Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roofing Company Across Northridge
Mercer Roofing handles our Roof Repair in Northridge, replacement, and inspections for homeowners across the area, including the acreage properties and unincorporated county pockets most roofing companies treat like an afterthought. If you live off Tampa Avenue, near Cal State Northridge, or in the Knollwood corridor, you’re dealing with a different set of rules than a tract home in the flatlands. County permits, outbuilding setbacks, open-lot drainage. We scope all of it before we quote, and every price lands in writing before a single nail goes in. Call (743) 200-8347 to schedule your free estimate.
Why Mercer Roofing Is Northridge’s Preferred Roofing Company
Northridge homes carry a specific history. The 1994 earthquake didn’t just crack stucco and knock down chimneys. It shifted framing, pulled flashing loose, and forced thousands of homeowners into fast insurance-driven repairs that are now failing all at once. We know what those roofs look like when the shingles come off, because we’ve torn off dozens of them. Our Roofing Company team includes roofers who have worked earthquake-era homes from Reseda Boulevard to the Porter Ranch line, and we don’t bid a Northridge job without walking the roof, checking the decking, and asking when the house was built.
Every technician we send is background-checked, identity-verified, and uniformed under the Threshold Verified standard. Before your appointment, you get the technician’s name and photo. At the door, they present a photo ID badge. That’s how Mercer Roofing works in Roofing Company in Northridge, and it’s non-negotiable. Founded in 2000 as part of the Threshold Group family, we’ve built our reputation on one idea: you should know exactly who is walking onto your property before they ring the bell.
Grant Whitlock leads our crews with a simple rule: written price before any work starts. No exceptions. Homeowners around Dearborn Street, Wilbur Charter, and the Devonshire corridor have called us after other companies gave verbal estimates and changed the number mid-job. That doesn’t happen with us. You get a line-item written quote, and every repair includes a written 365-Day Done Right guarantee. If the fix doesn’t hold, we return free of charge and make it right.
Roofing Contractor in Northridge
A roofing contractor in Northridge handles what a handyman can’t: full tear-offs, structural decking repair, proper underlayment installation, and flashing work that actually sheds water. If your home was built before 1994 and hasn’t been re-roofed since the quake, your decking may be mismatched, your sheathing improperly re-nailed, and your chimney flashing reset at angles that no longer drain correctly. We find this constantly on older ranch homes and 1980s two-story builds alike.
Typical roof repair work in Northridge runs $450 to $1,800 depending on what’s failing. A full roof replacement on a single-story ranch usually lands between $11,000 and $19,000. Tile and metal systems run higher. We’ll give you the exact number after a roof inspection, in writing, before anything gets torn off.
Post-Earthquake Roof Assessment
We pull back flashing around chimney chases and skylight curbs on any pre-1994 Northridge home. The quake moved enough foundations that original flashing angles no longer shed water. Many homeowners caulked the gaps instead of re-flashing. Rot hides underneath. We find it before quoting, not after demo starts.
Acreage and County Jurisdiction Work
Much of the land around Northridge sits in unincorporated LA County. That changes permitting, inspection sequences, and what has to be scoped for detached shops, barns, and ADUs. We handle county submittal and coordinate the inspection before closing walls or sheathing.
Roof Inspection in Northridge
A roof inspection in Northridge should not be a guy with a ladder and a camera phone. Our inspections involve walking every slope, checking flashing, pulling back suspect shingles, and documenting decking condition. After the 1994 quake, thousands of Northridge homes got patch jobs that looked fine from the street and are quietly rotting underneath. A proper inspection catches that before a leak turns into a ceiling collapse.
Roof inspections in Northridge run $250 to $450 for a full written report with photos. If you’re selling a home, buying one, or just haven’t looked up in five years, it’s the cheapest insurance you’ll buy this year. We inspect composition shingle, tile, metal, and flat roof systems.
Pre-Purchase and Real Estate Inspection
If you’re buying a Northridge home built before 1994, get the roof inspected by someone who knows what earthquake-era damage looks like. We document decking, rafter movement, shear-wall re-nailing, and flashing condition. You’ll know what you’re walking into before closing.
Post-Storm and Santa Ana Inspection
After a 60 mph Santa Ana event, ridge caps lift, tile cracks, and flat roof seams split. We check for wind-lift damage, broken tiles, and lifted flashing. Catching it early prevents a small repair from becoming a re-roof.
Trusted Brands We Service in Northridge
We install and repair GAF, CertainTeed, Atlas, and Tamko systems, among other manufacturer-recognized shingle brands. For Northridge homeowners dealing with heat-accelerated granule loss, we often recommend GAF Timberline HDZ architectural shingles for their wind rating and heat performance. For tile work, we source lightweight concrete and clay tile appropriate for earthquake-stressed framing. We stock common flashing, drip edge, and underlayment locally, which means faster turnaround when your roof is open and the forecast turns.
Common Roofing Company Problems We See in Northridge Homes
- Post-1994 earthquake decking rot. Homes repaired under insurance pressure got mismatched decking and improperly re-nailed sheathing. The leaks they created stayed hidden for 25 to 30 years and only appear when a re-roof tears down to the wood.
- Failed chimney and skylight flashing. The quake shifted foundations enough that original flashing angles stopped draining. Caulk sealed the gaps temporarily. The rot underneath never stopped.
- Santa Ana wind damage to ridge caps. Fall gusts over 60 mph through the Valley corridor lift tile and peel ridge caps on Northridge homes every year. Most homeowners don’t notice until the rainy season begins.
- Open-lot drainage failures. On acreage, downspouts and swales often dump water against slab edges or outbuilding walls. A new roof won’t fix a drainage problem. We correct grading and discharge points as part of the scope.
Pricing for Roofing Company in Northridge, CA
Here’s what Northridge homeowners can expect to pay, based on what we’ve quoted and installed across the 91324, 91325, and 91343 zip codes. Roof repairs run $450 to $1,800. A full replacement on a standard single-story ranch runs $11,000 to $19,000. Two-story homes and Spanish-style tile systems run higher, typically $18,000 to $30,000. Flat roofs on mid-century builds land between $9,000 and $16,000. Metal roofing costs $16,000 to $28,000 on average. Every quote is line-item and written before work begins. No change orders unless you approve them in writing first. Call (743) 200-8347 for a free estimate specific to your roof.
We Also Serve Cities Near Northridge
Our crews handle roofing work throughout Northridge and the surrounding San Fernando Valley. If you’re in Reseda, Porter Ranch, Chatsworth, or Granada Hills, you get the same Threshold Verified technicians, the same written pricing, and the same 365-Day Done Right guarantee. Call (743) 200-8347 and we’ll schedule your roof inspection.
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 Roofing Company in Northridge
Yes, and yes. If your address falls in unincorporated LA County land, such as parts of the Knollwood and Devonshire corridors, LA County Building and Safety handles the permit and inspection, not the City of Northridge. County rules for detached ADUs, shops, and barns trigger separate square-footage and setback calculations. That adds permit fees and may add inspection days. We scope this before quoting so the price you see is the price you pay.
Because the 1994 earthquake shifted foundations enough that original flashing angles stopped shedding water correctly. Homeowners caulked the gaps instead of replacing the flashing, which sealed moisture in and let rot spread through the decking. We pull back flashing on every pre-1994 tear-off to find the damage before it gets covered up again. Call (743) 200-8347 to have your flashing inspected before the next rain.
Open lots change grading, drainage, and equipment access. On acreage, downspouts and swales often discharge against slab edges or outbuilding walls, so a re-roof quote frequently includes drainage corrections a tract-home roof would never need. Material haul distances are longer, and equipment access around detached shops and barns requires different staging. We walk the property and scope all of it before the quote is written.
Look for what’s included, not just the bottom line. Does the bid include decking replacement if rot is found? Shear-wall re-nailing if the quake moved framing? County permit fees? Drainage corrections? A cheaper bid that skips those items will cost more when the crew finds what’s underneath. We quote full scope, in writing, with every line item visible. Call (743) 200-8347 for a free estimate that covers what actually needs to happen.
Yes. Northridge sits deep in the San Fernando Valley and regularly records summer temperatures 10 to 15 degrees above coastal LA. Sustained heat accelerates shingle oxidation and granule loss far faster than manufacturer ratings assume. Fall Santa Ana winds over 60 mph lift tile and tear ridge caps. A roof rated for 30 years in a mild climate may last 20 to 25 here. We factor that into material selection and installation details on every Northridge job.
Ready to get your roof inspected? Call Mercer Roofing at (743) 200-8347. We’ll send a background-checked, photo-badged technician whose name you’ll know before they arrive. Written price first. Written guarantee on every repair. That’s how we work in Northridge.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Northridge and the San Fernando Valley since 2000.