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 Gatos
A chimney sweep in Los Gatos typically costs $179 – $320 for a standard open fireplace, with most appointments taking 45 – 90 minutes. If you’re in 95030, 95031, or 95032, we can usually book you within the same week, and mountain cabins off Summit Road in 95033 are no problem with our self-contained HEPA setups. Call (833) 593-5179 and we’ll get you on the calendar.

We work in Los Gatos every week, from the Victorians along University Avenue to the ranch homes near Blossom Hill Road and up into the unincorporated hills. Our Chimney Sweep crew knows the housing stock here because we’re in it constantly. That matters more in Los Gatos than in most towns, because the older homes downtown have chimney geometry that doesn’t show up on modern construction, and a sweep who doesn’t know what to look for will miss it.
Why Chimney Sweep Blossom Valley Is Los Gatos’s Preferred Chimney Sweep Company
Our team is led by Armando Alvarado, and the crews that show up in Los Gatos are the same people who handle fireplace systems in San Jose, Cambrian, and the rest of the South Bay. We have swept hundreds of Los Gatos chimneys across 95030’s downtown Craftsman bungalows, 95032’s ranch-style neighborhoods, and the wood-stove cabins in 95033. When a Los Gatos homeowner calls us, they aren’t getting a random tech assigned from a dispatcher who’s never been west of 17.
We work exclusively with professional chimney-trade materials: HeatShield for flue resurfacing, Gelco and Olympia Chimney for caps and crowns, DuraFlex for relining. We keep these products stocked locally, which means a Los Gatos repair doesn’t stall while parts ship from somewhere else. If a cracked flue liner needs heat-shield resurfacing in April before fire season, we can do it the same week.
Armando Alvarado runs this business the way a specialist should: one crew handles the sweep, the repair, and the dryer vent. That’s the system your home depends on, and we don’t hand off parts of it to somebody else.
Styles & brands we work with
- Sweep & inspection
- Caps & crowns
- Flue relining
- Masonry repair
- Gas fireplace service
Fireplace Cleaning in Los Gatos
Fireplace Cleaning in Los Gatos homes is typically scheduled once a year if you burn regularly, and it runs $149 – $229 for a standard open hearth in this market. The job involves removing creosote from the smoke chamber and flue liner, clearing ash and soot from the firebox, and checking the damper seal. Homes in Los Gatos that only burn during the winter, especially with Spare the Air no-burn days interrupting use, often need more attention than a weekend ski-cabin fireplace that burns hot and often.
Creosote Removal for Sluggish Drafts
Creosote in a Los Gatos chimney isn’t just soot. It’s a flammable residue that builds fastest when fires smolder or start and stop frequently. Mild climate, intermittent use, and no-burn days create exactly those conditions. A chimney that has a sluggish draft or smells like a campfire on humid days needs a proper creosote removal, not a quick brush pass.
Soot Removal and Damper Check
In an open fireplace, soot removal is the most visible part of the job, but the damper check is what separates a real sweep from a cosmetic one. Older Los Gatos homes, particularly 1920s bungalows with original clay flues, often have dampers that no longer seat fully. If the damper doesn’t seal, cold air drops into the room in winter and conditioned air escapes up the chimney all summer. A basic sweep won’t fix that, but our crew always measures and inspects the damper while the flue is clean enough to see.
Chimney Services in Los Gatos
Chimney Services in Los Gatos go beyond a straight brush-and-go sweep because the housing stock demands it. A standard Level 1 inspection is included with a sweep, and Level 2 inspections with a video camera run $249 – $399 in this market, which is the right choice when a home changes hands, a roof has been replaced, or a shared stack needs to be mapped. The cost of relining with DuraFlex in Los Gatos typically starts around $2,500 and varies with flue height and access, which is why we show you the camera footage before quoting it.
Flue Mapping and Shared-Stack Verification
A lot of Los Gatos chimneys serve more than one fireplace or share a masonry chase with a neighbor’s vent. The only way to know which flue goes where is to map it with a camera. In downtown Los Gatos, where attached Victorians and Craftsman bungalows sit lot-line to lot-line, it’s common to find a shared stack with separate flues, and it’s even more common to find a homeowner who has no idea that’s what they have.

HeatShield Liner Resurfacing
When a flue shows cracked tile joints or spalling from years of heat cycling, a full rebuild is not always necessary. HeatShield liner restoration uses a ceramic coating applied inside the existing flue, and it’s an option most sweep-only companies in Los Gatos can’t offer because they don’t carry the product or hold the certification. Armando Alvarado’s crews do both HeatShield repair and full relining, so you’re not funneled into a rebuild you may not need.
Trusted Brands We Service in Los Gatos
We don’t stock hardware-store pipe. The flue liners, caps, spark arrestors, and termination fittings we use in Los Gatos homes are made by the companies chimney specialists trust: HeatShield for liner restoration, Gelco and Olympia Chimney for caps and crowns, and Famco for venting systems. We keep common sizes on hand and can turn around a cap or damper replacement quickly, because the longer a Los Gatos chimney is left running with a failed cap, the more water and animal damage accumulates. Your chimney system is only as safe as its weakest component, and we use professional-grade materials so that component isn’t the part we installed.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Los Gatos Homes
- Cross-contamination on shared stacks. A downtown Los Gatos neighbor’s gas water heater or furnace vents into the same masonry chase. If those flues share gaps or the geometry has shifted over decades, exhaust and creosote odor push into the flue you think is yours alone. A quick brush-and-go sweep never catches this; a camera inspection does.
- Undersized flues orphaned by original furnaces. In 95030’s oversized 1920s fireboxes, the original coal or wood furnace had its own flue run, and when it was removed, the fireplace was left venting through a flue too small for the firebox. Draft stays weak, dampers won’t seal, and first-degree creosote builds fast on intermittent burning.
- Spark arrestor and cap failure before fire season. Dry, windy summers in the Los Gatos hills and the fire threat from surrounding wildland mean a missing or corroded spark arrestor is a serious hazard. We see caps with rusted screens in 95033 mountain homes every fall, and it’s one of the first things we check.
- Truck-mount access failure on Summit Road. Mountain cabins in 95033 often have no street pull-in for a truck-mounted vacuum unit. If a company isn’t set up with a self-contained HEPA system, the job stalls on arrival. Our crews plan for this before they make the drive up.
Pricing for Chimney Sweep in Los Gatos, CA
A standard chimney sweep in Los Gatos runs $179 – $320 for an open fireplace. A Level 2 camera inspection adds $249 – $399. Creosote removal on a heavily glazed flue may add $100 – $200 depending on buildup. HeatShield liner resurfacing typically falls between $2,000 – $5,000, while full DuraFlex relining starts around $2,500. What moves the number in Los Gatos is access, flue height, and whether the chimney is on a steep pitch or requires roof work from a ladder. We give you the camera footage before quoting any repair, and estimates are free. Call (833) 593-5179 for an exact price.
We Also Serve Cities Near Los Gatos
Beyond Los Gatos, we regularly work in Cambrian, Almaden, the Los Alamitos Creek area, and Blossom Valley. If you’re just over the line from Los Gatos in any direction, we’re still your local crew. Same specialist, same brands, same camera-backed honesty.
Serving Los Gatos, CA – Our Local Coverage Area
We’re based in the Los Gatos 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 Gatos
Yes, and it’s one of the most overlooked hazards in downtown Los Gatos. If your neighbor’s gas water heater or furnace vents into the same masonry stack, exhaust and creosote odors can push into your flue if the interior separation has cracked or shifted. We use a Level 2 camera inspection to map the shared stack and verify what each flue actually serves. If you’re smelling exhaust or your fireplace drafts oddly only when the neighbor’s equipment runs, call (833) 593-5179 and we’ll find out what’s actually in that chase.
In most 95030 homes, smoking after a sweep means the flue is too small for the firebox, and the firebox was oversized for the original furnace setup. A clean flue helps, but if the flue geometry is wrong, smoke still rolls back into the room. We film the interior, measure the firebox-to-flue ratio, and typically fix it by installing a properly sized DuraFlex liner so the damper finally seals and the chimney drafts the way it should.
Yes. We run self-contained HEPA units in 95033 precisely because mountain cabins off Summit Road can’t accommodate truck-mounted vacuums. The setup goes in by hand, and the job gets done the same day. If you’re in a gated or unpaved stretch off Summit Road, we still come, there’s just a bit more planning involved on our end. Call (833) 593-5179 and tell us what your driveway looks like, we’ll plan around it.
Spare the Air no-burn days force intermittent burning, which is worse for creosote than steady hot fires. Every cold start and stop lays down a little more first-degree creosote in the flue, and over a Los Gatos winter that adds up fast. A chimney that would’ve been fine with an annual sweep in a colder climate may need more frequent attention here. If you’ve burned through several no-burn interruptions, call (833) 593-5179 for a free estimate and get it looked at before next season.
Before fire season, a sweep should verify the spark arrestor mesh is intact with no holes larger than the manufacturer’s spec, the cap is secured to the flue with no rust-through, and no bird nesting material is packed against the venting. In Los Gatos, especially in 95033 near the wildland interface, a failed spark arrestor is a fire hazard, not a cosmetic issue. We inspect the cap and arrestor on every sweep and call it out with photos if it needs replacement, because a cap that lets sparks through is not a cap.
If your chimney hasn’t been swept in the last 12 months, or if you’ve been putting off an inspection on a home you bought in Los Gatos, call us at (833) 593-5179 for a free estimate. We’ll send a crew that knows 95030, 95031, 95032, and 95033, and we’ll show you the camera footage before you spend a dollar on repairs.
Written by Armando Alvarado, Owner at Chimney Sweep Blossom Valley, serving Los Gatos and the South Bay.