Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Installation Across Los Angeles
A full roof installation in Los Angeles runs $11,500 to $34,000 for a typical 1,500 – 2,200 sq ft home, with the spread driven by material class, slope, and whether the property sits inside a CAL FIRE Very High Fire Hazard Severity Zone requiring a Class A assembly. We know that range isn’t a number you can budget around without detail, which is why every Mercer Roofing project starts with a written line-item price before we touch anything. Call (743) 200-8347 to schedule a free estimate from our local Los Angeles office. You’ll get the name and photo of the technician before they arrive, so you know exactly who’s at your door.
Why Mercer Roofing Is Los Angeles’s Preferred Roof Installation Company
Homeowners in Los Angeles keep calling us because we hand them certainty in writing and never ask them to open the door to a stranger. Every Mercer technician is background-checked, identity-verified, and badged, then dispatched under the Threshold Standard, a quality framework our independently owned Los Angeles office is contractually held to. Before any visit, you receive the crew member’s name and photo. At the door, they present photo ID before a boot sets foot inside. That matters in a city like Los Angeles, where homeowners in Echo Park, Silver Lake, and the Valley often live alone, work from home, or have children asleep in the next room when the roofer knocks.
Our Los Angeles customers also get a 365-Day Done Right Promise on every job. If the work isn’t right within a year, we make it right, backed by a written guarantee included with every installation. No follow-up phone calls chasing a dispatcher. No “we’ll get back to you.” A live person in our Los Angeles office answers the phone 24/7, and the guarantee is honored with the same attention as the original contract. Founded in 2000 as part of the Threshold Group family, Mercer Roofing built its Los Angeles reputation on roofs and trust, one street at a time.
Grant Whitlock leads the Los Angeles operation with a straightforward rule: every price, every scope change, and every guarantee goes in writing before work starts. That rule isn’t marketing language. It’s the difference between a driveway a crew shows up at and a driveway a homeowner lets a crew onto.
Tile Roof in Los Angeles
Tile Roof installation in Los Angeles means matching the material that already defines huge portions of our prewar housing stock, particularly the 1920s – 30s Spanish Colonial Revival and Craftsman bungalows from Highland Park to West Adams, many still carrying original clay or concrete tile. A full tile roof installation in Los Angeles runs $18,000 to $34,000, reflecting material weight, the need for re-flashing almost every penetration, and the frequent structural reinforcement older rafters require before tile goes down. We work with GAF, CertainTeed, and Owens Corning tile profiles, but the heavy lifting on a Los Angeles tile job is what sits underneath.
What Tile Jobs Expose Here
The tile itself often looks fine. What fails first on a 1930s Los Angeles tile roof is the underlayment beneath it, especially after decades of UV and the city’s episodic atmospheric river storms. When we pull tile on a hillside home in Los Feliz or Silver Lake, we’re not surprised to find original waterproofing that predates modern code and has turned brittle under years of direct sun. The tile was never the protective layer. The material under it always is.
Fire Zone Requirements
A tile roof in the Hollywood Hills, Bel Air, Laurel Canyon, Topanga, or the Pacific Palisades foothills sits inside a CAL FIRE Very High Fire Hazard Severity Zone, and LADBS requires a Class A fire-rated assembly before a permit closes. That changes the scope of a straightforward tile swap: underlayment, penetration details, and venting all come under review. We spec the full Class A assembly before we open the roof, so the first LADBS inspection passes instead of stalling the job for weeks.
Roof Ventilation in Los Angeles
Roof Ventilation in Los Angeles is the difference between a roof that lasts 20 years and one that cooks itself to death in 12. Our year-round sun heats attic spaces to the point that inadequate ridge and soffit venting accelerates shingle degradation, warps decking, and drives your cooling bill through August. A full roof ventilation installation in Los Angeles runs $1,400 to $4,800, depending on roof geometry, existing vent inventory, and whether the home has the low-slope or flat-roof profile common in mid-century construction.
Ventilation Upgrades During Re-Roof
The smart time to address ventilation on a Los Angeles home is while the roof is already open. Adding ridge vents, baffles, and proper intake to a 1950s – 70s mid-century home in Sherman Oaks or Encino prevents the heat-soak problem before new materials go down. Santa Ana winds also turn embers into a real hazard, and ember-resistant soffit and ridge detailing is now part of the Class A assembly conversation on hillside re-roofs.
What We Inspect First
Before quoting a ventilation job, our Los Angeles crew walks the attic and checks soffit depth, rafter layout, and whether original vents were painted over or blocked by decades of accumulated debris. Half the homes we see in Los Angeles have less than half the ventilation they should. Fixing that is usually cheaper than homeowners expect, and we write the exact price before work begins.
Trusted Brands We Service in Los Angeles
Mercer Roofing installs and repairs roofs using manufacturer-recognized shingle and tile brands including GAF, CertainTeed, and Owens Corning. We stock the common profiles and flashing components for those systems locally, which means a Los Angeles customer isn’t waiting on a parts shipment from a distribution yard in Fontana when a repair is scheduled. Call (743) 200-8347 and we’ll tell you the brand and material specification that fits your roof in plain English, along with the written number. No one at Mercer sells a brand because a supplier offered a bonus. We spec what the structure, slope, and your insurance requirements call for.
Common Roof Installation Problems We See in Los Angeles Homes
- Very High Fire Hazard Severity Zone surprises: A homeowner in the Hollywood Hills or Bel Air calls for a shingle re-roof, and the LADBS VHFHSZ designation triggers a full Class A assembly review that expands the permit scope to include fire-rated underlayment and reworked penetrations. We flag this upfront, price it in writing, and the job doesn’t stall.
- Hidden conditions in prewar and mid-century framing: Los Angeles stock from the 1920s and 1930s, along with 1950s – 70s flat-roof and low-slope homes, hides original framing, failed underlayment, and outdated penetrations that only reveal themselves when the roof is opened. We build allowances into the contract and get written approval on any change before touching it.
- UV acceleration on asphalt shingles: The city’s year-round sun degrades asphalt shingle granules faster than manufacturer ratings assume, so a 25-year shingle on a South LA or Valley home often looks 15 years old by year 10. Material choice matters more here than in coastal cities with cloud cover.
- Atmospheric river storm damage after dry spells: Los Angeles roofs often sit bone-dry for six months, then absorb several inches of rain in one storm event. Dormant flashing and underlayment failures turn into interior flooding overnight because they were never exposed before. Our inspection process hunts for those latent failures before they flood a ceiling.
Pricing for Roof Installation in Los Angeles, CA
A new architectural asphalt shingle roof on a Los Angeles home starts around $11,500 and runs to $22,000 for a standard 1,700 sq ft ranch or two-story. Concrete or clay tile runs $18,000 to $34,000. Flat or low-slope systems common in Silver Lake, Los Feliz, and the Hollywood Hills using TPO or modified bitumen run $14,000 to $26,000. The permit and VHFHSZ Class A assembly review adds $1,800 to $4,500 when triggered. Every Mercer price is written before work starts, and any change that emerges after the roof is opened gets priced as a written change order for your approval. Call (743) 200-8347 for a free estimate, and we’ll put the real number in writing.
We Also Serve Cities Near Los Angeles
Beyond Los Angeles proper, our crews regularly work in Huntington Park, South Gate, Bell, and Maywood. If you’re searching for Roof Installation in Los Angeles but live in one of those neighboring communities, the same Mercer standards apply: written pricing, badged technicians, and a live person on the phone.
Serving Los Angeles, CA - Our Local Coverage Area
We’re based in the Los Angeles 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 Los Angeles
Yes. Nearly every permitted roof installation in the Hollywood Hills, Pacific Palisades, Bel Air, Laurel Canyon, Topanga, and the northern foothills sits inside a CAL FIRE Very High Fire Hazard Severity Zone, and LADBS requires a Class A fire-rated assembly review before closing the permit. That means your underlayment, ridge venting, and penetration details must meet the fire-zone spec, not just standard code. We write the full scope in writing before the roof comes off. Call (743) 200-8347 to get a quote that accounts for the VHFHSZ requirement from day one.
We almost always find brittle or failed original underlayment, dry rot around penetrations, and framing that predates modern load standards. On a 1962 low-slope mid-century home in Silver Lake, our crew pulled the original built-up membrane and found saturated underlayment and soft decking around two penetrations. We documented it, wrote a change order with the price, and waited for approval before proceeding. That’s how every Mercer job works.
Any additional work found after the roof is opened gets documented with photos, priced as a written change order, and approved by you before we touch it. No one at Mercer Roofing changes a contract number without your signature. Our Roof Installation team doesn’t run a job by squeezing change orders; we write allowances into the original estimate for predictable unknowns on older Los Angeles homes.
Flat and low-slope roofs can’t shed water the way a pitched tile roof does, so they need built-up, TPO, or modified bitumen membrane systems that seal as a continuous membrane. The mid-century homes in Silver Lake, Los Feliz, and the Hollywood Hills often carry original low-slope designs that were never meant for tile. Installing tile on them would trap water and void every material warranty.
Atmospheric river storms can dump inches of rain on a roof that sat bone-dry for six months, so we schedule tear-offs around forecast windows and choose materials that handle UV in the dry season and sudden saturation in the wet one. Underlayment selection, ridge vent detailing, and flashing material all change based on which Los Angeles microclimate your home sits in. Call (743) 200-8347 for an exact quote, and estimates are free.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Los Angeles since 2000.