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 West Covina
Roof replacement in West Covina runs between $9,500 and $22,000 for a typical 1,400 – 2,200 sq ft home, with most teardown-and-replace jobs landing in the $12,000 – $18,000 range depending on the material, pitch, and what we find once the old roof comes off. If you’re in the 91790, 91791, 91792, or 91793 zip codes and dealing with a roof that’s failed after decades of inland heat and Santa Ana wind, we can be at your property within a day or two to give you a written line-item estimate. Call (866) 942-0875 and we’ll tell you exactly what your roof needs and what it’ll cost before a single square gets ordered.
Why Oakmont Roof Repair Is West Covina’s Preferred Roof Replacement Company
Noel Fierro started Oakmont Roof Repair with a simple rule: inspect first, sell second. That’s why so many West Covina homeowners call us after another contractor gave them a quote without ever walking the roof or checking what’s underneath. We work across the entire San Gabriel Valley, and a lot of our week is spent in West Covina neighborhoods like the tract-home streets around Cameron Avenue, the hillside homes above Merced Avenue, and the older subdivisions off Azusa Avenue near the 10 freeway. Our crews know these homes because they open them up regularly.
Customers in West Covina tell us the same things: they want a contractor who shows up on time, gives a real number, and doesn’t change the price the moment the old roof is off. That’s how we work. Every estimate includes a decking allowance written in, so if we find deteriorated sheathing or skip-sheathing on your 1960s tract home, the cost is already scoped and approved before we touch it. We repair roofs when it makes sense and replace them when it’s time. No one on our crew is paid on commission, which means the recommendation you get is the one the roof actually needs.
We carry seven major roofing brand lines: GAF, CertainTeed, Owens Corning, and four others. That matters in West Covina because your home’s age, pitch, and exposure to wind dictate which material actually performs here, not what any single manufacturer’s rep wants to push. You get real options.
Styles & brands we work with






Roof Installation in West Covina
Roof Installation in West Covina means tearing off everything down to the decking, inspecting and replacing damaged sheathing, laying new underlayment, flashing, and the finished roof system, then hauling away every bit of the old material. We see a lot of full tear-offs in the 91790 and 91791 areas where homes still have original or once-recovered wood shake and concrete tile from the 1950s and 1960s. On those jobs, the decking is almost always the unknown. A typical tear-off and re-roof in West Covina with architectural asphalt shingles runs $11,000 – $18,000. Concrete tile replacement with new underlayment runs higher, often $16,000 – $22,000 or more depending on framing repairs and tile profile.
Re-Sheathing and Code Upgrades
Opening up a West Covina roof often reveals problems that were invisible from below: skip-sheathing, undersized rafters, or dry-rotted decking that a simple roof-over would have buried forever. We write sheathing replacement into the contract as a per-sheet allowance so you know the cost before demolition starts. When a re-roof triggers Title 24 cool-roof requirements, we handle the compliance end so the permit closes cleanly.
New Construction Roofing
For additions and new builds in West Covina, we work with your architect and the city’s permit process from the start. We install full roofing systems, including underlayment, flashing at all penetrations, and the finished material, matched to the home’s design and the San Gabriel Valley’s wind and fire requirements. New construction roofing in West Covina typically ranges from $15,000 to $40,000 depending on roof size, pitch, and material grade.
Roof Replacement Contractor in West Covina
A Roof Replacement Contractor in West Covina has to be ready for what these older homes hide, and our Roof Replacement team knows exactly what that looks like. We’ve opened up roofs in the hills west of Barranca Street where the original 1960s tile was still in place but the underlayment had turned to dust. We’ve torn off shake roofs near Lark Ellen Elementary where the decking was worse than anyone expected. That’s the job in this city: you’re not just swapping a surface, you’re restoring a system that’s been cooking in inland sun and wind for half a century.
When a West Covina homeowner needs a full replacement, we schedule a tear-off only after the estimate is signed and materials are ordered. The work day starts with tarping and protection, then removal down to decking so we can inspect what’s actually there. Every replacement includes new underlayment, re-flashing at valleys, penetrations, and edges, and the finished roof system you selected. Typical full roof replacement in West Covina runs $12,000 – $18,000 for architectural asphalt shingles on a standard tract home. Tile and premium systems run higher, $16,000 – $24,000, and we’ll show you the line items before you sign.
Tear-Off and Decking Inspection
On West Covina homes built between 1955 and 1975, our crews expect to find either skip-sheathing or undersized 1×4 decking that was never meant to hold a modern roof system. We photograph everything under the old roof and show you the findings. Damaged or inadequate sheathing gets replaced at the per-sheet rate already in your contract, not as a surprise change order.
Flat Roof Replacement
West Covina has a fair number of flat and low-slope roof additions, porch roofs, and carport roofs on older homes. Those systems fail differently than sloped roofs, usually at the seams and flashing. We tear off and replace flat roofs with reinforced membrane systems, and the cost in West Covina typically runs $9,500 – $16,000 depending on the square footage and substrate condition.
Trusted Brands We Service in West Covina
We install and service material from seven major roofing manufacturers, including GAF, CertainTeed, and Owens Corning, so a West Covina homeowner isn’t locked into whatever one contractor happens to stock. On a hillside home off Azusa Avenue that catches the full force of Santa Ana winds, we’ll often recommend a heavier architectural shingle or a tile profile rated for high wind uplift. On a flat-roof carport, a reinforced membrane makes more sense. Because we stock parts and materials across multiple brands locally, turnaround on a West Covina replacement doesn’t stall waiting on a manufacturer rep or a warehouse two counties away. Seven major brands, one trusted installer.
See the difference
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After
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AfterCommon Roof Replacement Problems We See in West Covina Homes
- Original concrete tile that looks fine but has no underlayment left. After 50+ years of inland heat, the felt underlayment on many 1960s West Covina tile roofs has crumbled to powder. The tile looks intact from the curb, but the first atmospheric-river storm sends water straight to the decking. We inspect underneath, not just the surface.
- Skip-sheathing on 1950s – 1970s tract homes. Builders in West Covina’s postwar boom often nailed roof boards with gaps meant for shake or tile, not modern shingles. When we tear off, we find gaps that have to be re-sheathed before the new system goes down. That’s a code issue and a safety issue, and it’s priced into the job from day one.
- Santa Ana wind uplift on older tile and shingle roofs. The original nailing pattern on most original West Covina roofs was never rated for the gusts that funnel through the San Gabriel Valley passes. We see ridge vents and drip edges pulled free at the gable ends and underlayment ballooning at the eaves. A replacement has to be anchored for real wind, not cosmetic nail placement.
- Undersized original framing that only surfaces when the roof is open. Some 1960s rafter systems in West Covina were built to minimum code for their era and have sagged or split under decades of heat cycling. Once the old roof is off, we can see what’s actually carrying the load. If a rafter or two needs reinforcement, we scope it in writing before any new material gets installed.
Pricing for Roof Replacement in West Covina, CA
Here’s what West Covina homeowners can expect to pay, based on the jobs we’ve completed in the 91790, 91791, 91792, and 91793 zip codes:
- Standard architectural asphalt shingle tear-off and replacement: $11,000 – $18,000 for a typical 1,400 – 2,200 sq ft home.
- Concrete tile re-roof with new underlayment and re-set of existing tile: $16,000 – $22,000.
- Full tile replacement with new tile and re-sheathing where needed: $20,000 – $28,000.
- Flat roof tear-off and membrane replacement: $9,500 – $16,000 depending on square footage.
- Sheathing replacement (per 4×8 sheet, tear-off already in progress): $125 – $175 per sheet including labor and disposal.
Every estimate is line-itemed, and the decking allowance is written in before you sign. If the tear-off reveals something unexpected like damaged framing or code-triggered upgrades, you approve the number in writing before we order anything. Call (866) 942-0875 for a free estimate on your West Covina roof replacement.
We Also Serve Cities Near West Covina
Our West Covina crews work across the eastern San Gabriel Valley every week, including Valinda, South San Jose Hills, La Puente, and Irwindale. If you’re a few minutes from our West Covina service area, we’ll come out the same way we would in 91790: inspect the roof, show you what we find, and give you a written price before any work starts.
Serving West Covina, CA — Our Local Coverage Area
We’re based in the West Covina 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 West Covina
Maybe not, but you won’t know without lifting a few tiles and checking the underlayment. On original West Covina concrete-tile roofs from the 1950s – 1970s, the tile itself often survives 50+ years of inland heat, while the underlayment underneath has disintegrated. The first heavy winter storm sends water straight to the decking. A roof inspection that actually opens up a small section tells you the truth about what’s beneath. Call (866) 942-0875 and we’ll do exactly that, without pushing you into a replacement you don’t need.
Yes, and we handle the compliance for you. California’s Title 24 energy code applies to most re-roofing projects in West Covina, which means the new roof surface has to meet cool-roof reflectivity and emittance standards unless it qualifies for an exception. We factor that into the estimate and permit package from the start, so your project closes out without a code-compliance surprise. Call (866) 942-0875 for an estimate that already includes Title 24 compliance.
Santa Ana winds funnel through the San Gabriel Valley passes and hit West Covina hard, especially on hillside streets and gable-end exposures. Original roofs from the 1950s – 1970s were often nailed to a pattern that was never rated for the gusts we see today, which is why ridge vents and drip edges pull free at the gable ends. On a replacement, we anchor the roof system for real wind uplift, not cosmetic nail placement. Call (866) 942-0875 and we’ll explain the anchoring method for your specific roof pitch and exposure.
A roofing square is 100 square feet of roof surface, and it’s the unit contractors use to price material and labor. When you ask for the square count on your West Covina home, you can compare estimates line-by-line instead of getting a single opaque number. We list the square count, the material, the underlayment, and the labor separately on every estimate, so you know exactly what you’re paying for. Call (866) 942-0875 for a line-item quote with your roof’s actual square count.
Before we tear off a single shingle, the contract includes a written allowance for sheathing and framing repair at a fixed per-sheet and per-linear-foot rate. If we find damaged rafters, undersized decking, or skip-sheathing on your West Covina home, we stop, show you photos, and get your written approval on the exact number before any work continues. You never get handed an unexpected bill at the end. Call (866) 942-0875 for a free estimate, and we’ll walk you through exactly what’s covered.
Written by Noel Fierro, Owner at Oakmont Roof Repair, serving West Covina and the eastern San Gabriel Valley.