No upsells. No surprises. Just a code-ready chimney, done right the first time. Serving Cambridge homes since 2012.
Comprehensive chimney sweep for Cambridge homes and businesses.
Cambridge’s dirtiest chimneys cleaned—creosote, soot, and debris gone.
Learn more →Cambridge homes with damaged flues get a safe, code-compliant rebuild.
Learn more →Cambridge fireplaces clogged with ash and debris get a deep clean.
Learn more →Cambridge’s high-moisture wood creates thick, tarry creosote—we remove it completely.
Learn more →We hold ourselves to the highest standards so you can hire with total confidence.
We’re the only Cambridge chimney sweep with active MA CSL #CS-12345 and $2M liability coverage. No subcontractors, no fly-by-night crews—just our licensed techs in Dorian Chimney Co. trucks. Cambridge’s building department knows our name, and so do the fire marshals who inspect our work.
Cambridge winters don’t wait. If your flue’s clogged or your damper’s stuck, we’ll be at your door the same day—no weeks-long wait. Call before 10 AM and we’ll be sweeping by noon. We keep two crews on standby in Cambridge to handle emergencies before the next nor’easter hits.
Your estimate is your final price—no surprise charges for extra inspections or “recommended” repairs. We only suggest work that’s truly necessary, and we’ll show you the evidence on-site. If you want to defer a repair, we’ll give you a clear timeline and cost so you can budget it.
Cambridge’s fire chiefs refer homeowners to us because we leave chimneys cleaner and safer than the competition. We follow NFPA 211 standards to the letter, and our work passes Cambridge’s annual fire safety inspections without a single citation.
At Dorian Chimney Co, we cut through the smoke and mirrors of the chimney industry with no-nonsense, checklist-driven service you can trust. Serving Cambridge homes since 2010, we’ve seen every myth from ‘a little creosote never hurt anyone’ to ‘chimney sweeping is just a scam to sell inspections.’ Our crew doesn’t sell—we inspect, clean, and repair based on what your chimney actually needs, not what pads someone’s wallet. We show up with the right tools, the right training, and zero upsell pressure, because a clean chimney shouldn’t cost you a second mortgage.
"Dorian swept my chimney last month and found a hairline crack in the flue that I’d missed for years. They fixed it the same day and charged half what the big companies wanted. No mess, no hassle—just a clean chimney and peace of mind."
"After Cambridge’s last nor’easter, my crown was leaking like a sieve. Dorian rebuilt it in two days with a warranty that actually matters. The crew even shoveled my walkway when they left—small things that add up to real service."
"I burned seasoned oak all winter and ended up with a chimney full of tar. Dorian’s thermal cleaning got rid of it without tearing apart my flue. My draft is perfect now, and my insurance agent approved the clean report."
"I called three companies before Dorian—everyone else wanted to upsell me. Dorian gave me a straight price, did the job, and followed up to make sure I was happy. Cambridge needs more businesses like this."
"My stove’s damper was stuck shut, and Dorian freed it without breaking anything. They even showed me how to check it myself next time. Local, honest, and actually cares about safety—not just the sale."
"After a chimney fire scare, I needed a full rebuild. Dorian handled the permits, rebuilt the smoke chamber to code, and got me a 10-year warranty. Their work passed Cambridge’s inspection with zero issues."
Expert local advice for Cambridge homeowners.
Spotting cracks in your Cambridge MA chimney crown? Learn the 7 warning signs, local repair costs, and when to call Dorian Chimney Co before water damage or chimney fires strike.
Read more →Selling or buying a home in Cambridge? A Level 2 chimney inspection is non-negotiable. Here’s exactly what to check before you sign.
Read more →Cambridge homeowners: learn the real costs, timing, and steps for annual chimney sweeping to avoid fire hazards and save on repairs.
Read more →Pick a slot on our calendar or call our Cambridge line before 10 AM for same-day service. We’ll confirm your address, ask about your stove/fireplace type, and send a licensed tech to your Cambridge home within hours.
Our tech arrives with a pre-inspection checklist, measures your flue, and takes baseline photos. We’ll explain what we see—cracks, creosote thickness, or obstructions—before we start work. No surprises, just a clear plan.
We suit up in Tyvek, set up a drop cloth, and get to work. Every sweep includes a Level 1 inspection, creosote removal, and a final pressure test. If we spot damage, we’ll show you the issue and give you a repair quote on the spot.
We vacuum the last speck of dust, hand you a same-day clean report with photos, and email your insurer if needed. Your chimney’s ready for winter—guaranteed. We’ll follow up in 30 days to make sure everything’s still drawing right.
Proudly serving Cambridge and these nearby communities.
That persistent campfire odor is almost always trapped creosote or moisture in your flue. Cambridge’s humid air and occasional temperature swings push moisture into the chimney, where it mixes with soot to create a musty stench. A Level 2 inspection and a thorough sweep will clear the buildup, while installing a chimney cap and a top-sealing damper can prevent future issues. We’ve eliminated this smell for dozens of Cambridge homes in just one visit.
North Cambridge’s older homes and tighter neighborhoods often mean chimneys work harder to draft properly, especially with wood-burning stoves. Wind patterns off the Charles River can also push smoke back into the flue, accelerating creosote buildup. We’ve seen North Cambridge chimneys with enough creosote to fill a 5-gallon bucket—your friend’s Somerville home might draft better due to newer construction or different fuel types.
Chimney cleaning logs can knock loose some loose soot, but they don’t remove the thick, tar-like creosote that’s the real fire hazard. Cambridge’s CSIA-certified sweeps use rotary brushes and high-powered vacuums to clear every inch of your flue, including the dangerous glaze that forms on the liner. A log won’t spot a cracked liner or a blockage in the smoke chamber—both of which we’ve found in Cambridge homes that relied on logs alone.
A Level 1 inspection is a visual check from the fireplace to the roof, while a Level 2 includes a camera inspection of the entire flue and smoke chamber. Cambridge’s older homes often need Level 2s because hidden cracks or blockages can’t be seen from the outside. The extra cost covers the camera equipment and the time to review footage, but it’s the only way to spot issues like a collapsed flue liner or a nest blocking the chimney in Cambridge’s historic neighborhoods.
A chimney cap stops debris but not water—especially in Cambridge, where wind-driven rain can still seep through gaps in the masonry or around the flue liner. We’ve found leaking chimneys in Cambridge homes with caps because the flashing around the base was rotted or the liner wasn’t properly sealed. A full inspection and re-caulking of the flashing usually solves it, but sometimes a liner replacement is needed if the leak’s been going on for years.
No. A cracked liner in Cambridge’s older homes is a ticking time bomb—it can allow heat to transfer to combustible walls or let carbon monoxide seep into your living room. We’ve seen liners crack from freeze-thaw cycles in Cambridge winters, and once they’re compromised, they only get worse. Replacing a liner isn’t cheap, but it’s cheaper than a chimney fire or a CO poisoning incident that could have been prevented.
You can use it immediately after a sweep—just wait for the dust to settle and the fireplace to cool. Cambridge’s CSIA-certified sweeps leave your flue spotless, so there’s no risk of soot or debris igniting when you light the next fire. The only exception is if we found a crack or blockage during inspection; in those cases, we’ll tell you to hold off until repairs are done.
Fast response, upfront pricing, and workmanship guaranteed. Get your free estimate today.