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.
Chimney Company in Duarte, CA
Chimney repair in Duarte usually means one of two things: a cracked clay tile flue in a 1960s ranch home, or wind-damaged masonry and missing spark screens on a hillside house in 91008. The Santa Ana winds that rake the San Gabriel foothills scour mortar joints, drop debris into flues, and expose problems that a calm-climate inspection would miss entirely. Firebrick Chimney Sweep handles the full repair scope, including relining, crown rebuilding, cap replacement, and flashing work, so a problem found during a sweep gets fixed without a referral to a second contractor. Call (866) 520-4943 for a straight diagnosis and a written quote.
Why Duarte Homes Are Different
Duarte sits where the San Gabriel Mountains meet the flatlands, and that position shapes every chimney we work on. The older sections in 91010 are dense with post-war tract homes and mid-century ranches built with original clay tile flues. Those flues are now 50 to 70 years old, and many were sized for fireplaces that burned hotter and dirtier than what today’s homeowners expect. We regularly find hairline cracks in those tiles, often from decades of thermal cycling and the occasional chimney fire that went unnoticed.
The hillside homes in 91008 tell a different story. Wind exposure up there is constant, especially during Santa Ana events. We check exterior chases for wind-scoured mortar, rusted chase covers, and missing spark arrestor screens after every wind season. A dry Mediterranean climate means creosote sits and hardens into a glaze for months instead of being flushed out by humidity. When the first cold snap hits in late fall, that glaze expands against already-stressed flue walls. That’s when cracks open. That’s when homeowners call us. Duarte is not a place where annual sweeping is optional. It’s a place where the local conditions actively work against an ignored chimney.
Styles & brands we work with





Our Main Duarte Services
Most Duarte homeowners contact us for one of two jobs: a thorough chimney sweeping that accounts for wind-driven debris and hardened creosote, or a dryer vent cleaning that clears the lint buildup that Duarte’s dry air makes worse. Both are fire-prevention services, and both expose deeper issues we can repair in the same visit.
Chimney Sweep in Duarte
A proper sweep in Duarte starts with the cap. Santa Ana winds fill spark arrestors with leaves, twigs, and ash, and a blocked cap changes the draft and pushes smoke back into the house. Inside the flue, we remove the glazed creosote that forms during the long dry season, then run a camera to check for cracks in the original clay tiles. If we find damage, we show you the footage and quote the repair on the spot. That’s the difference between a sweep-only outfit and a company that can actually fix what it finds. See the full scope on our Chimney Sweep in Duarte page.

Dryer Vent Cleaning in Duarte
Duarte’s dry air pulls moisture out of lint quickly, which sounds helpful but actually makes the buildup lighter, fluffier, and more easily airborne. A restricted dryer vent in a 91010 tract home with a long vertical run can become a fire hazard faster than homeowners expect. We clean the full run from the dryer to the exterior termination, clear blockages at the wall cap, and check for the kind of sagging or disconnected duct that hides behind laundry room walls. Details are on our Dryer Vent Cleaning in Duarte page.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Chimney Repair in Duarte
Chimney repair in Duarte is driven by two local realities: the original clay tile flues in 91010’s mid-century housing stock are reaching the end of their service life, and the wind-exposed hillside homes in 91008 lose mortar and flashing faster than the valley floor homes do. Firebrick handles the full repair scope, from Chimney Repair diagnostics through structural masonry, liner replacement, and cap work. We don’t sweep, find a crack, and hand you a referral. We fix it.
Chimney Cap Installation
Signs you need it
Rainwater staining on the fireplace hearth, bird or rodent noise from the flue, or a draft that seems to push smoke back into the room.
What it costs in Duarte
Chimney cap installation typically runs $300 – $700 in Duarte, depending on the flue size and whether a custom chase cover is required.
How we do it
We measure the flue opening, mount the correct cap with a secure mechanical fastening, and confirm the spark arrestor mesh meets local wildfire-safety expectations.
Chimney Cap Replacement
Signs you need it
Visible rust or corrosion on the existing cap, bent or missing spark arrestor mesh, or water damage that started after a Santa Ana wind event stripped the old cap.
What it costs in Duarte
Expect $250 – $500 for a standard replacement, with larger multi-flue caps or chase covers on hillside homes pushing toward the top of that range.
How we do it
We remove the old cap, inspect the flue tile beneath for damage, and install a properly sized replacement with stainless steel hardware.
Chimney Liner Installation
Signs you need it
A camera inspection that shows cracked or missing clay tiles, or a home inspector’s report flagging an unlined flue before a sale in Duarte.
What it costs in Duarte
Chimney liner installation in Duarte typically ranges from $2,500 – $5,000, shaped by the flue length and whether the existing clay tiles must be broken out first.
How we do it
We specify the correct diameter liner, insulate where the local code calls for it, and install the system from the crown down with a top plate and cap.
Chimney Flashing Repair
Signs you need it
Water stains on the ceiling near the chimney chase, curling or lifting flashing, or dampness in the attic during the winter rains.
What it costs in Duarte
Flashing repair generally runs $300 – $800 in Duarte, depending on whether we’re patching a section or replacing the full step and counter flashing.
How we do it
We cut out the failed material, install new flashing with proper overlap, and seal the joint with high-temperature, weather-resistant sealant.
Chimney Crown Repair
Signs you need it
Cracks in the concrete crown, missing chunks of the crown’s outer edge, or spalling brick near the top of the chimney.
What it costs in Duarte
Crown repair typically costs $400 – $1,000 in Duarte, and a full crown rebuild on a large hillside chimney can run higher.
How we do it
We grind out the damaged surface, apply a properly sloped repair mortar or full recast, and finish with a penetrating water repellent.
What Chimney Repair Costs in Duarte
| Item | Typical range in Duarte |
|---|---|
| Chimney cap replacement | $250 – $500 |
| Chimney cap installation | $300 – $700 |
| Chimney flashing repair | $300 – $800 |
| Chimney crown repair | $400 – $1,000 |
| Chimney liner installation | $2,500 – $5,000 |
Do I really need a new liner, or can the old one be patched?
A cracked clay tile flue cannot be reliably patched. Once the tiles separate or shift, combustion gases and heat reach the surrounding masonry, and the only safe long-term fix is a properly sized liner system. In Duarte’s older 91010 homes, we show you the camera footage before recommending anything.
How urgent is a cracked chimney crown in Duarte?
A cracked crown lets water into the chimney chase, and once moisture reaches the brick, freeze-thaw cycles and our dry-season heat do the rest. It’s a repair that worsens every year it’s ignored. Call (866) 520-4943 and we’ll tell you if it can safely wait or needs work this season.
Brands We Service in Duarte
We work exclusively with professional-grade chimney products: HeatShield ceramic resurfacing, Gelco chase covers, Olympia Chimney caps, and Famco components. These are not consumer-grade or big-box substitutions. We stock the most common parts for Duarte’s flue sizes and housing types, so most cap and crown work goes on the truck the first day. See our brands for the full line.
See the difference
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AfterPricing for Chimney Company in Duarte, CA
| Service | Typical range in Duarte |
|---|---|
| Chimney sweep (standard fireplace) | $180 – $340 |
| Chimney sweep (gas insert or stove) | $180 – $360 |
| Camera inspection (add-on) | $100 – $200 |
| Chimney cap installation | $300 – $700 |
| Chimney cap replacement | $250 – $500 |
| Chimney flashing repair | $300 – $800 |
| Chimney crown repair | $400 – $1,000 |
| Chimney liner installation | $2,500 – $5,000 |
| Dryer vent cleaning | $100 – $250 |
Hillside homes in 91008 with long chase runs, custom caps, or scaffold-required access push toward the upper end of these ranges. The flue condition in Duarte’s older tract homes also matters: a flue full of glazed creosote takes longer to sweep than a clean one. We quote a firm price before work begins, and the camera inspection report is included with every sweep.
Neighborhoods We Serve in Duarte
We work across all three Duarte ZIP codes, from the valley floor tract neighborhoods to the hillside communities that look out toward the San Gabriel ridgeline. Each area has its own most common findings, but the work is the same: inspect, clean, repair, and make the chimney safe for the next burn season.
- Fish Canyon and the hillside streets of 91008
- The Rancho Duarte and Royal Oaks area
- Downtown Duarte and the older 91010 grid
- The Encanto Parkway and Mountain View corridor
- Valley View and the homes along Huntington Drive
Most Duarte appointments are scheduled within the week, and sweeps in the 91010 tract homes are usually completed in a single visit, including the camera report.
Service Area – Cities Near Duarte
We serve Duarte and the surrounding foothill and valley communities. Homeowners in Bradbury, CA and Monrovia, CA call us for the same wind-driven debris and aging-flue issues we see in Duarte. We also cover the older tract housing in Baldwin Park, CA and Mayflower Village, CA, where original clay tile flues are common. Each area gets the same camera-verified diagnosis and repair capability.
Serving Duarte, CA — Our Local Coverage Area
We’re based in the Duarte 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 Company in Duarte
Most Duarte homeowners get an appointment within a week, and we often batch jobs in the same neighborhood to shorten the wait. During October and November, before burn season peaks, we recommend scheduling two to three weeks ahead. Call (866) 520-4943 for the current schedule.
Most repairs we perform, including cap replacement, flashing, crown work, and liner installation, do not require a city permit. If a structural rebuild or full masonry tear-down is ever needed, we’ll flag the permit requirement before work begins. You’ll know the full scope before we start.
Yes. Duarte’s housing stock mixes original masonry fireplaces in the 91010 tract homes with prefab and gas inserts in the newer 91008 hillside builds. We sweep, inspect, and repair both types, and the camera report applies either way. The diagnosis is always specific to what’s actually on your roof, not a generic checklist.
Firebrick Chimney Sweep has served Duarte since 2012. If your chimney has not been inspected this year, or a home inspector flagged something on a recent report, call (866) 520-4943 for a free estimate and a straight answer.
What happens when you call
- 1A real person answersNo phone trees — talk to a local chimney cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you — the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Duarte Customers Say
"Liner was cracked in two places. He walked me through the repair options honestly, including the one that was cheaper for him and better for me."
— Lucia Ramirez"Something came loose about a month after the work. Called them, and they were back out the next day and fixed it at no charge. Didn't argue, didn't try to bill me for the trip."
— Ebony Bryant"Level two inspection before we bought the house. The report was detailed enough to use as a negotiating point and he explained every photo in it."
— David Wong