Metal roofing
Architectural shingles
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 Replacement Across Northridge
Roof replacement in Northridge typically runs $9,500 – $18,000 for a standard single-family home, with most tear-offs completed in 2 – 4 days once permits clear. We work throughout 91324, 91325, 91327, and 91328, and our crews know exactly what hides under the shingles of a 1960s Northridge tract home. Call (866) 942-4187 and we’ll schedule a free inspection, walk the roof with you, and put a written line-item quote in your hand before we leave the driveway.
If the roof over your head dates back before the 1994 earthquake, there’s a good chance it’s carrying damage you can’t see from the street. That’s the reality of Northridge housing stock, and it’s why we never bid a replacement here without opening a corner of the roof first. We also carry the full product line from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, so the material conversation starts with your budget and your home, not our margin.
Why Orange County Roofing Co Is Northridge’s Preferred Roof Replacement Company
Northridge homeowners don’t have time for a contractor who treats the San Fernando Valley as just another service zip code. Roofing here comes with a specific history: the 1994 quake reshaped thousands of roofs in a few chaotic months, and a lot of what got installed then was never brought up to today’s code. We see that history every time we strip a roof near Cal State Northridge or along Reseda Boulevard. That’s not trivia; it’s the difference between a quote that holds and one that blows apart on day three.
We’ve replaced roofs across Northridge for years, from small flat sections over a garage on Lassen Street to full tear-offs on steep-pitched homes in the neighborhoods off Devonshire. Because we carry seven major brands rather than one preferred line, our recommendation reflects what actually fits your house: a heavy concrete tile that holds up to 100°F summers, an architectural shingle rated for wind and seismic movement, or a Boral profile that matches what the quake retrofit left behind. The right product wins, not the one with the biggest rebate to us.
Our crews are out here weekly, and our material runs to Northridge happen same-week, not next month. That means once your permit is posted, the job moves. No waiting for a supplier in Riverside to route a truck through the Valley. Call (866) 942-4187 and ask what we’re seeing on Northridge roofs right now. You’ll get an honest answer, not a sales line.
Styles & brands we work with
Flat Roof Replacement in Northridge
Flat Roof Replacement in Northridge usually runs $6,000 – $12,000 depending on square footage, the number of penetrations, and whether the substrate beneath is still sound. Most flat roof sections here sit over additions, patios, garages, or the classic 1960s ranch wing that juts out toward the backyard. What makes Northridge flat roofs different is the heat. A modified bitumen or TPO roof that bakes under 100°F sun all summer expands, contracts, and eventually tears at the seams if the substrate shifts even slightly, which is common in post-quake framing.
We strip the old membrane down to decking, inspect every seam and penetration, and replace what the quake loosened before the new roof goes down. The permit inspection happens at the decking stage, before we cover anything, so there’s no buried surprise under fresh material.
TPO and Modified Bitumen
Most Northridge flat roofs we replace were originally built with torch-down or old ballasted systems. We install single-ply TPO where UV and heat resistance matter most, and modified bitumen where the roof sees foot traffic or has complex flashing around mechanical equipment. Both carry manufacturer-backed warranties, not just our workmanship promise.
Seismic Considerations on Flat Sections
A flat roof over an addition that shifted during the 1994 quake often has a slope problem now. Water pools for days after winter rain, which is why we re-level the deck with tapered insulation when we replace the membrane. If the original addition was built on a slab that settled, the roof tells you first. We build the correction into the quote before we start.
Roof Installation in Northridge
Roof Installation in Northridge for new construction or a full re-roof starts around $11,000 and can exceed $22,000 for larger homes with steep pitches, concrete tile, or extensive decking replacement. “Installation” here means more than dropping shingles on a frame. On a Northridge home, it frequently means opening the roof, finding what 60 years of heat and a seismic event did to the wood underneath, and fixing that properly before the first new shingle goes on.
We pull permits on every installation. Los Angeles County requires them, and more importantly, the inspector’s sign-off protects you when you sell. A roof done without a permit in Northridge is a liability at resale, especially in a market where buyers know to ask about post-quake construction history.
Decking and Seismic Re-Nailing
The decking is the roof’s skeleton. On a 1960s tract home, that often means original 1×6 boards nailed to rafters with nothing close to modern spacing. Code now requires re-nailing every 6 inches on center at the rafter connections, which is rarely mentioned in a drive-by estimate. We write it into every Northridge quote because we know the inspector will require it once the roof is opened.
Ice and Water Shield in Valley Climates
Northridge doesn’t see snow, but winter rains can hammer the north-facing slopes and valley intersections of a ranch roof for three straight months. We install ice and water shield in valleys, around chimneys, and at the eaves on every replacement. It’s the difference between a roof that survives 20 wet seasons and one that rots the decking from the edges inward.
Trusted Brands We Service in Northridge
We’re authorized to install GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral roofs. That’s seven separate manufacturer relationships, which is why we can be honest about what works in Northridge’s heat: Atlas and Tamko architectural shingles hold up well under UV, Boral concrete tile matches the original 1960s roof profiles common near CSUN, and GAF designer shingles give homeowners a higher-end aesthetic without the weight of tile. Because we stock locally, material warranties and replacement parts don’t get stuck waiting on a distributor. For the full overview of how we approach each project, see our Roof Replacement process.
Whether you’re re-roofing after a failed inspection, selling, or planning to stay for 20 more years, the brand choice should be a conversation, not an upsell. We walk every Northridge customer through the trade-offs: weight, wind rating, UV resistance, cost, warranty tier. Then you decide.
Common Roof Replacement Problems We See in Northridge Homes
- Hidden quake damage in the decking. The 1994 earthquake cracked rafter ties and loosened underlayment all over Northridge. When we strip an older home near Nordhoff Street or Reseda Boulevard, we’re not surprised to find original 1×6 decking that was never re-nailed to modern seismic spec.
- Mismatched tiles from post-1994 patch jobs. After the quake, homeowners grabbed whatever tile was available to get through the next winter. Those mismatched concrete tiles expand and contract at different rates in the Valley heat, and the seams open up within a decade.
- Failed underlayment from the quake repair era. Contractors working fast in 1994 often laid new felt over torn old felt without proper lapping. Winter rain wicks into the decking for years before the top layer shows any visible damage.
- Soft fascia and soffit wood behind newer drip edge. A roof replacement that doesn’t address the original 1950s – 70s fascia will rot quietly behind the new metal. We check it during inspection and price it before we start, not after the inspector flags it.
See the difference
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After
Before
After
Before
AfterPricing for Roof Replacement in Northridge, CA
Here’s what you can realistically expect in Northridge right now. A standard architectural shingle tear-off on a 1,500 square foot ranch runs $9,500 – $13,500. Concrete tile replacement on a two-story home off Zelzah or Tampa starts around $16,000 and can hit $24,000 with decking work. Flat roof sections over a garage or addition add $4,000 – $8,000 depending on size and underlayment condition. If we uncover quake-damaged decking at the tear-off, that’s a line item we priced as a allowance before we ever lifted a shingle.
What drives cost in Northridge more than any other factor is the age of the home. A 1958 house off Lassen that’s never been re-roofed since the quake is going to need more wood repair than a 2005 house near the Northridge Fashion Center. We handle this with a written allowance in the contract, priced per square foot of decking, and we never start that work without your signed approval.
Call (866) 942-4187 for a free estimate. We’ll walk the roof, write a line-item quote, and tell you honestly what the permit inspector is going to require before we touch the first nail.
We Also Serve Cities Near Northridge
Our crews work throughout the central San Fernando Valley: North Hills, Encino, Van Nuys, and Valley Glen. If you’re considering Roof Replacement in Northridge or a neighboring community, the same inspection-first, allowance-priced process applies. We know these neighborhoods share the same post-quake housing stock and the same summer heat, and we quote accordingly.
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 Replacement in Northridge
Because Northridge’s 1950s – 1970s homes were frequently patched after the 1994 earthquake with whatever materials were on hand, and the damage those patches covered didn’t go away. Mismatched tiles, underlayment laid over torn felt, and decking that was never re-nailed to seismic code all hide beneath the surface. We handle this with a written allowance for decking and structural repair, priced per square foot before we begin. You approve any added scope before we do the work. Call (866) 942-4187 to discuss what we typically find in your neighborhood.
Yes. The City of Los Angeles requires a building permit for any roof replacement in Northridge that involves tear-off and new underlayment, regardless of material. The permit triggers an inspection at the decking stage, which is exactly when hidden quake damage gets documented and corrected. We pull permits on every job, and the inspection record stays with the property, which matters when you sell. If a contractor tells you a permit isn’t needed, get a second opinion.
Line up the line items side by side, not the bottom numbers. Look for a decking allowance, a fascia repair line, ice and water shield in valleys, seismic re-nailing to current code, and a stated permit fee. A lower bid that omits these items in Northridge will change once the roof opens and the inspector arrives. We write every one of those items into our quote before you sign, so the comparison is honest from day one. Our estimates are free at (866) 942-4187.
Atlas and Tamko architectural shingles hold up extremely well under intense San Fernando Valley UV, and they’re warrantied against wind uplift that matters in seismic country. Boral concrete tile matches the original 1960s roof profiles common around Northridge, though it’s heavier and requires structural verification. GAF designer shingles offer a step up in appearance without tile weight. We carry all seven brands we service, so the choice is about your house and budget, not what we prefer to sell.
Yes. Many Northridge homes have flat sections over additions, patios, or garages that need replacement at the same time as the main pitched roof. We handle both under one permit, one inspection schedule, and one written quote. The flat section gets the same decking inspection and allowance treatment as the main roof, and we re-level any slope that’s settled since the quake. Call (866) 942-4187 and we’ll include all roof sections in the estimate.
Contact Orange County Roofing Co for Your Northridge Roof Replacement
If you own a home in Northridge and your roof is past the point of patching, don’t guess at what’s underneath. We inspect first. Then we write a quote that names every line item, includes a decking allowance for the hidden quake damage this neighborhood is known for, and pulls a permit so the work is documented, inspected, and protected. Led by Kurt Hensley, our team has been opening up Valley roofs long enough to tell you, honestly, what yours needs. Call (866) 942-4187 to schedule your free estimate. No sales pitch. Just someone who knows Northridge roofs standing on yours.
Written by Kurt Hensley, Owner at Orange County Roofing Co, serving Northridge and the San Fernando Valley.