Roof Replacement in Ontario - Free Roof Inspection, Written Price

Fast, Reliable Roof Replacement Across Ontario

Roof replacement in Ontario typically runs $9,800 – $18,400 for a standard asphalt shingle home, and most full tear-offs take two to four working days once permits clear. We schedule Ontario jobs directly from our Inland Empire dispatch office, and our crews know the Euclid Avenue corridor, the older tract neighborhoods, and the newer south Ontario subdivisions. Call (562) 315-0297 and you’ll get a live person, a straight answer on timing, and a written price before anyone climbs a ladder.

Call (562) 315-0297

Greg Holloway leads our Roof Replacement team, and he’s spent enough time on Ontario roofs to know the difference between a roof that looks tired and one that’s about to fail in the next Santa Ana event. That local judgment is what we bring to every estimate.

Why Tilehurst Roofing Riverside Is Ontario’s Preferred Roof Replacement Company

Tilehurst Roofing operates under the Kingswell family of roofing companies, founded in 2000, and our Ontario customers get the same thing every other market gets: a written price before the first nail, a written guarantee on every repair, and a crew that shows up in the window we gave you. Our customers in Ontario have told us the same story for years – they got burned by a no-show, or a price that changed at the door, or a repair that failed before the season ended. We built our process around not repeating that.

The 365-Day Done Right Promise is the floor here, not a premium add-on. If it’s not done right, we make it right, for a full year after the job. That promise covers every Ontario roof replacement we install. Our technicians are background-checked and uniformed, so you know exactly who’s on your roof, and every call goes to a live person, 24 hours a day, including weekends and evenings.

Reroofing in Ontario

Reroofing in Ontario means removing the existing shingles down to the decking and installing a new system from the deck up – underlayment, shingles, drip edge, ridge cap, the whole assembly. In Ontario, most reroofing jobs run $9,800 – $14,600 for a 1,400 – 1,800 square foot home with dimensional asphalt shingles.

Homeowners in Ontario neighborhoods off Euclid Avenue and around downtown often find reroofing is the only real option once the original 1960s or 1970s shingles have gone brittle from decades of high-UV exposure. Patching fails because the surrounding material is too far gone to hold a fastener.

Decking and underlayment replacement

On older Ontario tract homes, we regularly find decking that’s been baked by the sun for forty years and needs replacing before the new roof goes on. We inspect the deck, quote the replacement in writing, and don’t surprise you with a change order after tear-off.

Santa Ana wind resistance

Ontario’s fall Santa Ana events expose weak nailing patterns fast. Our reroofing installs use a six-nail pattern and full synthetic underlayment so the new roof stays put when the wind comes through the Cajon Pass.

Flat Roof Replacement in Ontario

Flat Roof Replacement in Ontario is common on the low-slope and mid-century homes clustered through the central city and older tract areas, where original composite or built-up roofs are now past their service life. A typical flat roof replacement in Ontario runs $8,200 – $15,700 depending on square footage, deck condition, and the membrane system selected.

Flat roofs in Ontario take a different kind of beating than pitched roofs. The sun sits on them all day, and underlayment delamination from that constant high-UV exposure is one of the most common failure modes we see. Bare felt cracks within five to seven years even when the surface still looks intact.

Membrane systems we install

We install TPO, modified bitumen, and coated systems, and we’ll recommend the right one for the slope and the sun load on your specific Ontario lot. We spec materials from GAF and Atlas for flat applications, so you’re not limited to whatever happens to be on the truck that week.

Drainage and ponding fixes

Many older Ontario flat roofs were framed with minimal slope, which leads to ponding water after winter rains. We address the drainage as part of the replacement, not as a separate surprise line item.

Trusted Brands We Service in Ontario

We install and service roofs from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Ontario homes, we often recommend GAF for architectural shingle replacements and Atlas for wind-resistant options, but you’ll have genuine choice across seven manufacturers, not a single house brand we’re pushing. We stock the common profiles locally so turnaround on an Ontario replacement doesn’t stall waiting on materials.

Common Roof Replacement Problems We See in Ontario Homes

• Santa Ana wind uplift on original 1960s wood shake roofs. Nails were often overdriven into brittle decking decades ago, so entire shakes tear off after one strong fall storm. The fix is a full replacement with a properly fastened assembly, not another patch.
• Underlayment delamination from high-UV sun on low-slope composite roofs. Ontario’s summer sun breaks down the bonding on older underlayment, leaving bare felt that cracks within five to seven years even when the shingles above look fine.
• Re-roof permit rejections in the historic downtown overlay. Homeowners try to install non-conforming materials without submitting the required architectural review first. The permit gets kicked back and the job stalls. We pre-clear the review so that delay doesn’t happen.
• Tight lot access and shared-wall logistics. Many Ontario homes sit on narrow lots with shared walls, so staging and tear-off access directly affect the quote. We plan the staging before the estimate so the price you get is the price you pay.

Pricing for Roof Replacement in Ontario, CA

We Also Serve Cities Near Ontario

Our crews work throughout Ontario and the surrounding communities, including Claremont, Chino Hills, Chino, and Bloomington. If you’re just outside the city line, call and ask – we likely cover your street.

FAQs About Roof Replacement in Ontario