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 typically runs $9,800 – $18,500 for a standard single-story ranch with asphalt shingles, and $16,000 – $34,000+ for tile re-lays or flat roof work on larger homes. Most jobs take 2 – 5 days once materials are on site. We work throughout the 91324, 91325, 91326, and 91330 ZIP codes, from the streets off Reseda Boulevard to the cul-de-sacs north of Nordhoff. If you have a Northridge roof that’s showing its age or leaking after a hot Valley summer, call (866) 705-2978 and we’ll schedule a free inspection before you commit to anything.
Key Takeaways
- Northridge roof replacements cost $9,800 – $34,000+ depending on material, size, and what the tear-off uncovers.
- Many Northridge tile roofs look fine from the curb but hide original 1960s underlayment that was never replaced after the 1994 earthquake.
- We carry seven manufacturer lines – including IKO, Atlas, and Boral – so material choice follows your roof’s actual condition, not what’s in stock that week.
- Every estimate is free, written, and line-itemed. You’ll know what you’re paying for before the crew ever pulls a shingle.
- Marquis Roof Repair is led by Ron Thibodeau, a lifetime roofing specialist who investigates before recommending replacement.
Styles & brands we work with
Why Marquis Roof Repair Is Northridge’s Preferred Roof Replacement Company
Northridge homeowners call us because we don’t open with a sales pitch. We open the roof. That matters here more than almost anywhere in the Valley, because the 1994 earthquake left thousands of Northridge roofs with a particular kind of hidden damage: tile re-laid over original underlayment that was never replaced. A roof that looks 15 years old from the street can be sitting on a membrane from 1963. Our Roof Replacement team starts every Northridge job with a diagnostic inspection that includes pulling tiles at the eaves and valleys to check what’s actually underneath. When Ron Thibodeau walks your roof, he’s looking for the failure mode specific to this neighborhood – not just counting shingles.
We’ve worked on homes near CSUN, throughout the Sherwood Forest pocket, and up into the hills off Devonshire where Santa Ana winds chew through exposed ridges. That local pattern recognition means we know what a Northridge roof needs before we open it up. And when we do open it, we price what we find in writing before we touch it.
Asphalt Shingle Roof Replacement in Northridge
Asphalt Shingle Roof Replacement in Northridge is the most common job we do, and it’s the right call for most of the 1950s – 1970s ranch and tract homes that define the neighborhood. You’re replacing the entire shingle system – old shingles torn off, underlayment replaced, flashing re-set at every penetration, and new architectural shingles installed over clean decking. A typical Northridge ranch runs $9,800 – $14,500 for architectural shingles, depending on square footage and how much decking repair the tear-off reveals.
What the Tear-Off Tells Us
Every shingle roof has a story once you pull it. In Northridge, that story usually involves three decades of Valley heat baking the underlayment into something that cracks like old leather. We look for dry rot at the eaves, decking that’s gone soft around penetrations, and flashing that shifted during the ’94 quake and was never re-sealed. If we find compromised decking, we replace it before the new roof goes down – priced and written into the job, never sprung on you at the end.
Architectural Shingles That Hold Up to Valley Heat
Northridge summers regularly push past 100°F, and that heat is brutal on cheap three-tab shingles. We recommend architectural shingles for nearly every Northridge replacement because they carry higher wind ratings and resist the thermal cycling that causes curling and granule loss. Through our brand portfolio, we can spec IKO, Atlas, or Boral architectural lines depending on your budget and the roof’s exposure. You pick the material; we install it to the Marquis standard.
New Roof Installation in Northridge
New Roof Installation in Northridge covers two situations: a complete tear-off and replacement on an existing home, or a roof on new construction – an addition, an ADU, or a ground-up build. For tear-offs, new installation means stripping everything to the decking, replacing any damaged sheathing, laying fresh underlayment, and setting a fully new roof system with all-new flashing. Expect $11,000 – $18,500 for shingles on a typical Northridge home, and $18,000 – $34,000+ for tile or flat systems on larger properties.
When New Installation Beats Another Patch
Some Northridge homeowners ask if they can get a few more years with another repair. Sometimes yes. But when the decking is water-damaged in multiple spots or the underlayment has failed across the roof’s full slope, patching becomes throwing money at a roof that’s already done. Our repair-first philosophy means we’ll tell you honestly when replacement isn’t necessary. It also means we won’t hesitate to tell you when it is.
New Construction and Additions
If you’re building an ADU or putting a roof on new construction in Northridge, we coordinate with your general contractor to hit framing, sheathing, and roofing milestones on schedule. New construction gives us a clean slate – no hidden quake damage – and we price it accordingly. You still get the same brand options and the same written, line-itemed estimate before the first nail goes in.
Trusted Brands We Service in Northridge
We’re authorized to install products from seven major roofing manufacturers, including GAF in Northridge, which means your roof gets the material that actually fits – not whatever one brand happens to be in the warehouse. If your roof’s pitch, sun exposure, and budget point toward IKO’s Dynasty line, that’s what we spec. If Atlas StormMaster makes more sense for a ridge that takes Santa Ana wind head-on, we go that direction. For Northridge tile re-lays, Boral’s concrete and clay profiles are often the right match for the neighborhood’s mid-century character. Seven manufacturer lines, one point of contact. That’s how we keep Northridge homeowners from getting talked into the wrong roof by a contractor with only two products on the truck.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Northridge Homes
- Post-quake re-lays over dead underlayment. After the 1994 Northridge earthquake, thousands of tile roofs were lifted, re-laid, and called done – without replacing the original felt or membrane underneath. That 30-year-old underlayment is now failing, and the leak shows up inside the house before it shows up on the roof.
- Valley heat baking shingles and underlayment. Northridge routinely hits 100°F+ in July and August. Asphalt underlayment turns brittle, shingles lose granules faster, and the first winter rain finds every crack the summer created.
- Seismic settling that shifted flashing. The ’94 quake didn’t just crack walls – it moved flashing at valleys, skylights, and chimneys. We still find drip edge and step flashing that’s been letting water behind the stucco for years, hidden until the roof comes off.
- Dry rot at the eaves and decking. Older Northridge ranch homes often have minimal overhang, which means rain and irrigation splash reach the fascia and decking edges. By the time we open the roof, a surprising number of homes need decking replacement at the perimeter before new roofing can go down.
Pricing for Roof Replacement in Northridge, CA
Here’s what Northridge homeowners can expect, in real numbers. A standard asphalt shingle replacement on a 1,200 – 1,800 sq ft ranch runs $9,800 – $14,500. A full tear-off with significant decking replacement pushes $15,000 – $18,500. Concrete or clay tile re-lay work on a typical Northridge home starts around $16,000 and can reach $34,000+ if the original underlayment is shot and the decking needs extensive repair. Flat roof systems on the 1980s – 90s condo and apartment stock run $11,000 – $22,000 depending on membrane type and insulation. Every estimate is free, written, and line-itemed, so you can compare bids without guessing. Call (866) 705-2978 to schedule yours.
We Also Serve Cities Near Northridge
We serve Northridge and the surrounding communities, including North Hills, Encino, Van Nuys, and Valley Glen. If you’re in one of those neighborhoods and need Roof Replacement work, the same inspection-first process applies – we’ll look, we’ll tell you what we find, and we’ll quote it in writing before anything starts.
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
You may. The risk is hidden: many post-quake re-lays in Northridge simply reset existing tiles over the original 1960s underlayment, which is now brittle, cracked, and leaking into the decking beneath. The tile can look decent while the system under it has failed. The only way to know is to lift tiles at the eaves and valleys and inspect what’s below. We do this as part of our free estimate. If the underlayment is gone, a full replacement is the honest answer. Call (866) 705-2978 for an inspection – you won’t get a push to replace if the roof doesn’t need it.
The Valley’s heat bakes asphalt underlayment brittle and accelerates granule loss on low-grade shingles, so the material you pick matters more here than in coastal LA. We steer Northridge homeowners toward architectural shingles with higher thermal ratings and full underlayment replacement – not a re-lay over old felt. Tile and flat roofs need heat-resistant membranes rated for sustained high temperatures. We’ll spec materials from IKO, Atlas, or Boral that are actually suited to Northridge summers, not just whatever’s cheapest.
Yes, often. When we pull a permit for a Northridge roof replacement, LADBS requires the new roof to meet current code – which can mean adding or upgrading underlayment, improving nailing patterns, or replacing damaged decking that’s now code-deficient. Rather than hiding these costs, we write allowances into your contract for decking repair and code upgrades, with any change priced and approved in writing before work begins. If a bid seems suspiciously low, ask whether the contractor is actually pulling a permit.
Compare what’s written, not the bottom line. The big spread in Northridge bids usually comes down to three things: whether the contractor included full underlayment replacement, whether they wrote allowances for decking repair, and whether they’re using architectural-grade materials or budget three-tab shingles. Our quotes are line-itemed so you can see exactly where every dollar goes. We’ll also explain, honestly, where a lower bid is cutting corners – and where a higher one is padding.
We install products from seven major manufacturers, including IKO, Atlas, Tamko, and Boral. Because we’re not tied to a single brand, the recommendation follows your roof’s pitch, exposure, and budget – not what we happen to stock. For Northridge’s mid-century tile homes, we often spec Boral concrete tile. For architectural shingle replacements, IKO and Atlas lines both offer strong options depending on the roof’s wind and sun exposure.
Call Marquis Roof Repair for Your Northridge Roof Replacement
If your Northridge roof is nearing the end of its life – or if you suspect the 1994 earthquake left something hiding under your tiles – start with an inspection. Ron Thibodeau and our team will walk the roof, pull what needs pulling, and give you a straight answer with a written, line-itemed price. The estimate is free. The recommendation is honest. Call (866) 705-2978 to schedule yours today.
Written by Ron Thibodeau, Owner at Marquis Roof Repair, serving Northridge and the San Fernando Valley.