Architectural shingles
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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 Van Nuys
Roof repair in Van Nuys is a different job than it is fifteen miles away in Santa Monica. The flat roofs, the summer heat, the oak trees dropping leaves onto low-slope membranes near 91401 and 91405, the mid-century tract houses built when tar-and-gravel was the default, they all shape what actually fails and what it costs to fix. We work Van Nuys regularly, from the apartment buildings off Van Nuys Boulevard to the 1940s houses west of Sepulveda. If you’ve got a leak, a soft spot, or a section of membrane that looks cracked and brittle after a 105°F week, call Ridge Cap Roof Repair at (866) 361-0798. We inspect first, give you a written price, and never push a replacement when a repair is the honest call.
Why Ridge Cap Roof Repair Is Van Nuys’s Preferred Roof Repair Company
Van Nuys homeowners call us because we don’t walk a roof looking for a reason to sell a new one. The first thing we do is inspect, from the ridge cap down. That’s not a slogan, it’s the work sequence. The ridge cap is the highest, most exposed detail on any roof, and if it’s been installed or sealed poorly, everything below it suffers. So we start there, then move through the field, the penetrations, the flashings, and the drains. In Van Nuys, where so many roofs are low-slope modified bitumen or aging built-up, the drain and scupper inspection matters as much as anything else. A clogged drain on a flat roof near an oak tree can rot a seam in one winter.
We also carry material depth that matters here. Our team works across seven manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That means when we recommend a repair material for a Van Nuys roof, it’s matched to the existing system and the Valley’s UV load, not to whatever we have left in the yard. Noel Cardenas runs our crews, and he’s the one who sets that standard: inspect before recommending, repair when it makes sense, replace when it doesn’t.
Styles & brands we work with






Commercial Roof Repair in Van Nuys
Commercial roof repair in Van Nuys means working on the small apartment buildings and flat-roofed commercial strips that run along Van Nuys Boulevard, Victory Boulevard, and Sherman Way. Most of these buildings were built between the 1940s and 1960s, and many still carry their original tar-and-gravel or built-up roofs. Those systems are now well past their service life. When they fail, it’s rarely dramatic. It’s a seam that opens after a hard rain, a pitch pocket that cracks, a drain collar that separates from the membrane. The repair itself is straightforward for a crew that knows flat roofs; finding the actual entry point is where experience pays.
A commercial flat roof repair in Van Nuys typically runs $850 – $1,900 for localized seam work, flashing repair, or a drain reset on a small apartment building. Larger repairs requiring heat-welded modified bitumen patches across multiple areas can reach $3,500 – $6,000. These are repair prices, not replacement quotes. If the roof is too far gone, we’ll tell you and show you why with photos.
Heat-Welded Seam and Drain Repair
On low-slope modified bitumen roofs, the laps between membrane sheets are the weak points. Van Nuys heat accelerates embrittlement, and when a lap fails, water follows the slope to the next drain or scupper. We clean the area, heat-weld a new patch over the failed lap, and reset any drain collars or flashing that contributed to the problem.
Tenant Leak Response for Van Nuys Apartment Buildings
When a tenant reports a ceiling stain in a 12-unit building off Victory, the owner needs a diagnosis fast. We locate the entry point, document it, and price the fix in writing before any work starts. That written scope protects the owner and keeps the repair honest.
Roof Leak Repair in Van Nuys
Roof leak repair in Van Nuys usually starts with a ceiling stain that shows up days after the first real winter rain. Here’s the frustrating part: the leak you see inside is rarely directly under the hole in the roof. Water travels along the underside of the decking, follows a rafter, and drips at a seam or a light fixture. On flat roofs, it pools in the low spots and finds its way through a seam that might be fifteen feet from the stain. That’s why our leak repair process in Van Nuys starts with a full roof inspection, not just a patch over the damp spot.
Shingle replacement for a few damaged or missing shingles in Van Nuys generally runs $350 – $700. A leak repair that involves flashing replacement, vent boot replacement, or a valley repair typically lands between $450 – $1,200. Flat roof leak repairs on modified bitumen or built-up systems run $750 – $2,500 depending on how much membrane has to come up and what we find beneath it. If water has been sitting, you may also be looking at decking replacement, which changes the number. We’ll show you the rotted wood before we touch it, and you approve the price before we proceed.
Flashing and Penetration Leaks
Most pitched-roof leaks in Van Nuys come from flashings: the metal at chimneys, walls, vents, and valleys. The shingles may be fine. The flashing has pulled loose or corroded. We remove the old flashing, install new material matched to the existing roof, and seal the penetration correctly.
Flat Roof Ponding and Seam Failure
On the flat and low-slope roofs that dominate Van Nuys, ponding water is the slow killer. A roof that holds water for 48 hours after rain is degrading at the laps and seams even when it looks dry from the ground. We find those soft spots early, cut back to sound decking, and weld in new membrane so the repair holds through the next winter.
Trusted Brands We Service in Van Nuys
The right material for your roof depends on what’s already up there and what the San Fernando Valley climate demands. We service and install products from Owens Corning, IKO, Atlas, and others across our seven-brand roster. That range matters in Van Nuys because the UV and heat cycling here will find the weak point in a cheap patch within two summers. We keep common repair materials on hand so a shingle or membrane patch doesn’t wait on a supplier truck idling on the 405. Seven manufacturers. One crew.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Van Nuys Homes
- Oak litter clogging flat-roof drains and scuppers. In the older neighborhoods around 91401 and 91405, mature Valley oaks shade roofs and drop leaves that wash into drains during winter storms. The standing water that follows rots modified bitumen seams at the laps, a failure mode that barely exists on sunnier, treeless stretches of the Valley where the same roof would just dry out and UV-crack.
- Original tar-and-gravel roofs past service life. Most Van Nuys homes and small apartment buildings were built between the 1940s and 1960s, and many still carry their original built-up roofs. Seam and flashing failures on these systems show up only after the first hard winter rain saturates the gravel and finds a path through.
- UV-embrittled sealant at penetrations and drip edges. Summer temperatures over 100°F bake sealant around vent pipes, soil stacks, and edge metal. The sealant cracks before the roof material wears out, and the leak follows. We replace the sealant and reset the penetration flashing, which is a $450 – $900 repair on most Van Nuys homes.
- Delaminated decking under old ponding areas. Where drains have backed up historically, the decking beneath the membrane may have rotted even if the surface looks intact. We find this by walking the roof and feeling for deflection, then we open a test cut before quoting the full repair so the price you approve reflects what’s actually under the membrane.
Pricing for Roof Repair in Van Nuys, CA
Roof repair pricing in Van Nuys starts around $350 for a small shingle replacement or vent boot swap, and runs up to $6,000+ for extensive flat-roof repairs on large apartment buildings with rotted decking. Here’s what to expect for common work:
- Shingle replacement (a few damaged shingles): $350 – $700
- Flashing repair at a chimney, wall, or valley: $450 – $1,500
- Vent boot or pipe collar replacement: $250 – $500
- Flat roof seam or drain repair (modified bitumen or built-up): $750 – $2,500
- Commercial flat roof repair on a small Van Nuys apartment building: $850 – $6,000, depending on the scope and what’s found beneath the membrane
What moves the number is what’s under the membrane. On a 1953 flat-roof house off Van Nuys Boulevard near the 91401 line, our crew opened a soft spot and found the original tar-and-gravel decking had delaminated under a shallow ponding area where an oak-clogged drain had backed up. We tore off to sound decking, installed new plywood underlayment and heat-welded modified bitumen with fresh flashing at the penetrations, then reset the drain and rebuilt the fascia before the next round of winter rain. The homeowner got every surprise, rotted sheathing, a failed seam, a corroded scupper, priced in writing and approved before we touched it. That’s how we handle every Roof Repair job in Van Nuys. Call (866) 361-0798 for a free estimate and we’ll inspect first, then price the work honestly.
We Also Serve Cities Near Van Nuys
Ridge Cap Roof Repair serves Roof Repair in Van Nuys and the surrounding San Fernando Valley communities, including Valley Glen, Sherman Oaks, Encino, and North Hills. If you’re a few miles out and need an honest roof assessment, call us. We’ll come look.
Serving Van Nuys, CA — Our Local Coverage Area
We’re based in the Van Nuys 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 Van Nuys
The leaks you see after a winter storm are almost certainly drain or seam failures that only appear when water has time to sit on the roof. In summer, the rain evaporates within hours and the heat dries the surface before water can push through a compromised seam or clogged scupper. In winter, a clogged oak leaf drain near 91405 holds water for days, and that standing water finds its way through the modified bitumen laps. The fix is usually a drain reset plus a seam patch, typically $750 – $1,500 depending on the margin. Call (866) 361-0798 and we’ll find the actual entry point, not just the ceiling stain.
We stop, photograph the rot, show it to you, and get your written approval on the additional price before we proceed. Our contract includes written allowances for predictable overages like rotted sheathing and failed seams, so the number doesn’t move without your signature. The repair involves cutting back to sound decking, installing new plywood underlayment, and welding in new membrane. In older Van Nuys homes with decades of ponding history, we expect to find some rot and plan for it up front.
Yes. A small apartment building flat roof repair in Van Nuys typically runs $850 – $1,900 for localized seam work, flashing repair, or drain resets. Larger repairs involving multiple membrane areas or heat-welded patches can reach $3,500 – $6,000. We work directly with the owner or property manager, document everything with photos, and never start work without a written scope and price. Call (866) 361-0798 for a building assessment.
In most cases, yes. We work across seven manufacturers, including Owens Corning, IKO, and Atlas, so we can usually source a shingle that’s close enough to the existing roofline to blend cleanly. If the roof is older, there may be some visible difference between old and new exposure, but we’ll set honest expectations before the repair. We never push a full replacement to solve a shingle-match problem.
A square is 100 square feet of roof area, and replacement quotes break down by squares. A full roof replacement quotes the entire roof square count, including tear-off, decking repair if needed, underlayment, material, flashing, and waste. A repair quote covers only the damaged section plus a reasonable margin around it. We price both ways, show you the math, and let the roof condition and your budget drive the recommendation. Repair when it makes sense. Replace when it doesn’t. Call (866) 361-0798 for a free estimate and we’ll walk the roof with you before any numbers get written.
Written by Noel Cardenas, Owner at Ridge Cap Roof Repair, serving Van Nuys and the San Fernando Valley.