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 Rancho Cucamonga
Roof replacement in Rancho Cucamonga typically runs $11,500 – $26,000 for a standard single-family home, with concrete tile tear-offs on 1960s – 1980s tract homes landing at the higher end and asphalt shingle replacements on smaller flatland houses at the lower end. The final number depends on what’s underneath the old roof: decking condition, underlayment age, and whether a permit triggers framing or ventilation upgrades. We serve every Rancho Cucamonga zip code, from the wind-scoured 91730 corridor to the foothill subdivisions of 91737 and 91739, and we’ll give you a written line-item quote before we touch anything. Call (877) 588-7942 to schedule your free estimate.

Ridgeway Roof Repair has been replacing roofs across Rancho Cucamonga long enough to know that a tile roof here is never just a tile roof. Under those 40-year-old concrete tiles sits underlayment that the Inland Empire sun has baked fragile. We inspect the decking before we quote, write allowances into the contract for what we might find, and get your written approval before any surprise turns into a change order. That’s how a roof replacement should work in this city.
Why Ridgeway Roof Repair Is Rancho Cucamonga’s Preferred Roof Replacement Company
We only do roofing. Not plumbing, not siding, not handyman work. Every one of our technicians, every truck, every conversation centers on one thing: getting your Rancho Cucamonga home a roof that actually holds up to the Santa Anas and the summer heat. That single-trade focus means we know the failure patterns specific to this city’s housing stock, from the flatland tracts of 91730 to the larger foothill homes in 91739.
Roland Cifuentes, our owner, has built the company around one principle: recommend the right material for the roof, not what’s convenient to stock. That’s why we install and service products from seven major manufacturers, including GAF, Atlas, and Tamko. We’re not tied to a single brand’s line, so your replacement is matched to your roof’s actual exposure, slope, and failure history.
Rancho Cucamonga homeowners call us because we explain what we’re going to do before we do it. When we replace a roof on a 1970s concrete-tile tract home near the 91730 corridor, we tell you what we expect to find under the tile before we start. We don’t wait until the old roof is in the driveway to mention that the underlayment disintegrated. Our written quotes account for the known unknowns here, and any genuine surprise gets priced and approved in writing before we proceed.
Our full-service coverage runs from inspection through repair to full Roof Replacement, so the same crew that identifies a problem on your Rancho Cucamonga roof can also fix it or replace the whole thing without handoffs. You’ll deal with one company, one owner’s standards, and one accountability from the first inspection to the final nail.
Styles & brands we work with






Flat Roof Replacement in Rancho Cucamonga
Flat roof replacement in Rancho Cucamonga runs $9,800 – $19,500 depending on system type, insulation depth, and whether the decking underneath has been compromised by years of pooled water and UV exposure. Many flatland homes in the 91730 corridor have low-slope or fully flat sections, especially on additions, carports, and mid-century builds. The failure mode here is different from sloped roofs: standing water after winter rains, cracked seams in single-ply membranes, and dried-out flashing at parapet walls.
Low-Slope Systems for Inland Empire Heat
We install TPO, modified bitumen, and built-up systems that are selected for how they handle Rancho Cucamonga’s intense UV. A dark asphalt built-up roof will absorb 150°F surface temperatures in July, while a white TPO membrane reflects most of it. For flat roofs in this city, reflectivity isn’t a preference, it’s a lifespan calculation.
Decking and Insulation Upgrades
Flat roofs on older Rancho Cucamonga homes often sit on 2×6 or 2×8 decking with minimal insulation. When we open up a 1970s flat roof, we typically find dry-rotted sections where water pooled against parapet flashings. Our quotes include a decking allowance per sheet, and we replace insulation with code-compliant rigid foam before the new membrane goes down.
Roof Installation in Rancho Cucamonga
Roof installation in Rancho Cucamonga for new construction or full tear-off replacement runs $12,000 – $24,500, with architectural shingles on the lower end and concrete tile or standing seam on the upper end. We handle both new builds in the foothill subdivisions of 91737 and 91739, where larger 1990s – 2000s stucco homes demand complex valley and hip geometry, and full replacements on the classic 1960s – 1980s tract homes throughout 91730 and 91701.

New Construction Roofing
For new construction, we coordinate with your general contractor on sheathing inspections, ventilation requirements, and the specific underlayment and tile or shingle system specified in the plans. Rancho Cucamonga building codes require specific ventilation ratios and wind mitigation details, and we pull permits and pass inspections as part of every install.
Architectural Shingle Installations
Architectural shingles hold up well in Rancho Cucamonga’s heat when paired with proper attic ventilation. Many foothill homes with 2000s-era three-tab shingles are reaching end of life, and homeowners are upgrading to GAF Timberline or similar architectural profiles. The thicker shingle resists UV degradation better and handles Santa Ana wind uplift with proper nailing patterns.
Trusted Brands We Service in Rancho Cucamonga
We install and service roofing systems from GAF, Atlas, Tamko, and four other major manufacturers, which means your Rancho Cucamonga replacement isn’t limited to whichever product line a single-brand contractor happens to promote. If your 91737 foothill home needs a cool-roof shingle that reflects Inland Empire heat, we’ll spec it. If your 91730 flatland home needs a specific tile profile to match the original 1978 aesthetic, we’ll source it. We maintain relationships with local supply yards across the Inland Empire, so materials for Rancho Cucamonga jobs turn around quickly, often within the same week we finalize your contract.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Rancho Cucamonga Homes
- Baked-fragile underlayment under intact tile. Original 40-year-old underlayment on 1960s – 1980s concrete tile roofs has been cooked by Rancho Cucamonga’s UV and tears apart at valleys and penetrations the moment the tile is lifted. The tile looks fine, but the waterproofing layer underneath is dust.
- Santa Ana ridge and east-slope tile loss. After high-wind events, east-facing slopes in the 91730 flatland corridor routinely show shifted or missing ridge tiles. Water gets past the tile and sits against the underlayment, rotting decking that only shows up when the roof is opened.
- Heat-blistered shingles in foothill zones. Homes in 91737 and 91739 sit higher and get more direct sun exposure. We regularly see asphalt shingles with granule loss and heat blistering on south-facing slopes, along with dried-out flashing sealant around chimneys and skylights.
- Code-triggered upgrades once the permit is pulled. Rancho Cucamonga’s current building code requires ventilation, decking, and sometimes seismic strapping upgrades that weren’t code when the original roof went on. A roof replacement isn’t just new shingles; it’s a roof built to current standards.
Pricing for Roof Replacement in Rancho Cucamonga, CA
A standard asphalt shingle replacement on a 1,800 – 2,400 sq ft Rancho Cucamonga tract home runs $11,500 – $16,000. Concrete tile tear-off and replacement runs $18,000 – $26,000, largely because the old tile has to come off, the decking typically needs some sheathing replacement, and the new tile is heavier and more labor-intensive. Flat roof sections add $9,800 – $19,500 depending on system and insulation. Foothill homes in 91737 and 91739 with complex hips, valleys, and steeper pitches trend toward the upper end. Every quote we write includes a decking allowance per sheet, so if we find rotten sheathing under your old tile, the cost is already accounted for. Call (877) 588-7942 to schedule your free estimate and get exact numbers for your address.
We Also Serve Cities Near Rancho Cucamonga
Beyond Rancho Cucamonga, our roofing crews cover San Antonio Heights, Upland, Ontario, and Fontana. If you’re in one of those neighboring cities and dealing with the same Inland Empire heat, wind, or aging tile, the same team that handles Roof Replacement in Rancho Cucamonga can inspect and quote your roof, too.
Serving Rancho Cucamonga, CA — Our Local Coverage Area
We’re based in the Rancho Cucamonga 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 Rancho Cucamonga
The most common reason is rotten decking hidden under 40-year-old underlayment. Original tile roofs in Rancho Cucamonga often have underlayment that crumbles to powder at valleys and penetrations once it’s exposed, and water damage underneath that only becomes visible after the tile is lifted. We write a per-sheet decking allowance into every contract before we start, so if we find two rotten sheets or eight, you already know the unit price. Any additional finding gets priced in writing and approved by you before we touch it. Call (877) 588-7942 for a quote that accounts for this upfront.
Yes. The 91730 corridor gets hammered by Santa Ana winds, so flatland homes need attention to ridge tiles, east-slope fastening, and wind-uplift resistance. Foothill homes in 91737 and 91739 sit higher with more direct sun exposure, so the dominant issues are heat-blistered shingles, UV-degraded underlayment, and dried-out flashing sealant. A replacement scope written for one zone is often wrong for the other, which is why we inspect each roof before quoting. Call (877) 588-7942 to get a zone-specific assessment.
Current Rancho Cucamonga building codes typically require upgraded ventilation ratios, new drip edge, ice and water shield at eaves, and sometimes improved nailing patterns for wind resistance. On older homes, we also check the decking attachment and replace any sheathing below code thickness. These upgrades are written into the permit scope and inspected by the city, so you end up with a roof built to 2025 standards, not 1978 standards.
Put the two quotes side by side and check three things: whether the decking allowance is stated per sheet, whether the underlayment type and brand are specified, and whether the permit and inspection line items are included. A lower bid that omits decking replacement will climb once the tile comes off. A higher bid that already accounts for Rancho Cucamonga’s known failure patterns is usually the honest number. We’ll walk you through any competing quote you have and tell you what’s missing or underpriced. Call (877) 588-7942 and we’ll review your current bid with you.
Yes, and we do it regularly. The tile itself often has decades left, but the underlayment underneath is typically shot. We remove the tile, inspect the decking, replace any compromised sheathing, install new modern underlayment, and then either reinstall the original tile if it’s intact or install new tile matched to the original profile. For 1970s tract homes in the 91730 corridor, we’ve pulled original tile and found underlayment that crumbled to powder at the valleys. Call (877) 588-7942 to schedule a free inspection and get an exact scope for your tile roof.
Written by Roland Cifuentes, Owner at Ridgeway Roof Repair, serving Rancho Cucamonga and the Inland Empire since our founding.