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 professional chimney sweep in Somerville typically runs $180-$320 for a standard Level 1 cleaning with inspection, while a Level 2 camera inspection runs $320-$480. Most sweeps are completed in a single visit, and our crews are dispatched from our Boston office with same-week scheduling available throughout Somerville. Call (857) 392-4709 to book - a live person answers, 24 hours a day.
We’ve been working on Somerville chimneys for decades. We know the triple-deckers along Broadway and Winter Hill, the tight lot lines in East Somerville, and the particular headache of coordinating access across three separately-tenanted floors when the chimney stack is shared. Our Chimney Cleaning & Sweep team doesn’t just brush out soot; we verify flue separation, document liner condition with a camera, and give you a plain-English verdict you can see for yourself.
Why Hearthstone Chimney Co. Is Somerville’s Preferred Chimney Cleaning & Sweep Company
Somerville homeowners call us because we’ve built a reputation on doing the thing right and standing behind it. Our 90-Day Done Right Promise is in writing, with no arguing - if it’s not right, we come back. That’s been our standard for over 42 years.
Our Boston office coordinates dispatch to Somerville daily, so we’re familiar with parking restrictions near Assembly Row, the narrow driveways off Highland Avenue, and the access challenges of triple-decker porches. Technicians are background-checked and uniformed, and most jobs finish in a single visit with no-hassle upfront pricing. The number on your estimate is the number on your invoice.
We answer the phone with a live person, every hour of every day. No voicemail. No callback queue. No app. Russell Haines built this company on the K.E.Y.S. code - Krafted right, Every time, Your home first, Standing behind it - and that still governs how we treat every call from Somerville.
Our Chimney Cleaning & Sweep Services in Somerville
Level 1 Inspection
A Level 1 inspection is the baseline for any Somerville chimney that’s been in regular use without changes to the system. We examine the readily accessible portions of the chimney structure, flue, and appliance connection. In Somerville’s triple-deckers, this also means a quick check that your flue is properly separated from your neighbors’ - a step that simply doesn’t exist on a single-family suburban chimney. A Level 1 inspection with sweep runs $180-$260.
Level 2 Inspection
Level 2 is where we bring in the camera, and in Somerville, it’s often the right starting point. The city’s housing stock - wood-frame triple-deckers built between roughly 1885 and 1930, with a smaller share of brick row houses and Victorian single-families - frequently contains oversized original flues designed for coal heat, now serving low-temperature gas appliances. That mismatch accelerates condensation, flue-liner spalling, and creosote stratification on remaining masonry surfaces. A camera lets us show you exactly what’s happening inside your flue, not tell you about it.
On a triple-decker off Broadway in East Somerville, our tech found the second-floor flue had been capped years earlier without documentation, and a third-floor gas fireplace insert was drafting smoke down through a cracked common flue wall into the unit below. We ran a Level 2 inspection with a camera, showed the homeowner the spalling terra cotta liner and the breached separation on screen, and installed a HeatShield liner in the affected flue before sweeping. Level 2 inspection runs $320-$480 in Somerville.
Creosote Removal
Creosote builds in stages. First-degree creosote is flaky soot - straightforward to remove with standard brushes. Second-degree becomes shiny, hardened flakes, often from restricted airflow or burning unseasoned wood. Third-degree creosote is the dangerous stuff: a thick, tar-like glaze that can fuel a chimney fire above 2,000 degrees. In Somerville’s older, often unlined or partially-lined flues, third-degree creosote is more common than it should be because the oversized coal-era flue runs too cool for modern gas appliances, letting combustion byproducts condense on the walls.
We remove creosote with mechanical brushing, rotary systems for glazed buildup, and chemical treatments when necessary. We document the before and after with photos. Creosote removal as a standalone service runs $220-$380, depending on severity and accessibility.
Soot Removal & Annual Sweep
An annual sweep removes soot, clears obstructions like bird nests or fallen mortar, and gives us a yearly look at how your system is aging. In Somerville, the long heating season - roughly October through April - combined with dozens of freeze-thaw cycles each winter means mortar joints open and brick on chimney crowns cracks, especially on the tall triple-decker stacks that get minimal sun exposure between buildings. Annual inspection is a genuine safety necessity here, not an upsell. Annual sweep with Level 1 inspection: $180-$260.
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 stock parts and materials from professional-grade brands - DuraFlex, HeatShield, and Famco among them - so most repairs don’t wait on shipping. When a Somerville triple-decker needs a liner replacement or a crown rebuild, we’re not substituting builder-grade materials to hit a price point. HeatShield’s cerfractory foam resurfacing system, for example, lets us restore a deteriorating clay flue liner without a full tear-out, which matters in buildings where access is tight and tenants can’t be displaced for days. We carry the right materials for the job, and we install them to manufacturer spec.
Common Chimney Cleaning & Sweep Problems We See in Somerville Homes
- Flue separation failure in shared triple-decker stacks. Somerville’s triple-deckers pack three or four flues into one shared brick stack, so a crack in one apartment’s terra cotta liner can backdraft CO into a neighbor’s kitchen a floor above or below. We verify separation before we sweep.
- Oversized coal-era flues mismatched to modern gas appliances. These buildings frequently underwent fuel conversions - coal to oil, then oil to natural gas - leaving flues designed for high-heat coal draft now serving low-temperature gas. The result is condensation, spalling, and creosote stratification that a standard brush won’t address without understanding the underlying mismatch.
- Undocumented flue caps blocking proper draft. In East Somerville and Winter Hill, sweeps regularly find triple-decker chimneys where a previous owner capped the middle-floor flue without documenting it. Tenants on the third floor light a gas fireplace insert, and smoke traces down through a cracked common flue wall into the second-floor unit. We identify these before cleaning begins.
- Freeze-thaw damage to chimney crowns and mortar. Somerville sits squarely in the New England freeze-thaw belt. The tall, tightly packed triple-decker stacks get minimal sun exposure between buildings, so ice opens mortar joints and cracks crowns relentlessly. Annual inspection catches this before water enters the stack.
Pricing for Chimney Cleaning & Sweep in Somerville, MA
| Service | Typical Range in Somerville |
|---|---|
| Level 1 Inspection + Sweep | $180-$260 |
| Level 2 Camera Inspection | $320-$480 |
| Creosote Removal (standalone) | $220-$380 |
| Annual Sweep Package | $180-$260 |
| Fireplace Cleaning | $150-$220 |
What moves the price: accessibility (roof height, tight porches, need for ladder work), severity of creosote buildup, and whether we’re coordinating access across multiple units in a triple-decker. We give you the full price before we start - no surprises on the bill. Seniors and veterans receive a permanent 5% discount. Call (857) 392-4709 for a free estimate.
We Also Serve Cities Near Somerville
Our crews work throughout the metro area from our Boston office. If you’re in Somerville or nearby, we cover Cambridge, Medford, Everett, and Chelsea with the same scheduling and the same standards. Same live person answering the phone, same camera documentation, same 90-Day Done Right Promise in writing.
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
We need access to the unit we’re sweeping and the roof or attic to inspect the full stack, but we don’t need to enter every apartment unless we’re verifying flue separation across all units. In practice, we often coordinate with landlords or property managers to inspect the common structure once, then schedule individual unit sweeps as tenants need them. If we find a breach in a common flue wall, we’ll document it with photos and recommend next steps - but we won’t recommend work without camera evidence you can see. Call (857) 392-4709 to discuss access for your building.
This is a classic triple-decker flue-separation failure, and we see it regularly in East Somerville and Winter Hill. A previous owner may have capped or partially blocked the second-floor flue without documenting it, or the common flue wall between units has cracked. Your third-floor exhaust is finding a path down through that breach into the second-floor unit. We run a Level 2 camera inspection to locate the exact breach, show you the footage, and repair the separation - typically with a HeatShield liner or stainless steel insert - before any sweeping proceeds. Call (857) 392-4709 and we’ll prioritize this; CO backdraft is not a wait-and-see situation.
Even minimal burning produces combustion byproducts, and in Somerville’s older housing stock, the bigger problem is often deterioration of the chimney structure itself. The freeze-thaw cycles here open mortar joints and crack crowns whether you burn daily or twice a winter. Gas appliances venting into oversized coal-era flues produce acidic condensation that eats terra cotta liners year-round. Annual inspection catches structural damage and liner deterioration before they become CO hazards or expensive rebuilds. The sweep itself may be light; the inspection is what keeps you safe. Call (857) 392-4709 to schedule - estimates are free.
First-degree creosote is loose, sooty, and brushes out easily - normal for well-seasoned wood and good draft. Third-degree creosote is a thick, hardened, highly flammable glaze that can ignite at temperatures above 2,000 degrees and crack a flue liner or start a structure fire. In Somerville’s oversized, often unlined flues, third-degree creosote forms more easily because the flue runs too cool for efficient gas venting, letting vapors condense and bake onto the walls. We remove it with rotary mechanical systems and, when necessary, chemical treatments that break the glaze before brushing. We’ll show you the camera footage so you know exactly what stage you’re dealing with. Call (857) 392-4709 for an inspection.
Because we show you the camera footage before we recommend anything. In Somerville’s triple-deckers, the industry’s worst upselling happens when a sweep claims “deterioration” without documentation and quotes a full reline. We don’t do that. Our Level 2 inspection produces photos you can see, a plain-English verdict, and a clear explanation of what can wait versus what can’t. Sometimes a HeatShield resurfacing restores a liner for a fraction of replacement cost. Sometimes a full stainless steel reline is genuinely necessary. You’ll know which because you’ll see the evidence yourself, and you’ll get our recommendation in writing with no pressure to book immediately. That’s how Russell Haines built this company, and that’s how we still operate. Call (857) 392-4709 - estimates are free, and you’ll see what we see.
Ready to get your Somerville chimney inspected and swept the right way? Call (857) 392-4709 now. A live person will answer, schedule you for a time that works, and give you an upfront price before we arrive. We’ll show you photos, explain what we found, and stand behind our work with the 90-Day Done Right Promise in writing. No arguing. No surprises. Just the thing done correctly.
Written by Russell Haines, Owner at Hearthstone Chimney Co., serving Somerville and local communities since 1984.