspect-first service with photo documentation and a written scope before work.
Chimney Cap Installation
$300–$1,300
Inspect-first service with photo documentation and a written scope before work.
Chase Cover Replacement
$800–$1,500
Inspect-first service with photo documentation and a written scope before work.
Chimney Flashing Repair
$200–$2,500
Inspect-first service with photo documentation and a written scope before work.
Chimney Liners & Relining
$1,200–$4,500
Inspect-first service with photo documentation and a written scope before work.
Chimney Waterproofing
$300–$800+
Inspect-first service with photo documentation and a written scope before work.
Creosote Removal
$299–$700+
Inspect-first service with photo documentation and a written scope before work.
Smoke Chamber Repair
$500–$1,500
Inspect-first service with photo documentation and a written scope before work.
Chimney Damper Repair
$199–$1,200
Inspect-first service with photo documentation and a written scope before work.
Firebox Repair
$350–$900
Inspect-first service with photo documentation and a written scope before work.
Masonry Repair
$300–$2,500+
Inspect-first service with photo documentation and a written scope before work.
Chimney Removal
Priced by inspection
Inspect-first service with photo documentation and a written scope before work.
Fireplace & Gas Fireplace Repair
$299–$1,500
Inspect-first service with photo documentation and a written scope before work.
Dryer Vent Cleaning
$99
Inspect-first service with photo documentation and a written scope before work.
Chimney Leak Diagnosis & Repair
$400–$3,000
Inspect-first service with photo documentation and a written scope before work.
Consistent Greater Boston pricing
| Cleaning + inspection | $299 |
|---|---|
| General inspection | $49, credited toward approved repair work |
| Buyer/seller inspection | $99 |
| Leak repair | $400–$3,000 |
How water problems are traced in Boston
A wet firebox does not automatically prove that the cap failed, and a ceiling mark beside the stack does not automatically prove that flashing failed. For Boston properties, we compare storm direction, timing, roof drainage, crown condition, wall absorption, and accessible attic evidence before assigning a repair.
The inspection starts with the homeowner's timeline: the room where moisture appeared, storm direction, whether the symptom occurs during every rain, and whether snow or ice was present. Exterior review then covers the cap, crown, termination, upper masonry, wall faces, flashing, cricket or back pan, and roof drainage above the chimney.
Where an attic, chase, or interior cleanout is safely accessible, it may reveal a path that is invisible from the roof. Old stains are documented separately from active moisture. If several openings are plausible, the recommendation can begin with a focused correction or further testing instead of selling every possible repair at once.
A broad water-repellent treatment is not presented as a substitute for open mortar, spalled brick, failed flashing, or a cracked crown. Physical defects are repaired first; a breathable masonry treatment may be considered only for suitable sound surfaces after repairs cure.
Seasonal planning in Boston
Late summer and early fall are useful times to schedule routine sweeping and inspection before heavy fireplace use. Exterior masonry work is easier to plan when surfaces are dry and temperatures support preparation and curing. Winter visits can still diagnose many problems, but snow or ice may limit roof access.
Spring review is useful after freeze–thaw exposure, especially when fragments, new cracks, rust streaks, or interior stains appeared during winter. A prompt inspection does not mean every condition needs immediate reconstruction; it establishes whether the change is cosmetic, repairable, or a safety and water-entry concern.
Homeowners can help by preserving prior reports, noting the timing of symptoms, keeping the hearth area accessible, and identifying appliance or renovation changes. That information makes the visit more efficient and supports a narrower, more accurate scope.
Questions Boston homeowners ask
Can you sweep a triple-decker chimney in Boston with three units?
Yes. We confirm how many flues are in the stack and which units use them, then inspect and sweep each active flue. Pricing is set out before we start, and the report documents each flue separately so the owner or condo association has a clear record.
What is included in the $299 cleaning?
The $299 cleaning includes a full sweep of the flue, smoke chamber, and firebox, plus a Level 1 inspection with photos of what we find. You get a written summary. Any repair recommendations are priced separately in writing before any work is done.
Do you work on gas fireplaces in Boston brownstones?
We do. A gas insert or log set in an old masonry fireplace needs a liner sized to the appliance, and that liner has to be inspected for corrosion and blockage. We check the appliance connection, the venting, and the termination, and note anything that does not meet the appliance requirements.
How does the $49 inspection credit work?
The $49 inspection is a Level 1 inspection with photos and a written report. If you approve repair work from that report, the $49 is credited toward the repair. If the chimney needs nothing, the fee covers the inspection and report.
How do you handle roof access on a rowhouse?
Rowhouses and brownstones are usually accessed from a flat roof or hatch, and we plan for that before the visit. The technician confirms roof access on arrival, protects the roof surface, and inspects the crown, cap, and flashing from above where it is safe to do so.
How does scheduling work for a Boston appointment?
When you book by phone or online, you receive a three-hour arrival window and a confirmation call before the technician arrives. Appointments are available Monday to Friday 8 am to 8 pm and Saturday and Sunday 8 am to 5 pm. Parking and building access details help us plan.