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 Ontario, CA
Chimney repair in Ontario, CA deals with a specific split in housing stock: mid-century ranch homes with original clay-tile masonry flues, and 1980s-2000s tract builds with factory-made metal fireboxes. Both types show predictable failure patterns after decades of inland heat, winter burn cycles, and Santa Ana wind debris. Glendale Chimney Sweep handles structural masonry repair, liner work, flashing, crowns, and caps across Ontario’s 91762, 91764, 91798, and 91758 ZIP codes. Call (833) 467-6493 when you need a technician who can tell you exactly what’s wrong and exactly what it costs to fix.
Why Ontario Homes Are Different
Ontario sits far enough inland that summer temperatures routinely climb past 100°F, then winter nights drop into the 30s. That thermal swing is hard on masonry. Clay tile flue liners in the older downtown neighborhoods, along Holt and Euclid, have spent forty to seventy years expanding and contracting. Cracks form, mortar joints fail, and flue gas starts leaking where it shouldn’t. In tract-home subdivisions built from the 1980s onward, the prefab metal fireboxes have a different issue: they’re engineered for specific clearances and venting, and when they fail, they need manufacturer-specific parts, not a generic patch.
Ontario also falls under the South Coast Air Quality Management District. No-burn days are common in winter, which means homeowners often stockpile wood for weeks and then burn heavily when restrictions lift. That produces dense, hardened creosote that standard sweeping won’t remove. It also means chimneys operate in bursts rather than steadily, which stresses liners. Santa Ana winds add one more variable: debris and fine soot driven into caps, crowns, and flue openings, sometimes blocking draft entirely.
Styles & brands we work with
Our Main Ontario Services
Two services account for most of what Ontario homeowners call us about: chimney sweeping and dryer vent cleaning. Both matter here because heavy winter burning and the region’s dry air create conditions where creosote and lint buildup accumulate faster than people expect.
Chimney Sweep in Ontario
An Ontario chimney sweep means more than running a brush. In older ranch homes, we’re looking for cracked clay tiles and glaze creosote that a standard sweep won’t touch. In newer tract homes, we’re inspecting prefab fireboxes against manufacturer specs and clearing debris that Santa Ana winds pushed into the cap. The inland climate means fireplaces sit dormant for months, then work hard from November through February. That burn pattern creates hardened creosote deposits that need mechanical removal, not just a light brushing. Full details on our sweeping process, what we inspect, and what it costs are on our Chimney Sweep in Ontario page.
Dryer Vent Cleaning in Ontario
Dryer vents in Ontario collect lint fast, and lint is fuel. The U.S. Fire Administration identifies failure to clean dryer vents as a leading cause of dryer fires in residential homes. That’s an industry-recognized fact, not a sales line. In Ontario’s dry inland air, lint dries out and becomes more combustible. Long vent runs in single-story ranch homes and two-story tract builds both need professional cleaning with proper tools, not a hardware-store brush. We clean the full run from dryer to exterior termination and document what we find. See Dryer Vent Cleaning in Ontario for scope, pricing, and what to expect.
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 Ontario
Chimney repair in Ontario usually comes down to one of two findings: a clay tile flue cracked by decades of hot-cold cycling in the city’s older ranch homes, or a prefab metal firebox deteriorating in a 1980s-through-2000s tract build. We fix both. We also repair the components that protect the flue from water and debris: flashing, crowns, and caps. Ontario’s Santa Ana winds and seasonal downpours put real stress on those parts, and when they fail, water gets into the masonry and accelerates every other problem. Our full Chimney Repair service covers everything from minor crown resurfacing to full liner retrofits with DuraFlex flexible systems.
Chimney Cap Installation
Signs you need it
You see debris, leaves, or bird nesting material inside the flue, or rainwater is pooling in the firebox after storms.
What it costs in Ontario
Chimney cap installation in Ontario typically runs between $180 and $520 depending on flue size and mounting surface.
How we do it
We measure the flue opening, select a stainless or copper cap sized for that tile, secure it to the crown or flue tile with mechanical fasteners, and confirm draft is unobstructed.
Chimney Cap Replacement
Signs you need it
The existing cap is rusted through, missing mesh panels, or has pulled loose from the crown in high wind.
What it costs in Ontario
Replacement work in Ontario is priced at $180 to $520 including removal of the old cap and disposal.
How we do it
We pull the failed cap, inspect the crown underneath for water damage, and set a correctly sized replacement with new hardware.
Chimney Flashing Repair
Signs you need it
You’re seeing water stains on the ceiling near the chimney chase, or damp drywall around the firebox after rain.
What it costs in Ontario
Flashing repair in the Ontario area is typically $250 to $700 depending on how much of the existing flashing must be removed and replaced.
How we do it
We cut out the failed flashing, install step and counter-flashing with proper overlap, seal the transitions with a professional-grade sealant, and water-test the repair.
What Chimney Repair Costs in Ontario
| Item | Typical range in Ontario |
|---|---|
| Chimney cap installation | $180 – $520 |
| Chimney flashing repair | $250 – $700 |
| Chimney crown repair | $300 – $900 |
These ranges reflect Ontario’s mix of masonry and prefab chimneys. Masonry work on older ranch homes typically lands at the higher end because the crown and flashing have been exposed to decades of weather. A prefab chase in a newer tract home often costs less because the components are standardized.
Do I need a new liner, or can the old one be repaired?
If the clay liner has minor surface cracks, HeatShield resurfacing can often restore it without a full relining. If cracks run through the tile or multiple tiles have shifted, a DuraFlex stainless liner is the correct fix. We only recommend what we can show you on camera.
How long does a chimney repair take in Ontario?
Most cap, flashing, and crown repairs are completed in a single visit. A full liner installation may take a full day. We’ll give you a written scope and timeline before work starts, and nothing gets recommended without camera evidence you can see.
Brands We Service in Ontario
We stock and install parts from manufacturers we’d put in our own homes: DuraFlex for flexible liner retrofits, HeatShield for flue resurfacing, Famco for caps and terminations, and Copperfield for masonry and chase components. Because we carry these lines, we’re not waiting on a supply house for common parts. See our brands for the full list of what we specify and why.
See the difference
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After
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After
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AfterPricing for Chimney Company in Ontario, CA
| Service | Typical range in Ontario |
|---|---|
| Chimney sweep (standard) | $150 – $350 |
| Chimney cap installation | $180 – $520 |
| Chimney flashing repair | $250 – $700 |
| Chimney crown repair | $300 – $900 |
| Chimney liner installation | $1,800 – $4,500 |
| HeatShield resurfacing | $2,000 – $4,000 |
| Dryer vent cleaning | $90 – $180 |
What pushes a chimney repair price up in Ontario is usually access: steep roof pitches, second-story chases, or masonry that needs significant prep before new parts go on. Every estimate is a flat price agreed before we start, and if we find something unexpected during the job, we stop and show you on camera before any additional work is approved.
Neighborhoods We Serve in Ontario
We work across all four Ontario ZIP codes. The older grid around downtown, along Holt and Euclid, sends us into ranch homes with original brick chimneys that need masonry repair. The tract subdivisions east and south of the 15 and 60 freeways have prefab chases that need flashing and cap work. Response time for most Ontario appointments is within a few business days.
- Downtown Ontario
- Holt Boulevard corridor
- Euclid Avenue neighborhoods
- Archibald Ranch
- New Haven
Service Area – Cities Near Ontario
Glendale Chimney Sweep serves Ontario and the surrounding Inland Empire communities. We’re regularly in Montclair, CA, Upland, CA, Chino, CA, and San Antonio Heights, CA. If you’re just over a city line, call us, we likely cover your neighborhood too.
Serving Ontario, CA — Our Local Coverage Area
We’re based in the Ontario 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 Ontario
Most chimney repair work, including cap replacement, flashing repair, and liner installation, does not require a separate city permit in Ontario. When a job does need one due to structural scope, we identify it during the estimate and factor it into the timeline. We’ll tell you before work starts, not after.
Book by early October. Ontario’s burn season starts in November, and once no-burn days lift, demand jumps fast. Scheduling in the fall means you get a clean chimney before the first fire, not a three-week wait in December.
We cover 91762, 91764, 91798, and 91758, which includes all of Ontario from the downtown core to the newer subdivisions east of the 15. If you’re unsure whether your address is in our service area, call (833) 467-6493 and we’ll confirm right away.
If your chimney hasn’t been inspected in the last year, or you’ve noticed water stains, drafting problems, or debris in the firebox, call Glendale Chimney Sweep at (833) 467-6493 for a free estimate. We’ll put a camera in your flue and show you exactly what we’re seeing. No guesswork, no unnecessary work, just straight answers for Ontario homeowners.
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 Ontario Customers Say
"Drop cloths everywhere, HEPA vac, and not a speck of soot on the carpet. I'd been dreading the mess for nothing."
— Luis Ramirez"Creosote buildup was worse than I realized. He measured it, showed me the glazing on the flue with the camera, and was honest that we were closer to a chimney fire than I wanted to hear."
— Erin Doyle"Cap keeps the birds out now, which after two springs of scratching noises is worth every penny."
— Rafael Guzman