Before the first cold night. Creosote, cap, damper, flue.
A real chimney sweep is a sweep and a safety inspection — not one or the other. We clear the creosote, check the cap and damper, camera-scope the flue liner, and give you one clean report before you light the first fire of the season.
What a real sweep actually covers.
"Chimney sweep" means different things at different companies. At Cal Duct, a single visit covers everything your fireplace needs before burning season — sweep, safety check, and a written CSIA-style inspection. One visit, one flat price.
If we find something that needs repair — a cracked flue tile, a damaged cap, a broken damper — you get photos, a written finding, and a no-obligation quote. We're never incentivized to find problems that aren't there.
Creosote removal, all three levels
Level 1 (flaky), Level 2 (crusted), Level 3 (glazed) — each removed with the right brush and method for the liner material.
Camera-scoped flue liner inspection
Full-length video of your flue — you see what we see. Cracks, spalling, liner separation all documented.
Cap & arrestor check
Cap and spark arrestor condition verified from accessible angles. Missing caps are the #1 reason Bay Area chimneys take on water — if a cap install is needed, it's $99–$199.
Damper & smoke-shelf service
Damper tested for full open/close, smoke shelf cleaned of debris and nesting material.
Written safety report
A dated, photographed Level-1 inspection report — useful for insurance, resale disclosures, and your peace of mind.
Top-down sweep, fully contained, no mess on your hearth.
Our standard sweep is a Level 1 visual inspection — fireplace, firebox, smoke shelf, damper, and visible flue. Rooftop work is reserved for cases that specifically need it; most homes don't. If a camera scope of concealed flue areas is needed, that's our Level 2 service.
Fireplace sealed with drop cloths
Living room and hearth protected. Shoe covers on from the front door.
Commercial vacuum at the firebox
Fireplace fully sealed for dust containment. Negative-pressure vacuum captures everything we loosen.
Top-down rotary brushing
Motorized brush runs the visible flue. Creosote and debris fall into the sealed smoke shelf for capture.
Firebox, smoke shelf, damper cleaned
Firebox walls scraped, smoke shelf vacuumed, damper fully serviced and tested.
Level 1 visual inspection
Visible flue condition, damper operation, firebox integrity — all documented with photos.
Written report, same day
Photo-inclusive Level 1 inspection report texted and emailed the same afternoon.
Sweep, inspect, cap, patch — published prices.
Most Popular · Annual Service
$169 sweep + Level 1 inspection
Full chimney sweep, fireplace cleaning, and Level 1 visual inspection — all in one visit. Plus a free dryer vent inspection while we're onsite. The Level 1 inspection fee is absorbed into the sweep price — you're never billed for both.
Level 1 Visual Inspection Only
$139
Inspection-only visit — no sweep. If we find cleaning is needed and you authorize it on the same visit, the $139 inspection fee is credited toward the $169 sweep. You pay $169 total — never both.
Credit applies same visit only
Book inspectionLevel 2 Camera Inspection + Sweep + Cleaning
$749
Full camera scope of concealed flue areas, complete sweep, and full cleaning. Chemical treatment for glazed (Level 3) creosote is included when found. Recommended on move-in, post-fire, or any chimney with unknown service history.
Move-in · post-fire · unknown history
Book Level 2Chimney Cap Installation (cap included)
$199
Stainless cap + mesh spark arrestor, installed. Covers the flue against water, debris, and nesting animals.
Chimney Cap Installation (cap provided by you)
$99
Install-only if you've already purchased a cap elsewhere or we're replacing yours.
Fireplace Crack Patching
$49
Hairline and minor firebox crack patching with high-heat refractory mortar. Major repairs require a quote.
What Bay Area homeowners ask us about chimneys.
How often should my chimney be swept?
Annually if you burn regularly, every 2–3 years for occasional use, always on move-in regardless of the previous owner's claims, and any time you've had smoke in the house that wasn't supposed to be there.
Do I need a sweep if I only use my fireplace once or twice a year?
Probably less urgently, but the inspection is more important than the sweep for low-use homes. Cracked flue tiles, animal nests, and cap damage don't care how often you burn. Every 3 years is usually sufficient for light use — scope every time.
Will the sweep make my living room sooty?
No. We work top-down with the damper sealed and a HEPA vacuum running. Drop cloths go down before we start. Most clients can't tell we were there except for the smell of a clean fireplace afterward.
I have a gas fireplace — do I still need this?
Gas fireplaces need a flue and cap inspection annually. No creosote sweep, but we check the liner, the damper, and the cap for blockage — bird nests and debris in gas fireplace flues cause carbon monoxide backup every winter.
What if the scope finds something wrong?
You'll get photos, a written finding, and a no-pressure quote. We're never paid on commission to find repairs. If it can wait, we'll tell you it can wait. If it can't, we'll explain why and what the options look like — including getting a second opinion.
Do I need a Level-1 inspection on move-in?
Yes. A Level 1 visual inspection is recommended any time a chimney changes hands, regardless of age or recent use. For unknown service history or a post-close first use, our Level 2 Camera Inspection + Sweep service is the standard move-in package — it gives you the baseline documentation your home insurance may later ask for.
Before the first fire of the season.
"The camera scope found a cracked clay liner tile we'd been smoking past for who knows how long. Glad we found out this way and not the other way."
Thomas H.
Los Gatos, CA
"Tech showed up in a clean uniform, put drop cloths down, did the sweep and scope in under 90 minutes, and left the hearth cleaner than when he arrived. Report landed in my inbox that night."
Rebecca V.
Menlo Park, CA
"Another quote was three times as much with a bunch of scare tactics. Cal Duct showed me on video what actually needed doing and what could wait. Honest company."
Ken I.
Redwood City, CA
Same-week service across the entire Bay Area.
Don't see your city? Call (408) 655-0609 — we cover most of the Bay Area.
Before the first cold night.
Same-week booking across the Bay Area. Sweep + inspection + report, one flat price.