Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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.
Fast, Reliable Chimney Sweep Across Los Altos
Most chimney sweeps in Los Altos run between $189 and $329 for a standard cleaning with a Level 1 inspection, and we can usually get to your home within a few days of your call. If you own one of the larger Los Altos properties with multiple fireplaces or a wood stove on a second flue, expect the job to land closer to $279 – $389 depending on creosote buildup and access. We’re the Chimney Sweep team from Ashby Chimney San Jose, and we know Los Altos homes well enough to tell you the price before we roll the truck. Call (669) 266-5073 and a real person answers, any hour.
Why Ashby Chimney San Jose Is Los Altos’s Preferred Chimney Sweep Company
We’ve been cleaning chimneys since 2002, and Los Altos homeowners keep calling us back because we do what we say we’ll do. Nathan Corliss runs our crew, and he built the company around a simple rule: a written price before any work starts, a written guarantee when the work is done, and a real arrival window we actually hit. Too many Los Altos residents have been burned by a technician who never showed or a price that doubled at the door. That’s not how we operate, and we put it in writing every single time.
Every Ashby technician is background-checked and in uniform, so when you open your door on a Tuesday morning, you know exactly who’s walking in. Our Los Altos customers tell us the same thing: the phone gets answered by a person, not a voicemail tree, and the number on the invoice matches the number we quoted at the door. If a covered repair fails inside the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it’s been part of the Kingswell Way since day one.
We service the whole of Los Altos, from the flat streets near downtown up into the hills where driveways get steep and chimneys get tall. Dispatch runs out of our San Francisco Bay Area office, but the crews live local and know the difference between a 1960s masonry chimney in The Country Club area and a mid-century metal flue off El Monte Road. That local knowledge changes how we inspect, how we clean, and what we tell you to watch for.
Styles & brands we work with
Chimney Cleaning in Los Altos
Chimney cleaning in Los Altos means removing creosote and soot from the flue liner (the clay or metal tube that vents combustion gases out of your home) so your fireplace burns safely and drafts properly. Most Los Altos homeowners need this every year or two, especially in homes around The Country Club where original fireplaces from the 1950s and 1960s see regular use from November through February. A standard chimney cleaning in Los Altos runs $189 – $329, and it includes a visual inspection of the firebox, damper, and accessible flue.
We also check the chimney cap and crown while we’re up there. In Los Altos, uncapped flues invite more than rain. Squirrels and raccoons find their way in, and a nest partly blocking a flue is a carbon monoxide hazard you won’t smell until it’s too late. If we find one, we’ll show you photos and quote the cap installation as a separate line item before we do anything.
Creosote and Soot Removal
The creosote you get from burning oak or eucalyptus in a Los Altos fireplace is not the same as what you’d get from pine in the Sierras. It’s often denser, stickier, and harder to remove once it reaches second or third degree. Our rotary whip system gets it out without damaging the liner, and we’ll tell you plainly whether you’re looking at a routine cleaning or something closer to a glaze removal job.
Annual Sweep and Maintenance
If you burn more than a cord of wood per season or have a second fireplace upstairs, an annual sweep is the cheapest insurance you’ll ever buy for this house. We book annual maintenance for a lot of Los Altos clients on a recurring schedule, so they never have to think about it. Same price each year, same written guarantee each visit, and the Kingswell 365-Day Done Right Promise stands behind every one.
Fireplace Cleaning in Los Altos
Fireplace cleaning in Los Altos goes beyond the flue. It’s the firebox, the smoke chamber, the damper assembly, and the hearth, all of which collect ash, soot, and sometimes the debris that critters drag in. Most Los Altos fireplace cleanings run $159 – $249 as a standalone service, and many homeowners bundle it with a chimney sweep for a combined price that saves a little money over booking them separately.
We take the same approach every time: inspect first, explain what we found, and give you a written quote before any work begins. If your firebox has cracked refractory panels or your damper is warped, you’ll hear it from us with the evidence in hand, not as a surprise upsell at the end of the job. And when we leave, the hearth is cleaner than we found it. That’s a point of pride for the crew.
Gas Fireplace and Insert Cleaning
A lot of Los Altos homes have converted their original wood-burning fireboxes to gas inserts over the years, and those still need cleaning. Soot clings to the glass, dust builds up on the burner, and the venting needs to be checked for obstructions. We clean gas fireplaces and inserts throughout Los Altos, and we’ll check the log set and pilot assembly as part of the service.
Smoke Chamber and Damper Care
The smoke chamber is the part most people never see, and it’s where creosote hides in older Los Altos fireplaces. We brush it clean and inspect the damper frame, because a bent damper from a raccoon climbing through is more common in the hills than most homeowners would believe. If it’s damaged, we quote the Fireplace Repair - Los Altos separately and show you exactly what we’re seeing.
Trusted Brands We Service in Los Altos
We don’t carry whatever happened to be in the van. Our repairs and installations use professional-grade materials from chimney-trade suppliers like HeatShield, Gelco, and Olympia Chimney. That means resurfaced flue liners, stainless caps, and dampers that actually hold up through a Los Altos winter. Because we stock common parts for the Los Altos market, we can often complete a cap replacement or damper repair in the same visit rather than making you wait weeks for an order. When a HeatShield resurfacing is the right call, Nathan will talk you through why, what it costs, and how long it’s expected to last before we ever pick up a brush.
Common Chimney Sweep Problems We See in Los Altos Homes
- Wildlife nests in uncapped flues. Los Altos Hills has a dense oak and redwood canopy, and squirrels, raccoons, and birds treat an open chimney like a hollow tree. We treat uncapped flues as a wildlife-intrusion hazard first and a creosote job second, and we always check for nesting material before we start brushing.
- Moisture-damaged flue liners. Los Altos’s cool, wet winters push rain into chimneys that have lost their crown seal, and that water freezes and thaws against clay tiles. By the time you see spalling, the liner is already compromised, and a chimney fire is a real risk the next time you light a hot fire.
- Third-degree creosote glaze. In older homes around The Country Club with original fireplaces, years of smoldering fires and occasional green wood produce a hard, tarry glaze that a standard brush can’t remove. This one requires rotary cleaning or chemical treatment, and we’ll tell you which before we start.
- Gas insert conversions hiding old problems. Many Los Altos homes converted original wood-burning fireboxes to gas years ago, but the old flue remains. Condensation from the gas insert can mix with leftover creosote and turn acidic, eating away at the liner from the inside. We inspect these flues during every cleaning, conversion or not.
See the difference
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AfterPricing for Chimney Sweep in Los Altos, CA
Here’s what Los Altos homeowners can expect to pay in 2026, and we want you to have these numbers before you ever pick up the phone. A standard chimney sweep with a Level 1 inspection runs $189 – $329 for a single flue. Fireplace cleaning alone runs $159 – $249. A Level 2 inspection, which we recommend before buying a home or after any chimney fire, runs $249 – $399 and includes a camera scan of the entire flue. If you have two fireplaces or a wood stove on a separate flue, the combined sweep runs $279 – $389. What changes the price in Los Altos is creosote condition, roof pitch, and whether we’re pulling out a nest. You’ll get a written quote before any work starts, and that’s the price you pay. Call (669) 266-5073 for a free estimate.
We Also Serve Cities Near Los Altos
Our crews cover Los Altos and the surrounding communities the same way: written pricing, real arrival windows, and a live person answering the phone. We regularly serve Mountain View, Stanford, Palo Alto, and Menlo Park with the same Chimney Sweep standards we bring to Los Altos. If you’re in one of those towns and need a sweep, the same number works: (669) 266-5073.
Serving Los Altos, CA - Our Local Coverage Area
We’re based in the Los Altos 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 About Chimney Sweep in Los Altos
Because the dense oak and redwood canopy in Los Altos Hills makes uncapped chimneys prime nesting sites for squirrels, chipmunks, and birds, and a nest-filled flue is a carbon monoxide and fire hazard even if you never light a fire. We check for wildlife intrusion on every visit, burned wood or not, and we’ll show you photos of what we find.
We document it with a camera, explain that standard brushing won’t remove a hard tar glaze, and quote a rotary or chemical treatment before we begin. In one Los Altos Hills home, our tech removed a third-degree creosote glaze from a two-flue masonry chimney after smoke backed into the living room. The flue liner showed spalling at the smoke chamber, so we installed a HeatShield resurfacing system and a stainless chimney cap designed to keep redwood duff and curious squirrels out. Your situation may be different, but you’ll know the cost before we touch it.
Once a year is right for most Los Altos homes with two appliances, though the gas insert flue can often go every two years if it’s a direct-vent unit. The wood-burning fireplaces need annual attention, especially if you burn oak regularly. We’ll set up an annual schedule so you don’t have to remember, and the written guarantee covers every visit.
Yes, and we do it often. Gas inserts still produce soot and dust, and the flue needs to be checked for condensation and acid attack, especially if the original wood flue was left in place. We clean the glass, the burner, the logs, and the venting, and we’ll inspect the old liner for damage the conversion may have hidden.
Rust and corrosion at the flue joints, usually accelerated by winter moisture getting past a failing cap or flashing. Metal flues from the 1950s through the 1970s were often installed without the corrosion allowances we’d use today, and once rust starts, the flue can leak combustion gases into the house. We inspect these with a camera and quote repairs or replacement in writing before any work starts.
Get Your Los Altos Chimney Inspected Before Winter
If it’s been more than a year since your last sweep, or you’ve noticed smoke backing into the room, a smell like a damp campfire, or evidence of critters on the roof, call us. We’ll give you a straight answer and a written price before we touch a thing. Ashby Chimney San Jose serves all of Los Altos, and Nathan Corliss stands behind every job with the Kingswell Guarantee and the 365-Day Done Right Promise. Call (669) 266-5073 for a free estimate.
Written by Nathan Corliss, Owner at Ashby Chimney San Jose, serving Los Altos with chimney sweep, inspection, and repair services since 2002.