Architectural shingles
Metal roofing
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 Rialto
Roof replacement in Rialto means dealing with a specific set of conditions: 100-degree summers, Santa Ana gusts funneling through the Cajon Pass, and a housing stock dominated by 1950s-to-1980s tract homes whose original 3-tab shingles are long past their service life. We know these roofs because we work on them every week. When you call Ridgeway Roof Repair at (877) 588-7942, you talk to a roofing-only contractor who understands how wind exposure, heat aging, and decades-old underlayment combine across Rialto’s neighborhoods. We’ll inspect slope-by-slope, explain exactly what’s failing, and give you a written replacement plan with real material options from competing manufacturers – not whatever we happen to stock.

Why Ridgeway Roof Repair Is Rialto’s Preferred Roof Replacement Company
We only do roofing. That’s not a slogan – it’s the entire structure of our business. Every technician on a Rialto job is a roofer first, trained on tear-offs, re-decking, flashing, and full replacement. We don’t split our attention between plumbing calls, siding patches, or handyman work. That single-trade focus matters when you’re spending five figures on a roof that has to hold up to a Santa Ana wind season.
Our reputation in Rialto has been built the slow way, through inspections that turn up an honest answer instead of a sales pitch and through replacements that match the contract to the penny. Roland Cifuentes leads our crews with a simple standard: the homeowner should know more about their roof after we leave than before we arrived. We offer seven major roofing brands – GAF, CertainTeed, Owens Corning, and more – because the right material for a wind-exposed west slope may be wrong for a shaded low-pitch ranch roof on the south side of town.
We also handle the full roofing lifecycle: inspection, repair, and Roof Replacement under one roof. That means the same company that finds the problem can fix or replace it without handoffs to another contractor who wasn’t there for the discovery.
Styles & brands we work with






Flat Roof Replacement in Rialto
Flat Roof Replacement across Rialto usually involves the low-slope sections over patio additions, garages, and carports that were tacked onto 1960s and 1970s ranch homes. These areas fail at the flashings where flat membrane meets stucco wall, or around plumbing penetrations that were never sealed properly to begin with. On a typical Rialto home, replacing a flat patio roof runs $4,500 to $9,000 depending on square footage, membrane type (modified bitumen versus single-ply), and whether the underlying wood sheathing is still sound after years of wind-driven rain exposure.
Membrane Selection for Valley Heat
Rialto’s summer UV is punishing on flat roofing. Lighter-colored membrane systems reflect more heat and hold up longer than dark asphalt roll roofing, which bakes brittle within 10 to 15 years here. We walk you through the options and recommend the membrane that fits your slope, your budget, and how long you plan to own the home.
Flashing Repairs Before Replacement
Most flat-roof leaks in Rialto aren’t actually in the field membrane – they’re at the edges. Wall transitions, scupper boxes, and pipe collars are where wind-driven monsoon rain finds a path inside. Before we install new membrane, we open those transitions, inspect the substrate, and replace any rotted wood or failed sealant. That’s the only way a flat roof replacement lasts.
Roof Installation in Rialto
Roof Installation in Rialto typically means a full tear-off and new shingle system on the low-pitch gable roofs that dominate our 1950s-to-1980s subdivisions. A standard-size Rialto ranch home runs between $11,000 and $18,000 for complete tear-off, underlayment, drip edge, and architectural shingles, depending on square count, sheathing condition, and whether the permit triggers upgrades to decking or fastening patterns. Homes with multiple roof planes or partial flat sections add cost because of the extra flashing and transition work.
Six-Nail Wind Patterns
In a valley wind corridor like Rialto, nailing pattern matters as much as shingle brand. We install architectural shingles with a six-nail high-wind pattern on slopes that catch Santa Ana gusts, not the standard four nails you’ll see on spec sheets. That’s a small labor cost that prevents the windward-slope failures our crews see after every major wind event.

Decking Evaluation Before You Sign
We inspect decking from the attic side and the top side before quoting a replacement. Rialto homes with 25-plus-year-old roofs often have water-damaged OSB or plywood that a permit inspector will require us to replace. That work goes into your written quote as a stated allowance, so you’re not blindsided when the tear-off begins. You approve the change order before we touch the wood.
Trusted Brands We Service in Rialto
We install and service products from seven major manufacturers, including GAF, CertainTeed, Owens Corning, and Boral. That matters in Rialto because one brand’s wind-rated architectural shingle may be the best fit for a west-facing slope while another offers a better budget option for a rental property you’re preparing to sell. We match material to roof, not the other way around. Local stocking means we can typically source your chosen shingles, underlayment, and flashing components within days, not weeks, so replacement schedules stay tight even during the busy spring and fall seasons.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Rialto Homes
- Wind-sheared starter strip and shingle tabs on north- and west-facing slopes. After a Santa Ana event, whole rows of 3-tab shingles lift off the windward side of older tract homes while the leeward slopes look untouched. Homeowners often don’t notice until monsoon rain leaks through the exposed underlayment.
- Brittle, heat-aged shingles with failed sealant strips. Rialto’s 100-degree summers bake the asphalt out of shingles. By year 15 to 20, the tabs no longer seal down, and any gust gets underneath. If you can lift a shingle tab easily with two fingers, it’s done.
- Improperly flashed flat sections over patios and garages. These additions were often framed and roofed without proper transition flashing at the wall line. Wind-driven rain pushes water up and over those edges, and the leak shows up inside the house, not on the roof.
- Failing decking that a permit will flag. Rialto homeowners replacing a roof for the first time in 20-plus years frequently discover rotted or undersized sheathing once the old shingles come off. The city permit process requires bringing that decking up to current code before new roofing goes on.
Pricing for Roof Replacement in Rialto, CA
A full roof replacement in Rialto runs $11,000 to $18,000 for a typical 1,400-to-2,000-square-foot ranch home, depending on shingle grade, decking condition, slope count, and whether we’re replacing flat sections at the same time. Architectural shingle upgrades typically add $1,200 to $2,500 over basic 3-tab. Flat patio or garage roof replacement adds $4,500 to $9,000 when done as part of the same project. The single biggest variable we see across Rialto is decking: older homes with water-stained sheathing or skipped nail lines trigger permit-required replacement at $3 to $5 per square foot. Call (877) 588-7942 for a free estimate with a written, line-item scope so you know exactly what you’re paying for before any work begins.
We Also Serve Cities Near Rialto
Our crews work throughout the west San Bernardino Valley. If you’re in Bloomington, Fontana, Muscoy, or San Bernardino, you’re inside our regular service area for Roof Replacement in Rialto-grade inspections and full replacements. The same roofing-only team, the same seven-brand material access, and the same written change-order process apply wherever your roof is in the valley.
Serving Rialto, CA — Our Local Coverage Area
We’re based in the Rialto 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 Rialto
Because Santa Ana winds hit Rialto from a consistent north-northeast direction, so north- and west-facing slopes take the brunt while the opposite slopes stay sheltered. Wind-driven uplift peels shingle tabs and starter strip on the windward side first. That’s why our replacement scoping always starts with a slope-by-slope wind exposure check, not just a square-foot count. Call (877) 588-7942 for a free wind-damage inspection.
Possibly, if the inspector finds rotted, delaminated, or undersized sheathing once the old roofing is torn off. Rialto code enforcement requires decking to meet current fastening and span standards before new roofing goes on. We handle this by pricing a decking allowance into your original contract, and any actual replacement gets approved by you in writing before we proceed.
Convert to total square footage. One roofing square equals 100 square feet, so a 20-square job is 2,000 square feet. A 4-by-8 sheet of decking is 32 square feet, so dividing the sheet count by 32 gives you the decking area. Ask every bidder to itemize squares for shingles, sheets for decking, and linear feet for drip edge and flashing. That’s how you compare apples to apples.
Look for a shingle rated to ASTM D7158 Class H or ASTM D3161 Class F, which covers wind uplift resistance up to 150 mph. Not every home in Rialto needs that full rating, but in the wind corridors near the Cajon Pass outflow, it’s worth the modest upgrade. We’ll tell you if your specific slope exposure justifies a higher wind-rated product from GAF, CertainTeed, or Owens Corning.
Yes, and it’s the smartest way to do it. Tackling the flat section during the main roof replacement lets us install continuous flashing at the wall transitions and tie the two systems together properly. Standalone flat-roof patches often fail because they never addressed the original transition flashing. We’ll include the flat section in your replacement quote so everything gets done under one permit and one workmanship warranty. Call (877) 588-7942 to schedule your free estimate.
Written by Roland Cifuentes, Owner at Ridgeway Roof Repair, serving Rialto and the west San Bernardino Valley.