Chimney Cleaning in Waltham - Checked, Photographed, Then Priced
The appliance and the flue are inspected and photographed together before anything is quoted, because a fireplace problem is usually a flue problem. Written price, safety findings included.
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Areas We Proudly Serve
Serving Waltham, MA - Our Local Coverage Area
We're based in the Waltham area and know this community well. Use the map below to see our service coverage - if you're nearby, we can almost certainly help.
The Smart Choice For Chimney Cleaning
Evidence Before Recommendations
Every sweep includes a camera inspection and a photo report. If we find something, you see it before we quote it - no repair is ever recommended on our word alone.
Licensed & Insured
Background-checked, certified technicians who meet every local requirement.
Upfront Pricing
Clear written estimates before any work begins - no hidden fees, ever.
Guaranteed Work
Every repair backed by our workmanship warranty and satisfaction guarantee.
What Our Customers Are Saying
"Booked a sweep, and he told me it did not need one yet and to call back next season. Charged me the inspection fee and nothing else."
"The crown was cracked and taking water. He repaired it rather than quoting a rebuild, which the previous company had pushed hard for."
"The cap keeps the birds out now, which after two springs of scratching noises above the bedroom is worth every penny."
"Creosote buildup was worse than I realized. He measured it, put a camera up to show me the glazing on the flue, and was honest that we were closer to a chimney fire than I wanted to hear."
"Drop cloths everywhere, a HEPA vac running the whole time, and not a speck of soot on the carpet. I had been dreading the mess for nothing."
"Second property I have had them at. Both times the tech showed me photos from inside the flue before quoting anything."
"Level two inspection before we bought the house. The report was detailed enough to use as a negotiating point and he walked me through every photo in it."
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Chimney Cleaning Service Across the Waltham Area
We Are the Waltham Team for Hearthstone.
Certified sweeps, level-2 camera inspections, masonry repair by people who actually know mortar. Hearthstone talks like a craftsman and documents like an engineer: every inspection ends with photos you can see and a plain-English verdict.
Same training, same parts, same pricing practice, and the same 90-Day Done Right Promise - delivered by people who live here.
Visit Hearthstone →Part of the Keystone Family.
Keystone is a family of home-service brands held to one written standard, and Hearthstone is the chimney cleaning company in it. One promise stands behind every trade, in every town.
Expert Chimney Cleaning Repair and Installation Services
Every job on this list is handled by trained, background-checked technicians working to one national standard, priced upfront from a free estimate.
Chimney Sweeping
A full flue sweep under containment, clearing creosote and soot from the firebox all the way to the cap.
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Free Chimney Estimates
We inspect first and quote the whole job. You see what we found and what it costs before we start.
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Chimney Inspection
Camera inspection of the liner, crown, cap and flashing, with photos of anything that needs attention.
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Chimney Repair and Relining
Stainless relining, crown resurfacing, cap and damper replacement, and masonry repointing done to last.
Learn More →Premium, Long-Lasting Chimney Parts
The part decides how long the repair lasts. Here is what we fit, and what the cheap version costs you later.
Chimney Liners
The liner is the pipe inside the chimney that carries smoke and combustion gas out of the house. Nearly every chimney safety question comes back to it.
We install stainless steel liners sized to the appliance, insulated where the code calls for it, in a continuous run from the connector to the cap.
Aluminum liner is the cheap option and it is only rated for certain gas appliances. Put it behind anything hotter and it corrodes, pinholes, and leaks combustion gas into the chase.
Chimney Caps
The cap is the lid on the chimney. It is what keeps rain, animals and stray embers where they belong.
We fit stainless steel caps with a full mesh spark screen and a lid wide enough to shed water clear of the crown below it.
Galvanized caps rust through in a few winters and the mesh rots out first. Once the screen is gone, birds nest in the flue and rain runs straight down onto the damper.
Dampers
The damper seals the chimney when there is no fire. A bad one is an open window in your roof for the other fifty weeks of the year.
We install top-sealing dampers with a silicone gasket that closes against the crown, operated by a cable that runs down to the firebox.
The old cast throat damper sits down in the smoke chamber and never truly seals. Warped by heat and packed with soot, it leaks conditioned air out of the house every day.
Crown Sealant
The crown is the concrete slab at the top of the chimney. Hairline cracks in it are how water gets into the masonry in the first place.
We resurface the crown with a flexible elastomeric coating that bridges hairline cracks and keeps moving with the slab through every freeze and thaw.
A skim of ordinary mortar over the cracks is the fast patch. Mortar is rigid, so it splits again in the first hard freeze and the water goes right back in.
Chimney Flashing
Flashing is the metal that ties the chimney into the roof. Almost every ceiling stain near a chimney starts right here.
We install two-part step and counter flashing in aluminum or copper, cut into a mortar joint and sealed, so the roof and the chimney can move independently.
The fast fix is a heavy bead of roof cement smeared over the joint. It dries, shrinks and cracks within a year or two, and the leak comes back worse than before.