Roof Replacement in Northridge - Written Price, Workmanship Warranty

Fast, Reliable Roof Replacement Across Northridge

Roof replacement in Northridge typically runs between $14,000 and $32,000 depending on size, slope, and what’s under the shingles once we open it up. Most of the single-family homes here were built between the 1950s and mid-1970s, so they’re hitting that age where the decking, flashing, and underlayment are all failing together. We work across Northridge every week, from the streets around Dearborn Park to the newer rebuilds east of Reseda Boulevard, and we know which homes will need full re-sheathing before we even climb the ladder. Call (661) 219-7793 and we’ll give you a written price before any work starts.

Call (661) 219-7793

Here’s the part most roofers won’t say out loud: opening up a 20 to 25-year-old Northridge roof usually reveals more than worn shingles. You’ll often find original radiant barrier sheathing that has delaminated, truss anchors that don’t meet current seismic tie-down code, and flashing that the last crew nailed instead of properly lapped. We handle that with a simple process. Inspection first, allowances written into the contract, and any surprise priced and approved in writing before we touch it. That’s how Roof Replacement should work, and it’s how we’ve done it since 2000 under The Relay Visibility Guarantee.

Key takeaways:

• Full re-sheathing and seismic anchor upgrades are common on Northridge homes built before 1975 or rebuilt in the late 90s.
• Our written price comes before the job starts. The number on the page is the number on the invoice.
• Every job includes before-and-after photos and a live trackable arrival time.
• Manhattan-grade transparency, Northridge pricing. Call (661) 219-7793 for your free estimate.

Why Crestview Roofing Co Santa Clarita Is Northridge’s Preferred Roof Replacement Company

We’re part of the Relay Home Co. family, founded in 2000, and every roof we install in Northridge is backed by The Relay Standard: a written price before any work begins, a live trackable arrival time, before-and-after photos, and a digital invoice sent by text. Dylan Pace runs our crews, and he’s the first to tell you that the way to earn a Northridge homeowner’s trust is to show them exactly what’s under the shingles, not hide behind a vague bid.

Our technicians are background-checked and uniformed. You’ll know who’s pulling into your driveway, when they’ll arrive, and what they’re going to do. That matters in a city where a lot of roofers still work on a handshake and a verbal quote. We don’t. Every quote is written, itemized, and delivered before the job begins. The 365-Day Done Right Promise covers every repair for a full year, including a free second visit if something fails. On full replacements, you get the same written guarantee in your contract.

Northridge homeowners often find us through neighbors near California State University Northridge or the shopping corridors along Nordhoff Street and Tampa Avenue. The homes east of Reseda Boulevard have their own set of problems we’ll get into below. Our response time to anywhere in the 91324, 91325, and 91326 zip codes is typically same-week for estimates, and once your job is scheduled, you’ll have a live arrival time you can track on your phone.

Reroofing in Northridge

Reroofing in Northridge usually means removing the existing shingle layer and installing new material directly over the decking. On homes where the decking is still solid and the slope is moderate, this runs between $7,000 and $14,000 depending on square footage and whether you choose three-tab or architectural shingles. But here’s the local reality: a high percentage of Northridge homes don’t qualify for a simple overlay. Between the 1994 earthquake rebuild boom and the original 1960s construction, many roofs have structural issues that only show once the old shingles come off.

When the decking survives

If our inspection finds that the plywood or OSB underneath is still flat and dry, a reroof is straightforward. We pull the old shingles, inspect the underlayment, replace any cracked or damaged sections, and lay new shingles. We recommend architectural shingles from GAF or CertainTeed for Northridge because the heavier material holds up better under UV exposure and Santa Ana wind gusts.

When it doesn’t

What we find on many 1960s builds around Dearborn Park and Sherwood Forest is decking that has warped, delaminated, or been patched over too many times. Once we strip to the rafters, the job changes. We’ll show you photos, give you a written price for the added re-sheathing, and get your signature before we cut a single new board. The goal is to finish the job with no surprises, and that starts with straightforward communication before we ever ask you to pay a cent more.

Flat Roof Replacement in Northridge

Flat Roof Replacement in Northridge shows up most often on the commercial spaces near CSUN, on additions off the back of 1950s ranch homes, and on patio covers. These roofs fail differently than pitched ones. Northridge’s intense summer sun bakes the membrane until it cracks, then winter downpours find every seam that opened up. A flat roof replacement in Northridge typically runs $9,500 to $22,000 depending on system type and whether the existing insulation is waterlogged.

Membrane options

For most Northridge homes with low-slope or flat sections, we recommend either a modified bitumen system or TPO. Modified bitumen has been around for decades and handles foot traffic well, which matters if you use the flat section as a deck. TPO reflects heat better, which is a real plus during August in Northridge when rooftop temperatures can hit 160°F before noon. We’ll show you both options with written pricing before you decide.

Seismic and drainage considerations

Flat roofs on older Northridge homes often drain through a single scupper or a poorly sloped deck. The 1994 earthquake didn’t do these any favors either. We always check the slope, install proper crickets if needed, and make sure the roof can carry the weight of standing water without sagging. If the roof sits over a living space, we’ll also make sure the seismic clips and blocking under the deck are up to current code. Any flat roof replacement we do includes a written drainage plan, not just new membrane.

Trusted Brands We Service in Northridge

We install and repair roofs using manufacturer-backed materials from GAF, CertainTeed, and Owens Corning. These are the brands Northridge homeowners see on the best roofs in the neighborhood, and they’re what we stock locally so a reroof doesn’t stall waiting on a special order. GAF Timberline architectural shingles are our most common recommendation for the pitched roofs around Northridge because the layered build handles UV exposure well and comes with a strong manufacturer warranty. For flat sections, we use CertainTeed’s membrane lines. Material quality is never a question when the shingle has a manufacturer name you recognize and a written warranty behind it.

Common Roof Replacement Problems We See in Northridge Homes

• UV-brittle composition shingles. Northridge regularly sees summer days over 100°F. That heat bakes shingles until the asphalt dries out, the granules slough off into the gutters, and the underlayment is exposed to rot. By the time homeowners notice, the shingles are often beyond repair.
• Failing 1960s radiant barrier sheathing. Homes east of Reseda Boulevard built in the 1960s and 70s often have original radiant barrier sheathing. It degrades over time, warps, and creates wavy deck lines you can see from the street. When we see those waves, we know a simple overlay won’t work.
• Santa Ana wind damage to starter strip and flashing. The Santa Ana winds that blow through the San Fernando Valley in the fall tear at poorly nailed starter strip along the eaves. Once the starter strip lifts, the first course of shingles follows, and water gets in behind the flashing at penetrations.
• Hidden leaks that only show during winter downpours. Northridge gets most of its rain in a handful of intense winter storms. Flashing that failed during a dry, windy fall stays hidden until the first big storm. By then, the decking under the shingles is already soft.

Pricing for Roof Replacement in Northridge, CA

We Also Serve Cities Near Northridge

Our crews work throughout the west San Fernando Valley. If you’re in Winnetka, Reseda, Porter Ranch, or Chatsworth, we can handle your roof replacement the same way we do in Northridge: written pricing, live arrival times, photo updates, and a year of coverage on every repair. The same crew that shows up on a Northridge street today can be on your block tomorrow.

FAQs About Roof Replacement in Northridge

What Opening a Northridge Roof Actually Reveals

On a 1962 ranch near Dearborn Park, our crew opened up a roof after the homeowner asked for a simple reroof. The original radiant barrier sheathing had delaminated, leaving wavy deck lines that had accelerated shingle granule loss for years. We stripped to the rafters, installed new CDX decking with upgraded H-clips, added ice and water shield in the valleys, and re-anchored the trusses to meet current seismic tie-down code before laying a GAF Timberline architectural shingle roof. The finished roof cost more than a simple overlay would have, but the homeowner approved every change in writing before we did the work. That’s the difference between a roof that looks fine from the street and one that actually is.

Northridge’s post-1994 earthquake rebuilds are now 20 to 25 years old, and many still carry the original radiant barrier sheathing east of Reseda Boulevard. Local roofers can spot them from the street by the wavy deck lines. Those waves aren’t cosmetic. They mean the sheathing is degrading and the roof is flexing, which breaks the seal on the shingles and lets water sit against the underlayment. A full replacement with upgraded seismic anchors is the standard fix. Not a simple overlay. Not a patch. If you’re in that situation, call (661) 219-7793 and we’ll walk you through what your specific roof needs, in writing, before you spend a dollar.

Written by Dylan Pace, Owner at Crestview Roofing Co Santa Clarita, serving Northridge and the surrounding San Fernando Valley since 2000.