Architectural shingles
Metal roofing
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GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Trusted Roof Replacement for Ontario Homeowners
Roof replacement in Ontario, CA typically costs between $8,500 and $22,000 for a standard asphalt shingle roof on a 1,500 to 2,500 square foot home, with most projects completed in 2 to 5 days once materials arrive. That’s the straight answer. What that range doesn’t tell you is whether you actually need a full replacement, a repair, or just a documented inspection to know where you stand. Hawk Roof Repair, led by Noel Ibarra, does all three under one name, which means the person who inspects your roof is the same company that would replace it, not a sales rep working on commission from a ladder. We work with seven leading material brands – GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – so the recommendation you get is based on your Ontario home’s slope, exposure, and budget, not on whatever we happen to have in the warehouse. Call (877) 731-1384 to schedule an inspection or a free replacement estimate.
Key Takeaways
- Roof replacement in Ontario runs $8,500 to $22,000 for most asphalt shingle homes, depending on size, pitch, tear-off requirements, and material grade.
- Hawk Roof Repair offers seven material brands – GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – so the material fits your home, not our inventory.
- Every project starts with a standalone inspection. You get a documented condition report before any replacement conversation begins.
- Replacement is one service in a full lifecycle offering. Inspection, repair, and replacement are handled by the same team, same number, same accountability.
Styles & brands we work with
Roof Installation
Roof Installation is the complete process of removing your existing roof down to the deck and installing a new roofing system, including underlayment, flashing, ventilation, and the finished surface. Homeowners in Ontario typically need this when the existing roof has reached the end of its service life, when multiple layers of old roofing are present, or when structural issues beneath the shingles make a patch job pointless. Hawk Roof Repair approaches every installation with an inspection-first protocol, meaning we scope the deck condition, ventilation adequacy, and existing flashing performance before the first bundle of shingles arrives. A full roof installation in Ontario generally runs $8,500 to $22,000 depending on square footage, pitch, and the material grade you select from our seven-brand lineup. Call (877) 731-1384 for a written line-item quote at no charge.
Tear-Off vs. Overlay
California building code allows a maximum of two roofing layers in most jurisdictions, but Ontario’s summer heat and occasional Santa Ana wind events make a full tear-off the more durable choice. We remove the old material completely, inspect the deck for rot or fastener failure, and start fresh on a surface we can verify. Overlays hide problems; tear-offs reveal them.
Deck Preparation and Underlayment
The deck is the structural surface everything sits on, and it’s where we spend the most time before materials go down. In Ontario’s older neighborhoods south of the 10 freeway, we regularly find plywood delamination from years of trapped attic moisture. We replace damaged sections, re-nail the deck to code, and install a high-performance synthetic underlayment that protects against wind-driven rain.
Roof Replacement Contractor
A Roof Replacement Contractor is a licensed specialist who manages the removal of an old roof and the installation of a new one, handling everything from permits to waste disposal to final inspection. Choosing the right contractor in Ontario matters more than choosing shingles, because the installation quality determines whether a 30-year roof lasts 30 years or 12. Hawk Roof Repair operates as a single point of contact from first inspection through completed installation, with Noel Ibarra directly involved in project scoping and quality checks. See our guide to how much Roof Replacement costs in Ontario, where prices start around $8,500 for smaller single-story homes and climb to $22,000 or more for larger two-story properties with steep pitches and premium materials. We provide a written scope of work with fixed pricing before any contract is signed.
Material Choice Without a Manufacturer Lock
Most contractors in the Inland Empire are certified installers for one brand, which means every quote you get is for that brand whether it suits your roof or not. We install GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That’s seven distinct product lines, each with different price points, aesthetic profiles, and warranty structures. If your Ontario home sits in a historic district near Euclid Avenue with specific architectural requirements, we can match the look. If you need maximum wind-uplift resistance for the exposed slopes near the 60 freeway corridor, we can spec that too.
Permits, Inspections, and Paperwork
The City of Ontario requires building permits for full roof replacements, and failing to pull one creates real problems when you eventually sell the home. We handle the permit application, schedule the city inspection, and make sure the job passes the first time. Our history with Ontario’s building department means we know what inspectors look for, from nailing patterns to fire-rated underlayment in urban-wildland interface zones.
Asphalt Shingle Roof Replacement
Asphalt Shingle Roof Replacement is the most common roofing project in Ontario, accounting for roughly 75% of the residential roofs in the city, using fiberglass-reinforced shingles from major manufacturers installed over a new underlayment system. Homeowners choose this route when their existing shingles show granule loss, curling, cracking, or when a roof is 20 to 25 years old and approaching the end of its useful life. Hawk Roof Repair offers asphalt shingle replacement across all seven of our material brands, from entry-level three-tab systems to architectural and designer shingles rated for 130 mph winds. Pricing for asphalt shingle replacement in Ontario averages $8,500 to $16,000 for most homes, with premium lines like CertainTeed’s Landmark Pro or GAF’s Timberline Ultra HD adding $1,500 to $4,000 depending on square footage. Every estimate includes tear-off, underlayment, installation, drip edge, flashing, and haul-away.
Climate Considerations for Ontario Roofs
Ontario’s inland location means hotter summers than coastal cities, with rooftop temperatures regularly exceeding 140 degrees during July and August. That thermal cycling causes cheap asphalt to dry out and crack prematurely, so we recommend shingles with enhanced granule adhesion and higher reflectivity ratings. Owens Corning’s Duration series and Atlas’ Pinnacle line both perform well in high-heat environments, and we can show documented performance data during your estimate.
Ventilation and Attic Health
A shingle replacement that ignores ventilation is a future warranty claim waiting to happen. Ontario’s hot attic conditions cook shingles from below when ridge and soffit ventilation are inadequate. During every replacement, we calculate the attic’s ventilation requirements based on square footage, measure existing intake and exhaust capacity, and add ventilation where the math says it’s needed. This is standard practice for us, not an upsell.
New Roof Installation
New Roof Installation refers to installing a roofing system on a home that has never had one, such as new construction, an addition, or a complete rebuild after damage, which differs from Roof Replacement in Ontario. Fewer Ontario homeowners need this than replacement, but those who do face a different set of challenges: the roof deck is often newly installed and still settling, and the structural load calculations have to account for decades of seasonal movement. Hawk Roof Repair handles new installations with the same inspection-first discipline we apply to replacements, verifying deck fastening, drainage slope, and overhang dimensions before any roofing material goes down. New roof installation in Ontario typically runs $10,000 to $19,000 for a standard residential home, with costs driven by complexity, height, and the material system you select. We’ll quote it as a standalone project, not a continuation of someone else’s unfinished work.
Integration with New Construction
If you’re building in one of Ontario’s newer developments near the 15 freeway or adding a second story to a home in the older grid streets around downtown, sequencing matters. We coordinate directly with your general contractor or framing crew to ensure the roof is installed at the right stage, with proper flashing integration at walls, chimneys, and skylights. Our crews are used to working around active job sites without delaying other trades.
Warranty Documentation from Day One
A new roof’s warranty starts on installation day, and documentation matters if you ever need a claim. We register every material warranty with the manufacturer within 30 days of completion and provide you with a complete file: material specs, installation photos, inspection sign-offs, and warranty paperwork. When you sell the home, that file transfers with it, which is a real selling point for Ontario buyers who ask about roof condition during escrow.
Reroofing
Reroofing is the process of installing a new roof over an existing one, also called an overlay, and it costs less upfront than a full tear-off replacement. It’s legal in California only when the existing roof is a single layer, in fair condition, and there’s no moisture trapped in the deck. Hawk Roof Repair performs reroofing when it’s genuinely appropriate, and we’ll tell you when it isn’t. The average reroof in Ontario runs $6,000 to $12,000, which is roughly 25% to 30% less than a full tear-off replacement because you’re skipping demolition and disposal costs. But the savings come with a catch: you’re putting new material over a structure we can’t fully inspect. If our inspection reveals signs of moisture damage, uneven decking, or soft spots, we’ll recommend a tear-off instead, and we’ll show you the evidence in the inspection report.
When Reroofing Makes Sense
An overlay works when the deck is sound, the existing shingles lay flat, and the home has never had more than one roofing layer. In Ontario’s newer subdivisions built after 2000, many roofs qualify. The weight of a second layer is within structural tolerance, and the extra layer adds some insulation value, which helps with attic temperatures during summer.
Limitations You Should Know
Reroofing shortens the life of the new shingles. A 30-year architectural shingle installed over an existing roof typically lasts 20 to 22 years because heat transfers differently through a double layer, and the old roof’s irregularities telegraph through. Manufacturer warranties also differ for overlay installations; some brands reduce coverage or require specific underlayment treatments. We spell all of this out in writing before you commit to anything.
Flat Roof Replacement
Flat Roof Replacement involves removing and replacing the membrane system used on low-slope or no-slope roofs, which are common on mid-century modern homes, patio covers, and some commercial-adjacent residential structures throughout Ontario and nearby communities offering Chino Roof Replacement. Unlike shingle roofs that shed water by gravity, flat roofs rely on a continuous waterproof membrane that must hold standing water during the brief but intense winter rains that hit the Inland Empire. Hawk Roof Repair services flat roof replacements using modern membrane systems selected from our brand partners, including CertainTeed’s Flintlastic and GAF’s Liberty systems. Flat roof replacement in Ontario typically runs $9,000 to $18,000 depending on square footage, the number of penetrations like vents and skylights, and whether the existing roof needs complete tear-off. These projects take 3 to 7 days on average and require specialized torch, adhesive, or mechanically fastened application techniques.
Ponding Water and Drainage Correction
The most common flat roof failure we see in Ontario is ponding: water that sits on the roof for more than 48 hours after rain. The ultraviolet breakdown from our intense summer sun accelerates membrane damage wherever water concentrates. During every flat roof replacement, we evaluate the roof’s slope and drainage design, and we’ll add crickets or tapered insulation where ponding has been a problem. A new membrane over a bad drainage design is a future leak, not a fixed roof.
Material Selection for Low-Slope Systems
Flat roofs demand different materials than pitched roofs, and the choice between modified bitumen, TPO, and EPDM depends on your roof’s specific conditions. Modified bitumen systems handle foot traffic well and resist the thermal shock of Ontario’s hot days and cold nights. TPO reflects heat efficiently, which reduces cooling load in summer. We’ll walk you through the tradeoffs in plain language, with pricing for each option, before you choose.
Brands We Service
Hawk Roof Repair installs GAF materials because they offer the most widely available architectural shingle lines, and their Golden Pledge warranty is one of the strongest in the industry when installed by a certified contractor. CertainTeed’s Landmark and Presidential lines give Ontario homeowners a step up in aesthetic quality with superior color consistency and dimensional profile. Tamko’s Heritage series occupies a middle price point with solid wind ratings and a wide color palette that works well on the Spanish and ranch-style homes common throughout Ontario’s older neighborhoods. Boral’s stone-coated steel and premium tile products serve homeowners who want a distinctive look beyond standard asphalt without the weight of traditional tile.
We stock accessories, flashing components, and underlayment systems compatible with Owens Corning, IKO, and Atlas product lines as well, so maintenance work on an existing roof never forces a brand mismatch. Whether you have GAF, CertainTeed, Tamko, Boral, or any other major brand on your roof, we can service it properly with the right components.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- Granules in your gutters or at downspout bases. Asphalt shingles shed granules as they age. When you see visible accumulation, the shingles have lost a significant portion of their protective UV layer. In Ontario’s high-sun climate, this degradation accelerates quickly once it starts.
- Curling, lifting, or missing shingles along the roof edges. Edge shingles take the most wind stress during the Santa Ana events that blow through the Inland Empire each fall. Lifted edges expose the underlayment and create entry points for wind-driven rain, which is exactly how a localized problem becomes a whole-roof problem.
- Water stains on ceilings or walls after rain. A stain means water has already penetrated the roof, saturated insulation, and followed the path of least resistance to your drywall. By the time you see it, the leak has been active for a while. Document it, call us, and we’ll trace it to the source, which isn’t always directly above the stain.
- Sagging or uneven roof lines visible from the street. A roofline that dips between rafters indicates deck failure, which can mean water damage, structural overload, or both. This is a safety issue, not just a cosmetic one. Ontario’s building codes exist for a reason, and a sagging roof is a code violation waiting to be flagged if you ever list the home.
- Age: 20 years or more on the current roof. Most asphalt shingle roofs in Ontario last 20 to 25 years depending on ventilation, sun exposure, and material quality. If you’re past the 20-year mark and haven’t had a professional inspection in the last three years, you’re operating on borrowed time. An inspection costs far less than the interior damage a failed roof creates.
Our Process, Step by Step
- 1
Standalone roof inspection. We start every replacement conversation with a full documented inspection of your existing roof, the attic, and the surrounding drainage. You get a written report with photos, measurements, and a condition rating for each roof plane. This inspection is a separate service, and we don’t charge for it when we’re scoping a replacement. The point is information, not closing a sale on the spot.
- 2
Material and scope consultation. Noel or a senior project lead walks you through the inspection findings, explains what needs replacement and what doesn’t, and presents material options from our seven-brand lineup with honest pricing differences. We’ll show you physical samples, explain warranty structures, and give you time to decide. No pressure, no same-day-signing discounts.
- 3
Fixed-price written estimate. We provide a line-item proposal that includes all labor, materials, tear-off, disposal, permits, and any deck repairs identified during inspection. The price is fixed once the scope is agreed. If we find additional damage after tear-off, which does happen, we document it, show you photos, and get your approval before any additional work proceeds. No surprise change orders.
- 4
Installation with daily communication. Our crew handles the tear-off, deck preparation, underlayment, flashing, and shingle or membrane installation in the sequence that protects your home at every stage. You’ll know what’s happening each day. We use magnetic nail sweeps throughout the property, protect landscaping with tarps, and keep the site clean at the end of every workday.
- 5
Final inspection and documentation. When the work is complete, we walk the roof with you, show you the finished installation, and review the ventilation and flashing details. We schedule the city inspection if a permit was required, register your material warranty, and hand you a complete project file. If anything goes wrong under warranty, the same team that installed the roof handles the claim.
How Much Does Roof Replacement Cost in Ontario?
A typical roof replacement in Ontario runs $8,500 to $22,000, with the majority of single-family homes landing between $10,000 and $16,000. Here’s what that looks like in real terms: a 1,200 square foot single-story home in the older neighborhoods near Holt Boulevard with a basic architectural shingle runs $8,500 to $11,000. A 2,000 square foot two-story in the newer developments off Archibald Avenue with premium shingles, upgraded underlayment, and additional ventilation runs $14,000 to $18,000. Larger homes over 3,000 square feet with steep pitches, multiple roof planes, or tile-to-shingle conversions can exceed $20,000. Free estimates from Hawk Roof Repair include a written line-item breakdown with material costs separated from labor.
What moves the price: square footage, roof pitch (anything steeper than 6:12 adds labor cost due to safety requirements and slower work), the number of penetrations like vents and skylights, whether the deck needs repairs, whether you’re doing a tear-off or overlay, and the specific material grade you choose from our seven brands. The best way to avoid overpaying is to compare line-item quotes, not just bottom-line numbers. A low bid that leaves out permits, deck repairs, or haul-away isn’t cheaper; it’s incomplete. Every Hawk estimate includes permit fees, tear-off, disposal, underlayment, installation, flashing, and cleanup. No subtractions, no surprises. Call (877) 731-1384 to schedule yours.
Our Service Area Near Ontario
Hawk Roof Repair is based in Ontario and serves the surrounding Inland Empire communities where we’ve replaced or repaired hundreds of roofs. That includes Roof Replacement in Upland where the older housing stock near the foothills often needs deck attention during replacement, Roof Replacement in Montclair where mid-century homes present specific slope and drainage challenges, and the newer developments in Rancho Cucamonga, Chino, Eastvale, and Jurupa Valley. We also cover Claremont, Pomona, La Verne, San Antonio Heights, and Los Serranos. Response time for inspections and estimates is typically 24 to 48 hours depending on the week’s schedule. If you’re unsure whether we cover your neighborhood, call (877) 731-1384 and ask.
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.
Frequently Asked Questions About Roof Replacement in Ontario
Roof replacement is the complete removal of your existing roofing material down to the deck, followed by installation of a new underlayment, flashing, ventilation, and finished surface. It’s different from repair, which addresses isolated problems. Replacement is the right call when the roof has reached the end of its service life, has widespread damage, or has underlying deck issues that patching can’t fix. Call (877) 731-1384 if you’re not sure which category your roof falls into.
Most residential roof replacements in Ontario take 2 to 5 days once materials are on site. A standard 1,500 square foot home with a simple gable roof can often be done in 2 to 3 days. Steeper roofs, complex roof lines, tile tear-offs, or significant deck repairs add time. Weather delays happen, but our crews work efficiently and keep you informed daily.
Roof replacement in Ontario runs $8,500 to $22,000 depending on home size, roof pitch, material grade, and whether deck repairs are needed. Smaller single-story homes with basic architectural shingles sit at the lower end. Larger two-story homes with premium materials top the range. Call (877) 731-1384 for an exact quote; estimates are free.
Yes, we install and service GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral roofing systems. That means we can match your new roof to an existing aesthetic, upgrade within the same brand family, or recommend a completely different product line if it’s genuinely better for your home. Call (877) 731-1384 to discuss material options.
Emergency replacement is rare; emergency repair is common. If a tree limb or wind event damages your roof, the immediate need is to stop water intrusion, which is a repair. Replacement can follow once we’ve documented the damage for insurance and the weather cooperates. We prioritize emergency repairs and can often get to Ontario properties the same day the damage is reported. Call (877) 731-1384 if you have active water entering your home.
Warranty coverage depends on the material brand and the installation package. Most manufacturer warranties cover material defects for 25 to 50 years on architectural shingles, and some brands offer enhanced coverage that includes installation workmanship when installed by certified contractors. Hawk Roof Repair also stands behind our workmanship, and we’ll explain the specific warranty structure for any material we quote before you sign. Call (877) 731-1384 with questions about coverage.
Move vehicles out of the driveway and away from the house perimeter, clear items from walls inside the home because vibration can knock pictures loose, and let neighbors know work is happening if they share a property line. We handle the rest: tarps over landscaping, daily cleanup, and magnetic nail sweeps. We’ll also advise you on any specific preparation needed for your home’s layout during the estimate.
Schedule Your Roof Replacement Service in Ontario Today
Textbook question you should be asking: what does my roof actually need? Get the answer without the sales pressure. Call (877) 731-1384 to schedule a no-obligation inspection and free replacement estimate. You’ll get a documented condition report, straight numbers, and the time to think it through. Home is where your decision starts.
Written by Noel Ibarra, Owner at Hawk Roof Repair, providing inspection-first roofing services in Ontario, CA and surrounding communities.