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
A full roof replacement on a Northridge home typically runs $14,000 – $32,000 depending on material choice, roof size, and what we find once the old roof comes off. For flat roof sections common on many 1960s and 1970s additions, expect $9,000 – $18,000. Most replacements here take 3 – 7 working days once materials are staged and permits are cleared. If you’re weighing whether to repair or replace, we’ll give you a straight answer, not a sales pitch. Call (855) 382-1073 to schedule a free estimate and we’ll walk the roof with you.

Northridge isn’t just another Valley neighborhood to us. We know the ranch tracts off Reseda Boulevard, the hillside homes north of Devonshire, and the flat-roof additions that went up fast in the 1970s. When you call Barnwood Roofing, you’re talking to a crew that has opened up Northridge roofs and knows what’s under them.
Why Barnwood Roofing Is Northridge’s Preferred Roof Replacement Company
We built our reputation in Northridge by telling homeowners what they actually need, not what pads an invoice. Ruben Calloway started Barnwood Roofing with a simple rule: inspection first, recommendation second. That means when we look at your roof, we’re looking for the cheapest correct fix. If a repair will buy you another five years, we’ll say so. If replacement is the honest call, we’ll show you why with photos.
Northridge homeowners have dealt with a lot of post-1994 roofing work that was rushed, cosmetic, or just plain incomplete. Our crew sees the fallout every week: underlayment that was never replaced under reused concrete tile, decking that rotted because flashing was reused instead of replaced, and roof-to-wall connections that don’t meet current code. Because we handle inspection, repair, and replacement under one roof, we can fix all of it without handing you off to another company.
We work with seven roofing manufacturers, including CertainTeed, Owens Corning, and IKO, so the material we recommend for your Northridge home fits your budget and your roof’s actual needs. We’re not married to one brand. We’re married to doing the job right.
Styles & brands we work with






Flat Roof Replacement in Northridge
Flat Roof Replacement in Northridge is a job we handle more often than most people expect, because so many 1960s and 1970s ranches here came with flat-roof additions, carports, or patio covers. These low-slope sections fail differently than pitched roofs. Water pools, seams split under UV, and a single failed penetration can rot a large section of decking before anyone notices. In Northridge’s hot, dry summers, membrane surfaces take a beating from intense sun exposure, and when a winter storm finally arrives, the damage is already done underneath.
What a Flat Roof Job Involves
We remove the old membrane and any wet insulation or damaged decking, then install new tapered insulation where needed and a new single-ply or modified bitumen membrane. Flashing at walls, drains, and penetrations gets replaced, not reused. We seal every seam and test for proper drainage before we call the job done.
When Replacement Is the Right Call
If your flat roof is over 20 years old, has visible cracks or blistering, or shows water staining on the interior ceiling below, patch repairs are usually money down the drain. The membrane has lost its flexibility. A new membrane on a typical 1960s Northridge addition runs $9,000 – $18,000 depending on size and condition of the decking below.
Roof Installation in Northridge
Roof Installation in Northridge means something specific here: tearing down to the deck on a 1950s – 1970s ranch and rebuilding the roof system so it actually protects the home. We’re not slapping new shingles over old problems. A proper installation includes new underlayment, drip edge, flashing at every penetration and valley, and ventilation that lets the attic breathe. In Northridge, where summer attic temperatures routinely exceed 130°F, ventilation isn’t optional, it’s the difference between a shingle that lasts 30 years and one that cooks off in 15.
New Construction and Full Tear-Off
For additions and new builds in Northridge, we coordinate with your framing crew or general contractor and install the roof system from the deck up. On full replacements, we remove everything down to the sheathing, inspect the deck, and replace any rot or delamination before the new system goes on.

Shingle and Tile Options
Most Northridge homeowners replace concrete tile with architectural asphalt shingles to cut weight and cost, or they stick with concrete tile for longevity. Both are fine choices. We install Atlas and CertainTeed architectural shingles regularly, and we can source concrete or clay tile when matching an existing roof or preserving a home’s original character matters.
Trusted Brands We Service in Northridge
We install and work with roofing products from seven manufacturers, including CertainTeed, Owens Corning, IKO, and Atlas. That matters for Northridge homeowners because it means we can compare products across price and performance tiers instead of pushing whatever’s in the warehouse. You pick the level of warranty and material performance you want, and we match it to your roof’s exposure and your budget. Parts and materials for common Northridge roof types are available quickly through our supplier network, so you’re not waiting weeks on a special order unless you choose to.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Northridge Homes
- Failed underlayment under reused concrete tile. Decades-old concrete tile roofs in Northridge often had new tile set over old or missing underlayment after the 1994 quake. The tile looks fine from the street, but the first heavy winter rain sends water straight to the decking.
- Roof-to-wall connections that don’t meet current code. Cosmetic post-quake roof repairs frequently skipped shear nailing and proper anchor strapping. When a re-roof permit opens the roof, the building department requires those upgrades, and they should be in your quote from day one.
- Cracked and slipped concrete tiles from settling and thermal movement. Northridge sits on ground that has shifted for 30 years since the earthquake, and the clay soil expands and contracts with every season. Tiles crack, slip, and expose flashing at valleys and penetrations.
- Hidden rot at old flashing points. On 1960s ranches off Balboa and Nordhoff, we routinely find decking rot at chimneys, plumbing vents, and valley intersections where flashing was reused instead of replaced decades ago. The roof surface looks tired but serviceable; the structure underneath is not.
Pricing for Roof Replacement in Northridge, CA
A full roof replacement on a typical Northridge ranch runs $14,000 – $32,000. Concrete tile replacement lands at the higher end, architectural asphalt shingles at the lower end. Flat roof sections run $9,000 – $18,000. Roof decking replacement, if needed, adds $2 – $4 per square foot for the affected area. What moves a quote is what we find after tear-off: delaminated decking, framing that needs shear upgrades, or failed waterproofing at penetrations. We write allowances into the contract for exactly these conditions, and any surprise gets priced in writing for your approval before we proceed. Call (855) 382-1073 for a free, itemized estimate.
We Also Serve Cities Near Northridge
Barnwood Roofing serves homeowners across the San Fernando Valley. If you’re in North Hills, Encino, Van Nuys, or Valley Glen, our Roof Replacement team is already working in your neighborhood. The same crew, the same inspection-first approach. Call us at (855) 382-1073 to schedule a free estimate.
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 many Northridge homes built between the 1950s and 1970s still have original or cosmetically repaired roof structures. Once we remove the old tile or shingles, we may find rotted decking, failed underlayment, or roof-to-wall connections that don’t meet current code. We write allowances for these conditions into the contract up front, and we price every discovery in writing for your approval before we proceed. You’re never billed for work you didn’t authorize. Call (855) 382-1073 for an exact quote.
Yes, commonly. A re-roof permit in Northridge requires roof-to-wall connections and shear nailing to meet current code once the roof is opened. Homes that received only cosmetic post-1994 quake repairs often fall short here. We identify likely upgrades during the initial inspection and write them into the contract as line items, so they’re not a surprise later. Call (855) 382-1073 to schedule a free inspection and estimate.
Line up the materials, the underlayment, the flashing scope, the decking allowance, and the permit line. If one bid is $8,000 cheaper, find out what’s missing. Is the underlayment the same grade? Are they replacing flashing or reusing it? Is the decking allowance realistic for Northridge’s post-1994 housing stock? A low bid that reuses old flashing or skips the permit will cost more in three years. We provide itemized, written quotes so you can compare dollar for dollar. Call (855) 382-1073 for a free estimate.
Yes. We replace cracked and slipped concrete tile roofs across Northridge, including the 91324, 91325, and 91326 zip codes. We can match existing concrete tile or convert to architectural asphalt shingles if you want to cut weight and cost. Every option starts with an inspection of what’s underneath the tile, because that’s where the real damage usually is. Call (855) 382-1073 to schedule a free inspection.
We install roofing products from seven manufacturers, including CertainTeed, Owens Corning, IKO, and Atlas. The brand we recommend depends on your roof’s exposure, your home’s structure, and your budget, not on what we have sitting in a warehouse. We’ll compare options across brands and price tiers so you make an informed choice. Call (855) 382-1073 to talk through your options or Roof Replacement in Northridge estimates are free.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving Northridge and the San Fernando Valley. Call (855) 382-1073 for a free roof replacement estimate.