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.
Chimney Cleaning in Medford, MA
A Level 2 chimney inspection and cleaning in Medford typically runs $250-$450 for a single-flue system and includes a camera scan down the full flue length with a documented photo record. For the triple-deckers and two-family homes that dominate Medford’s housing stock, multi-flue sweeps start around $350 because we’re often working three or four separate flues in one shared stack. Call (781) 649-9326 and we’ll quote your specific setup in writing before anyone schedules.
Medford’s pre-war masonry chimneys were built for coal and oil, not modern gas appliances. That mismatch, combined with the damp Mystic River valley air, leaves flues oversized, unlined, and prone to condensation damage that a simple brush-and-vacuum won’t catch. We find it on the camera, show it to you, and put the fix in writing with a price before work starts.
Why Medford Homes Are Different
Walk Boston Avenue, Main Street, or Salem Street and you’re looking at brick triple-deckers built between 1890 and 1940, most with original clay-tile flues or bare-brick channels that have never been relined. Those chimneys were sized for coal furnaces with hot, fast drafts. Convert to gas, and the same flue runs too cool, too slow, and wet. The result is glazed creosote, acidic condensation, and masonry that deteriorates from the inside out.
Medford sits low in the Mystic River valley, where fog and damp linger longer than in higher suburbs like Winchester or Arlington. That moisture penetrates old lime mortar, freezes, expands, and spalls the brick faces by late February. We’ve replaced crowns in West Medford that looked fine in October and crumbled by March. The freeze-thaw cycle here is not gentle on century-old masonry.
The triple-decker layout creates its own problem: one chimney stack, multiple flues, often with only the fireplace flue on anyone’s maintenance schedule. The old boiler flue, capped years ago but never swept, sits packed with soot. We start on one unit and find the adjacent flue is a fire hazard nobody knew existed. That’s routine in Medford, rare in single-family towns.
Our Main Medford Services
Most Medford calls fall into three categories: annual sweep and inspection, cap or crown damage from winter freeze-thaw, and liner failure in converted multi-unit chimneys. Here’s where each service lives on our site.
Chimney Cleaning & Sweep in Medford
Our sweep includes NFPA 211 Level 2 camera inspection, creosote removal, and a documented photo record of flue condition. In Medford’s multi-flue stacks, we inspect every accessible flue, not just the one you use. We often find adjacent flues that haven’t been opened in decades. Chimney Cleaning & Sweep in Medford covers scheduling, what to expect, and how we handle triple-decker layouts.

Chimney Repair in Medford
Spalling brick, eroded mortar joints, and failed flashing are standard late-winter findings here. We photograph the damage, quote tuckpointing or partial rebuild in writing, and source matching brick through our network when possible. Crown replacement is common by March. Chimney Repair in Medford details our repair scope and warranty terms.

Fireplace Services in Medford
Gas insert installations, firebox refractory panel replacement, and smoke chamber parging for older fireplaces. Many Medford fireplaces have deteriorated smoke chambers that fail NFPA 211 clearance requirements. We camera-scan before quoting any fireplace work. Fireplace Services in Medford lists insert options and firebox repair specifics.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Before
AfterChimney Cap & Crown in Medford

Medford’s exposed masonry chimneys take the full force of Boston metro freeze-thaw cycles, and the damp valley air accelerates the damage. A failed crown lets water into the stack, where it freezes, expands, and destroys the chimney from the top down. Cap and crown work is our most common repair call here from February through April, often discovered during routine sweeping when the camera reveals water streaking inside the flue. We install caps and repair crowns using materials from Olympia Chimney and Famco, sourced through our buying network to keep pricing honest. Chimney Cap & Crown explains the full product range.
Crown Repair
Signs you need it
Chunks of mortar missing from the crown top, hairline cracks widening after winter, or interior flue walls showing water staining on camera inspection.
What it costs in Medford
Crown repair with specialized masonry sealant runs $350-$650; full crown rebuild in poured concrete or precast starts at $800 and ranges to $1,500 depending on chimney width and access.
How we do it
We grind out cracked mortar, apply a bonding agent, and pour new crown material sloped to shed water, with a drip edge that protects the brick faces below.
Cap Installation
Signs you need it
Water dripping into the firebox during rain, birds or squirrels audible in the flue, or rust streaks on the exterior brick from a deteriorated existing cap.
What it costs in Medford
Single-flue stainless cap with screen installed starts at $250; multi-flue custom caps for Medford’s shared triple-decker stacks range $400-$900 depending on dimensions and mesh specification.
How we do it
We measure the flue or crown footprint, fabricate or order the cap from Olympia Chimney or Famco stock, and secure it with masonry anchors and high-temp sealant rated to 1,200°F.
What Chimney Cap & Crown Costs in Medford
| Item | Typical range in Medford |
|---|---|
| Stainless single-flue cap | $250-$450 |
| Multi-flue custom cap | $400-$900 |
| Crown repair (sealant) | $350-$650 |
| Full crown rebuild | $800-$1,500 |
Can a cracked crown wait until spring?
Small hairline cracks can be sealed before freeze season, but once water is entering and temperatures drop below 32°F, the damage accelerates weekly. We photograph the crack width and depth during inspection so you can see the risk and decide with real information.
Do I need a cap if my flue is already lined?
Yes - the liner top is exposed to rain and debris without a cap, and water pooling on the liner collar causes rust in stainless systems and spalling in clay tile. A cap protects the investment you’ve already made in the liner.
Chimney Liner & Rebuild in Medford

Medford’s triple-deckers and two-families routinely contain unlined or clay-tile flues sized for coal boilers, now venting gas appliances that run cooler and wetter. The result is acidic condensation eating mortar joints, carbon monoxide risk from backdrafting, and creosote accumulation in flues too large to maintain proper draft. We see this on camera in neighborhoods around Medford Square and West Medford almost daily. Liner installation or full rebuild is often the only code-compliant fix. Chimney Liner & Rebuild covers material specifications and warranty terms.
Stainless Steel Liner
Signs you need it
Clay tile chunks in the firebox, flue gases spilling into living space during appliance startup, or an NFPA 211 inspection showing gaps or missing tiles visible on camera.
What it costs in Medford
Single-flue stainless liner with insulation and top plate installed ranges $2,200-$3,800; multi-flue triple-decker installations start around $4,500 and scale with flue count and roof access difficulty.
How we do it
We drop a flexible DuraFlex liner down the flue, surround it with ceramic blanket insulation, and terminate with a sealed top plate and proper appliance connector.
Partial Rebuild
Signs you need it
Exterior brick spalling more than two courses high, mortar joints eroded to finger-depth, or the chimney leaning with visible separation from the building wall.
What it costs in Medford
Tear-off and rebuild of the top four to six courses, including new crown, runs $1,800-$3,200; rebuild from the roofline up with matching brick starts at $3,500.
How we do it
We scaffold the work area, remove damaged courses to sound brick, lay new matching units with type N mortar, and pour a sloped crown with integrated drip edge.
What Chimney Liner & Rebuild Costs in Medford
| Item | Typical range in Medford |
|---|---|
| Stainless liner, single flue | $2,200-$3,800 |
| Stainless liner, multi-flue | $4,500-$7,500 |
| Partial rebuild (top courses) | $1,800-$3,200 |
| Rebuild from roofline | $3,500-$6,000 |
Can I just clean an unlined flue instead of relining?
Cleaning removes creosote but does not fix the sizing mismatch or missing tile that creates the hazard. We show you the camera footage of the flue interior, explain the code requirement, and let the evidence guide the decision.
How long does a liner installation take?
Most single-flue liners are installed in one day; multi-flue triple-decker jobs typically need two days to properly insulate and terminate each run. We confirm the schedule in writing with your quote.
Brands We Service in Medford
We stock and install caps, liners, and repair materials from Olympia Chimney, Famco, and Copperfield, with DuraFlex flexible liner systems available for Medford’s tight, offset flue configurations. Most standard caps and liner diameters are on our Boston-area trucks, so we’re not waiting on freight to finish your job. our brands
Pricing for Chimney Cleaning in Medford, MA

| Service | Typical range in Medford |
|---|---|
| Single-flue sweep & Level 2 inspection | $250-$450 |
| Multi-flue sweep (2-4 flues) | $350-$650 |
| Stainless single-flue cap | $250-$450 |
| Multi-flue custom cap | $400-$900 |
| Crown repair (sealant) | $350-$650 |
| Full crown rebuild | $800-$1,500 |
| Stainless liner, single flue | $2,200-$3,800 |
| Stainless liner, multi-flue | $4,500-$7,500 |
| Partial rebuild (top courses) | $1,800-$3,200 |
| Rebuild from roofline | $3,500-$6,000 |
Medford prices run toward the higher end of these ranges when we’re working on triple-decker roofs with limited access or matching century-old brick for rebuilds. What pushes your specific price up or down is visible on camera before we quote, and every quote is a written price with scope and warranty before work starts - no surprises, no post-work invoices.
Neighborhoods We Serve in Medford
We sweep and repair chimneys across Medford with crews dispatched from our Boston office. Most appointments are scheduled within a week, with flexibility for tenants and landlords coordinating access in multi-unit buildings.
- West Medford
- Medford Square
- South Medford
- Medford Hillside
- Glenwood
Service Area - Cities Near Medford

Our crews work the full Boston metro corridor. If you’re just outside Medford, we also serve Everett, MA, Cambridge, MA, Winchester, MA, and Boston, MA with the same written-price, camera-documented standard.
Serving Medford, MA - Our Local Coverage Area
We’re based in the Medford 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 About Chimney Cleaning in Medford

Most chimney repairs and liner installations require a permit from Medford’s Building Department, which we pull as part of our scope. Annual cleaning and inspection typically do not. We handle the permit paperwork on rebuilds and liner jobs so the work is documented for your insurance and resale records.
We coordinate directly with tenants, landlords, or property managers and send a text when the technician is en route. For multi-unit buildings, we’ll inspect every accessible flue in the stack with proper notice to each unit, or focus on the specific flue you request if access is limited.
September through November is ideal, before heating season peaks and before freeze-thaw damage worsens. March and April are our busiest repair months as winter damage becomes visible. Booking in early fall secures your preferred date and catches problems before they become emergencies.
Ready for a written quote? Call (781) 649-9326. We’ll ask about your chimney type, fuel, and any symptoms you’ve noticed, then schedule a Level 2 inspection with camera documentation. Your price, scope, and warranty arrive in writing before any work begins.
What happens when you call
- 1A real person answersNo phone trees - talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Medford Customers Say
"Found a bird nest and a blocked flue we had no idea about. Photographed everything, cleared it, and explained what the smell had been."
- Curtis V."We were buying the house and needed a real inspection. The report had photographs, the standard it was done to, and a clear repair figure. The seller paid for the repair."
- Lorna D."They ran a camera down the flue and showed me the cracked tiles on a screen. The previous company had swept it twice and never mentioned it."
- Gregory F.





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