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 Cleaning & Sweep Across Medford
Chimney cleaning and sweep in Medford typically runs $189-$329 for a standard Level 1 sweep with inspection, while a Level 2 camera inspection runs $289-$449 depending on stack height and access. Most jobs are completed in a single visit, and estimates are always free. Call (781) 404-3793 to speak with a live person, any hour of any day.
We’ve been dispatching crews to Medford from our Boston office for decades. We know the tight street parking off Mystic Valley Parkway, the triple-decker density around Wellington Circle, and the way the Mystic River valley holds moisture against century-old brick stacks longer than drier towns uphill. Our Chimney Cleaning & Sweep team doesn’t treat Medford like any other suburb. The housing stock here - heavy with pre-WWII brick two-families and triple-deckers built between 1890 and 1940 - creates chimney problems you simply don’t see in post-war ranch developments. Single chimney structures routinely contain three or four separate flues serving multiple units, which means deterioration in one flue wall can compromise adjacent active flues in the same stack. That shared-flue reality changes how we inspect, how we sweep, and what we document.
Why Hearthstone Chimney Co. Is Medford’s Preferred Chimney Cleaning & Sweep Company
Medford homeowners call us because we’ve earned a reputation for plain talk and documented findings. Over 42 years in business, we’ve learned that trust in this city is built slowly and lost fast - especially among residents who’ve owned their homes for twenty-plus years and remember every contractor who oversold them.
Our Level 2 inspections end with photos you can see and a plain-English verdict. No jargon, no scare tactics. If your chimney can safely wait a season, we’ll say so. If it can’t, we’ll show you exactly why on camera. The 90-Day Done Right Promise backs every job in writing - if it’s not right, we make it right, no paperwork and no arguing.
A live person answers our phones 24 hours a day, 7 days a week. Not voicemail, not a callback queue. When you call (781) 404-3793, you reach someone who can book your Medford appointment, explain what to expect, and confirm your estimate in plain terms.
Our background-checked, uniformed technicians complete most jobs in a single visit. No-hassle upfront pricing means the number on your estimate matches the number on your invoice. We’ve found Medford residents appreciate that predictability, particularly in a city where home maintenance budgets stretch across aging systems in older properties.
Our Chimney Cleaning & Sweep Services in Medford
Level 1 Inspection
A Level 1 inspection is the baseline annual service for chimneys with no changes to appliance or fuel type. In Medford, we perform these on active fireplaces and wood stoves where the flue is known, accessible, and in regular use. The technician examines readily accessible portions of the chimney exterior, interior, and connecting appliance, checking for obstructions, creosote buildup, and basic structural soundness. For many homeowners near Medford Square with newer liner installations, this annual checkup satisfies warranty and insurance requirements. Cost typically runs $189-$249.

Level 2 Inspection - Critical for Medford’s Shared Stacks
Level 2 inspection is where Medford’s triple-decker reality demands attention. This service includes everything in Level 1, plus camera examination of internal flue surfaces and accessible portions of the chimney exterior and attic. We run a high-resolution camera the full length of every flue in the stack - not just the one you use.
Here’s why that matters locally. Medford’s pre-WWII triple-deckers commonly pack three or four separate flues into one brick stack, so a failing flue wall next to an abandoned lower-unit flue can pull combustion gases out of a neighbor’s active appliance and into a unit that never lit a fire. Only full-stack camera work catches this. On a two-family off Mystic Valley Parkway, the top-floor tenant’s gas furnace ran clean but the first-floor unit kept smelling exhaust. We ran a Level 2 inspection and cameraed the full stack, finding the lower flue abandoned and unlined while the active flue had a cracked clay tile; we installed a HeatShield liner in the active flue and capped the dead column to break the backdraft pathway. Level 2 inspection in Medford runs $289-$449.

Creosote Removal
Creosote accumulates in wood-burning flues as a tar-like or flaky deposit, and in Medford’s older, often-oversized flues, it can build unevenly where draft is weak. We remove creosote using rotary brushes, scrapers, and industrial vacuums sized to your flue diameter. Stage 1 creosote (sooty, brushable) and Stage 2 (shiny, tar-like flakes) yield to standard mechanical cleaning. Stage 3 glazed creosote, hardened to a glassy shell, requires more intensive treatment - we’ll identify this during inspection and explain before proceeding. Standard creosote removal in Medford runs $189-$289 when bundled with Level 1 inspection; heavy Stage 3 buildup may add $75-$150 depending on flue length and access.

Soot Removal
Soot removal addresses the powdery carbon residue from oil and gas appliances, common in Medford’s converted heating systems. Soot is more than cosmetic - it narrows flue diameter, restricts draft, and can contain acidic compounds that accelerate mortar deterioration. In the Mystic River valley’s damp microclimate, wet soot compounds freeze-thaw damage on already-stressed masonry. Our technicians use HEPA-contained vacuum systems and specialized brushes to clear soot without contaminating your living space. Soot removal with inspection in Medford typically runs $189-$279.

What happens when you call
- 1
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 Medford
We stock and install professional-grade materials from industry-trusted manufacturers - DuraFlex stainless liners, HeatShield cerfractory resurfacing, Famco chimney caps and dampers, and Copperfield masonry repair products. For Medford’s older flue systems, we keep common DuraFlex liner diameters and Famco cap sizes on our trucks, which means faster turnaround when your triple-decker stack needs same-visit repair. No builder-grade substitutes. The parts we use are the parts we’d want in our own chimneys.
Common Chimney Cleaning & Sweep Problems We See in Medford Homes
- Backdraft through abandoned lower flues. In Medford triple-deckers, sweeps regularly find that only the top-floor unit’s flue is in active use while lower flues sit abandoned and unlined. These cold, open columns create backdraft pathways that pull combustion gases from the active flue into lower units. The symptom gets misdiagnosed as a furnace malfunction until someone cameras the full stack.
- Acidic condensate in oversized coal-era flues. Original flues dimensioned for solid fuel are too large for modern gas appliances. Short on draft, these systems produce condensate that pools and eats mortar. The Mystic River valley’s persistent humidity accelerates this deterioration compared to drier towns at higher elevation.
- Freeze-thaw spalling on exposed crowns and shoulders. Medford’s lower-lying position keeps masonry wetter through winter. Repeated wet-freeze cycles erode mortar joints and spall brick crowns noticeably faster here, shortening the interval between tuckpointing jobs versus what the same chimney age might require in Winchester or Belmont.
- Skipped adjacent flues during partial inspections. Roof access between tightly spaced triple-deckers leaves little staging room, and crews that don’t camera every flue in a shared stack miss deterioration that threatens active units. We inspect the full structure, not just the convenient flue.
Pricing for Chimney Cleaning & Sweep in Medford, MA
Here’s what chimney cleaning and sweep services cost in Medford’s market:
- Level 1 Inspection + Standard Sweep: $189-$249
- Level 2 Camera Inspection: $289-$449
- Creosote Removal (with inspection): $189-$289; Stage 3 glazed add $75-$150
- Soot Removal (with inspection): $189-$279
- Annual Maintenance Plan (sweep + Level 1): $159-$199/year when prepaid
Factors that move price within these ranges: flue height above roofline (triple-decker stacks run taller), access difficulty (tight Medford lots with limited ladder staging), and whether multiple flues in a shared stack require inspection. We provide no-hassle upfront pricing before booking - the estimate number matches the invoice number. Senior and veteran discounts of 5% apply automatically. Call (781) 404-3793 for your exact quote; estimates are free.
We Also Serve Cities Near Medford
Our crews work throughout the Mystic River valley and surrounding communities. We regularly schedule Chimney Cleaning & Sweep in Medford alongside appointments in Malden, Winchester, Melrose, and Belmont. The same technicians, the same camera documentation, the same written guarantee apply across every city we serve.
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 - Chimney Cleaning & Sweep in Medford
Yes - and any sweep who doesn’t camera every flue in your shared stack is leaving a hazard unexamined. In Medford’s triple-deckers, abandoned lower flues commonly create backdraft pathways that pull combustion gases from active flues into units with no fire lit. We inspect and document the full structure, not just the flue you use. Call (781) 404-3793 to schedule a Level 2 inspection.
That’s acidic condensate deterioration, and it’s epidemic in Medford’s oversized coal-era flues. Original flues built for solid fuel are too large for modern gas appliances, so draft is weak and condensate pools instead of venting. The Mystic River valley’s extra humidity accelerates the chemical damage. A Level 2 inspection with camera documentation confirms the extent; liner resizing with DuraFlex or HeatShield resurfacing often solves it. Call (781) 404-3793 for a free estimate.
If you heat with gas or oil and the chimney serves that appliance, yes - annually. Combustion byproducts deteriorate flue liners and mortar regardless of fireplace use, and Medford’s shared-stack triple-deckers add cross-contamination risk that annual camera inspection catches early. If your chimney is completely unused and capped, a biennial exterior check may suffice; we’ll tell you honestly which category fits your situation. Call (781) 404-3793 to discuss your specific setup.
Your abandoned lower flue is likely pulling combustion gases from your neighbor’s active flue through cracks in shared flue walls - a pattern we find repeatedly in Medford’s multi-unit stacks. The “furnace problem” is actually a chimney pressure imbalance. Only full-stack camera inspection reveals the pathway. We documented exactly this on a two-family off Mystic Valley Parkway: cracked clay tile in the active flue, abandoned unlined lower flue, exhaust migrating between units. HeatShield liner installation and capping the dead column fixed it permanently. Call (781) 404-3793 for inspection.
Stage 3 glazed creosote - hard, shiny, nearly glassy - won’t brush off and requires more intensive mechanical or chemical treatment. We identify creosote stage during every inspection and explain before proceeding. In Medford’s older, often-oversized flues where draft runs weak, creosote can harden unevenly in spots that standard brushing misses. Our camera shows you exactly what stage is present and where. Standard removal runs $189-$289; Stage 3 treatment adds $75-$150. Call (781) 404-3793 for an exact quote - estimates are free.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Medford and local communities since 1984.





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