Metal roofing
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GAF
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Installation Across Calabasas
Roof installation in Calabasas typically runs $18,000 to $45,000 for a full tile roof replacement, depending on decking condition, roof complexity, and the materials you choose. Most Calabasas homes need the work done right the first time because the city’s wildfire code requirements are strict, and a failed inspection means your move-in date slips. We know the difference between a roof that looks good from the street and one that passes the Mulholland Highway fire corridor requirements. Call (805) 309-3314 for a free estimate from a crew that has opened enough Calabasas roofs to know what’s underneath them.
Why Mercer Roofing Co Thousand Oaks Is Calabasas’s Preferred Roof Installation Company
Roof installation in Calabasas demands a level of care most companies don’t offer, and that starts before anyone steps onto your property. Every technician we send to a home in The Oaks, Calabasas Park, or along Mulholland Highway has a name and a face you’ll see before they arrive. You receive the technician’s name and photo ahead of the visit, and they badge in at your door with a photo ID. No stranger-at-the-door moment. It’s a simple thing that matters a lot when you’re home alone with kids or managing a property while you’re away.
Grant Whitlock leads our team, and he holds every job in Calabasas to the same written standard: a price on paper before work begins, a 365-Day Done Right Promise on every installation, and a written guarantee on every repair. We don’t hand you a verbal number and hope for the best. You get a written quote, a written guarantee, and a crew that shows up in clean, marked uniforms, background-checked and identity-verified under the Threshold Verified standard. That’s the Threshold Group framework, which every independently owned location is contractually held to since the company was founded in 2000.
We answer the phone with a live person, 24/7. Not a voicemail tree. Not a callback form. When you call about a roof installation in Calabasas, you talk to a human who can schedule your free estimate and answer questions about tile weights, underlayment, or what the city will require once the permit is pulled.
Styles & brands we work with
Tile Roof in Calabasas
Tile roof installation in Calabasas is the most common job we do because the city’s Mediterranean and Tuscan villa-style homes were built with clay and concrete tile from the 1980s onward, and those roofs are now reaching the end of their service life. A full tile roof replacement in Calabasas typically runs $22,000 to $45,000, with the final number driven heavily by what’s under the tile. That’s the part most quotes gloss over, and it’s the part that matters most here.
Decking and Underlayment Replacement
Many Calabasas tile roofs from the 1980s and 1990s sit on original wood shake underlayment or degraded skip sheathing that fails current ember intrusion tests. You can’t see it from the ground. We find it once the tile comes off. When we quote a tile roof in Calabasas, we walk the roof first, check the eaves, and write realistic allowances for decking replacement into the contract so the price doesn’t jump on you mid-job.
Class A Fire-Rated Assemblies
Homes along the Mulholland Highway corridor and in fire-prone hillside areas of Calabasas are generally required to meet Class A fire-rated assembly standards. That means the entire roof system, not just the tile on top, has to resist flame spread and ember intrusion. We install GAF Tiger Paw underlayment and manufacturer-recognized tile from Boral, CertainTeed, and Atlas that meet those standards. The tile matters, but the underlayment beneath it is what actually stops an ember from reaching your decking during Santa Ana wind events.
Roof Ventilation in Calabasas
Roof ventilation in Calabasas has to work harder than in most Southern California cities because the hot-summer Mediterranean climate bakes attics for months, and the dry Santa Ana winds in fall put a different kind of pressure on ridge vents and eave gaps. A properly vented Calabasas roof keeps attic temperatures down in July and August, which protects your underlayment from premature UV and heat degradation. Ventilation work on a tile roof in Calabasas typically adds $1,500 to $4,000 to a roof installation, depending on the ridge configuration and whether we’re correcting existing eave gaps.
Ridge Vent Configuration for Santa Ana Wind
Calabasas homes with clay tile roofs and west-facing or ridgeline exposure need a ridge vent system that exhausts hot air without letting wind-driven embers in during October and November. We spec vented ridge caps with ember-resistant screening and ensure the eave-to-ridge airflow ratio is right for the roof’s square footage. Open eave gaps along the Santa Ana-facing slope are one of the most common defects we correct on older Calabasas homes.
Flat Roof Transitions on Contemporary Homes
Many newer Calabasas homes in gated communities like The Oaks mix tile with flat sections on contemporary designs. The transition point where tile meets flat membrane is where leaks start, especially after the first heavy winter rain. We inspect those transitions during every roof installation in Calabasas and replace thin original flashing with heavier-gauge metal properly overlapped into the underlayment.
Trusted Brands We Service in Calabasas
We install and repair roofs using manufacturer-recognized shingle and tile brands including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Calabasas tile homes, we frequently recommend Boral steel-look tile for its balance of weight, fire rating, and aesthetic match to the city’s Mediterranean architecture. CertainTeed and Atlas also make excellent Class A underlayment and tile products we stock for Calabasas jobs. Because we work these brands regularly on Calabasas roofs, we can get materials fast, and our crews know the installation requirements for each one without learning on your roof. Every tile, membrane, and flash line gets a written guarantee, backed by the 365-Day Done Right Promise.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Installation Problems We See in Calabasas Homes
- Original 1980s wood shake underlayment under tile. Many Calabasas tile roofs were installed over the original wood shake or skip sheathing, which dries out over decades and fails ember intrusion tests. The city’s permit inspection often requires full decking replacement once the tile comes off, so we budget for it upfront.
- Undersized 2×4 decking that sags under tile weight. Some 1980s Calabasas homes were framed with 2×4 decking that wasn’t designed for the weight of modern clay tile. We find cracked ceilings below those roofs, and the fix is structural before it’s cosmetic.
- Open eave gaps along Santa Ana-facing slopes. Wind-driven embers enter through gaps at the eaves and ignite old skip sheathing. We seal and screen those gaps during roof installation in Calabasas, especially on the west and north-facing ridgelines.
- Thin original flashing at tile-to-flat-roof transitions. The original copper flashing on many Calabasas homes was paper-thin and never properly overlapped into the underlayment. The first heavy rain after a dry season leaks through those transitions, and repair means pulling tile, not patching over it.
Pricing for Roof Installation in Calabasas, CA
A full tile roof installation in Calabasas runs $22,000 to $45,000 on a typical 3,000 to 4,000 square foot home. Decking replacement, if needed, adds $3,500 to $9,000 depending on how much of the old shake or skip sheathing has to come out. Roof ventilation work adds $1,500 to $4,000. The single biggest cost variable in Calabasas is what the permit inspection reveals once the tile is off – which is exactly why we inspect first and write allowances into your contract. You’ll never get a change-order surprise from us. Call (805) 309-3314 for a free estimate and a written line-item quote before any work begins.
We Also Serve Cities Near Calabasas
Mercer Roofing handles roof installation for homeowners in West Hills, Topanga, Canoga Park, and Agoura Hills as well. If you’re in one of those communities, you’ll get the same written pricing, the same background-checked crew, and the same Roof Installation standards we bring to every Calabasas job. Our Calabasas team knows the fire corridor requirements throughout this part of Los Angeles County.
Serving Calabasas, CA - Our Local Coverage Area
We’re based in the Calabasas 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 Calabasas
You need to remove the old underlayment when it’s original wood shake, degraded skip sheathing, or any material that fails current ember intrusion standards. Installing new tile over failed underlayment leaves your home vulnerable during Santa Ana wind events, and the city’s permit inspection will likely flag it anyway. We inspect first and tell you exactly what has to come out before we write your quote. Call (805) 309-3314 for a free roof inspection in Calabasas.
Calabasas sits in a wildfire hazard zone, and the current code requires the entire roof assembly, including the deck, to meet Class A fire-rated standards. If the original decking is wood shake or undersized 2×4 that can’t support the new tile weight, the permit inspection mandates replacement before sign-off. We’ve seen this enough in The Oaks and along Mulholland Highway that we write the allowance into your contract from day one.
We lay ground tarps along eave lines, use magnetic sweepers after tear-off, and flush gutters before final walkthrough. On tile tear-offs in Calabasas, broken tile fragments are the biggest gutter threat, so we bag and lower debris rather than throwing it off the roof. Your gutters get checked and cleaned before we call the job done, and that’s included in the written price.
The best configuration is a vented ridge cap with ember-resistant screening, sized to the roof’s square footage and paired with properly sealed eaves. On Calabasas homes with west-facing or ridgeline exposure, we also verify the attic intake-to-exhaust ratio matches code so the system actually breathes instead of pulling embers into the attic during wind events. We’ll spec this for your specific roof during the free estimate.
Yes, with adjustments. We don’t tear off tile on days when sustained winds would send debris across your neighbor’s property or create an ember hazard on exposed skip sheathing. We schedule around high-wind forecasts, protect torn-off sections overnight, and keep all materials secured. Your installation timeline in Calabasas gets built around the wind, not against it. Call (805) 309-3314 to talk through timing for your project.
If you’re considering a roof installation in Calabasas, start with an inspection that tells you what’s actually under your tile. We’ll walk the roof, check the eaves and the decking, and give you a written price that accounts for what the city will require before the first tile comes off. Call (805) 309-3314 today or any time, a live person answers 24/7, to schedule your free estimate.
Written by Grant Whitlock, Owner at Mercer Roofing Co Thousand Oaks, serving Calabasas and surrounding communities since 2000.