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 usually runs $9,000 to $18,000 for a typical single-story ranch, and $14,000 to $26,000 for a two-story home, depending on what’s actually on the roof right now. We’ve been up on hundreds of Northridge roofs between 1955 and 1985, and the pattern is consistent: original concrete tile that looks great from the street, with underlayment underneath that’s been baked out by 40 Valley summers. You’re not just paying for new roofing material. You’re paying for someone who knows what’s underneath it. Call (866) 217-3967 and we’ll put eyes on it before you spend a dime.
Why Moreno Valley Roof Repair Is Northridge’s Preferred Roof Replacement Company
Northridge homeowners call us for one reason more than any other: we don’t sell tile when the underlayment is the problem. That’s the honest read most people never get. The crews from coastal LA that come over the 405 see a 60-year-old roof and quote a full tear-off, new tile, and a bill that’s 40% higher than what the house actually needs. We see a 1960s tract home where the tile has another 40 years in it and the felt underneath has been dead since 2010. Brand-agnostic means we tell you that. Ruben Ibarra has built our whole approach around it: work with seven manufacturers, from GAF and CertainTeed down through IKO and Atlas, then recommend the material that matches your actual roof, not our best margin.
And when we say we know Northridge, we mean the specific parts. The 91324 and 91325 core, where every third house has the same low-pitch hip roof and the same original underlayment. The 91330 pockets around CSUN where 80s stucco two-stories and flat sections on additions pop up. The 91327 and 91328 edges where lots get bigger and roof access gets more complicated. Different houses, different scopes, same straight answer.
Styles & brands we work with
New Roof Installation in Northridge
New Roof Installation in Northridge happens in two situations: you’re building new construction, or the existing roof is beyond repair and you’re starting clean. New construction north of Nordhoff and east of Reseda tends to be either large-lot custom homes or detached ADUs, and both have their own scoping issues we’ll walk through with you. A complete tear-off and new roof on an existing home typically lands between $11,000 and $20,000 for standard architectural shingles, and $18,000 to $30,000 for new concrete or clay tile, depending on square footage and how much decking has to come out.
We don’t quote new construction the same way we quote a reroof. On new work, there’s no hidden rot to discover, but there’s a lot more coordination: the roof has to tie into the planned exterior cladding, the fascia and gutters go in after, and the truss or rafter design dictates what underlayment and ventilation actually work. We scope it from the plans before framing starts so the roof gets installed once, right.
Full Tear-Off and Replacement
When the decking is soft, the tile is spalling, and the flashing is done, there’s nothing to save. We strip it to the sheathing, replace damaged decking, and build back up with current code: high-temp synthetic underlayment, upgraded starter strip, and a ridge vent system that moves heat out of the attic. This is the cleanest roof we install, and the one where you see the most 15- to 20-year benefit from doing it right the first time.
New Construction Roofing
New construction in Northridge means working with your framing contractor, not against them. We install the roof on schedule, using the material spec that matches your plans, your HOA if you have one, and the city’s wildfire-zone requirements if your lot falls in that overlay. On detached ADUs and outbuildings, we usually install the same roof system as the main house so the property reads as one piece.
Reroofing in Northridge
Reroofing in Northridge is where we do our best work, because most of the roofs in this city don’t need a full replacement. They need the top layer handled, or the underlayment swapped, while the tile or shingles get reused. This is the job that separates the roofers who are honest from the ones who aren’t. A typical lift-and-relay reroof in Northridge runs $8,000 to $14,000, and an overlay where you add a second layer of shingles over a sound first layer runs $6,000 to $9,000, though we don’t overlay unless the existing roof genuinely qualifies.
Lift-and-Relay Tile Reroofing
This is our most common Northridge job, and the one we outlined in the opening. We remove the existing concrete tile, stack it on site, replace the failed underlayment with a high-temp self-adhered membrane, install new drip edge and flashing, and put the same tile back. The homeowner keeps the original curb look, gets a roof that actually sheds water, and pays about 60% of what a full tile replacement would cost. Most coastal roofers won’t touch this because it’s labor-intensive and they’d rather sell you new tile.
Shingle Overlay Where It Applies
If your existing shingle roof is a single layer, flat, and the decking is sound, an overlay can add a second layer and buy you 10 to 15 years at a real discount. It’s not right for every house, and if there’s any question about the decking, we won’t do it. We’ll always inspect first and tell you which way actually makes sense.
Trusted Brands We Service in Northridge
You’ll see a lot of roofing trucks in Northridge that only install one brand because that’s what their certification locks them into. We don’t have that limitation. We’re authorized to supply and install from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, so when we recommend Atlas for a budget-conscious reroof or GAF for a premium tear-off, it’s because it’s the right call for that house, not because it’s our only option. Whether you’re comparing GAF Timberline against Owens Corning Duration, or weighing Boral tile against Atlas, we install all of them and we’ll tell you the real difference before you choose. We keep common Northridge materials and accessories stocked for fast turnaround, which matters when a winter rain window is closing.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Northridge Homes
- Intact tile, dead underlayment. The classic Northridge failure. The concrete tile from the 60s and 70s still has decades of life, but the original felt underneath has been baked brittle by 40 summers of Valley heat. The leak shows up after the first hard winter rain, and the homeowner gets told they need a whole new tile roof when they actually need the tile removed, the underlayment replaced, and the same tile reinstalled.
- Wind-lift at ridges and edges during Santa Ana events. Northridge sits right in the path of strong Santa Ana winds, and the older ridge vent and starter strip fastening doesn’t meet current wind-load code. When the wind blows, the ridge cap lifts and rain gets in, or the edge shingles tear loose. We upgrade the fastening when we reroof, and it’s a real difference in how the roof holds.
- Flashing sealant baked out at penetrations. Attic temperatures in Northridge run 20 to 30 degrees hotter than the coast in summer, and that heat dries out the sealant around vents, chimneys, and pipe penetrations. The flashing looks fine from the ground, but water gets through the dried-up joints during the first real rain, and the leak is invisible until the drywall stains.
- Post-1994-quake retrofit roofs with mixed conditions. After the Northridge earthquake, a lot of homes had partial rebuilding, and that left roofs where one slope is new and the other is original, or where the re-roofed section used a different material than the rest. You get mismatched underlayment age, inconsistent flashing, and weird transition details. We scope those before we quote so the new work actually ties in cleanly.
Pricing for Roof Replacement in Northridge, CA
Here are honest numbers for the Northridge market. A full tear-off and shingle replacement on a 1,500-square-foot ranch runs $9,000 to $13,000. The same size home with concrete tile, lift-and-relay, runs $8,000 to $14,000. A two-story home with a full tile replacement runs $18,000 to $30,000. New construction on an average Northridge lot runs $11,000 to $20,000 for shingles and $18,000 to $30,000 for tile, before any access or grading complications. The variables that move the price: how much decking is shot, how high the roof is, whether you’re in a wildfire-zone overlay requiring Class A assemblies, and whether the existing tile is reusable. We give you a written line-item quote, and the number on it is the number you pay, unless we open up the roof and find damage we couldn’t see from outside, in which case we stop and show you photos before any change. Call (866) 217-3967 to schedule your free estimate.
We Also Serve Cities Near Northridge
Our Roof Replacement work covers all of the San Fernando Valley and the surrounding communities. Along with Roof Replacement in Northridge, we regularly handle jobs in North Hills, Encino, Van Nuys, and Valley Glen. Same crews, same material access, same straight answers.
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
Almost certainly not. The tile is likely fine. What’s failed is the underlayment underneath it, which is original to the house and 40 to 60 years old. The fix is a lift-and-relay: we remove the tile, replace the underlayment with a high-temp membrane rated for Valley attic heat, and reinstall your same tile. You keep the look, get a roof that doesn’t leak, and the cost is roughly 60% of a full tile replacement. Call (866) 217-3967 for a free inspection and a straight read on whether you need a full replacement or just the underlayment done.
It changes the material spec on new work and full tear-offs. Northridge sits in the Valley’s wildland-interface zone on the north and west edges, and the city’s current code requires Class A fire-rated assemblies in those overlay areas. That means the underlayment, the decking, and the venting all have to meet ember-resistance standards, not just the top material. On reroofs where you’re reusing existing tile, we bring the underlayment and edge detailing up to that standard while we’re in there. That’s not an upsell. It’s the code, and it’s the difference between a roof that survives a wind-driven ember event and one that doesn’t.
A square is 100 square feet of roof surface area. When a roofer says your roof is 18 squares, that means 1,800 square feet of actual roof plane, not the footprint of your house. It matters because every quote you get in Northridge will be priced per square, and the number of squares should match between quotes. If one contractor quotes 18 squares and another quotes 23 for the same house, one of them is measuring wrong or padding the job. We measure from the roof itself, not from satellite imagery, and the square count is on your written quote. Call (866) 217-3967 and we’ll walk the roof with you so you can see what we’re measuring.
Yes. Northridge is in Los Angeles city limits, so permits go through the city’s Department of Building and Safety, and they’re required for a full replacement or a reroof with structural changes. A simple overlay or minor repair doesn’t always trigger a permit, but any work that changes the roof assembly does. We pull the permits, we schedule the inspections, and the job isn’t done until the city signs off. That’s part of the written quote, not an add-on you find out about later.
Yes. The 1980s and 90s stucco homes around CSUN, especially in the 91330 ZIP, often have low-slope sections or flat additions that were originally done with materials that aren’t made anymore. We replace them with modern high-performance options, including modified bitumen and single-ply systems, in colors and profiles that read the same from the street but actually perform in the Valley heat. If you’re trying to keep a specific architectural look, we’ll show you material samples against the house before you sign anything. Call (866) 217-3967 for a free estimate on the flat section or the whole roof.
Written by Ruben Ibarra, Owner at Moreno Valley Roof Repair, serving Northridge and the San Fernando Valley with honest, options-based roofing advice and work since day one.