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 Repair Across Valley Glen
Most roof repairs in Valley Glen fall between $350 and $1,800 depending on what’s failing, and we typically complete the work in one visit. If you’ve spotted a water stain on your ceiling, curling shingles at the roof edge, or a patch of cracked tar-and-gravel that looks like dried mud, you’re seeing what Valley Glen’s inland heat does to mid-century roofing. Marquis Roof Repair serves the 91404 zip code with targeted repairs that address the actual failure, not a vague “roof problem” that leads to a replacement pitch you don’t need. Call (866) 705-2978 for a free estimate, and we’ll tell you honestly whether this is a $400 flashing fix or something bigger.
Valley Glen’s housing stock is overwhelmingly postwar: single-story tract homes and low-rise apartment buildings from the 1940s through the 1960s. Those roofs were built for a different climate, and after sixty or seventy years of San Fernando Valley summers, the original materials are tired in very predictable ways. We know those patterns block by block, from Oxnard Street up to Vanowen, and that familiarity means faster diagnosis and repairs that hold.
Why Marquis Roof Repair Is Valley Glen’s Preferred Roof Repair Company
We work with seven major roofing manufacturers – GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral – which means when a Valley Glen homeowner calls us about a failed section of their 1950s tar-and-gravel roof, we’re not locked into whatever one brand happens to produce. The right material for a shallow-pitch Valley Glen roof is often a modified bitumen cap sheet, not an asphalt shingle, and we specify it because the roof needs it, not because it’s what we stock that week.
Ron Thibodeau leads every project with the same approach: investigate before we recommend. A valley leak on an Encino-adjacent tract home might trace back to failed flashing around a vent boot, not the valley lining itself. We open the roof, check the penetration, and fix what’s actually broken. Homeowners who’ve been burned by contractors pitching full replacements appreciate that diagnostic discipline.
Our Roof Repair team responds to Valley Glen calls from our Burbank base, which puts us about fifteen minutes from most of the 91404 zip. For a leak that’s actively dripping into a bedroom, that proximity matters. We’ve repaired hundreds of roofs in Valley Glen, and the review history from this neighborhood specifically mentions our willingness to do small, honest repairs when other companies refused to quote anything under $10,000.
Styles & brands we work with






Metal Roof Repair in Valley Glen
Metal Roof Repair in Valley Glen is less common than shingle or tar-and-gravel work, but when a mid-century apartment building or a newer accessory structure has a metal roof problem, the failures are almost always at the seams and fasteners. Valley Glen’s summer heat cycles – 100°F daytime, 60°F nights – force metal panels to expand and contract repeatedly, which loosens screws and opens lap joints over time.
Seam and Fastener Repairs
Loose fasteners on a metal roof aren’t cosmetic. Each backed-out screw is a future water entry point, and on Valley Glen’s occasional heavy winter rain days, those pinholes add up to real leaks. We replace failed fasteners with properly sized, gasketed screws and reseal lap seams with a sealant rated for the San Fernando Valley’s temperature swings.
Flashing and Penetration Work on Metal Roofs
Metal roof leaks in Valley Glen often show up around plumbing vents, HVAC curbs, or the transition where a metal roof meets a shingled section. The expansion and contraction of the metal works against the static flashing, and over several summers the sealant gives way. We replace the flashing assembly rather than caulking over the old one, because caulk over failed sealant is how you get repeat leaks in the same spot.
Typical metal roof repair costs in Valley Glen run $425 to $950 for seam resealing and fastener replacement, while full flashing rebuilds around penetrations run $750 to $1,500 depending on how many penetrations are involved and what the underlying decking looks like once we open the area.
Commercial Roof Repair in Valley Glen
Commercial Roof Repair in Valley Glen mostly involves low-rise apartment buildings, medical offices, and small retail strips along Burbank Boulevard and Victory Boulevard. These buildings typically have built-up tar-and-gravel roofs or modified bitumen systems, and the repair economics are different from residential work: a small leak left unattended on a commercial roof can damage tenant spaces, and property owners are usually responsible for interior repairs as well.
Built-Up Roof Repairs for Valley Glen Apartments
Original 1950s and 1960s apartment buildings in Valley Glen often still have their first or second built-up roof, which means alligatoring – a cracked, cracked-mud pattern in the asphalt flood coat – is widespread. We cut out and patch failed sections, then apply reflective coating to reduce the heat load that’s accelerating the failure. Without the reflective layer, a black tar roof in Valley Glen summer sun can hit 160°F surface temperature, and that’s what kills the coating in the first place.
Modified Bitumen and Coating Failures
When a commercial roof in Valley Glen has lost its reflective coating and the underlying membrane is exposed to direct UV, the damage escalates fast. The membrane gets brittle, the seams open, and the next rain finds its way in. We repair the membrane first, then recoat with a high-solids reflective system that extends the roof’s life and cuts the building’s cooling load.
Commercial roof repair pricing in Valley Glen starts around $850 for a small patch and coating touch-up, and runs to $3,500+ for larger areas with membrane replacement and full recoating. Every job gets a written line-item quote so property owners see exactly what they’re paying for. Call (866) 705-2978 to schedule a commercial roof evaluation.
Trusted Brands We Service in Valley Glen
Because we’re authorized to install and repair products from GAF, CertainTeed, Atlas, and several other major manufacturers, a Valley Glen homeowner never has to accept a material that’s “close enough” because it’s the only thing a contractor carries. Seven manufacturer lines, one point of contact. When we repair a valley or a flashing assembly on a mid-century Valley Glen home, we can match the repair material to what’s already on the roof, or upgrade the repaired section to something better suited to the inland heat. We stock common materials and repair components locally, which means faster turnaround on Valley Glen jobs and no week-long waits for a roll of modified bitumen or a bundle of matching shingles.
See the difference
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AfterCommon Roof Repair Problems We See in Valley Glen Homes
- Alligatoring on original tar-and-gravel roofs. After repeated 100°F+ summers, the asphalt flood coat on 1950s built-up roofs cracks into the pattern that gives the failure its name. Once the coating surface is compromised, water finds the cracks and starts working on the decking.
- Failed reflective coating. Most Valley Glen tar-and-gravel roofs were recoated with reflective material years ago to reduce heat load. That coating doesn’t last forever in this climate, and once it blisters and peels, the underlying roof ages fast.
- Santa Ana wind damage to shingles and ridge vents. Dry Santa Ana winds lift poorly fastened shingles and ridge vent components, especially on roofs where the original nailing pattern was never upgraded for modern wind ratings. We see this most often on the north and east exposures of tract homes along Coldwater Canyon and Fulton.
- Flashing failures around penetrations and valleys. Mid-century shallow-pitch roofs in Valley Glen often have inadequate flashing where pipes, vents, and valleys meet the main roof surface. The thermal expansion of those joints, repeated over sixty summers, opens gaps that leak during winter rains.
Pricing for Roof Repair in Valley Glen, CA
Here’s what Valley Glen homeowners should expect to pay for common repairs in the 91404 area. A simple shingle replacement or small roof patch runs $350 to $650. Flashing repair and resealing around vents, chimneys, or valleys runs $450 to $900. Reflective coating touch-up on a tar-and-gravel roof runs $800 to $1,800, depending on the area and whether the coating is being spot-applied or rolled across the entire roof surface. Full vent boot replacement is a $275 to $450 job. The biggest variables are whether the decking underneath has water damage and whether the roof has been repaired repeatedly in the same area. Free estimates are standard with us, and a written quote never changes once the work starts. Call (866) 705-2978 for exact pricing on your Valley Glen roof.
We Also Serve Cities Near Valley Glen
Marquis Roof Repair works across the central San Fernando Valley. In addition to Valley Glen, we serve Valley Glen neighbors in Van Nuys, Sherman Oaks, Encino, and North Hills. The roofing patterns in these cities are broadly similar – mid-century tract homes, the same summer heat, the same Santa Ana winds – but each area has its own quirks in terms of original materials and building styles. Wherever you are, the estimate is free.
Serving Valley Glen, CA — Our Local Coverage Area
We’re based in the Valley Glen 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 Valley Glen
Valley Glen’s inland heat, regularly exceeding 100°F in summer, causes the asphalt in built-up tar-and-gravel roofs to expand and contract far more than the material was designed for. After sixty-plus years of those thermal cycles, the surface cracks into an alligator pattern and the reflective coating that was applied decades ago blisters and peels away. Cooler, foggier neighborhoods like Sherman Oaks or Encino see a fraction of this damage because their roofs don’t experience the same sustained heat. Call (866) 705-2978 for an assessment of your Valley Glen roof’s condition.
Yes. Santa Ana winds in Valley Glen can exceed 50 mph in gusts, and they hit roofs from the north and northeast. Shingles and ridge vent components that were installed without upgraded wind nailing patterns come loose, especially on the leading edges. A roof repair that just replaces the blown-off shingles without correcting the fastening pattern will fail again in the next wind event. We check starter strip and nailing when we repair wind damage.
For most Valley Glen tract homes with shallow-pitch or low-slope roofs, modified bitumen systems outperform asphalt shingles, which are really built for steeper pitches. Modified bitumen handles the thermal expansion of Valley Glen summers better and can be coated with reflective material to reduce heat load. For pitched sections, we specify high-quality asphalt shingles from GAF, CertainTeed, or Atlas, installed with wind-rated fastening patterns.
Ask each contractor three questions: what exactly are you repairing, what material are you using, and what’s your workmanship warranty period. A quote that says “repair roof” without specifics won’t tell you whether they’re addressing the actual failure or just covering it with caulk. In Valley Glen, material choice matters more than in coastal cities because the heat exposure is extreme. We give written line-item quotes that show every repair, every material, and the exact cost.
Yes. We repair metal roofs on residential and light commercial buildings, including seam resealing, fastener replacement, and flashing rebuilds. We also handle commercial roof repair across Valley Glen’s apartment buildings, offices, and retail properties, from patching built-up roofs to full recoating. Call (866) 705-2978 to schedule either – the estimate is free and the work is built to the Marquis standard.
Written by Ron Thibodeau, Owner at Marquis Roof Repair, serving Valley Glen and the San Fernando Valley.