Roof Replacement in Ontario — Free Inspection, Itemized Written Quote

Fast, Reliable Roof Replacement Across Ontario

Roof replacement in Ontario, CA typically runs $11,500 – $19,800 for a standard single-story tract home with architectural shingles, and most jobs take 2 – 4 days once materials land. If you’re searching because a Santa Ana wind event just peeled back your ridge caps or you’ve got a leak that’s been getting worse every winter, call Baycrest Roofing at (866) 412-5697. We work throughout Ontario’s 91758, 91761, 91762, and 91764 zip codes, and our crews know these subdivisions block by block because we’ve been replacing roofs here long enough to see the same failure patterns repeat across whole streets.

Call (866) 412-5697

What sets our Ontario work apart is that we inspect first and recommend second. We won’t sell you a replacement if your roof honestly needs repair, and we won’t quote you a single-brand line just because it’s what we stock. We carry access to seven major shingle manufacturers so the material matches your roof’s exposure, not our inventory.

Why Baycrest Roofing Is Ontario’s Preferred Roof Replacement Company

Homeowners across Ontario keep calling us back for one reason that matters more than any marketing line: we can explain exactly why their roof failed before we ever talk price. That matters here because Ontario sits in the Inland Empire’s heat-and-wind corridor at the base of the Cajon Pass, where summer temperatures push past 100°F while Santa Ana gusts funnel through the valley. Most roofing companies in the region quote the same replacement regardless of whether the home is in a protected pocket near Chino or fully exposed on an east Ontario ridgeline. We don’t. Windward-facing slopes in the 91762 and 91764 zip codes need different nailing patterns than sheltered cul-de-sac homes near the historic downtown core off Euclid Avenue.

Nolan Cafferty, who leads Baycrest Roofing, built the company around a material-agnostic approach: Roof Replacement is not a one-size job, and seven brands means we can actually spec what the structure and exposure demand. That’s why Ontario homeowners who’ve had us out for inspections often tell us the estimate conversation was the first time a roofer talked about fastener patterns, not just shingle color. Our local reputation in Ontario is built on inspections that catch what wind and UV have already started, before it becomes a $3,000 decking replacement.

Roof Installation in Ontario

Roof Installation in Ontario means building a roof that survives two forces most of Southern California never deals with at the same time: thermal bake from 100°F-plus summer days and wind uplift from Cajon Pass gusts. For a typical Ontario tract home, full roof installation runs $11,500 – $19,800 depending on square footage, pitch, decking condition, and material tier. That includes tear-off of the old roof, decking assessment and replacement where needed, underlayment, new shingles, flashing, ridge caps, and cleanup. The biggest cost variable in Ontario is decking: older post-war homes near downtown Ontario and the 1960s – 80s subdivisions east of the 15 often have 1×6 skip sheathing or water-damaged plywood that can’t pass inspection without reinforcement.

Tear-Off and Decking Preparation

We remove everything down to the decking before we install anything new. In Ontario, that step matters more than homeowners expect, because we regularly find wind-loosened flashing and dried-out underlayment hiding under shingles that looked fine from the ground. If the decking is solid, we proceed. If it’s rotten or skip-sheathed, we replace it and show you exactly why before we move forward.

Material and Fastener Specification

For homes in Ontario’s wind-exposed zones, we spec a six-nail per shingle pattern even though most manufacturers’ base warranty accepts four. That’s not an upsell. The lighter nailing pattern is the single most common cause of wind-peeled ridge caps we see after a pass gust. We also recommend architectural shingles with a higher wind rating for exposed slopes, and we’ll walk you through the difference between premium-tier options and value-tier options so the budget decision is yours, not ours.

Roof Replacement Contractor in Ontario

Baycrest Roofing is a Roof Replacement in Ontario contractor that works across the full roof lifecycle, inspection through repair through replacement, so you’re not juggling three different companies as your roof ages. A full replacement in Ontario costs $11,500 – $19,800 for most tract homes, with larger two-story homes and steeper roof profiles running higher. The number moves based on square count, material tier, decking replacement, and whether we need to pull permits and schedule city inspections. We handle permits and inspections as part of the job, and every replacement gets a written line-item quote before work starts.

Estimate and Inspection Process

Every Ontario replacement starts with a roof inspection, not a sales pitch. We measure the roof, photograph the condition, check the decking, and look at the nailing pattern on the existing shingles. If we find the builder used four nails where the wind zone requires six, we tell you. Our estimate then reflects what your roof actually needs, not a generic replacement price. That process protects you from paying for decking you don’t need, and it catches problems before they become emergency leaks.

Replacement Scope and Timeline

A standard Ontario single-story replacement takes 2 – 4 days from tear-off to final cleanup, weather permitting. Two-story homes and roofs with multiple valleys or a steep pitch take longer. We never start a tear-off until materials are staged and the forecast is clear, because exposing your decking to an unexpected pass-driven rain is a failure we refuse to create. You’ll know the exact schedule and cost before we put a single nail in your roof.

Trusted Brands We Service in Ontario

We’re manufacturer-authorized across seven shingle lines, including GAF, CertainTeed, Owens Corning repair in Ontario, IKO, Atlas, Tamko, and Boral. That breadth matters in Ontario because different neighborhoods face different exposures. A protected single-story near Montclair might do well with a value-tier Atlas or Tamko shingle, while an east Ontario two-story that eats wind off the pass every Santa Ana season is better served by a CertainTeed Landmark or GAF Timberline rated for higher uplift. We stock local parts for common Ontario replacements and can turn around material orders within days, not weeks, because our supplier relationships run across all seven brands. We match the material to your roof, not your roof to our inventory.

Common Roof Replacement Problems We See in Ontario Homes

• Wind-peeled ridge caps on windward slopes. East Ontario tract homes consistently lose ridge caps and hip shingles first after a Cajon Pass wind event, not because the shingles are old but because the original builder used 4 nails per shingle instead of the 6 required for high-wind zones. We check the nailing pattern on every estimate.
• UV-baked granule loss and dried sealant. Ontario’s summer heat pushes well past 100°F and the intense UV bakes asphalt shingles, drying out sealant and causing granule loss that exposes the fiberglass mat. By the time a homeowner notices the shingles looking thin, the roof is often past recoverable repair.
• Decking rot from wind-loosened flashing. Winter rain, when it comes, finds any flashing that wind has already lifted around penetrations, valleys, and chimney bases. Water gets into the decking and rots it from underneath, which is why a small roof leak in Ontario can quickly turn into a full decking replacement.
• Skip sheathing and aged underlayment on older homes. Post-war homes near downtown Ontario and the 1960s-era subdivisions off Holt Boulevard often sit on 1×6 skip sheathing with dried-out, brittle felt underlayment. That decking cannot support modern shingle warranties and usually has to come out during replacement.

Pricing for Roof Replacement in Ontario, CA

We Also Serve Cities Near Ontario

Our crews work throughout Ontario and the surrounding Inland Empire cities, including Montclair, Upland, Chino, and Claremont. If you live near the Ontario border in any of these communities, we’ll bring the same inspection-first process and seven-brand material range to your roof replacement.

FAQs About Roof Replacement in Ontario