Heritage Homes to Ontario Ranch — We Roof Ontario.
Mars Roofers is the roofing contractor Ontario homeowners call across a century of housing stock — replacement, repair, and tear-off by licensed in-house crews. CSLB #1138550.
Call 310.880.9718
Roofs We Work On In Ontario
Ontario’s roofs reflect the city’s scale and history. Downtown and the neighborhoods along the Euclid Avenue corridor hold some of the Inland Empire’s oldest housing — heritage homes from the early 1900s with composition shingle or older wood shake and shingle, where preservation-minded owners care as much about the roof’s character as its condition. Across the city, mid-century tracts wear aging composition shingle now deep into its later years. To the south, Ontario Ranch — one of the largest master-planned communities in the region — is building out thousands of new homes in concrete tile. A roofing day in Ontario can land on any of these, and each gets read on its own terms.
The problems we fix most are end-of-life composition shingle on the older stock — curling, cracking, and granule loss — along with deteriorating wood shake and shingle on heritage homes, where splitting and weathering have opened the system up. On tile roofs, slipped or broken tiles and aging underlayment are the hidden leak sources that only an on-roof inspection finds. Flashing failures at vents, chimneys, and wall intersections show up across every roof type and era, and they’re the most repairable items on any list we write. On heritage homes we match materials and profiles so the repair respects the architecture; on Ontario Ranch tile we reseat, re-flash, and document. Same standard, different roofs.
Roofing Services In Ontario
- Roof replacement — complete systems for heritage, tract, and new-community homes
- Shingle roofs — architectural shingle replacing end-of-life composition across the tracts
- Tile roofs — concrete tile repair, replacement, and underlayment work in Ontario Ranch and beyond
- Tear-off & re-roof — layered heritage roofs stripped so the deck can be repaired honestly
- Roof repair — flashing at vents, chimneys, and wall intersections; wind damage
- Flat & TPO roofs — low-slope sections on older homes and additions
- Gutters — drainage for the Euclid corridor’s mature tree canopy
- Emergency leak repair — active leaks: call 310.880.9718
What Drives The Cost In Ontario
Ontario pricing turns first on which Ontario you live in. A heritage tear-off with deck repairs hiding under a century of layers, a mid-century tract re-roof, and flashing work on new Ontario Ranch tile are three different scopes. Size, pitch, material, and underlayment system apply across all of them. We inspect — standard inspections are $300, photo-documented — and then write a proposal with combined pricing and deck terms in the open. The roof cost guide explains the factors, the roof cost estimator gives a planning range, and our sample estimates run about $749 per square all-in for architectural shingle if you want a real-world anchor.
Ontario sits in the warm heart of the western valley, where long hot summers age roofing faster than the calendar suggests. Heat bakes sealants and dries out flashings, while seasonal Santa Ana winds work on weakened shingle tabs and scatter debris across slopes. The city’s mature street trees — especially in the older Euclid Avenue neighborhoods — drop leaves into valleys and behind chimneys, trapping moisture against the roofing. A roof specified for Ontario is specified for heat first, wind second, and debris always.
Ontario Roofing Questions
Can a new roof keep my heritage home’s character?
Yes. On Euclid corridor homes we match profiles and materials to the architecture — architectural shingle lines that suit early-1900s rooflines, tile where tile belongs — and the deck and flashing work underneath is fully modern.
My Ontario Ranch tile roof is new. Why would I need a roofer already?
New tile roofs mostly need us for details: slipped tiles from settling and wind, flashing at penetrations, and valley debris. Small work, done early, protects the big investment — and documents the roof’s condition while it’s young.
Buying or selling in Ontario?
For a certified roof report for your transaction, our sister company Get Your Roof Certified handles NRCIA certification inspections in Ontario. For repair and replacement, call Mars Roofers.
Call 310.880.9718 — Mars Roofers, licensed CSLB #1138550.