Level 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 Fireplace Services Across Ontario
Fireplace services in Ontario, CA typically range from $185 for a gas fireplace tune-up to $1,800 for a full fireplace conversion with relining, with most homeowners booking Level 2 inspections annually before the burn season begins. Our crews are dispatched from the Inland Empire office and cover Ontario neighborhoods from the Historic Euclid Avenue corridor south through Ontario Ranch, usually arriving within the same scheduling window we commit to. If you’re smelling gas, seeing soot blowback during Santa Ana events, or firing up a system that’s sat dormant through No-Burn season, call (909) 430-9243 - we answer live, 24 hours a day.
We’ve worked on Ontario chimneys since 2009, and the patterns here are distinct from Montclair, Claremont, or even Upland just to the north. The combination of SCAQMD Rule 445 restrictions, aggressive Santa Ana downdrafts, and two very different housing stocks - aging masonry near Euclid Avenue and gas-only tract construction in Ontario Ranch - means fireplace problems in Ontario don’t look like fireplace problems in other Inland Empire cities. Our Fireplace Services team documents every condition with camera footage before recommending any work.
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.
Why Emberly Chimney Cleaners Rancho Cucamonga Is Ontario’s Preferred Fireplace Services Company
We’ve completed more than 38,000 chimney inspections and cleanings since 2009, and a significant share of those have been in Ontario and the surrounding Inland Empire. Our reputation here is built on documentation, not promises. Every Ontario customer receives a written price before work starts, a camera-scan photo record under Haven Standard Clause 4, and a 365-Day Done Right Promise stamped on the invoice.
Ontario homeowners research before they call. They read the three-star reviews. They want to see what we found, not hear what we think about it. That’s why our Level 2 inspections include dated, geotagged photos of the flue liner, smoke chamber, damper assembly, and firebox - the same documentation that became Clause 4 of the Haven Standard in 2009, years before insurers or regulators required it.
Response time to Ontario is coordinated from our Riverside-San Bernardino metro office. We don’t quote over the phone for repair work; we inspect, document, and deliver a written scope with a fixed price. If you’ve already got a written estimate from another company, our Free Second Opinion policy applies - bring it in, we’ll camera-scan the same areas and tell you what we see.
Our technicians are background-checked, uniformed, and named on your appointment confirmation. You’ll get a text when they’re en route, and their license number is on every page of our site, including this one. That’s Haven Standard Clause 2: Verified crews, verified credentials.
Our Fireplace Services in Ontario

Gas Fireplace Service
Gas fireplace service in Ontario runs $185-$340 for a standard tune-up including burner inspection, pilot adjustment, gas pressure test, and venting verification. Many Ontario homes - especially in Ontario Ranch and the newer tracts south of the 60 - were built with gas-only fireplaces that still require annual flue and venting inspection. The SCAQMD Rule 445 environment has also driven thousands of conversions from wood to gas, and too many of those conversions skipped the critical step of relining the flue to the smaller diameter gas appliances require. We find this constantly in 1980s-2000s builds near Vineyard Avenue and throughout the older core. An improperly sized flue causes exhaust spillage, moisture damage to the chimney interior, and code violations that complicate home sales.

Wood Burning Fireplace
Wood burning fireplace inspection and sweeping in Ontario costs $240-$380 for a standard Level 2 service with camera documentation. Because Ontario falls under SCAQMD Rule 445 No-Burn restrictions, many wood-burning systems sit completely unused for months - sometimes entire seasons. That dormancy creates a problem most homeowners don’t anticipate: chimneys become nesting habitat for birds, squirrels, and roof rats. The first permitted burn of the season can ignite accumulated debris, nesting material, and dried organic matter. It’s a hazard pattern our technicians encounter far more in Ontario than in cities without burn restrictions. We recommend a Level 2 inspection before the first burn every season, even if you didn’t burn wood the previous year.

Fireplace Insert Installation
Fireplace insert installation in Ontario typically ranges from $1,200-$2,400 depending on liner requirements, surround modification, and whether the existing firebox needs repair. Inserts are popular in Ontario’s older Euclid Avenue-area homes where the original masonry fireplace is structurally sound but inefficient. The insert slides into the existing firebox and vents through a stainless steel liner sized precisely to the insert’s output. We source liners through Olympia Chimney and Famco, procured through Haven’s buying network to keep customer prices honest. Every insert installation includes a written price before work begins, camera documentation of the liner pull and connection, and a written warranty under the 365-Day Done Right Promise.

Damper Repair
Damper repair in Ontario costs $180-$450 for most repairs, or $650-$950 for a full top-sealing damper replacement with installation. Santa Ana wind events are the damper’s enemy in Ontario. Strong downdrafts force soot, ash, and debris back through partially open or deteriorated dampers into living spaces - a seasonal complaint we field repeatedly each fall from neighborhoods near Archibald Avenue and throughout the Foothill corridor. Many Ontario chimneys also lack a properly functioning chimney cap, which means rain, debris, and pests enter the flue above and accelerate damper corrosion. We inspect damper operation, seal condition, and frame integrity during every Level 2 service, and we document what we find with photos you can review.

Fireplace Conversion
Fireplace conversion in Ontario - wood-to-gas or gas-to-wood - runs $1,400-$1,800 for a typical relining and burner conversion, with full masonry modifications running higher. This is one of our most called-on services in Ontario specifically because of Rule 445. Homeowners convert to gas to avoid No-Burn day penalties, but the critical step of relining the flue to the correct smaller diameter is frequently skipped by less thorough contractors. An unlined or improperly lined gas conversion is a code violation and a safety hazard. We specify the correct liner diameter based on the appliance’s BTU output and venting requirements, install it with a documented photo record under Haven Standard Clause 4, and deliver a written warranty.

Firebox Repair
Firebox repair in Ontario ranges from $350 for localized refractory panel replacement to $1,200-$2,500 for extensive refractory rebuilding or steel firebox restoration. Ontario’s 1940s-1960s masonry stock near Historic Euclid Avenue shows firebox deterioration from decades of thermal cycling in Inland Empire heat - mortar joints crumble, refractory brick spalls, and steel fireboxes rust through at the seams. The extreme aridity here (under 15 inches of annual rainfall) means degradation comes from intense thermal cycling and UV exposure, not freeze-thaw damage like we see in higher-elevation nearby cities. We document firebox condition with camera footage, explain what the damage means for safe operation, and provide a written repair scope with fixed pricing before any work begins.

Before
AfterTrusted Brands We Service in Ontario
We stock parts and materials from Gelco, Olympia Chimney, and Famco - sourced through Haven’s buying network specifically to keep Ontario customer prices honest. Gelco chimney caps and dampers handle the Santa Ana wind exposure common in Ontario’s exposed Foothill neighborhoods. Olympia Chimney stainless steel liners are spec’d for the temperature and corrosion requirements of local gas conversions. Famco venting components cover the range of Ontario Ranch’s newer direct-vent systems. We don’t special-order on your dime; if it’s a common Ontario configuration, we carry it or can have it next day from regional distribution.
Common Fireplace Services Problems We See in Ontario Homes

- Bird and pest nests in dormant chimneys. SCAQMD Rule 445 No-Burn days leave Ontario fireplaces unused for months. Chimneys become prime nesting habitat, and the first permitted burn of the season can ignite accumulated debris. We found a bird nest and first-degree creosote in a smoke chamber last fall near Historic Euclid Avenue - after installing a properly sized HeatShield liner and new chimney cap, we cleared the blockage and brought the system to code.
- Gas log conversions without proper relining. A significant number of Ontario homeowners converted original masonry wood-burning fireplaces to gas log sets to sidestep No-Burn penalties, but many skipped relining the flue to the smaller diameter gas appliances require. The result is draft failure, exhaust spillage, and a code non-compliant condition we flag constantly during Level 2 inspections.
- Santa Ana downdraft pushing soot through dampers. Ontario’s position in the Inland Valley puts it directly in the path of Santa Ana wind events. Strong downdrafts push soot, ash, and debris back through dampers into living spaces. The fix is usually a combination of damper repair and a properly spec’d chimney cap - not a bigger fireplace.
- Thermal cycling damage to older masonry. Ontario’s Historic Euclid Avenue corridor contains 1940s-1960s chimneys with deteriorated mortar joints from decades of thermal cycling in Inland Empire heat. The extreme aridity means spalling and joint failure come from heat expansion and UV exposure, not moisture freeze-thaw. We document this damage with camera footage and explain whether repair can wait or needs immediate attention.
Pricing for Fireplace Services in Ontario, CA
| Service | Typical Range in Ontario |
|---|---|
| Gas fireplace tune-up | $185 - $340 |
| Wood burning fireplace sweep + Level 2 inspection | $240 - $380 |
| Damper repair | $180 - $450 |
| Damper replacement (top-sealing) | $650 - $950 |
| Firebox refractory repair | $350 - $2,500 |
| Fireplace insert installation | $1,200 - $2,400 |
| Fireplace conversion with relining | $1,400 - $1,800 |
What moves the price: accessibility of the chimney (steep roof pitches common in Ontario Ranch’s two-story plans add labor), whether the flue requires relining for a conversion or insert, and the extent of firebox or smoke chamber damage documented during camera inspection. We don’t guess. We inspect first, deliver a written price with scope and warranty before any work starts - Haven Standard Clause 1, H.A.V.E.N. “Have it in writing.” Estimates are free. Call (909) 430-9243 to schedule.
We Also Serve Cities Near Ontario

Our crews work throughout the western Inland Empire, including Ontario and neighboring Montclair, Claremont, Upland, and Rancho Cucamonga. Each city has distinct chimney conditions - Montclair’s denser mid-century stock, Claremont’s hillside exposure, Upland’s higher-elevation freeze-thaw cycle, Rancho Cucamonga’s mixed old-and-new construction - and we adjust our inspection focus accordingly. Dispatch and scheduling are coordinated from our Inland Empire office.
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 - Fireplace Services in Ontario

Once per year, every year, regardless of use. Ontario’s SCAQMD Rule 445 restrictions mean many chimneys sit dormant for months, becoming nesting habitat for birds and pests. An unused chimney with a blocked flue is more dangerous than a regularly swept one, because the first permitted burn of the season can ignite accumulated debris. Call (909) 430-9243 for a free estimate - we’ll camera-scan the flue and show you exactly what’s in there.

Check whether the flue was relined to the correct smaller diameter for gas appliance venting. Many Ontario conversions skipped this step, leaving an oversized masonry flue that causes draft failure, exhaust spillage, and code violations. The only way to verify is a Level 2 camera inspection of the full flue length. If your conversion was done without proper relining, we can spec and install the correct liner from Olympia Chimney or HeatShield with a written price before work starts. Call (909) 430-9243 for a free estimate.

Strong downdrafts from Santa Ana events push air down the flue, forcing soot and ash through a deteriorated or partially open damper into your living space. Ontario’s position in the Inland Valley makes this a seasonal pattern, not a fluke. The fix is typically damper repair or replacement plus a properly spec’d chimney cap to deflect downdraft. We diagnose this with smoke testing and camera inspection, then deliver a written repair scope. Call (909) 430-9243 for a free estimate.

First-degree creosote is flaky, sooty, and brushes off easily - common in open wood-burning systems with good airflow. Third-degree creosote is hardened, tar-like, and often glazed to the flue liner; it requires chemical treatment or rotary removal and poses significantly higher chimney fire risk. In Ontario, third-degree creosote is less common than in heavy-burning mountain communities because Rule 445 limits wood use, but it does occur in homes that burn improperly seasoned wood on permitted days or that run wood stoves as primary heat. We classify creosote during every Level 2 inspection and explain what removal method applies. Call (909) 430-9243 for a free estimate.

Yes, in specific ways. Dormant chimneys in Ontario accumulate moisture from condensation, pest nesting material, and debris that would otherwise be dried by regular fire heat. Masonry mortar in unused systems also undergoes thermal cycling without the stabilizing effect of controlled heating, accelerating joint deterioration in our extreme aridity. The damage is different from active-use wear but no less real. Annual Level 2 inspection catches it before it becomes costly. Call (909) 430-9243 for a free estimate.
Ready to schedule? Call (909) 430-9243 any time - we answer live, 24 hours a day. We’ll book your Level 2 inspection, dispatch a verified technician with a named appointment, and deliver a written price before any work begins. Every job includes camera documentation under Haven Standard Clause 4 and our 365-Day Done Right Promise. Free estimates. Free second opinions on any written competitor quote.
Written by Corrine Halstead, Owner at Emberly Chimney Cleaners, serving Ontario and the Inland Empire since 2009.






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