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 $8,500 – $16,000 for a standard asphalt shingle roof on a 1,500 – 2,200 sq ft home, with concrete tile running higher. Most tear-offs and re-roofs in Ontario take 3 – 5 working days once materials are on site. If you’re weighing repair against replacement after another hot Inland Empire summer or a Santa Ana wind event, call (866) 321-6172 and we’ll give you a straight answer, not a sales pitch.
We work across Ontario’s older tract neighborhoods, the newer subdivisions east of the 15, and the tight lots near downtown and Euclid Avenue. That matters because roof replacement here isn’t the same job as it is in LA County. The heat loads, wind patterns, and the way older homes were framed change what we recommend and how we stage the work. Our Roof Replacement team knows the difference.
Why Van Nuys Roofing Co Is Ontario’s Preferred Roof Replacement Company
Homeowners in Ontario call us because we show up, look at the roof, and tell them what’s actually going on. No “you need a new roof” speech just because it’s been ten years. We inspect first and recommend second. That’s the whole model, and it’s why a lot of our Ontario work comes from referrals rather than door knockers.
We carry manufacturer warranty eligibility across multiple brands: GAF, CertainTeed, Owens Corning, and more. That means when we recommend a material for your Ontario home, we’re recommending it because it fits your roof, your budget, and the wind and heat exposure on your street. Not because a supplier gave us a spiff. Your roof, your material choice. We’re fluent in seven major brands, and that’s rare in this market.
Led by Rick Dominguez, our crew has replaced and repaired roofs all over Ontario, from the 91762 corridor near the airport to the older 91764 pockets up toward San Antonio Heights. We know which neighborhoods see the worst Santa Ana gusts and which 1950s tract homes still have original sheathing that needs to be assessed before we quote. That local knowledge changes the estimate and the job.
Styles & brands we work with
Roof Replacement Contractor in Ontario
A Roof Replacement Contractor in Ontario is who you call when a roof has reached the end of its serviceable life, and patchwork repairs no longer make financial sense. In Ontario’s older tract housing stock, that often means a 1950s – 1970s built-up or shingle roof that’s lost granules, has cracked flashing, or has been leaking at penetrations after winter rain. On newer 1980s – 2000s tile roofs, it more often means widespread tile cracking from thermal cycling. A full replacement on a typical Ontario home runs $8,500 – $16,000 depending on material, square count, and whether the existing underlayment can be reused or needs full tear-off to the decking.
Full Tear-Off and Decking Assessment
On many Ontario homes built before 1980, the decking is original plywood or spaced board, and we won’t know its condition until the old roof comes off. We inspect the decking after tear-off, replace any rotted or warped sections, and only then install the new underlayment and roofing. This is not a change-order trick. It’s what a honest replacement requires on aging Ontario housing stock.
New Construction Roofing
For Ontario homeowners building an ADU, a garage conversion, or a new home in one of the city’s newer infill areas, we handle new construction roof installation from bare decking to finished roof. On new builds in Ontario, Title 24 cool-roof requirements often push material selection toward lighter-colored shingles or tile, and we’ll steer you through what actually satisfies code versus what just satisfies a checklist.
Asphalt Shingle Roof Replacement in Ontario
Asphalt Shingle Roof Replacement in Ontario is the most common job we do, simply because most of the city’s housing stock was built when asphalt shingles were the default material. On a standard Ontario ranch or two-story built between 1950 and 1980, a full shingle replacement typically runs $8,000 – $13,000 including tear-off, new underlayment, drip edge, and architectural shingles. For larger homes or homes with steep roof planes and complex hips and valleys, that number can push to $16,000.
Architectural Shingle Systems
When we replace a shingle roof in Ontario, we default to architectural shingles like GAF Timberline HDZ or Owens Corning Duration. They hold up better against the Santa Ana wind gusts that tear three-tab shingles off west- and north-facing slopes. The heavier weight and wider nail strip also help with Ontario’s heat, which causes cheaper shingles to curl and lose tabs.
Underlayment and Secondary Water Barrier
Ontario’s winters are dry until they aren’t. When a storm hits, it hits hard, and older shingle roofs in Ontario leak at flashings and valleys because the original underlayment has deteriorated. On every replacement, we install a secondary water barrier in valleys, at eaves, and around penetrations. For homes in exposed wind corridors near the foothills, we also add a full synthetic underlayment rather than basic felt. It costs a little more and it’s worth it.
Trusted Brands We Service in Ontario
We work with seven major roofing manufacturers, and we’re fluent in the specs and installation requirements for each. In Ontario, that matters because a shingle that works fine in Orange County may not be the right call for a roof that takes 100°F heat for weeks and then gets hit with 50 mph gusts. GAF, CertainTeed, Owens Corning, Boral: we know these systems, we know their warranty requirements, and we know which one to put on your roof based on how your house sits and what the wind does on your street. If it goes on a roof, we know it.
Common Roof Replacement Problems We See in Ontario Homes
- Shingle tabs torn off west- and north-facing slopes after Santa Ana winds. This is the pattern we see after every wind event in Ontario: three-tab shingles with improper nailing patterns or missing starter strips lift and tear. Architectural shingles with proper fastening largely eliminate this failure mode.
- Leaks at flashings and pipe penetrations during intense winter rain. Ontario’s long dry spells hide deteriorating underlayment, and when a real storm hits, water finds the weak points. Replacement with new flashing, proper underlayment, and ice-and-water shield in valleys stops this.
- Premature tile cracking on 1980s – 2000s concrete tile roofs from thermal cycling. When ridge vents are blocked or inadequate, heat builds in the attic, and tiles expand and contract until they crack. We assess ventilation as part of every tile replacement in Ontario.
- Original sheathing failure on 1940s – 1960s tract homes. Many older Ontario homes near Euclid Avenue and downtown still have original plank or thin plywood decking. If we don’t catch it during tear-off and replace rotted sections, the new roof won’t perform.
See the difference
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AfterPricing for Roof Replacement in Ontario, CA
A standard asphalt shingle roof replacement in Ontario runs $8,000 – $13,000 for a typical 1,500 – 1,800 sq ft home with architectural shingles. Larger homes or complex rooflines run $12,000 – $16,000. Concrete or clay tile replacement on Ontario’s 1980s – 2000s subdivisions typically starts around $18,000 and can reach $30,000 depending on square count, underlayment requirements, and whether the battens need replacing. Flat or low-slope built-up roofs on older Ontario tracts usually fall between $10,000 and $15,000 for a full tear-off and re-roof. What moves the number: roof size in squares, material choice, decking condition, access for staging, and whether you need party-wall coordination. A roof with no driveway and limited street access costs more to stage than a wide-lot subdivision home. Call (866) 321-6172 and we’ll give you a written line-item quote.
We Also Serve Cities Near Ontario
Our Roof Replacement in Ontario service extends to the surrounding communities: Montclair, Upland, Chino, and San Antonio Heights. The same crew, the same multi-brand expertise, the same inspection-first approach. If you’re just outside city limits, you’re still inside our service area.
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
We stage materials on the street or in a nearby right-of-way, and we use a conveyor to move shingles and tear-off debris without hauling them through the house or across a neighbor’s property. A tight lot with no driveway adds staging cost to the quote because it changes how long the job takes and how we protect the surrounding area. Call (866) 321-6172 and we’ll walk the site before quoting so there are no surprises.
Yes, in most dense Ontario neighborhoods, you’ll need to give adjacent property owners notice before we start. If your home shares a wall or the roof edge is within a few feet of a neighbor’s property, we coordinate access and protection with them before tear-off begins. This is standard for Ontario’s older tract homes and downtown-adjacent streets, and it’s built into how we schedule and quote the job.
Ontario requires a building permit for full roof replacements, and we pull the permit for you as part of the job. The city will inspect the tear-off and the final installation, and we schedule those inspections so the job isn’t held up. If your home is in an older overlay district or has historic review requirements, we’ll flag that before you sign anything.
Ontario’s heat and wind favor heavier, properly fastened materials: architectural shingles with a wide nail strip, or concrete tile with adequate ridge ventilation and battens. Lightweight three-tab shingles fail early here, and tile without ventilation cracks from thermal cycling. We’ll recommend a material based on how your roofline faces the wind and how much attic ventilation your home has.
Most Ontario homes range from 18 to 28 roofing squares, and the square count is the single biggest driver of material and labor cost. A 20-square shingle roof at $400 – $450 per square lands around $8,000 – $9,000, while a 28-square roof at the same rate pushes past $12,000. We measure every roof in person and give you the square count on the quote so you know exactly what you’re paying for.
Schedule Your Free Roof Replacement Estimate in Ontario
If your roof is showing its age or you’re tired of chasing leaks after every wind event, call (866) 321-6172. We’ll inspect the roof, give you a written line-item estimate, and tell you whether repair or replacement actually makes sense for your Ontario home. No pressure, no brand steering, just a straight answer from a crew that knows this city’s roofs.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving Ontario and the Inland Empire.