Metal roofing
Architectural shingles
Tile roofing
GAF
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across Covina
Roof repair in Covina runs $350 – $1,800 for most shingle, tile, and flat-roof fixes, with full ridge re-securing and deep-lot access work at the higher end. We’re Van Nuys Roofing Co, and we work across Covina’s 91722, 91723, and 91724 zip codes weekly, so we know what these roofs do under San Gabriel Valley heat and Santa Ana wind. Rick Dominguez leads the crew, and we quote straight: what’s wrong, what it costs to fix, and whether a repair actually makes sense or if you’re patching a roof that’s past saving. Call (866) 321-6172 and we’ll come look at it.
Why Van Nuys Roofing Co Is Covina’s Preferred Roof Repair Company
We’re not out here pushing one brand or upselling a replacement when a repair does the job. Covina homeowners call us because we inspect first and recommend second. That’s not a slogan; it’s how we scope every job from Glendora Avenue over to Citrus Avenue. Our Roof Repair team has walked more mid-century ranches in Covina than we can count, and we understand what 60-year-old decking, original shake, and sun-baked flashing do when a hot summer gives way to a dry October wind event.
Rick Dominguez set the standard: show up on time, tell the homeowner exactly what we found, and give a price that matches the scope. No change orders after we open the roof, no “while we’re in there” upsells. The material-neutral approach is baked into this. Because we work with GAF, CertainTeed, Covina Owens Corning service, IKO, Atlas, Tamko, and Boral, a Covina customer gets a recommendation driven by their roof and budget, not by whichever supplier runs a rebate this quarter.
Local knowledge matters here specifically. A deep-lot house off Cypress Street is not the same job as a curb-facing bungalow on Badillo. We quote access, staging, and haul distance into the price because we’ve done it enough times to know what it costs. That’s why Covina customers see us come back when the next repair hits.
Styles & brands we work with






Metal Roof Repair in Covina
Metal Roof Repair in Covina tackles standing-seam panels, corrugated metal on detached shops, and the occasional metal tile retrofit on foothill-edge homes toward 91724. We see metal less often on the original 1950s ranches, but when a Covina homeowner has a metal roof on a shop, ADU, or a later addition, the usual failure points are lifted seams from Santa Ana wind, failed fasteners with worn washers, and rust at exposed cut edges. Fixing a seam or replacing fasteners typically runs $400 – $900. A wind-peeled section needing panel replacement can push $1,200 – $2,400 depending on access.
Seam and Fastener Work
Wind-driven rain gets under loose seams on exposed slopes, and once water rides the seam line, the damage is rarely visible from the ground. We re-set panels, replace gasketed fasteners with the right spec for the panel profile, and seal seams with the manufacturer’s approved sealant. On a shop roof behind a detached garage, access often means staging in loose dirt or grass, which we scope before quoting.
Metal Shop and ADU Repairs
Covina’s deep lots put detached shops and ADUs far back from the street, and those structures often carry corrugated metal or low-slope metal panels. We repair rusted end laps, re-flash the transition where the metal roof meets a wood shingle main house, and clear debris that backs up drainage at the gutter line. Typical shop roof repairs run $500 – $1,100.
Commercial Roof Repair in Covina
Commercial Roof Repair in Covina spans older retail strips along Citrus Avenue, small industrial units north of Badillo, and low-slope built-up or modified bitumen roofs on buildings that have baked under 90-plus-degree summer sun for decades. The common threads are failed flashing at parapet walls, punctures around HVAC units, standing water where drainage has settled, and open seams where the original roof membrane has sun-degraded. Minor membrane patching with new flashing generally runs $800 – $1,800. Larger penetration failures or drain-line issues on a wet low-slope roof can hit $2,500 – $5,000 depending on square footage.
Low-Slope and Flat Roof Patches
Covina’s hot, dry climate dries out modified bitumen and single-ply seams until they crack and split. We patch these with the correct material for the existing system, whether that’s a torch-down course, a bonded TPO patch, or a cold-process membrane. The goal is a patch that moves with the roof in heat and wind, not a rigid repair that tears itself apart next summer.
Parapet and Penetration Flashing
Most commercial roof leaks in Covina trace back to parapet walls, roof drains, and A/C curbs that lost their seal years before anyone noticed. We strip failing flashing, replace or re-bed it, and check the surrounding decking for rot. If tenants are already noticing ceiling stains, the deck is usually wet, and we price repair accordingly rather than patching over it.
Trusted Brands We Service in Covina
We’re fluent in seven major roofing material brands, which matters when a Covina roof has existing product on it. GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, Boral. If it goes on a roof, we know the install specs, warranty terms, and how to match repairs to existing material. For Covina homeowners, that means we don’t tear off a section and give you whatever’s in stock; we match what’s up there and keep manufacturer warranty eligibility intact. We also keep common local components on hand so a shingle match or vent boot doesn’t idle the job.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Covina Homes
- Wind-peeled ridge caps and loosened tile on foothill-edge homes toward 91724. Santa Ana events hit these elevations harder than the flat tracts, and the typical failure pattern is caps that lifted once and get re-nailed with the wrong pattern, only to fail again the next wind event.
- Original wood shake too far gone for spot repair in the 91722/91723 tracts. Heat cycling leaves the shake brittle and the underlayment cooked. A spot repair traps moisture under the new material and fails early, which is why we often scope a partial or full tear-off instead.
- Sun-degraded flashing at penetrations and wall intersections on mid-century composition shingle. San Gabriel Valley sun is brutal, and the tar or caulk that sealed the boot, chimney, or valley 20 years ago is cracked now. That’s where the water gets in on otherwise healthy-looking roofs.
- Low-slope flat roofs with debris-backed drainage on deep lots. When leaves, shingle grit, and wind-blown trash pile up behind a clogged drain or scupper, water ponds and finds decking. Covina’s open-lot homes make this worse because there’s more tree litter and wind-blown dirt to move.
Pricing for Roof Repair in Covina, CA
A shingle leak repair in Covina runs $350 – $700. Vent boot replacement: $250 – $450. Flashing repair at a chimney or wall: $450 – $900. Ridge cap re-securing: $400 – $800. Flat roof patches: $500 – $1,100. Full ridge replacement on a wind-damaged roof: $1,500 – $3,000. Deep-lot access, detached shops, and ADUs add staging and haul time that a curb-front house in a dense city never carries. We scope that up front and it shows in the quote. Call (866) 321-6172 and we’ll come measure, inspect, and give you a written line-item estimate free.
We Also Serve Cities Near Covina
Our Roof Repair crews work throughout the eastern San Gabriel Valley, including Irwindale, Azusa, Citrus, and West Covina. If you’re in one of these cities and need an honest assessment on a leaking or wind-damaged roof, Covina isn’t just our service area; it’s where we learned the cost of deep-lot access and heat-aged materials. Call (866) 321-6172.
Serving Covina, CA — Our Local Coverage Area
We’re based in the 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 Repair in Covina
Because the lot depth and access change the labor. Covina’s older 91722 and 91723 tracts sit on deep lots with narrow side yards, detached garages, shops, and the occasional ADU. Hauling material past a fence line and staging ladders on open ground adds time, and time is the bulk of a repair quote. A curb-front house in a dense neighborhood parks a truck at the curb and walks tools to the roof; a Covina deep-lot house often means carrying bundles 60 to 120 feet past a detached shop. We put that access cost in the quote instead of surprising you mid-job. Call (866) 321-6172 for an exact line-item estimate.
Usually the answer is a partial or full tear-off, not a patch. Original wood shake on mid-century Covina homes has been baking in San Gabriel Valley sun for 60-plus years. The shake is brittle, the underlayment is cracked, and any repair we bond to it will trap moisture against failing decking. On a deep-lot ranch house off Cypress Street in 91723, we stripped a wind-peeled ridge and found the original shake had cooked down to a brittle shell over failing underlayment, so we replaced decking in two runs, laid new ice and water shield through the valleys and penetrations, and re-set ridge vent and drip edge before matching the field with new architectural shingles. Getting the squares to the back slope meant staging in the driveway and humping bundles down the side yard past a detached shop. That job started as a “ridge repair” and turned into what it needed to be because we opened it up and looked. Call (866) 321-6172 and we’ll tell you which one your roof needs.
We scope the access first and quote it honestly. A detached shop or ADU on a deep Covina lot means hauling materials past the house, staging on open ground, and working around whatever’s stored along the side yard. We’ve repaired corrugated metal on back-lot shops, re-flashed transitions where a shop roof meets the main house, and replaced vent boots on ADU roofs that never had proper flashing when they were built. The price reflects the extra labor, and we tell you before we start. Call (866) 321-6172 for a free estimate on any detached structure.
Both, but the wind is the one that creates sudden failures. Covina’s heat cycling degrades shingles, flashing, and underlayment slowly over years. Santa Ana winds deliver the event that exposes that aging: they peel back ridge caps, loosen tile on exposed foothill-edge homes toward 91724, and tear shingles off once the adhesive strip has given out. Patching the caps without checking the nailing pattern leaves the same ridge vulnerable next wind event, which is a failure we see repeatedly. Most “sudden” wind damage is a roof that was already failing. Call (866) 321-6172 after a wind event and we’ll inspect the whole ridge, not just the obvious spot.
From the ground, look for missing or lifted shingle edges, ridge caps that look shifted, loose tile, and new granule piles in the gutter. Walk the yard and check for debris backed up against drains or scuppers. Check the ceilings under any roof penetrations for new stains. If anything looks off, don’t climb up; a roof surface in Covina after a heat-and-wind stretch can have loose decking and hidden damage. Call (866) 321-6172 and we’ll send someone to walk the roof and give you a straight answer.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving Covina and the eastern San Gabriel Valley.