Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Ontario
Roof replacement in Ontario, CA typically runs $11,500 to $34,000 depending on the roof’s size, pitch, and what tear-off uncovers, and most jobs take five to ten working days once materials land. If you’re in 91761, 91762, or 91764 and your roof is pushing twenty-plus years, the question usually isn’t whether to replace it, it’s how to do it without the quote doubling halfway through. We work across Ontario from the older central tracts to the newer north-side subdivisions, and we know exactly what wind, heat, and time do to roofs here. Call (833) 589-7971 for a straight answer and a written quote.
Why Hollywood Roofing Co Is Ontario’s Preferred Roof Replacement Company
Ontario homeowners call us because we show up knowing what their roof is up against before we climb the ladder. The Roof Replacement in Ontario work we take on usually starts with homes in the 91761, 91762, and 91764 zip codes where original builder-grade shingles are at or past their service life. We’ve torn off enough of them to know what’s underneath before we write the allowance.
Our reputation in Ontario comes from how we handle the unknown. When a homeowner off the Etiwanda foothill path asks about wind damage, we’re not guessing, we’re speaking from jobs where Santa Ana gusts sheared ridge caps clean off windward slopes. Roland Vega set the standard here: inspect thoroughly, price honestly, and never surprise a homeowner with a change order they didn’t approve in writing first.
We don’t run one-brand pitches. We install GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, which means the recommendation you get is matched to your home’s exposure and your budget, not to a supplier’s incentive. That matters in Ontario, where a north-side roof facing the Cajon Pass wind corridor needs different fastening than a sheltered south-side roof in the same subdivision.
Styles & brands we work with
Roof Installation in Ontario
Roof Installation in Ontario means more than nailing down new shingles, it means building a roof that stays put when the Santa Anas hit and doesn’t cook itself apart under 100-degree August heat. A full tear-off and re-roof on a typical Ontario home runs $11,500 to $24,000 for architectural shingles, while larger two-story homes or steep pitches land between $22,000 and $34,000 depending on material and complexity.
What A Proper Tear-Off Involves
We strip down to the decking every time. No re-roofs over old shingles, because the original builder-grade layers on Ontario’s mid-century homes are exactly what hides failed underlayment and soft decking until the next wind event peels the top layer back. We inspect every sheet of plywood or plank before anything new goes down.
New Construction And Additions
For new construction in Ontario’s north and east growth areas, we coordinate decking, underlayment, and tile or shingle installation to the wind and exposure conditions of the specific lot. Homes near the Cucamonga and Etiwanda wind paths get fastening upgrades and ridge ventilation spec’d in from day one, not retrofitted after the first storm.
Roof Replacement Contractor in Ontario
When you hire a Roof Replacement Contractor in Ontario, you’re hiring someone to manage what happens after the first layer comes off, and that’s where we earn the call. Expect $12,000 to $28,000 for a standard tear-off and architectural shingle replacement on a mid-century single-story in 91762 or 91764, with the final number driven by decking condition, flashing work at patio transitions, and any framing repairs the permit inspection flags.
Full Roof Replacement
We handle complete tear-offs across Ontario’s older central neighborhoods, where shallow-pitch low-slope sections and attached patios create flashing details that generic crews get wrong. Our Roof Replacement team writes decking and framing allowances into every contract before tear-off so you’re never approving a surprise number mid-job.
Flat Roofing And Roof Decking Replacement
Flat and low-slope sections on Ontario homes collect monsoon debris and pond water, which means failed underlayment leaks long before the surface looks worn. When we open those sections up, we replace damaged decking rather than layering over it, and we cut back dried sealant at every penetration before new membrane goes down.
Trusted Brands We Service in Ontario
We’re authorized installers for seven major manufacturers, so your Ontario roof gets matched to your home’s reality instead of a one-brand pitch. Premium options like GAF and CertainTeed hold up well on steep wind-exposed slopes, while Tamko and IKO give budget-conscious homeowners in older tracts a solid product at a lower installed price. For concrete tile and Boral profiles on newer north-side two-story homes, we spec fastening systems rated for the wind uplift Ontario actually gets, not the minimum a generic crew would use. Material lead times vary, but we quote real availability dates for Ontario jobs, not optimistic guesses.
See the difference
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AfterCommon Roof Replacement Problems We See in Ontario Homes
- Santa Ana wind shear on windward slopes. North-side and foothill-adjacent homes in Ontario take the full force of wind funneling down from the Cajon Pass, and lifted shingle tabs or sheared ridge caps are the first signs the fastening pattern wasn’t rated for the real uplift load. We check nail count and placement pattern before we ever quote a replacement.
- Dried and failed underlayment on low-slope sections. Ontario’s mid-century homes were built with shallow pitches that hold monsoon debris and pond water, and the original underlayment on those sections is often cracked and brittle by year twenty. The shingles above it can look fine while the roof below is ready to leak.
- Soft decking at penetrations. Every plumbing vent, furnace flue, and patio transition on an older Ontario home is a likely spot for water intrusion that rotted the decking underneath. We find it during tear-off, price it as an approved allowance, and replace it before any new material goes down.
- Thermal expansion cracking on flat and low-slope sections. Inland Empire summers regularly push past 100°F, and that heat cycles flat roofing membranes and sealant until they crack and pull away. Replacement on those sections means addressing the expansion joints properly, not just recoating over failed seams.
Pricing for Roof Replacement in Ontario, CA
Here’s what Ontario homeowners actually pay, based on the jobs we’ve completed in 91761, 91762, 91764, and the north-side growth areas. A standard tear-off and architectural shingle replacement on a mid-century single-story runs $11,500 to $18,500 for a simple gable or hip roof with one or two penetrations. Larger two-story homes with steep pitches, concrete tile, or multiple flat sections land between $20,000 and $34,000. Decking replacement, when tear-off exposes it, typically adds $2 to $4 per square foot depending on how much comes up. Flat and low-slope section replacement runs $9 to $15 per square foot. Call (833) 589-7971 for a written line-item quote on your specific Ontario home, estimates are free and we’ll walk the roof with you if you want to see what we see.
We Also Serve Cities Near Ontario
Our crews cover the Ontario area daily, and we regularly replace roofs in Montclair, Upland, Chino, and San Antonio Heights. If you’re in one of those communities and need a full-lifecycle roofing team that inspects, repairs, and replaces, call (833) 589-7971. The same seven-brand material options and the same written-allowance approach apply wherever your roof sits.
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 Roof Replacement in Ontario
Because the original builder-grade shingles on those mid-century 91761, 91762, and 91764 homes hide what’s underneath: failed underlayment, soft decking at penetrations, undersized framing, and wiring that a permit inspection flags once walls and decking are open. We handle this by inspecting first and writing decking and framing allowances into the contract before tear-off, so any change is priced and approved in writing before we touch it. Call (833) 589-7971 and we’ll show you exactly what we look for before you sign anything.
We fasten to the manufacturer’s high-wind spec for your specific exposure, not the minimum regional code allows. That means checking the nailing pattern and nail type against the shingle’s wind rating, upgrading to six nails per tab where the Cajon Pass wind path hits hard, and making sure ridge caps are mechanically fastened rather than relying on sealant alone. If you’re on the north side off the Etiwanda or Cucamonga corridors, wind is your main failure driver and we spec for it. Call (833) 589-7971 for a wind-specific assessment of your roof.
Line-item by line-item, with the decking allowance stated explicitly on both. A bid that’s $4,000 cheaper but leaves out decking replacement or ice and water shield is going to come back with a change order the moment tear-off starts. Ask each contractor what they’ll charge per sheet of plywood replaced, whether framing corrections are included, and what permit and inspection costs cover. Then call us at (833) 589-7971 with the other bid in hand and we’ll walk through the differences honestly.
Yes, and it’s where most Ontario replacement crews make their mistakes. Those transitions between pitched roof, flat section, and attached patio cover are flashing and drainage details that leak quietly for years before anyone notices. We inspect every transition point before quoting, write the flashing and decking work into the contract as a priced line item, and replace membrane and flashing together so water never finds a seam. Call (833) 589-7971 if you suspect a patio transition leak, we’ll tell you what we find.
It is, though less for scheduling than for material and installation choices. Ontario’s regular 100-plus-degree days cook asphalt shingles and dry out sealant faster than coastal climates, which is why granule loss and cracked sealant show up early on aging roofs here. We install to manufacturer heat specs and, when practical, sequence tear-off to avoid the worst afternoon heat. The bigger timing factor is wind: we won’t start a tear-off with a Santa Ana event forecast, because an exposed deck in high wind is a liability. Call (833) 589-7971 to discuss timing for your specific roof.
Ready to talk specifics? Call Hollywood Roofing Co at (833) 589-7971 for a free roof replacement estimate in Ontario. We’ll inspect the roof, write real numbers, and treat your home like we’d want ours treated.
Written by Roland Vega, Owner at Hollywood Roofing Co, serving Ontario homeowners with straight answers and written quotes.