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.
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AfterFast, Reliable Chimney Cleaning & Sweep Across Medford
A professional chimney cleaning and sweep in Medford typically costs $180-$320 for a standard single-flue service, with Level 2 camera inspections running $280-$450. Most appointments are completed in a single visit, and our Chimney Cleaning & Sweep team schedules Medford homeowners within a few days of calling. You can reach us at (781) 905-8338 - a live person answers, 24 hours a day.
We’ve been dispatching crews to Medford from our Boston office for decades. We know the triple-deckers along Salem Street, the two-families near Wellington Circle, and the old colonials tucked behind Tufts University. These aren’t generic chimneys. Most were built between 1885 and 1940 for coal heat, then converted to oil or gas without anyone resizing the flue or installing a proper liner. That history lives in your walls, and it changes how a sweep should work.
Why Hearthstone Chimney Co. Is Medford’s Preferred Chimney Cleaning & Sweep Company
Medford homeowners call us because we’ve been answering the phone with a live person for over 42 years, and we plan to be here in thirty more. That changes how you treat a customer. Our 90-Day Done Right Promise is in writing, with no arguing - if it’s not right, we come back. Period.
Our technicians are background-checked, uniformed, and trained to document everything. Every Level 2 inspection ends with photos you can see and a plain-English verdict. No jargon, no scare tactics, no recommendation without evidence. We’ve built our reputation in Middlesex County one brick at a time, and Medford is a city we know well.
Dispatch and scheduling are coordinated from our Boston office, but our crews live and work locally. They understand Medford’s specific challenges: the oversized coal flues, the multi-unit chimneys with unclear repair responsibility, the river-valley humidity eating mortar joints from the outside in. That local knowledge means faster diagnosis, more accurate estimates, and no surprises on the bill.
Our Chimney Cleaning & Sweep Services in Medford
Level 1 Inspection
A Level 1 inspection is the visual check every Medford chimney should get annually - accessible portions of the fireplace, flue, and exterior for obvious damage or obstruction. For newer Medford homes or systems that haven’t changed, this is often enough. We charge $180-$240 for a Level 1 paired with a standard sweep. But for Medford’s pre-1940 housing stock, we typically recommend stepping up to Level 2.
Level 2 Inspection
Level 2 is where we run a camera up the flue and document what we find. In Medford, this isn’t optional for most homeowners - it’s essential. The overwhelming majority of Medford’s residential stock dates from roughly 1885 to 1940, dominated by brick and wood-frame triple-deckers, colonial revivals, and two-family homes. Most have original masonry chimneys that have never had a code-compliant stainless liner installed. Multi-flue chimneys serving multiple units in a single structure are the norm, complicating both cleaning and the assignment of repair responsibility between landlords and tenants.
Our Level 2 inspection in Medford runs $280-$450 depending on flue count and accessibility. You get photos of every finding, a written verdict, and recommendations tied to evidence you can see for yourself. Nothing is suggested without camera proof. That’s the Keystone Standard.
Creosote Removal
Creosote builds up in every wood-burning system, but in Medford it builds up faster and differently than homeowners expect. Oversized coal-era flues venting modern oil or gas appliances produce weak draft and accelerated creosote condensation. The problem gets diagnosed as a cleaning issue instead of a flue-sizing one. We see this constantly in triple-deckers off Mystic Valley Parkway and in the older two-families near Medford Square.
Our creosote removal service runs $220-$340 for a standard flue, including the sweep. Heavy third-degree glazed creosote - the tar-like deposit that can’t be brushed off - requires chemical treatment and a return visit, typically $380-$520. We’ll tell you which you have before we start, not after.
Soot Removal
Soot removal addresses the powdery carbon residue from oil and gas appliances, common in Medford’s converted heating systems. Soot is less flammable than creosote but more corrosive to mortar and metal. In Medford’s unlined or clay-tile flues, it accelerates deterioration from the inside while river-valley humidity attacks from the outside. We remove soot with professional-grade brushes and HEPA-contained vacuums, starting at $200 for a single flue.
Annual Sweep
Our annual sweep program is built for Medford homeowners who want the job done once, done right, and forgotten. We schedule your sweep before burning season, perform a Level 1 or 2 inspection based on your system’s age and condition, and document everything. Annual sweep customers in Medford receive priority scheduling and the permanent 5% Senior and Veteran discount. A typical annual sweep runs $180-$280.
Fireplace Cleaning
Fireplace cleaning in Medford focuses on the firebox, smoke chamber, and damper assembly - the areas where creosote concentrates and where most chimney fires start. We clean with hand brushes, rotary tools, and industrial vacuums, inspecting for cracked firebrick, damaged throat dampers, and smoke chamber defects. Fireplace cleaning starts at $240 and includes debris removal.
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.
Trusted Brands We Service in Medford
We don’t use builder-grade substitutes. Our trucks carry professional-grade materials from Gelco, Olympia Chimney, Famco, and Copperfield - the brands that professional sweeps trust for liners, caps, crowns, and repair compounds. For Medford homeowners, this means faster turnaround. When we find a failing cap on a Mystic Avenue triple-decker or a cracked crown in South Medford, we don’t order parts and make you wait two weeks. We stock the common sizes and configurations, and we install them before we leave. Done right - and we stand behind it.
Common Chimney Cleaning & Sweep Problems We See in Medford Homes
- Unlined clay-tile flues venting modern appliances. Medford’s 1885-1940 triple-deckers and two-families were built with single oversized coal flues, so most original chimneys here have never had a code-compliant stainless flue liner. The multi-flue stacks are shared by separate units, which makes repair responsibility a landlord-tenant question, not just a masonry one. Sweeps who don’t run a camera can’t prove a liner is needed, and homeowners pay for work nobody can justify.
- Spalling brick and crumbling mortar from river-valley humidity. Medford sits in the Mystic River valley, where low-lying neighborhoods along the river and Mystic Lakes experience higher ground-level humidity than surrounding upland suburbs. Crowns and joints that might last 20 years in a drier microclimate often need repointing in 10-12 years here. Homeowners near Riverside Avenue regularly attribute the damage to age alone.
- Weak draft and back-drafting in oversized flues. A flue built for a coal furnace is too large for a modern oil boiler or gas insert. The exhaust cools too fast, creosote condenses on the walls, and draft fails to carry gases up and out. The symptom is a “dirty chimney.” The real problem is flue sizing. Cleaning helps; resizing solves it.
- Multi-unit chimneys cleaned as single systems. A triple-decker has three flues, three appliances, and often three owners. Cleaning one flue doesn’t address the others. Separating repair responsibility between landlord and tenant requires documentation - photos, written findings, clear scope. We provide all three.
Pricing for Chimney Cleaning & Sweep in Medford, MA
Here’s what Medford homeowners actually pay:
- Standard single-flue sweep with Level 1 inspection: $180-$240
- Level 2 camera inspection (includes sweep): $280-$450
- Creosote removal, standard buildup: $220-$340
- Heavy glazed creosote treatment: $380-$520
- Soot removal (oil/gas systems): $200-$280
- Annual sweep program enrollment: $180-$280
- Fireplace cleaning (firebox, smoke chamber, damper): $240-$320
Multi-flue structures, roof access complications, and heavy buildup increase cost. We give you the number before we start. The number on the estimate is the number on the invoice. No surprises.
Current offers: $50 off any repair over $250. Free second opinion on any written estimate. $89 Seasonal Tune-Up. Permanent 5% Senior and Veteran discount. Call (781) 905-8338 for a free estimate - estimates are free, and there’s no obligation.
We Also Serve Cities Near Medford
Our crews work throughout Middlesex County, including Somerville, Winchester, Belmont, and Lexington. Each city has its own housing stock and chimney challenges, and we adjust our approach accordingly. But Medford’s concentration of 1880s-1920s triple-deckers and river-valley humidity makes it a unique market for chimney work.
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, we can clean multiple flues in a single visit, and we do this regularly in Medford’s triple-deckers and two-families. Each flue is a separate system with its own appliance, buildup pattern, and potential problems. We inspect and document each one individually, and we separate findings by unit so landlords and tenants know exactly what they’re responsible for. Call (781) 905-8338 to schedule - we’ll scope the work and give you upfront pricing for the full building.
Spalling in Medford is often caused by Mystic River valley ground humidity, not age. Low-lying neighborhoods near Riverside Avenue and the Mystic Lakes experience higher ambient moisture than drier suburbs, which accelerates mortar-joint deterioration and drives water into brick faces. The freeze-thaw cycle pops the surface off. A water-repellent treatment applied after proper repointing can extend chimney life significantly. We identify the moisture source with a camera inspection before recommending any repair. Call (781) 905-8338 for a free estimate.
You need a camera inspection to know for certain. Many Medford chimneys have unlined or partially lined clay-tile flues that were sized for coal, not modern oil equipment. An oversized flue produces weak draft, accelerated creosote condensation, and potential carbon monoxide spillage. But we don’t recommend a stainless liner without camera evidence you can see. Our Level 2 inspection documents the flue condition, measures the sizing mismatch, and gives you a plain-English verdict. Call (781) 905-8338 to book.
Every chimney in Medford should be inspected annually, regardless of use. Oil and gas appliances vent into these systems year-round, and Medford’s river-valley humidity attacks masonry continuously. Even “barely used” fireplaces can harbor blockages from animal nesting or deteriorated flue tiles. An annual Level 1 inspection catches problems before they become expensive repairs. Call (781) 905-8338 to schedule - estimates are free.
Yes. Third-degree glazed creosote - the hard, tar-like deposit on firebox walls and smoke chambers - requires chemical treatment to soften before mechanical removal. We apply a professional-grade modifier, return after the recommended dwell time, and rotary-clean the surfaces. This service runs $380-$520 in Medford depending on severity and accessibility. We’ll assess the glaze level during your initial inspection and tell you exactly what it will take. Call (781) 905-8338 for an exact quote - estimates are free.
On Riverside Avenue in the flats near the Mystic River, our tech swept an 1890s two-family and pulled first-degree creosote off the firebox walls and smoke chamber, but the real finding was on the exterior: spalling brick and crumbling mortar joints caused by river-valley ground humidity, not age, which the owner had assumed. We showed him the camera footage of the unlined clay-tile flue his oil boiler was venting into - a stack sized for coal, not a modern appliance - then wrote up HeatShield resurfacing and a water-repellent treatment, with every recommendation tied to a photo he could see. He called us back the next season for his other property.
That’s how we work. Photos you can see. A plain-English verdict. Every recommendation tied to evidence. In writing, no arguing. Done right - and we stand behind it.
Call (781) 905-8338 today for a free estimate. A live person will answer, 24 hours a day, 7 days a week. We’ll be there when we say.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Medford and local communities since 1984.