Architectural shingles
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Roofers in Ontario, CA
Roof inspection in Ontario should start with the underlayment, not the shingles or tile you can see from the street. Most Ontario homes were built between 1960 and 1990, and that means original felt underlayment is now 30 to 40 years old, dried out, and cracking beneath concrete tile that still looks fine from the ground. Ridge Cap Roof Repair has served Ontario since 2018, and we inspect before we recommend, because the right fix here is often a tile lift-and-relay, not a full replacement. Call (866) 361-0798 when you need an honest read on what’s actually failing.
Why Ontario Homes Are Different
Ontario’s roofing market is defined by the massive late-20th-century tract home belt, especially in ZIP codes 91761 and 91764, where original builder-grade concrete tile underlayment is failing across entire subdivisions in sync. Walk any street in these east-side tracts and you’ll see the pattern: the tile itself has decades of life left, but the felt beneath it has been baked by 100°F+ summers until it cracks and lets water through. A leak in one house usually means the neighbors are on borrowed time too.
Add the Santa Ana wind corridor through the Cajon Pass and Ontario becomes an underscoring and tile-fastener problem, not a shingle problem. Wind gusts come down the pass and push under tile edges, so fastening patterns matter more here than in cities farther from the pass. The older core around 91762 has a different profile: asphalt shingle roofs on wood-frame construction, many with original underlayment at end of life, plus low-slope patio additions that need hot-mop or TPO. High-wind fastening and Class A fire-rated assemblies are a practical local requirement in Ontario, not an upsell. The heat differential plus wind-driven embers make it so.
Styles & brands we work with
Our Main Ontario Services
Most Ontario homeowners call us for one of two reasons: a leak they can’t trace, or a roof that’s hit the 30-year mark on original materials. Here’s what each job involves here.
Roof Repair in Ontario
Repair work in Ontario usually means getting under the tile. Our crews lift concrete tile, inspect the cracked felt beneath, and replace the underlayment section by section before resetting the tile. In the 91762 core, repair work more often involves asphalt shingle patching on wood-frame homes and resealing low-slope patio covers. The Santa Ana winds mean every repair has to include a fastener check across the surrounding field. Roof Repair in Ontario from the ridge cap down is what we do.
Roof Replacement in Ontario
When tile underlayment has failed across the entire roof plane, spot repair stops making sense. Replacement in Ontario means full tear-off of the old tile and felt, new high-temperature underlayment rated for Inland Empire heat, and a re-set or new tile system depending on what’s salvageable. For older 91762 homes, replacement often means switching from worn asphalt shingles to a material matched to the home’s structure and the wind exposure from the Cajon Pass. Roof Replacement in Ontario starts with the same inspection we’d do for any repair call.
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.
Roof Inspection in Ontario
Roof inspection in Ontario is the service we recommend before any repair quote, because the visible surface rarely tells the real story. On 1980s and 1990s tract homes in 91761 and 91764, the original concrete tile often looks intact while the felt underlayment beneath it has dried and cracked from decades of 100°F summers. The same heat degrades asphalt shingles fast on older 91762 homes, and Santa Ana winds out of the Cajon Pass create fastener stress no visual check from the ground will catch. Our Roof Inspection gets on the roof, lifts tile, and documents what’s actually failing before any repair or replacement conversation starts.
Roof Inspection Services
Signs you need it
Water stains on ceilings, granule buildup in gutters, cracked or shifted tile, or a roof past year 25 that hasn’t been inspected since it was new.
What it costs in Ontario
A standard roof inspection in Ontario runs $200 – $350 depending on roof size, access, and whether the home is single story or has a low-slope patio addition.
How we do it
We walk every roof plane, lift tile at ridge caps and valleys to check underlayment, inspect flashings and fastener patterns, and document findings with photos you can keep.
Free Roof Inspection
Signs you need it
You’re buying or selling a home in Ontario and the disclosure asks about roof condition, or you filed an insurance claim after a wind event and need an independent read.
What it costs in Ontario
We provide a free roof inspection when it’s part of a repair or replacement estimate; standalone inspection-only visits carry the standard $200 – $350 fee.
How we do it
The same crew that would do any repair performs the inspection, so the findings translate directly into a line-item scope of work, never a vague summary.
What Roof Inspection Costs in Ontario
| Item | Typical range in Ontario |
|---|---|
| Standard roof inspection | $200 – $350 |
| Inspection included with repair/replacement estimate | Free |
| Insurance or real estate documentation add-on | $50 – $100 |
How often should I get a roof inspection in Ontario?
Every 3 to 5 years on most Ontario roofs, and annually after year 25. The underlayment on 1980s tile roofs can fail long before the tile shows wear, so regular checks catch it early. Call (866) 361-0798 to schedule yours.
Do you get on the roof for the inspection?
Always. We walk every plane, lift tile to inspect underlayment, and check fastener patterns. A ladder-only look can’t see what Ontario’s heat and wind have done beneath the surface.
Brands We Service in Ontario
We work across seven manufacturers, so the material recommendation for your Ontario roof is driven by the job’s conditions, not by what we stock the deepest. Owens Corning and IKO shingles are common on 91762 wood-frame homes, while Atlas and Tamko make sense on tile and low-slope applications where heat and wind resistance are the priority. See our brands for the full roster. Seven manufacturers, one crew.
See the difference
Before
After
Before
After
Before
AfterPricing for Roofers in Ontario, CA
| Service | Typical range in Ontario |
|---|---|
| Roof inspection | $200 – $350 |
| Hail damage roof inspection | $250 – $400 |
| Roof estimate | Free with inspection |
| Asphalt shingle roof repair | $450 – $1,500 |
| Tile underlayment repair (section) | $900 – $2,500 |
| Tile fastener check and re-secure | $550 – $1,800 |
| Asphalt shingle roof replacement | $8,500 – $18,000 |
| Tile underlayment replacement (full, tile re-set) | $12,000 – $28,000 |
In Ontario, the biggest price driver is underlayment condition on older tract homes: if the felt has failed across the whole roof, you’re looking at a full lift-and-relay, not a patch. We give upfront, line-item pricing with no change orders once the inspection is done.
Neighborhoods We Serve in Ontario
We work every Ontario ZIP code, from the 1960s-era tile tracts in 91761 and 91764 to the older shingle homes around 91762 and the newer construction in 91758. Here are the areas we see most often:
- East Ontario tract homes (91761, 91764) – original tile underlayment at end of life
- Ontario core (91762) – asphalt shingle and wood-frame construction
- South Ontario (91758) – newer builds with mixed materials
- Edenglen and New Haven – planned communities with HOA roof requirements
Most Ontario inspections are scheduled within a week, and we group visits by ZIP so you’re not waiting on a crew driving in from across the county.
Service Area – Cities Near Ontario
Ridge Cap Roof Repair covers Ontario and the surrounding cities across the Inland Empire. If you’re in Montclair, CA, Upland, CA, Chino, CA, or San Antonio Heights, CA, you’re in the same wind and heat zone we work every week, and the same inspection, repair, and replacement service applies there 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 Roofers in Ontario
Most inspections are scheduled within a week. Repair work on active leaks is prioritized based on severity, and we group visits by ZIP code so 91761 and 91764 calls are handled on the same dispatch route.
When the job requires a permit, we pull it. Ontario requires permits for full replacements and structural repairs; tile fastener and underlayment patches typically fall under repair exemptions. We’ll tell you which applies before work starts.
Yes. Many Ontario planned communities have HOA roofing specs, especially for tile color and material type. We’ll work from your HOA’s standards and provide the documentation they need, so the job doesn’t stall at the architectural-review step. Call (866) 361-0798 to schedule your free estimate.
What happens when you call
- 1A real person answersNo phone trees — talk to a local roofing 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
"Valley had been done without proper underlayment and was leaking. Redone correctly, and he explained exactly what had been wrong so I could understand it."
— Gilbert Flores"Fixed the leak and it has stayed fixed through a wet winter. Scheduling the initial estimate took about a week and a half, so they're clearly busy."
— Eric Tran"Added a ridge vent and cleared the blocked soffit vents. Attic temperature in the summer dropped noticeably and the upstairs is livable now."
— Ramon Salazar