Fast, Reliable Roof Replacement & Installation Across North Hills
A full roof replacement in North Hills typically runs $12,500-$28,000 depending on size and materials, with most asphalt shingle tear-offs completed in two to three days. If your home carries a double-layer roof from the post-’94 quake repair rush, L.A. City code requires complete removal before any new installation, which adds labor but protects your structure long-term. We’re Ridgeline Roofing Co., and we’ve been replacing and installing roofs in North Hills since 1984 - long enough to have worked on the original roofs, the emergency re-roofs after the Northridge earthquake, and now the wave of replacements those rushed jobs are demanding. Call us at (844) 563-1816 for a free, no-pressure estimate.
North Hills sits just east of the 1994 Northridge earthquake’s epicenter, and that proximity shaped this neighborhood’s housing stock in ways that still matter today. Thousands of homes received rushed emergency re-roofing in 1994-1996, often lightweight concrete tile laid over wood structures that had already shifted, or second layers of asphalt shingle installed under insurance pressure. Those roof systems are now hitting their 30-year failure threshold all at once. We know the 1950s-1970s tract homes along North Hills streets like Chase Street and Nordhoff - the low-pitched gables, the original 3-tab shingles, the tar-and-gravel flats - because we’ve been climbing them for over four decades.
Our crews are based in the San Fernando Valley, not trucked in from out of state after a storm. When you call (844) 563-1816, a live person answers, 24 hours a day. We can usually inspect within 24-48 hours and start most replacements within a week of estimate approval.
Why Ridgeline Roofing Co. Is North Hills’s Preferred Roof Replacement & Installation Company
We’ve earned our reputation in North Hills one roof at a time. Homeowners here remember the contractors who disappeared after ’94, and they notice the ones who stayed. Ridgeline Roofing Co. has been in the Valley since 1984 - over 42 years of standing behind our work, not chasing the next hailstorm. Our Roof Replacement & Installation team hires locally, trains apprentices into journeymen, and plans to be here in thirty years.
Our technicians are background-checked and uniformed. They photograph every inspection from your actual roof, not the driveway, and walk you through what they found. The 90-Day Done Right Promise means if something’s not right, we come back and make it right - no paperwork, no arguing, no runaround. The price we quote is the price you pay.
Phones are staffed by a live person around the clock, including nights, weekends, and the middle of a Santa Ana wind event. We answer because we’ve been the ones homeowners call when a lifted ridge cap is letting water into the attic at 2 a.m.
Our Roof Replacement & Installation Services in North Hills
Full Roof Replacement
North Hills roof repair can only do so much - full replacement is what most North Hills homes need right now. The post-’94 double-layer roofs have exceeded their service life, and L.A. City code mandates complete tear-off before new installation. On a 1950s tract home on Chase Street in North Hills, we found a two-layer asphalt roof installed after the ’94 quake. The top layer had lost all granulation on the south-facing slope, and the lower layer’s felt was rotting from trapped moisture. We performed a full tear-off to meet L.A. City code, installed new Owens Corning Duration shingles with a synthetic underlayment, and replaced corroded chimney flashing that had hidden rotted sheathing. A typical full replacement in North Hills runs $12,500-$22,000 for asphalt shingle on a standard single-story home, and $18,000-$28,000 for tile or metal systems.
Asphalt Shingle Installation
Asphalt shingles remain the practical choice for most North Hills tract homes, but the San Fernando Valley heat-island effect demands better materials than the 3-tab products installed in the 1960s. Summer highs of 103-108°F bake south- and west-facing slopes, accelerating granule loss and thermal splitting. We install architectural and premium shingles from GAF, Owens Corning, and Atlas with enhanced UV resistance and longer manufacturer warranties. For a 1,600-square-foot roof in the 91343 ZIP code, expect $12,500-$18,500 including tear-off, synthetic underlayment, and new flashings.
Tile Roofing
Many North Hills homes received lightweight concrete tile in the post-quake rush - tile that seemed fine but was installed on structures that had settled and shifted. Those systems are now failing as the underlayment beneath the tile degrades. True clay or concrete tile replacement requires careful structural assessment, especially on homes that took earthquake damage. We handle the full process: structural evaluation, tear-off of failed lightweight systems, proper battens and underlayment, and installation of Boral or other quality tile lines. Tile replacement in North Hills typically ranges $22,000-$35,000.
Metal Roofing
Metal roofing makes sense for North Hills homeowners who want to solve the heat problem rather than fight it repeatedly. Reflective metal systems reduce attic temperatures significantly during those 105°F July afternoons, and they stand up to Santa Ana winds that lift conventional ridge caps. Standing seam and metal shingle installations run $24,000-$38,000 in this market, with lifespans that outlast asphalt by decades.
Flat and Low-Slope Roofing
The neighborhood’s occasional flat roofs - garage additions, patio covers, mid-century modern elements - require specialized membranes and proper gutters and accessories to manage drainage. We install TPO, modified bitumen, and built-up systems designed for the Valley’s thermal cycling and UV exposure.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in North Hills
We are authorized installers for seven manufacturer lines: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For North Hills homeowners, this means no substitutions, no “equivalent” products you didn’t agree to, and full manufacturer warranty registration. We stock common shingle colors and profiles locally, so material delays don’t stretch your job across weeks. Owens Corning Duration and GAF Timberline HDZ are the most requested lines in 91343 and 91393 - the dimensional look suits the neighborhood’s stucco exteriors, and the wind ratings matter when the Santa Anas arrive.
Common Roof Replacement & Installation Problems We See in North Hills Homes
- Double-layer roofs exceeding code limits. Many post-’94 insurance repairs added a second shingle layer over existing material. L.A. City now requires full tear-off, adding $3,000-$5,500 in labor and disposal but preventing trapped moisture and structural overload.
- Corroded galvanized chimney flashings. Hasty post-quake repairs used galvanized metal that has rusted through after 30 years. The leaks were hidden under interior paint layers, so what looks like minor flashing work often reveals rotted sheathing and damaged rafters at the chimney saddle - a scoping issue we encounter far more frequently in North Hills than in unaffected Valley cities.
- Thermal splitting and granule loss on south-facing slopes. The Valley’s heat-island effect pushes summer temperatures to 103-108°F, destroying asphalt shingles faster than coastal climates. We regularly find bare fiberglass mat on south and west exposures while north-facing slopes still carry granules.
- Santa Ana wind damage to ridge caps and flashings. Fall wind events funneling through valley gaps produce gusts above 50 mph that lift aging ridge caps on low-pitch roofs. We secure replacements with manufacturer-specified fasteners and adhesives, not the minimal nailing that failed the first time.
Pricing for Roof Replacement & Installation in North Hills, CA
Here is what roof replacement costs in the North Hills market in 2025:
| Service | Typical Range |
|---|---|
| Asphalt shingle tear-off and replacement (1,500-2,000 sq ft) | $12,500-$18,500 |
| Double-layer tear-off (additional) | $3,000-$5,500 |
| Premium architectural shingle upgrade | $16,000-$22,000 |
| Concrete or clay tile replacement | $22,000-$35,000 |
| Standing seam metal roof | $24,000-$38,000 |
| Flat/low-slope membrane replacement | $8,500-$15,000 |
| Chimney flashing replacement (if rot found) | $1,200-$3,500 |
| Rotted sheathing/rafter repair (per area) | $800-$2,500 |
What moves your price within these ranges: roof size and pitch, number of layers to remove, accessibility (single-story tract home vs. two-story with steep pitches), and whether hidden rot requires structural repair. We provide upfront pricing - the number on your estimate is the number on your invoice. Estimates are free, and we offer a permanent 5% senior and veteran discount. Call (844) 563-1816 to schedule.
We Also Serve Cities Near North Hills
Our crews work throughout the central and east Valley. If you’re in North Hills or nearby Northridge, Van Nuys, Valley Glen, or Encino, we cover your area with the same response time and local knowledge. The post-quake roofing legacy extends across much of this corridor, and we’ve replaced roofs on homes from every era of Valley construction.
Serving North Hills, CA - Our Local Coverage Area
We’re based in the North Hills 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 - Roof Replacement & Installation in North Hills
Yes - if your roof was replaced in 1994-1996, there is a significant chance it carries two layers of asphalt shingle, which L.A. City code now requires to be fully removed before any new installation. We inspect for this during every estimate using core samples at multiple points. Call (844) 563-1816 and we’ll check - estimates are free.
Yes - in North Hills, we consistently find that chimney flashings repaired hastily after ’94 used galvanized metal that has since corroded through. The leaks were hidden for years under successive interior paint layers, so what looks like a minor flashing job frequently reveals rotted sheathing and damaged rafters at the chimney saddle. We photograph the condition from the roof and show you before any work begins.
Premium architectural shingles with enhanced UV resistance and thicker fiberglass mat outperform standard 3-tab products on south- and west-facing slopes in North Hills. We typically recommend Owens Corning Duration or GAF Timberline HDZ for these exposures, installed with synthetic underlayment that handles thermal cycling better than traditional felt. The upgrade cost is usually $2,500-$4,000 over standard architectural grade.
We secure ridge caps with manufacturer-specified fasteners at closer intervals than minimum code, plus approved adhesives on pitches below 4:12 where wind uplift is highest. For homes in exposed locations near valley gaps, we may recommend continuous ridge vent systems with integrated fastening rather than individual cap shingles. This is standard on our North Hills replacements - not an upsell.
No - L.A. City code prohibits installing a new roof over two existing layers, and we would not do so even if it were permitted. A third layer would overload your structure, trap moisture, and void manufacturer warranties. We perform complete tear-offs, inspect and replace damaged sheathing, and install your new roof to code. The additional labor is built into your upfront estimate - no surprises.
Ready to get your North Hills roof done right? Call Ridgeline Roofing Co. at (844) 563-1816 for a free estimate. A live person will answer, day or night, and we can usually inspect within 24-48 hours. We’ve been standing behind Valley roofs since 1984, and we’re not going anywhere.
Written by Pete Navarro, Owner at Ridgeline Roofing Co., serving North Hills since 1984.