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, MA typically runs $189-$329 for a standard Level 2 inspection with sweep, and most appointments are scheduled within 3-5 business days during peak season. Our crews are in Medford weekly, working the triple-deckers along Boston Avenue, the two-families near Medford Square, and the converted Victorians in West Medford. Call (781) 649-9326 to book - estimates are free, and every job starts with a written price before anyone touches your flue.
Medford’s housing stock is unlike the single-family suburbs around it. The dense concentration of pre-WWII triple-deckers and two-family homes means one aging masonry chimney stack routinely serves multiple flues across multiple units, originally sized for coal or oil furnaces that have since been converted to gas. That leaves oversized, often unlined flues that backdraft, accumulate dangerous creosote, and trap condensation from the damp Mystic River valley air. A routine sweep here almost always surfaces a multi-unit liner and sizing problem that neighboring single-family-heavy suburbs rarely present. Our Chimney Cleaning & Sweep team has handled this exact Medford condition since 2009.
Why Level Two Chimney Waltham Is Medford’s Preferred Chimney Cleaning & Sweep Company
We’ve completed more than 38,000 chimney inspections and cleanings since 2009, and a significant share of those have been in Medford’s dense, older housing. Dispatch and scheduling are coordinated from our Boston office, but crews serve Medford locally - not dispatched from Worcester or the North Shore.
Medford customers find us through word-of-mouth in the triple-decker market: landlords with multiple units need one company that can document every flue in a shared stack, not just the one that happened to smoke last week. Our 365-Day Done Right Promise applies to every job, and our Free Second Opinion on any written estimate means property managers can verify competitor quotes without paying twice.
Background-checked, uniformed technicians carry license information on every page and every job. You’ll get a text when your tech is en route, a written scope and price before work starts (Haven Standard Clause 1), and a documented photo record when it’s done (Clause 4). Live phone support runs 24 hours a day, 7 days a week - a real person, not a voicemail tree.
Our Chimney Cleaning & Sweep Services in Medford

Level 1 Inspection
A Level 1 inspection is a visual examination of the readily accessible portions of your chimney and fireplace - the firebox, damper, and exterior. In Medford, this is appropriate for a single-flue gas fireplace that’s been regularly maintained, or as an annual check between Level 2 inspections. We charge $149-$189 for a Level 1 with basic sweep in Medford. It does not include camera access to the flue interior, so we won’t catch hairline liner cracks or hidden third-degree creosote buildup.

Level 2 Inspection
This is our default for Medford, and for good reason. A Level 2 inspection follows NFPA 211 standards and includes a camera scan of the entire flue interior, from firebox to crown. We document every foot with photo evidence. In Medford’s multi-unit stacks, this is where we find the problems that matter: the adjacent flue that’s never been inspected, the oversize liner creating backdraft, the spalled brick feeding moisture into the stack. Level 2 with full sweep runs $249-$329 in Medford. Clause 4 of the Haven Standard requires this photo record on every job - we’ve done it since 2009, before insurers or regulators asked for it.

Creosote Removal
Creosote is the tar-like residue that builds up when wood or fossil fuels burn incompletely. Medford’s damp valley conditions slow flue drying, which accelerates creosote accumulation - especially in oversized flues running at lower temperatures after gas conversions. We classify creosote by stage: first-degree (sooty, brush-removable), second-degree (shiny flakes, requires rotary tools), and third-degree (glazed, tar-like, often requires chemical treatment). Third-degree creosote removal in Medford runs $389-$549 depending on flue length and accessibility. Left untreated, it ignites at approximately 451°F and burns at temperatures exceeding 2,000°F.

Soot Removal
Soot is the powdery carbon residue from complete combustion. In Medford, we see heavy soot accumulation in capped oil-boiler flues that haven’t been swept since conversion - sometimes decades of material packed solid. Soot removal is typically included in our standard sweep, but heavily obstructed flues require additional labor and disposal. Expect $289-$429 if we’re clearing a long-neglected boiler flue in a triple-decker stack.

Annual Sweep
The NFPA recommends annual inspection for all chimneys, and sweep as needed based on use and fuel type. In Medford, we push hard for annual service because the multi-unit, multi-fuel history of these stacks means conditions change faster than in newer, simpler systems. Our annual sweep with Level 2 inspection is $249-$329. We schedule recurring customers ahead of peak season - October through December fills fast.

Fireplace Cleaning
Fireplace cleaning addresses the firebox, smoke chamber, and damper assembly - the areas you can see, plus the ones you can’t. Medford’s older fireplaces often have smoke chambers with corbelled brick that traps creosote and restricts draft. We clean and inspect these with the same camera documentation as the flue above. Fireplace cleaning with Level 2 inspection runs $249-$329.

What happens when you call
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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.
Before
AfterTrusted Brands We Service in Medford
We source materials through Haven’s buying network to keep customer prices honest: Gelco caps and flashing kits for the storm-exposed crowns we see along the Mystic River, Olympia Chimney liner systems for Medford’s oversized flue conversions, and Famco dampers and termination fittings. Parts are stocked regionally, so most Medford repairs don’t wait on shipping. For custom copper work on historic Medford properties, we use Copperfield components. Every installation carries the 365-Day Done Right Promise and a written warranty before work starts.
Common Chimney Cleaning & Sweep Problems We See in Medford Homes

- Storm-driven water past displaced caps. Wind off the Mystic River valley pushes rain past loose or missing chimney caps, then water tracks down the flue and shows up as a ceiling stain. The owner blames the fireplace. We pull the cap, inspect the crown and flashing, and document the actual entry point with photos.
- Freeze-thaw spalling on shared triple-decker stacks. Medford’s low-lying position traps moisture, and repeated freeze-thaw cycles through a typical Boston metro winter crumble the soft lime mortars used in 1890-1940 construction. By late February, we’ve usually booked a dozen crown and flashing rebuilds in West Medford alone.
- Multi-unit stacks with unswept, hidden flues. A cleaning on one tenant’s fireplace flue in a Boston Avenue triple-decker often triggers discovery that the adjacent oil-boiler flue, capped but never swept, is packed with generations of soot and debris. One flue clean; four flues present; three potentially hazardous.
- Backdraft from oversized, unlined flues after fuel conversion. Original coal or oil flues in Medford’s older housing are too large for modern gas appliances. The flue never gets hot enough to establish draft, condensation accelerates creosote buildup, and carbon monoxide can spill into living spaces. Cleaning helps; relining fixes it.
Pricing for Chimney Cleaning & Sweep in Medford, MA
| Service | Typical Range in Medford |
|---|---|
| Level 1 Inspection with basic sweep | $149-$189 |
| Level 2 Inspection with camera scan and sweep | $249-$329 |
| Third-degree creosote removal | $389-$549 |
| Heavy soot clearing (long-neglected flue) | $289-$429 |
| Multi-flue stack inspection (per additional flue) | $89-$129 |
What moves the price: flue length (three-story triple-deckers cost more than two-story), accessibility (steep roof pitch, proximity to power lines), creosote stage, and whether we’re documenting multiple flues in a shared stack. We deliver a written price, written scope, and written warranty before any work starts - Haven Standard Clause 1, no exceptions. Estimates are free. Call (781) 649-9326.
We Also Serve Cities Near Medford

Our crews work regularly in Everett, Cambridge, Winchester, and Boston - but Medford’s triple-decker density and multi-flue stacks are a distinct specialty. If you’re searching for Chimney Cleaning & Sweep in Medford, we’re the team that understands what one chimney serving three or four units actually means for your inspection and maintenance schedule.
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

No. Each flue is a separate passageway with its own fuel history, liner condition, and creosote accumulation, and each requires individual inspection and cleaning. We charge per flue, with reduced rates for additional flues inspected during the same visit. In Medford, we regularly find that one tenant’s fireplace flue was swept recently while the adjacent boiler flue hasn’t been touched since the 1980s conversion. Call (781) 649-9326 for a written estimate covering every flue in your stack.
Do not light a fire until the flue has been inspected. Storm-driven rain off the Mystic River commonly pushes past loose caps, cracked crowns, or failed flashing on Medford’s older masonry, and water in the flue can hide behind soot as steam until it reaches dangerous temperatures. Check for visible cap displacement or crown cracks from the ground, then call us for a Level 2 inspection with camera documentation. We’ll identify the water entry point, clear any creosote that absorbed moisture, and give you a written repair scope before burn season. Call (781) 649-9326 - we’ll prioritize storm calls.
Backdraft in Medford usually traces to one of three conditions: an oversized flue left from a coal or oil conversion that never gets hot enough to establish draft; a partially blocked flue from creosote or soot accumulation; or negative pressure from modern airtight construction competing with the chimney. Cleaning removes blockages and improves draft marginally, but an oversized, unlined flue typically needs relining to correct the underlying condition. Our Level 2 inspection measures flue dimensions against appliance specifications and documents the mismatch with photos. Call (781) 649-9326 for an exact diagnosis.
A Level 1 inspection is visual and accessible-only; a Level 2 adds internal camera scan of the entire flue, attic and basement access, and inspection of all connected appliances. Any Medford home with a fuel conversion, property transfer, or storm damage needs Level 2. The camera finds what visual inspection cannot: hairline liner cracks, hidden third-degree creosote, and the condition of flues in multi-unit stacks that haven’t been examined in decades. Level 2 with sweep runs $249-$329 in Medford. Call (781) 649-9326 to schedule.
Medford sits in the Mystic River valley, which traps moisture and prolongs damp conditions compared to higher-elevation neighbors. That moisture penetrates the soft lime mortars used in 1890-1940 construction, then freezes and expands during repeated cold snaps. By late February, we’ve typically found spalled brick faces, crumbled mortar joints, and cracked crowns across West Medford and the neighborhoods near Medford Square. Annual inspection catches this progression before water enters the flue system. Call (781) 649-9326 to book before the freeze-thaw cycle starts.
Storm-driven rain off the Mystic had pushed water past a loose cap on a triple-decker near Boston Avenue, and the West Medford landlord called us about a ceiling stain, not the chimney. Our tech pulled the cap, found the flashing pulled loose and a hairline crown crack feeding seepage into the shared stack, then swept the tenant’s fireplace flue, removed first-degree creosote, and re-set a Gelco cap with a properly lapped flashing kit. One flue was clean; the adjacent capped oil-boiler flue, swept as a surprise add-on, came back packed with soot no one had touched since the conversion. That’s a typical Medford job for us. Written price first. Photo record after. Clause 4 of the Haven Standard, every time.
Written by Corrine Halstead, Owner at Level Two Chimney Co., serving Medford and the Boston metro since 2009.





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