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 Ontario
A chimney sweep in Ontario, CA typically costs between $169 and $289 for a standard fireplace cleaning and inspection, with most homes in 91761, 91762, and 91764 falling in that range. We’re Firebrick Chimney Sweep, and we work on Ontario chimneys year-round, from the mid-century brick fireplaces downtown to the factory-built metal units in newer east-side subdivisions. Call (866) 520-4943 and we’ll get you a straight answer and a free estimate, usually within one business day.
Why Firebrick Chimney Sweep Is Ontario’s Preferred Chimney Sweep Company
Most chimney companies in Ontario are either sweep-only operators who stop at the brush, or general handymen who fit chimneys in between other jobs. That’s not us. We sweep it, we repair it. One company, no referrals. When our sweep finds a cracked flue tile or a spalled liner, we can address it directly, because chimney repair is a core part of what we do, not a side service.
Ontario homeowners call us because we carry professional-grade products, not whatever’s stocked at the hardware store. We use DuraFlex liners, HeatShield ceramic resurfacing, and components from Gelco, Olympia Chimney, and Famco. These are the same materials certified chimney professionals specify, and they mean the difference between a liner that lasts decades and one that fails in five years. We also handle dryer vent cleaning, because chimneys and dryer vents share the same core risk: restricted, dirty ventilation that becomes a fire. We treat both with the same seriousness.
We know Ontario’s housing stock. When we get a call from the older neighborhoods around downtown or 91762, we expect post-WWII brick masonry with original clay tile liners. When the call comes from the eastern ZIPs, we expect factory-built metal fireplaces that need manufacturer-specific cleaning methods. That local pattern recognition saves you time and gets the diagnosis right the first visit.
Styles & brands we work with
Chimney Services in Ontario
Chimney Services in Ontario means cleaning, inspecting, and repairing the entire venting system, not just running a brush up the flue. That matters here because Ontario’s older masonry chimneys often hide problems a basic sweep won’t touch: spalled clay liners, broken mortar joints in the smoke shelf, and wind-driven debris from the Cajon Pass that packs chimney caps after Santa Ana events.
Creosote and Soot Removal
Creosote builds up differently in Ontario’s inland climate. Hot summers mean fireplaces sit idle for months, and the creosote from last winter hardens into a stubborn glaze by October. We remove all three degrees of creosote, including third-degree tar glaze that a standard wire brush won’t budge. A typical creosote removal in Ontario runs $189 to $249, depending on the flue’s condition and last cleaning date.
Fireplace Cleaning and Level 1 Inspection
Every sweep includes the interior firebox, damper assembly, smoke chamber, and accessible flue surfaces. We also perform a Level 1 inspection on every visit, checking for cracked bricks, deteriorated mortar, and flue obstructions. In Ontario’s 91762 duplexes and attached homes, we pay special attention to shared stacks, because a neighbor’s exhaust finding its way into your flue is a real failure mode here.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Chimney Sweep Certified in Ontario
Chimney Sweep Certified in Ontario means we follow the inspection and cleaning standards recognized across the chimney industry, not a shortcut list. When we finish, you get a written report with photos from our camera inspection, so you can see exactly what we saw. No vague verbal summaries. If we tell you a liner needs work, you’ll see the cracks in the photos yourself.
Level 2 Inspection for Ontario Home Sales and Transfers
Ontario has a substantial rental and resale market, and home inspectors and insurance carriers routinely flag chimneys during escrow. A Level 2 inspection goes deeper than a standard sweep: camera scanning of the entire flue interior, examination of accessible appliance connections, and a check of the attic and roof penetration. Home sales in Ontario commonly require this when the property changes hands or after a chimney fire backdraft event. Level 2 inspections in Ontario typically run $289 to $389, depending on the system’s complexity and whether the flue has already been lined.
Annual Sweep for Ontario Wood-Burning Fireplaces
If you burn wood regularly from November through March, schedule an annual sweep before the serious burning season starts. Ontario’s fall Santa Ana winds are your natural calendar: when leaves and debris start piling up against the chimney cap, it’s time to have the flue inspected. A standard annual sweep in Ontario runs $169 to $219 for a single flue masonry fireplace, and slightly more for factory-built metal fireplaces that require manufacturer-specific brushes.
Trusted Brands We Service in Ontario
We work with professional-grade chimney systems and components, and that matters when we’re inside your Ontario chimney. We install and service DuraFlex stainless steel liners, apply HeatShield ceramic flue resurfacing, and use components from Gelco and Olympia Chimney where they’re the right fit for the job. Because we stock these materials and use them daily, we don’t order generic substitutes from a big-box retailer and hope they work. When an Ontario fireplace needs a specific manufacturer’s part, we can usually source it without the two-week wait. Our team is led by Nelson Quijada, who sets the standard for every inspection we perform.
See the difference
Before
After
Before
After
Before
AfterCommon Chimney Sweep Problems We See in Ontario Homes
- Shared flue cross-contamination in attached housing. Ontario’s 91762 tract homes and duplexes often have adjacent units venting into a common stack. A sweep can reveal exhaust from a neighbor’s furnace or water heater bleeding into your flue, and that’s a carbon monoxide risk we flag immediately.
- Santa Ana debris packing chimney caps. Wind from the Cajon Pass drives leaves, twigs, and even bird nests into chimney caps across Ontario. A blocked cap causes backdrafting, soot stains on the firebox, and slow-starting fires.
- Original 1950s clay tile liners now failing. Many homes in Ontario’s core were built with unlined or clay-tile-lined flues that have never been touched. Sixty years of thermal cycling spalls the clay, and a routine sweep often turns into a liner-safety conversation.
- Wrong cleaning method on factory-built fireplaces. Newer eastern Ontario construction uses prefabricated metal chimneys. Using masonry brushes or techniques on these systems damages them. Manufacturer-specific cleaning is non-negotiable, and we do it properly.
Pricing for Chimney Sweep in Ontario, CA
Here’s honest pricing for chimney sweep work in Ontario. A standard sweep with Level 1 inspection runs $169 to $219 for a single flue masonry fireplace. Add a second appliance connection, like a furnace or water heater venting into the same flue, and expect $229 to $279. Level 2 camera inspections, which Ontario home sales and insurance inquiries often require, run $289 to $389. A full creosote removal on a heavily glazed flue typically hits $189 to $249. If we find liner damage during the sweep, HeatShield resurfacing is often the lower-cost alternative to full relining, and we’ll show you the camera footage before recommending anything. Call (866) 520-4943 for an exact quote. Estimates are free, and nothing gets recommended without photo evidence you can see.
We Also Serve Cities Near Ontario
Our Chimney Sweep team covers Ontario plus the surrounding communities: Montclair, Upland, Chino, and San Antonio Heights. If you’re in any of these areas, you get the same pricing, the same inspection standards, and the same repair capability. We know the housing stock across this part of the Inland Empire. Request service for Chimney Sweep in Ontario and we’ll confirm your appointment, often within a day or two.
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 Sweep in Ontario
Once a year if you burn wood regularly. In Ontario’s climate, the real factor is idle time and wind. Fireplaces sit dormant through hot summers, creosote hardens, and fall Santa Ana winds push debris into caps. Schedule your sweep in September or early October, before you light the first fire. Call (866) 520-4943 to schedule.
A sweep can diagnose backdrafting, and we can repair the underlying cause. Shared stacks in Ontario’s 91762 attached housing create cross-contamination risk: exhaust from one unit’s furnace or water heater bleeding into the other unit’s flue. We were called to a 1950s duplex near downtown Ontario where the homeowner complained of a draft and soot marks on the firebox. Upon inspection, we found the original unlined clay tile flue had spalled, and a dislodged bird nest was blocking the shared stack, causing exhaust from the neighbor’s water heater to backdraft into the living space. We removed the debris, performed a Level 2 inspection, and recommended a HeatShield liner to separate the flues and restore proper draft. That’s the kind of fix a sweep-only company can’t offer.
Older Ontario neighborhoods, like the core around downtown and 91761, 91762, and 91764, are dominated by post-WWII and 1960s-70s tract homes with brick masonry fireplaces and clay tile liners. Many of those liners are original and now failing. Newer construction in the eastern ZIPs trends toward factory-built metal fireplaces requiring manufacturer-specific cleaning. We handle both.
Third-degree creosote looks like a shiny, tar-like glaze coating the flue walls, not the flaky black stuff from a single season. It forms after repeated burning, especially with green wood or restricted airflow. If your fires seem sluggish, you smell a strong campfire odor indoors, or the flue hasn’t been swept in years, odds are high. The only way to know for sure is a camera inspection. We’ll show you the footage.
Yes, and it does regularly. The Santa Ana wind corridor off the Cajon Pass drives leaves, ash, and debris into Ontario chimney caps and flues, especially in the older neighborhoods. Debris blocking the cap causes backdrafting and forces exhaust back into the home. After strong wind events, we field calls from homeowners across Ontario who suddenly have soot marks on the firebox and trouble starting fires. A cap inspection takes minutes. Call to schedule one before burning season.
Written by Nelson Quijada, Owner at Firebrick Chimney Sweep, serving Ontario and the surrounding area.