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 Replacement Across Northridge
Roof replacement in Northridge runs between $9,800 and $22,000 for a typical single-story ranch, with architectural shingles on the higher end and basic three-tab on the lower. That’s the honest range before any decking surprises show up after tear-off. Our team knows Northridge roofs specifically: the post-1994 layered shingles hiding soft wood underneath, the south-facing slopes that bake years ahead of the north side, and the permit path through LADBS. Call (833) 467-4901 and we’ll send someone who actually knows what to look for before the tear-off starts.
Northridge is not a coastal roof market. The heat here chews through underlayment, dries out flashing, and splits shingles on the sun-exposed planes. We’ve torn off plenty of roofs near the CSUN campus in 91325 and through 91324 and 91330 where the south slope looked fifteen years older than the north slope on the same house. That’s the kind of local knowledge that changes what we recommend and what we write into the estimate.
Why Huntington Beach Roofers Is Northridge’s Preferred Roof Replacement Company
We carry seven shingle brands: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That’s not a slogan. It means when a Northridge homeowner needs a wind-rated architectural shingle for a ranch near Reseda Boulevard, we’re not pushing the one brand sitting in our warehouse. We match the product to the roof and the budget. Some homeowners need a builder-grade three-tab for a rental near Nordhoff Street; others want a GAF or CertainTeed architectural system with a manufacturer warranty that transfers if they sell.
Our reviews from Northridge customers mention two things repeatedly: the inspection happens before any recommendation, and the quote doesn’t balloon after tear-off. That’s because Neil Stratton built the process that way. We walk the roof, photograph the problem areas, and tell you whether repair or replacement actually makes sense. Sometimes the answer is repair. We say so.
Northridge response time matters when a winter storm rips flashing off a valley and water’s coming through the ceiling. We route crews to the Valley quickly, and we’re on the phone with the homeowner before the truck rolls. You won’t get a call center. You’ll get the person who’s about to stand on your roof.
Styles & brands we work with






Roof Installation in Northridge
Roof Installation in Northridge means tear-off, decking inspection, underlayment, drip edge, shingles, and ventilation on homes mostly built between 1950 and 1980. The first sentence every Northridge homeowner should read: if your roof has two layers of shingle from the post-1994 glut of reroofs, we have to tear both layers off before anything new goes down. Code won’t allow a third. The tear-off is where we find what the previous owner’s contractor hid.
A full Roof Installation on a Northridge ranch typically runs $11,000 to $19,000 with architectural shingles, and that range includes new drip edge, synthetic underlayment, and standard decking repair. If the decking is rotted at the valleys or around penetrations, the price moves. We write decking allowances into every contract so you see the per-sheet cost before we start.
Post-1994 Tear-Off Reality
After the 1994 Northridge earthquake, thousands of homes got quick reroofs from out-of-town crews. Many of those roofs are still up there, layered over the original shingle. When we strip them, we commonly find the original 1960s decking softened at the valleys and the underlayment cracked from decades of Valley UV. That’s not a surprise to us. It’s a line item.
Ventilation and Valley Work
A Northridge roof that’s been patched twice often has no working ridge vent and valleys that hold water. We rebuild those valleys with ice and water shield, set new drip edge, and cut a proper ridge vent. It’s not optional here. The summer heat pushes the attic past 140 degrees, and without airflow, new shingles cook from underneath. On a low-slope ranch near the CSUN campus in 91325, our crew tore off two layers of post-1994 replacement shingle and found the original decking soft at the valleys and the underlayment dried and cracked from decades of Valley UV. We replaced the bad decking, laid ice and water shield through the valleys and around every penetration, set new drip edge, and installed architectural shingles in GAF with a proper ridge vent to close the system.
Roof Replacement Contractor in Northridge
A Roof Replacement Contractor in Northridge has to understand something that a generic LA roofer doesn’t: south- and west-facing roof planes here bake so hard that shingles on those slopes fail years before the north-facing planes on the same house. That split-wear pattern drives half the repair-or-replace decisions we make in 91324 and 91330. A homeowner sees the north slope looking fine and thinks the roof has five years left. The south slope tells a different story.
Full Roof Replacement in Northridge, including tear-off, decking repair, architectural shingles, and new flashing, runs $12,000 to $22,000 on most ranches. Flat and low-slope sections near CSUN apartment stock run higher because of membrane material costs. We carry Tamko and Boral for entry-level and mid-range budgets, and GAF plus CertainTeed for the premium systems.
Split-Wear Inspection First
We inspect the south and west planes separately. The report you get breaks the roof down by exposure. If the south slope is failing and the north is solid, we say so, and we give you numbers for a full replacement versus a targeted repair. Most Northridge homeowners end up replacing the whole roof once they see the numbers side by side, but the decision is yours after you see the actual condition. We don’t upsell. We document.
Decking Allowances in Writing
Every Northridge roof replacement contract we write includes a decking allowance: a per-sheet price, a typical sheet count, and a signed change-order process for anything beyond that. When we open the roof and find three sheets of rotted plywood near the chimney, you see the cost before we cut. That’s the only honest way to bid a roof in this city, where post-1994 layered roofs hide damage until tear-off. A contractor who gives you a flat number and says it won’t move either hasn’t done many Northridge roofs or plans to hit you with a change order and hope you’re too tired to fight it.
Trusted Brands We Service in Northridge
Seven brands. One contractor. We’re authorized to install GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral products, so the shingle recommendation follows the roof’s needs and your budget, not our inventory. Most Northridge homes do well with a mid-tier architectural shingle from Tamko or Atlas; for wind-rated premium systems, we specify GAF Timberline or CertainTeed Landmark. We keep common Valley color blends available and can source brand-specific components for insurance claim work fast. If one brand is backordered, we pivot to an equivalent without stalling the job.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Northridge Homes
- Two layers of post-1994 shingle over original decking. The earthquake reroofs were fast and cheap, and many homeowners roofed over the old shingle instead of tearing off. Code allows two layers max, so the next replacement requires full tear-off, and that’s when the hidden rot surfaces.
- Sun-baked south and west slopes failing early. The same ranch on a quiet 1950s street will show curled and granule-shedding shingles on the south plane while the north plane still looks nearly new. Repairs on the north slope don’t fix the actual problem, and a replacement decision made without checking both exposures is a guess.
- Dried-out flashing and cracked sealant at valleys and penetrations. Northridge gets long dry heat and then a few hard winter rain events. The flashing doesn’t leak gradually here; it cracks and holds until a storm pushes water through all at once. By the time the ceiling stains, the underlayment’s been wet for weeks.
- Heat-aged fascia and soffit that crack during installation. When we set new drip edge on a Northridge roof that’s been baking since the Carter administration, the old wood fascia sometimes splits. That means carpentry the original bid didn’t see. We flag it during the initial inspection when it’s visible, and write a small allowance for it so the change order doesn’t feel like a surprise.
Pricing for Roof Replacement in Northridge, CA
Expect to pay between $9,800 and $22,000 for a full roof replacement in Northridge. A basic three-tab tear-off and replacement on a small ranch runs $9,800 to $12,500. Architectural shingles on a mid-size ranch land at $14,000 to $19,000. Premium GAF or CertainTeed systems with upgraded underlayment, ridge vent, and full flashing run $18,000 to $22,000. Decking replacement runs $75 to $110 per sheet, and we write that as a contract allowance so the change order is priced in writing before we touch it.
What moves the number: roof pitch, number of stories, skylights, chimney count, valley count, and how much decking needs to come out. A Northridge roof with post-1994 layers and rotted valleys will run higher than a clean single-layer tear-off. Call (833) 467-4901 and we’ll give you a written line-item quote. Free estimate, no pressure.
We Also Serve Cities Near Northridge
Our crews work throughout the San Fernando Valley, including Northridge, North Hills, Encino, Van Nuys, and Valley Glen. If you’re a few blocks outside the Northridge ZIPs in a neighboring Valley city, the same team handles your roof. We also bring the full Roof Replacement process to any of these areas: inspection first, written allowances, and one contractor from first shingle to final 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 Roof Replacement in Northridge
No. California code allows a maximum of two layers of shingle, so a third layer means a full tear-off before anything new is installed. That’s actually good news for the roof’s long-term health: tear-off exposes the hidden decking damage that twenty years of layered shingles have been hiding, and we can fix it properly instead of covering it again. Call (833) 467-4901 for a tear-off inspection and a firm quote with decking allowances in writing.
The San Fernando Valley sun hits south- and west-facing roof planes with relentless direct exposure from late morning through sunset, and Northridge is one of the hottest parts of the Valley. The shingles on those planes reach surface temperatures far above the ambient air, which accelerates granule loss and dries out the asphalt binder years before the north-facing planes show the same wear. A reputable Northridge roofer checks both exposures separately and makes the repair-versus-replace call based on the whole roof, not the slope that happens to face the street. Call (833) 467-4901 and we’ll inspect both planes.
Roof replacement itself rarely opens walls, but the permit process through LADBS can flag adjacent conditions: rotted fascia that needs carpentry, inadequate attic ventilation, or chimney flashing that’s no longer code-compliant. We pull the permit for every Northridge replacement, and if the inspector requires an upgrade, we price it in writing before the work proceeds. That transparency is standard for us, not an add-on. Call (833) 467-4901 to walk through what your specific roof will need.
Start with the decking allowance. If one bid includes a per-sheet price for rotted decking and the other doesn’t mention decking at all, the second bid is either naive about Northridge’s post-1994 layered-roof history or planning to surprise you after tear-off. Then compare the shingle brand and line: a GAF Timberline system isn’t the same product as a builder-grade three-tab, and the warranty difference matters. Look at underlayment, drip edge, valley treatment, and ridge vent. If a line item is missing from one bid, ask why. Our quotes are line-itemed so you can compare them directly.
Northridge sits in a wind zone that doesn’t demand the 130-mph-rated shingles you’d spec in a hurricane market, but after the 1994 earthquake and the wind events that followed, we recommend architectural shingles rated for at least 110 mph. Most GAF Timberline and CertainTeed Landmark lines meet or exceed that. The bigger issue here is heat, not wind: you want an architectural shingle with a high UV resistance and a manufacturer warranty that covers the Valley’s intense sun exposure. Call (833) 467-4901 and we’ll match the shingle to your roof and the Northridge climate.
Written by Neil Stratton, Owner at Huntington Beach Roofers.