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 Somerville
A Chimney Cleaning & Sweep in Somerville typically costs $180-$320 for a standard annual service on a single flue, with Level 2 camera inspections running $280-$450 depending on stack height and access. Most jobs are completed in one visit, and our crews are dispatched from our Boston office with routes that put us in Winter Hill, East Somerville, or Magoun Square within the hour during business hours.
We’ve been working on Somerville chimneys for decades. The triple-deckers on Highland Ave, the converted two-families near Davis Square, the old brick stacks off Broadway - we’ve seen them all. These aren’t suburban fireplaces with one flue and a clean liner. They’re century-old masonry stacks, often carrying two or three original flues with no liner at all, sized for coal or oil furnaces that were scrapped forty years ago. That’s why a sweep here isn’t just a brush-and-vacuum job. It’s a structural inspection of a shared system where one unit’s problem can become another unit’s carbon-monoxide exposure.
We answer the phone live, 24 hours a day, at (781) 905-8338. No app. No callback queue. A real person.
Why Hearthstone Chimney Co. Is Somerville’s Preferred Chimney Cleaning & Sweep Company
Somerville homeowners and landlords know us because we document what we find. Every Level 2 inspection ends with photos you can see on our monitor and a plain-English verdict - no jargon, no scare tactics, no pushing work you can’t verify. Our Chimney Cleaning & Sweep in Somerville reputation was built one triple-decker at a time.
We’ve served local communities for over 42 years. That longevity matters in a city where landlords cycle through cheap sweeps every season and tenants never know who’s actually responsible for the chimney. We’re still here because we stand behind our work. The 90-Day Done Right Promise - Krafted right, Every time, Your home first, Standing behind it - is in writing with no arguing. If it’s not right, we make it right.
Our technicians are background-checked and uniformed. Most jobs finish in a single visit. The price we quote upfront is the price on the invoice. We’ve been burned by contractors too. We don’t operate that way.
Our Chimney Cleaning & Sweep Services in Somerville
Level 1 Inspection
A Level 1 inspection is the minimum annual check for a chimney that’s been in regular service with no changes to the appliance or fuel type. In Somerville, we perform these on single-flue systems, typically in owner-occupied units of triple-deckers or in converted condos where the flue serves one appliance and one appliance only. We examine the readily accessible portions of the chimney exterior, interior, and connecting appliance. For Somerville’s 1880-1930 housing stock, even a Level 1 includes a visual check of the crown and cap - because freeze-thaw spalling from November through March is not a question of if, but when, on these old brick stacks. If we spot damage, we’ll discuss whether Somerville Chimney Cap & Crown repair is needed.
Level 2 Inspection
This is where Somerville’s triple-decker architecture makes Level 2 inspections essential, not optional. We run a camera the full length of the flue and into the smoke chamber, looking at the flue liner (or confirming there isn’t one), the mortar joints between wythes, and the condition of the brick. In a triple-decker stack with two or three flues, we’re also checking whether the mortar separating one unit’s flue from the next has degraded to the point of allowing carbon-monoxide crossover.
On a triple-decker off Highland Ave near Winter Hill, our tech ran a camera down the left flue serving the first-floor gas furnace and found the brick wythe between it and the second-floor flue had eroded to a half-inch at the smoke chamber - with visible daylight spalling at the crown above. We capped and sealed the top, rebuilt the crown mortar, and installed a HeatShield liner in the furnace flue so that unit’s combustion gases could no longer backdraft into the tenant’s living room. The landlord watched the whole camera feed on our monitor before we quoted a dollar of work.
Level 2 inspections in Somerville run $280-$450. If you’re buying or selling a triple-decker, if you’ve changed appliances, or if you’ve never had a camera inspection - this is the service you need.
Creosote Removal
Creosote builds up in wood-burning and pellet systems, and Somerville’s cold winters push residents toward supplemental heat sources. The problem: many of these stoves or inserts vent into flues that were sized for coal or oil furnaces, not modern wood appliances. The flue runs too cool, condensation forms, and creosote accumulates in stages - powdery, flaky, or glazed. Glazed creosote is a chimney fire waiting to happen.
We remove creosote with professional-grade brushes, chains, and chemical treatments where necessary. But we don’t just sweep and leave. We check whether the flue is properly sized for the appliance venting into it. An undersized or unlined flue with a new wood stove is a mismatch that sweeping alone cannot fix. We’ll show you the camera evidence and explain your options - no upselling, just facts.
Soot Removal
Gas and oil appliances produce soot, not creosote, and in Somerville’s triple-deckers we often find soot-choked flues where the furnace was replaced but the flue was never resized or lined. Soot is acidic. It eats mortar. In a multi-flue stack, a soot-heavy flue can accelerate deterioration of the shared wythe, increasing crossover risk for the neighboring unit.
Our soot removal includes rotary brushing and HEPA vacuuming, with debris contained and removed. We inspect the flue for proper draft after cleaning - because a clean flue that still doesn’t draft is a flue that needs a liner, not another sweep.
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 Somerville
We work exclusively with professional-grade materials from brands that hold up in New England’s freeze-thaw cycles: Gelco caps and accessories, Olympia Chimney liners and components, and Famco termination products. We stock common sizes for Somerville’s typical flue dimensions, which means faster turnaround when your triple-decker needs a cap replacement or Somerville Chimney Liner & Rebuild work. No builder-grade substitutes. No waiting three weeks for parts that don’t fit. The right material for the job, installed correctly - and we stand behind it.
Common Chimney Cleaning & Sweep Problems We See in Somerville Homes
- Shared mortar wythes between triple-decker flues go uninspected. A single flue gets swept and the other one or two flues in the same stack are never checked, leaving the mortar barrier between units unpoliced - the exact path by which one tenant’s combustion gases backdraft into a neighbor’s apartment.
- Freeze-thaw spalling destroys crowns and mortar joints. Eastern Massachusetts freeze-thaw cycles - sub-freezing nights followed by thaws throughout November-March - steadily erode Somerville’s 1880-1930 brick chimney stacks. A sweep that only brushes the flue without checking the crown and cap leaves the next winter’s water intrusion unaddressed.
- Modern appliances vent into coal or oil-sized flues. Adjacent-unit appliances vent into original flue dimensions that are undersized for modern gas or wood inserts, producing weak draft that a simple sweep cannot fix. The flue needs a correctly sized liner, not another brushing.
- Missing or failed flue liners in century-old stacks. Most Somerville triple-deckers were built with no original flue liner at all. Combustion gases and condensation attack bare brick directly, accelerating deterioration and increasing the risk of carbon-monoxide leakage into living spaces or neighboring units.
Pricing for Chimney Cleaning & Sweep in Somerville, MA
| Service | Typical Range in Somerville |
|---|---|
| Annual Sweep - Single Flue (Level 1 included) | $180 - $260 |
| Annual Sweep - Multi-Flue Stack (per flue) | $160 - $220 per flue |
| Level 2 Camera Inspection | $280 - $450 |
| Creosote Removal - Stage 2 (flaky) | $220 - $340 |
| Creosote Removal - Stage 3 (glazed) | $340 - $520 |
| Soot Removal with Rotary Brushing | $200 - $300 |
| Chimney Cap Installation (Gelco/Olympia) | $380 - $650 |
| Crown Repair / Rebuild | $450 - $850 |
What moves the price? Stack height above the roofline, access (some Somerville triple-deckers have narrow alleys or zero setback), and the condition of what we find. A flue with no liner needs a different conversation than a flue with a cracked clay liner. We give you the camera evidence before we quote repair work. Nothing is recommended without photos you can see for yourself.
We also offer a permanent 5% Senior and Veteran discount, and $50 off any repair over $250. Estimates are free. Call (781) 905-8338.
We Also Serve Cities Near Somerville
Our crews work throughout the metro area, including Somerville‘s neighboring communities of Medford, Belmont, Brookline, and Winchester. Each city has its own housing stock and chimney characteristics - Medford’s triple-deckers share Somerville’s challenges, while Belmont and Winchester see more single-family systems with different failure modes. We adjust our inspection approach accordingly.
Serving Somerville, MA - Our Local Coverage Area
We’re based in the Somerville 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 Somerville
Yes. Each flue is a separate venting system and must be inspected individually. In Somerville’s triple-deckers, the mortar wythe separating flues is often the only barrier against carbon-monoxide crossover between apartments, and that wythe cannot be evaluated without inspecting every flue in the stack. We frequently find one flue in acceptable condition while the adjacent flue has eroded mortar that puts both units at risk. Call (781) 905-8338 to schedule inspections for all flues - estimates are free.
Somerville’s housing stock is 80-90% built between 1880 and 1930, with triple-decker stacks that were sized for coal or oil and typically lack any original flue liner. Eastern Massachusetts freeze-thaw cycles accelerate mortar deterioration on these aging brick structures. Add modern gas appliances or wood inserts venting into flues never designed for them, and you have a combination of age, climate stress, and appliance mismatch that suburban single-family systems simply don’t face. Annual inspection is the minimum prudent interval here.
Carbon-monoxide crossover occurs when combustion gases from one unit’s appliance migrate through degraded mortar into an adjacent flue and backdraft into a neighboring apartment. This is a Somerville-specific risk because the city’s dominant housing type - the triple-decker - stacks two or three flues in a single chimney with only mortar separating them. When that mortar fails, there is no mechanical barrier. We’ve documented this on camera in Winter Hill and East Somerville. It’s why we inspect every flue in a shared stack, not just the one that called.
No. We never recommend work without camera evidence you can see on our monitor, explained in plain English. The industry’s worst upselling happens on older chimneys where the homeowner has no way to verify claims about “unsafe” conditions. We show you the crack, the missing mortar, the eroded wythe - then we quote. No photos, no recommendation. That’s our standard on every Somerville job.
Usually not without modification. Most Somerville triple-decker flues were sized for coal or oil furnaces, not wood stoves. Wood requires a hotter, faster draft than many of these old flues can provide. An undersized or unlined flue with a wood stove will accumulate creosote rapidly and may not vent properly. We run a Level 2 camera inspection to measure the flue, assess the liner situation, and determine whether a correctly sized stainless liner is needed. The sweep alone is not enough. Call (781) 905-8338 for an inspection - we’ll show you exactly what you have.
Ready to schedule? A live person answers our phones 24 hours a day, 7 days a week. Call Hearthstone Chimney Co. at (781) 905-8338 for your free estimate on Somerville Fireplace Services, including chimney cleaning and sweep services in Somerville. We’ll be there when we say. Done right - and we stand behind it.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Somerville and local communities for over 42 years.