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 Installation Across Tarzana
Roof installation in Tarzana usually means a full tear-off and replacement on a 1950s-to-1970s ranch home, and the final price depends heavily on what’s underneath the old roof. A straightforward shingle re-roof on a typical Tarzana single-story runs $14,000 to $22,000, while standing seam metal lands between $28,000 and $45,000 depending on decking, pitch, and access. We’ve spent years looking at what Tarzana roofs hide once the old material comes off, so our quotes account for those realities before work starts, not after. If you’re planning a roof replacement, call (341) 217-2677 and we’ll walk you through what your specific home will need.
Key Takeaways
- Most Tarzana ranch homes need full tear-offs, not overlays, because of aging wood shake and composition shingle roofs.
- Skip sheathing under original wood shake roofs is common here and triggers a code-required re-deck, which we write into the contract as a priced allowance before day one.
- You’ll get a written price before any work starts, and every installation carries the 365-Day Done Right Promise.
- Crews serve Tarzana directly, with scheduling and dispatch coordinated from the brand’s Los Angeles office.
Why Mercer Roofing Co Woodland Hills Is Tarzana’s Preferred Roof Installation Company
Tarzana homeowners call us because we’ve learned what this specific housing stock demands. The sprawling ranches south of Ventura Boulevard, the tighter post-war tracts north of the 101, and the hillside properties off Reseda and Tampa all present different roof geometries and material histories. A roof on a 1960s ranch off Vanalden Avenue behaves differently than a 1990s tile roof on a custom estate south of the Boulevard. We quote for that difference, not against a generic square-footage formula.
Every technician who arrives at your Tarzana door is background-checked, identity-verified, and uniformed under the Threshold Verified standard, and we send their name and photo to you before the visit. That matters to the parent home alone with kids, or the older homeowner who wants proof of who’s at the door. Grant Whitlock leads our team, and the same standard applies to every job, every visit, every time. You also get a live person when you call (341) 217-2677, not a voicemail.
We’re part of the Threshold Group family of home-service companies, founded in 2000. Each location is independently owned and operated, but every one is contractually held to the same vetting, badging, and quality standards. For Tarzana residents, that’s a concrete detail, not a slogan: the person on your roof has passed a background check and will show you a photo ID at the door.
Styles & brands we work with
Shingle Roof in Tarzana
Shingle roof installation in Tarzana typically runs $14,000 to $22,000 for a full tear-off and replacement on a single-story ranch, with architectural asphalt shingles from GAF, CertainTeed, or Owens Corning. Most Tarzana homes getting a shingle roof need the old wood shake or degraded composition shingle removed first, which means disposal, deck inspection, and usually new underlayment before the first shingle goes down. The price includes that tear-off work. It does not assume your decking is in good shape, and we explain that before you sign anything.
Architectural Shingles Built for Tarzana Sun and Wind
Tarzana’s dry heat and UV intensity cook standard three-tab shingles fast, so we recommend architectural shingles with a higher wind rating for almost every home here. The thicker profile also hides minor deck irregularities better on older ranch homes where framing has settled. We install GAF Timberline, CertainTeed Landmark, and Owens Corning Duration lines, all manufacturer-recognized and backed by their material warranties.
When a Tarzana Homeowner Needs a Shingle Roof
If your roof has curling, cracked, or missing shingles, granule loss showing in the gutters, or leaks around valleys and pipe boots, the shingle roof has likely reached the end of its useful life. Tarzana’s seasonal Santa Ana winds will find loose shingles fast, and winter rains follow, so addressing wear before the windy season saves you from interior damage. A visual check is free, and we’ll tell you honestly if you have another few years or need to plan for replacement.
Standing Seam Metal Roof in Tarzana
Standing seam metal roof installation in Tarzana generally runs $28,000 to $45,000 on a typical ranch home, with the range driven by roof complexity, decking condition, and whether you’re adding insulation or radiant barrier. Metal is a strong fit for Tarzana’s low-pitch and flat sections on mid-century homes, where asphalt shingles can pond water and fail early. It handles the Santa Ana wind season without losing panels, and the reflective surface cuts attic heat in Tarzana summers.
Metal Roofing Details That Matter on Tarzana Ranches
Standing seam panels lock together with concealed fasteners, so there are no exposed screws to back out during wind events. On low-pitch sections common on 1950s-70s ranch designs, we specify the panel profile and sealant details that prevent water from wicking uphill during heavy winter rain. We work with IKO, Atlas, and Boral for metal and tile-compatible systems.
When Metal Makes Sense Over Asphalt
If your Tarzana home has a flat or very low-pitch section, metal gives you better water-shedding performance than shingles, which rely on gravity and overlap. Homeowners who plan to stay 20-plus years can justify the higher upfront cost, since metal typically outlasts two asphalt cycles. We’ll price both options for your specific roof so you can compare real numbers, not guesswork.
Trusted Brands We Service in Tarzana
We install and repair roofs using shingle and metal systems from GAF, CertainTeed, Owens Corning, IKO, Atlas, and Boral. For Tarzana customers, that means we can match existing materials on additions and repairs without waiting on obscure special orders. Our crews keep common profiles and colors moving through the greater Los Angeles supply chain, so a patchwork roof from a 1970s addition can be tied into a new GAF architectural shingle roof with the right step flashing and valley metal. You won’t hear us push one brand. We’ll show you what matches your roof’s pitch, exposure, and budget.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Installation Problems We See in Tarzana Homes
- Cracked, brittle wood shake from decades of UV exposure. Original shake roofs on 1950s-70s Tarzana homes turn fragile and split during Santa Ana gusts, sending debris across property lines and leaving bare spots where water gets in. A full tear-off and shingle or metal replacement is the real fix.
- Ponding water on low-pitch or flat sections. Many mid-century ranch designs in Tarzana include low-slope areas that hold water after winter rains because the original underlayment has broken down. We address these with proper tapered systems or metal panels rated for low slope.
- Patchwork re-roofs over additions and remodels. Homes expanded over the decades often have tile sections meeting old composition shingle, with valleys and penetrations that were never properly flashed. Those intersections leak repeatedly until someone details them correctly with step flashing and proper valley metal.
- Skip sheathing discovered at tear-off. Many original Tarzana homes have spaced board sheathing under wood shake. Current code requires solid decking before new roofing, so we write that re-deck allowance into the contract before demolition starts, which is not something every bid includes.
Pricing for Roof Installation in Tarzana, CA
Here’s what to expect for a full tear-off and replacement in Tarzana. A standard architectural shingle roof on a 2,000-square-foot ranch runs $14,000 to $22,000. Standing seam metal on the same home runs $28,000 to $45,000. The spread comes down to decking condition, roof pitch, number of valleys, and how much old material needs to be hauled away. If your home has original wood shake over skip sheathing, the required plywood re-deck adds roughly $2.50 to $4.00 per square foot, which is why some quotes vary by thousands for the same footprint. We provide a written line-item price before any work starts, including allowances for what the tear-off might expose. Call (341) 217-2677 for a free estimate – we’ll measure, inspect, and give you a number you can plan around.
We Also Serve Cities Near Tarzana
Our Roof Installation team works across the west San Fernando Valley. If you’re in Encino, Reseda, Woodland Hills, or Winnetka, you’ll get the same written pricing, the same photo-badged technicians, and the same 365-Day Done Right Promise. For full details on what we do across the area, see our Tarzana coverage page.
Serving Tarzana, CA - Our Local Coverage Area
We’re based in the Tarzana 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 Installation in Tarzana
Almost always. Most original Tarzana homes built between the 1950s and 1970s have skip sheathing under wood shake, which is spaced boards rather than solid decking. Current building code requires solid decking before new roofing goes on, so a full tear-off usually means installing plywood or OSB plus radiant barrier. That’s a required cost, and we include it as a written allowance in your quote before demolition starts, not as a surprise change order. Call (341) 217-2677 to have us inspect your specific roof.
Santa Ana wind gusts in Tarzana commonly exceed 50 mph, so we nail architectural shingles to a high-wind pattern, typically six nails per shingle, and confirm the nail placement matches the manufacturer’s wind warranty rating. Proper nailing matters more than shingle choice; a cheap install with four nails will fail in the first strong Santa Ana event. Our crews follow the exact GAF, CertainTeed, or Owens Corning wind spec for your roof’s exposure category.
The transition valley is where leaks start unless it’s flashed correctly. We install custom step flashing and proper valley metal at every tile-to-shingle transition, then seal and test the intersection before finishing. Many Tarzana ranch homes have this exact condition from 1980s and 1990s additions, and it’s one of the first places we inspect during a roof evaluation. It gets priced into the quote as a line item, not discovered later.
The difference usually comes down to what each bidder is assuming about decking, underlayment, and disposal. A quote that assumes your existing decking is reusable will look cheaper, but then the change order arrives when the tear-off exposes skip sheathing or rotted plywood. We price the re-deck as a written allowance from the start, so the number you sign is the number you can trust. If a quote looks very low, ask what decking condition it assumes.
Yes. Sloped sections can take architectural shingles, but flat or very low-pitch sections need materials rated for low-slope application, like standing seam metal panels or a tapered system that moves water off the roof. Tarzana’s mid-century ranch plans often include flat patio roofs or low-pitch entry overhangs that pond water after winter rains. We spec those areas separately and price them by square footage, so you’re not paying for shingles that will fail early.
If you’re considering a new roof on your Tarzana home, the next step is a free inspection and written estimate. Call (341) 217-2677 and ask for Grant Whitlock’s team. We’ll measure your roof, check what’s underneath, and give you a fixed written price before any work starts. Every installation includes the 365-Day Done Right Promise in writing. If it’s not right within a year, we make it right.
Written by Grant Whitlock, Owner at Mercer Roofing Co Woodland Hills.