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 Roofing Company Across Tarzana
Finding a roofing company in Tarzana that shows up on time, bids honestly, and leaves your home cleaner than they found it shouldn’t feel like a gamble. But after 25 years of working on San Fernando Valley roofs, we know the bar is lower than it should be. Mercer Roofing Co Woodland Hills changed that. We send every technician’s name and photo before they arrive. They badge in with photo ID at your door. And every price, every guarantee, is in writing before a single nail goes down. That’s how a roofing company should operate. If your Tarzana roof needs a repair, a full replacement, or just a straight answer, call (341) 217-2677. A real person answers, 24/7.
Why Mercer Roofing Co Woodland Hills Is Tarzana’s Preferred Roofing Company
Tarzana homeowners call us because we’re blunt about what their roofs actually need, and we prove it before anyone climbs a ladder. Founded in 2000 and part of the Threshold Group family, every Mercer location is independently owned and operated and held to the Threshold Verified standard. That means background-checked, identity-verified technicians in clean, marked uniforms. It means a photo ID badge at the door. And it means a written price before work starts, every time.
Our Roofing Company team has spent years on Tarzana’s mid-century ranch roofs. We know how the Santa Anas tear at loose flashing off Vanalden Avenue. We know how the afternoon sun bakes composition shingles brittle south of Burbank Boulevard. And we know the neighborhood’s older homes often hide skip sheathing under original wood shake, which changes the entire scope of a re-roof, and the price. We tell you that before you sign. Not after the tear-off. Reviews from Tarzana customers consistently mention the same three things: the technician’s photo arrived before the visit, the price on the estimate matched the invoice, and the crew left the yard spotless.
Response time to Tarzana runs tight. We dispatch from the Los Angeles office with crews that live and work in the west Valley. You’re not waiting on someone fighting their way over from Pasadena. Most Tarzana appointments get scheduled within a few business days, and if you’ve got active leaking during a winter storm, the call is answered by a live person who can get a technician to your side of the 101 quickly.
Styles & brands we work with






Roof Inspection in Tarzana
Roof Inspection in Tarzana is the single smartest thing a homeowner can do before making a repair or replacement decision, because what you can’t see is usually where the problem starts. A thorough inspection walks every plane of the roof, checks flashing at chimneys and skylights, examines valley intersections where decades of remodels create odd angles, and documents granule loss on shingles and hairline cracks in shakes. In Tarzana, a roof inspection typically runs $195 – $395, and if the inspection turns up repair work you hire us for, we credit the inspection fee toward the job.
What the Walk Actually Covers
We inspect from the roof surface and the attic. Missing granules are noted. Brittle, curled shakes are noted. We check for soft decking by walking every major slope where it’s safe to do so. And we open the attic to look for water staining on the sheathing, which often tells us more about a roof’s history than the surface ever will.
Radiant Barrier & Code Compliance Check
When your home was built, the code didn’t require the decking standards California enforces today. If you have skip sheathing under old wood shake, an inspection flags it early, so you’re not surprised mid-tear-off with the cost of new plywood and a radiant barrier. You’ll know before the first sheet is ordered.
Commercial Roofing in Tarzana
Commercial Roofing in Tarzana covers the low-slope and flat roof systems on the offices, medical buildings, and retail strips that line Ventura Boulevard and the blocks around Reseda Boulevard. The challenges are different from residential work: more foot traffic, HVAC units scattered across the roof, parapet walls that channel water unpredictably, and nighttime or weekend scheduling pressure to avoid disrupting business. Commercial roof repairs in Tarzana typically run $850 – $2,500 for a targeted leak response, while full commercial re-roofs on flat systems are priced by the square foot and the number of roof penetrations, with most Tarzana buildings landing in the $9 – $16 per square foot range depending on insulation requirements and membrane choice.
Flat Roof Maintenance Programs
Flat roofs do not fail suddenly; they fail slowly. Seams open. Ponding water eats at the membrane. Gravel wears thin. A twice-yearly maintenance visit catches these issues at the repair stage, when the cost is measured in hundreds, not tens of thousands.
Coordinated Scheduling for Occupied Buildings
We work around medical office hours and store opening times in Tarzana. Loud tear-off work happens early or on weekends. Deliveries of long-lead materials get staged so your loading dock or parking lot isn’t blocked. The schedule is set in writing, and the price is fixed before we order anything.
Trusted Brands We Service in Tarzana
Tarzana homeowners ask us to work on Owens Corning, IKO, and Atlas roofs more than any other brands. We stock matching components locally for all three, and we maintain strong relationships with their distribution yards in the Valley, which means repair materials arrive fast, not “sometime next week.” Whether your roof is a newer Atlas architectural shingle or an IKO overlay from the late 1990s, we match the product correctly and nail it to the manufacturer’s wind-rating spec. A mismatched shingle on a Tarzana roof is a leak waiting for the first heavy winter rain.
See the difference
Before
After
Before
After
Before
AfterCommon Roofing Company Problems We See in Tarzana Homes
- Skip sheathing under original wood shake. Many Tarzana ranch homes built in the 1950s and 1960s have spaced boards, not solid plywood, beneath the shakes. A tear-off exposes this immediately, and code requires new solid decking before any new roof goes down.
- Complex intersections from decades of remodels. A 1962 ranch expanded in 1987, then again in 2005, has roof lines meeting at odd valleys. Flashing at these intersections was often never done correctly, and that’s where Tarzana leaks begin.
- Santa Ana wind uplift around eaves and rakes. The same gusts that shake the sycamores on Tarzana’s hillsides also pull at shingle edges. If the original nailing pattern wasn’t upgraded for wind uplift, shingles lift like pages and the manufacturer’s wind warranty is void.
- UV-degraded composition shingles on south-facing slopes. The unshaded slope facing the sun bakes all day, every day, for eight months straight. Granules lose adhesion, the shingle gets brittle, and nails begin to back out. It looks fine from the street until it isn’t.
Pricing for Roofing Company in Tarzana, CA
Roof repairs on Tarzana homes typically run $450 – $1,900, depending on whether we’re replacing a few shingles, rebuilding flashing, or repairing decking beneath a leak. Full roof replacements on the area’s ranch homes land between $14,000 and $28,000, with the higher end driven by tile or metal, complex roof geometry, and the need for new decking over skip sheathing. The honest variable in Tarzana is not labor. It’s material lead times and the condition of what’s under the existing roof. That’s why we put everything in writing before any materials are ordered. Call (341) 217-2677 for a free estimate with exact numbers for your street, your roof, and your home.
We Also Serve Cities Near Tarzana
Mercer Roofing Co Woodland Hills handles the same detailed work in Tarzana and the surrounding west Valley. If you’re in Encino, Reseda, Woodland Hills, or Winnetka, our crews know your streets and your housing stock just as well. Call the same number for any of them: (341) 217-2677.
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 Roofing Company in Tarzana
Because Tarzana has older housing stock with skip sheathing under original wood shake, and Woodland Hills has a larger share of newer construction with solid decking. A Tarzana tear-off frequently requires new plywood and a radiant barrier to meet current code, which can add $3,000 – $6,000 to a typical ranch home. Any quote that doesn’t account for this will either surprise you mid-project or skip the decking entirely, which is a code violation and a future leak. Call (341) 217-2677 and we’ll inspect before we quote, so the number is real.
Manufacturers rate their shingles for wind uplift, and the rating only holds if the nail count and placement match the spec for high-wind zones. Most Tarzana homes need six nails per shingle, not the four used in standard applications. On a sprawling ranch off Vanalden Avenue, our crew pulled back brittle wood shakes and installed GAF architectural shingles with a 130-mph wind-rated nailing pattern specifically to handle those Santa Ana gusts. If a contractor nails your roof like it’s in a calm climate, the manufacturer’s wind warranty is void.
Yes, and it’s common in Tarzana, where postwar homes were expanded with tile or metal sections added decades later. Mercer crews work all of those materials. The important part is the intersections: where shake meets tile, where the shed roof ties into the main gable, where the chimney flashing was reused during the remodel. Those are the leak points, and we detail them properly rather than patching over them.
Most Tarzana leak repairs are completed within five to seven business days of the inspection, and if the leak is active and water is coming into living space, a live person answers the phone 24/7 and we can often speed that up. We stock common Owens Corning, IKO, and Atlas materials locally in the Valley, so we’re not waiting on shipped components. Call (341) 217-2677 to get on the schedule before the next front moves through.
If the tear-off exposes skip sheathing, California building code requires solid decking, and a radiant barrier is one of the smartest decking upgrades you can make while the roof is open. In Tarzana’s summer heat, a radiant barrier reflects radiant heat away from the attic, which can cut attic temperatures by up to 30 degrees. That’s real money off your cooling bill. It adds roughly $1,500 – $2,500 to a typical ranch home, but you only pay for the material, since the labor is already happening.
Written by Grant Whitlock, Owner at Mercer Roofing Co Woodland Hills, serving Tarzana and the west San Fernando Valley. Founded in 2000 and part of the Threshold Group family.
Ready for a straight answer about your Tarzana roof? Call (341) 217-2677 to schedule your free estimate. A real person answers, every time.