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 Northridge
Roof repair in Northridge carries a specific set of challenges, and we see them every week. The 1994 earthquake left a generation of homes with roofs that were patched rather than properly rebuilt, and the San Fernando Valley’s summer heat has been quietly degrading underlayment ever since. Marquis Roof Repair serves every Northridge zip code – 91330, 91324, 91325, and 91327 – with a repair-first approach that starts with understanding exactly what’s happening under the surface. If you’ve noticed a water stain, a lifted tile, or shingles in the yard after a Santa Ana wind, call (866) 705-2978 for a free estimate. We’ll send a roofer who knows Northridge housing stock from the inside out.
Why Marquis Roof Repair Is Northridge’s Preferred Roof Repair Company
Northridge homeowners call us because we investigate before we recommend. That’s not a slogan – it’s how Ron Thibodeau built this company, and it’s the reason our Roof Repair team spends more time on ladders than on sales pitches. We’ve walked thousands of 1950s and 1960s ranch roofs between Reseda Boulevard and Balboa, and we know what a post-quake patch job looks like from the curb. Homeowners around the Northridge Fashion Center and CSUN appreciate that we don’t push replacement when a targeted fix solves the problem.
Our multi-brand access matters here. Northridge has concrete tile, clay tile, wood shake, and asphalt shingle roofs all within a few blocks of each other. We work with GAF, CertainTeed, Owens Corning – and four other manufacturers – so our recommendations come from what your roof actually needs, not from whatever single line a roofer happens to carry. That’s the difference between a roofer who sells one product and a roofing specialist who carries the full toolbox.
Response time to Northridge is typically same-week for non-emergency repairs. For active leaks during winter rain, we prioritize Northridge calls because we know how fast a small intrusion becomes a ceiling collapse in these older homes.
Styles & brands we work with
Shingle Roof Repair in Northridge
Shingle Roof Repair in Northridge usually means replacing asphalt shingles that have cracked, curled, or blown off during Santa Ana wind events. Asphalt shingles are common on the 1970s tract homes and on the 1980s-90s apartment and condo complexes that went up after the earthquake. A single blown shingle is a quick fix, but in Northridge we often find that the shingle was the symptom, not the cause. If underlayment beneath the shingles has baked brittle from years of 100°F-plus summers, the repair scope changes. Typical shingle repair in Northridge runs $350 – $900 for a few shingles and sealing. Replacing a larger damaged section runs $1,200 – $2,800 depending on slope, access, and how much decking needs attention.
Valley and Ridge Shingle Work
Shingles fail first at the roof’s transition points. Valleys, ridges, and hips take the brunt of wind uplift and heat expansion. We replace valley shingles with proper interleaving and re-nail ridge caps with longer fasteners than the originals, which matters on Northridge homes where the original roof predates current wind-uplift standards.
Decking and Underlayment Replacement
When we lift shingles on a Northridge roof, the underlayment is often the real story. If the felt or synthetic layer has granulated or cracked, simply re-shingling over it guarantees another leak in two years. We inspect the decking, replace rotted sections, and lay fresh underlayment before the new shingles go down.
Storm Damage Roof Repair in Northridge
Storm Damage Roof Repair in Northridge is most often tied to Santa Ana wind events between September and February. Those winds lift tile and shingle edges on exposed ridges, break the seal on asphalt shingles, and sometimes send clay tile fragments through yards. Repair costs after a wind event in Northridge typically run $500 – $1,500 for scattered shingle or tile replacement. More extensive ridge and flashing repairs run $1,800 – $4,500. We photograph everything during the estimate, and we document wind and rain patterns so you have what you need if you file an insurance claim.
Wind-Lifted Ridge and Hip Tiles
Santa Ana winds hit the north-facing ridges of Northridge homes hardest. When ridge tiles lift, the mortar or adhesive seal below breaks, and the next rain finds an open path to the decking. We re-set ridge tiles with correct mechanical fastening rather than relying on old mortar, which shortens the repair and extends the roof’s service life.
Rain Intrusion After Wind Damage
Winter rains in Northridge are rarely torrential, but they’re persistent. A roof that lost a few tiles in November often shows its first ceiling stain in January. Our storm-damage repair focuses on water-proofing the penetration points – pipe boots, vents, and valley intersections – where wind damage creates hidden openings.
Trusted Brands We Service in Northridge
Marquis Roof Repair is authorized to install products from seven major roofing manufacturers, including GAF, CertainTeed, and Owens Corning. For Northridge homeowners, that means we’re not steering you toward one brand because it’s the only one we stock. If your Northridge ranch needs a concrete tile match, we source from the same manufacturers that supplied the original build. If your condo complex needs a specific asphalt shingle line, we can pull it. From first inspection to final shingle, you’re working with one point of contact who has access to the right material for your roof.
Common Roof Repair Problems We See in Northridge Homes
- Post-quake underlayment failure. Many tile roofs in Northridge were re-laid over original underlayment after 1994, and that 30-year-old membrane is now failing invisibly. Water stains on ceilings are often the first sign.
- Heat-baked asphalt underlayment. South-facing slopes on Northridge homes regularly exceed 140°F surface temperature in summer. The underlayment under those tiles becomes brittle and cracked years before the tiles themselves show wear.
- Santa Ana wind damage on ridges. Exposed ridges along Reseda Boulevard and the neighborhoods east of Balboa lose tiles and shingles every wind season. The damage may look minor, but each lifted tile opens a water path.
- Dry rot around penetrations. Pipe boots, vents, and skylights on 1950s and 1960s Northridge homes have decades of thermal cycling behind them. Flashing cracks and sealant fails, and the rot spreads into decking before you see it from outside.
See the difference
Before
After
Before
After
Before
AfterPricing for Roof Repair in Northridge, CA
Small, targeted repairs in Northridge – a few lifted shingles, a cracked vent boot, one valley section – typically run $400 – $1,100. Mid-size repairs involving multiple penetrations or a damaged ridge line run $1,500 – $3,500. Larger repairs that require decking replacement or significant underlayment work run $3,500 – $7,500. What moves the number is what we find when we lift the roof: hidden decking rot, failed underlayment, and previous patch work done after the earthquake. That’s why we provide written line-item estimates after we inspect, not before we look. Call (866) 705-2978 to schedule a free estimate, and you’ll know exactly what we found and what it costs.
Key Takeaways:
- Northridge roof repairs typically range from $400 to $7,500 depending on damage scope and what’s hidden underneath.
- Post-1994 earthquake roof patches often left original underlayment in place, and it’s failing now.
- We carry seven manufacturer lines, so material matching for tile, shake, or shingle roofs is never a problem.
- Free estimates include a full diagnostic inspection, not just a visual glance from the curb.
We Also Serve Cities Near Northridge
Our Roof Repair in Northridge service extends throughout the west San Fernando Valley. We regularly work in North Hills, Encino, Van Nuys, and Valley Glen. If you’re a few blocks outside Northridge city limits, don’t worry – we’re already in the neighborhood, and the same crew that knows Northridge roofs knows yours too.
Serving Northridge, CA — Our Local Coverage Area
We’re based in the Northridge 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 Northridge
The short answer is you can’t tell from the ground, and that’s the problem. After 1994, many contractors re-laid tile over the original underlayment rather than stripping the roof and replacing the membrane. The roof looked repaired from the curb, but the waterproofing layer underneath stayed 30 years old. The only way to know is to lift a few tiles and inspect. We do this during every Northridge estimate, especially for homes built before 1994 within a few miles of the epicenter between Reseda Boulevard and Tampa Avenue. Call (866) 705-2978 to schedule an inspection – we’ll show you photos of what’s under your tile.
That pattern is almost always a flashing or valley failure that only opens under sustained moisture. Summer’s dry heat shrinks and cracks old sealant, but the leaks don’t show until winter rain saturates the area for hours at a time. On Northridge homes, the usual suspects are post-earthquake flashing repairs that were done quickly rather than correctly, and valley metal that’s been baked by decades of summer sun. A winter rain is when these failures finally reveal themselves. Don’t wait for the next storm cycle – call us now and we’ll trace the leak to its source.
Ask every roofer the same three questions: What’s under the surface, what exactly will you replace, and what happens if you find more damage once you start? A roofer who quotes without lifting shingles or tiles is guessing. In Northridge specifically, you want a roofer who checks the underlayment because that’s the local failure point. We provide written line-item estimates that separate surface work from underlayment work, so you can compare apples to apples. If another quote is lower because it skips the underlayment, it isn’t actually lower. Get your free estimate from us at (866) 705-2978 and you’ll have a reference point for every other bid.
Yes, and in Northridge it’s one of the most common causes of winter leaks. Santa Ana winds lift tile edges and break the adhesive seal on asphalt shingles. One lifted tile or shingle won’t leak immediately, but water gets under the roofing material and sits against the underlayment. Over weeks, that trapped moisture rots decking and opens a path to your ceiling. After any significant wind event, it’s worth a quick inspection. We check the windward ridges and all penetration points, and we’ll tell you honestly whether anything needs attention. Call (866) 705-2978 to schedule yours.
Most targeted repairs – replacing shingles, re-setting tiles, fixing flashing – don’t require a permit in Los Angeles. If the repair involves structural decking replacement beyond a threshold or re-roofing a significant area, a permit may be required, and that adds to the timeline and cost. We handle permitting when it’s needed, and it’s built into our written estimate up front. You’ll never get hit with a surprise permit fee mid-job. Call (866) 705-2978 for a free estimate that spells out exactly what’s involved, permit or not.
Call Marquis Roof Repair in Northridge
If you’re in Northridge and you’ve got a roof that’s leaking, lifting, or just aging past its warranty, we’ll diagnose it before we prescribe. Seven manufacturer lines, one point of contact, and a repair-first standard that started with Ron Thibodeau and holds across every job we run. Call (866) 705-2978 for your free estimate, and let’s get eyes on your roof before the next wind or rain.
Written by Ron Thibodeau, Owner at Marquis Roof Repair, serving Northridge and the San Fernando Valley.