Roofing Service in Los Angeles
Alpha & Omega Roofing has been working on Los Angeles roofs since 1960. We are locally owned and locally operated, licensed, bonded, and insured, and we hold current manufacturer certifications for steep-slope shingle and tile as well as single-ply commercial systems. The roofs here run from 1920s bungalows with skip sheathing to flat membrane over mixed-use buildings, and the estimate you get starts with what is actually on your building rather than an average. We also serve nearby Glendale and Pasadena.
Professional Roofing Solutions
Re-Roofing in Los Angeles, CA
Ordering a full roof replacement in Los Angeles means committing to a product before the permit is pulled, because the energy rules attach to the material. We tear off to the deck, replace sheathing that has gone soft, and rebuild the underlayment, flashing, and edge metal before the covering goes back on. On older houses framed for wood shake, the skip sheathing has to be decked solid first, and we price that up front rather than discovering it on day two.
Roof Repairs in Los Angeles, CA
Leaks in Los Angeles concentrate at the details. What we find is usually failed wall flashing, a cracked plumbing vent boot, an abandoned swamp cooler curb, a chimney counterflashing that has separated, or a tile ridge whose mortar gave up in the heat. Our roofers trace the water to its entry point instead of sealing the ceiling stain, because on a low-slope roof water can travel a long way before it shows inside. Repairs use material matched to your existing roof, and on a membrane roof we patch with the manufacturer system so any remaining warranty is left intact.
Roof Maintenance in Los Angeles, CA
A roof in Los Angeles spends most of the year drying out and then takes a winter of rain in a handful of weeks. That pattern splits sealant, opens laps, and fills drains with whatever the summer left behind. Our annual maintenance agreements schedule the visit before the rain rather than after the leak, clear the drainage, renew the sealants, and reseat the pieces that have shifted.
Roof Inspections in Los Angeles, CA
An inspection gives you a documented condition report on your roof rather than an opinion. We photograph the covering, the flashing, the penetrations, and the drainage, and we write down which items need work now and which have service life left. Insurers, lenders, and buyers in Los Angeles all ask for that documentation, and property managers use it to plan a replacement budget across several buildings. If the roof is sound, the report says so and gives you a horizon to budget against.
License and Manufacturer Certifications
Alpha & Omega Roofing, Inc. holds California contractor license #C39-857106. We hold current manufacturer certifications with GAF, Malarkey, Owens Corning, CertainTeed, Versico, FiberTite, and DOW, covering steep-slope shingle and tile work as well as single-ply commercial systems. Those certifications let us register manufacturer-backed warranties of up to 20 years on material and workmanship. We carry workers’ compensation and liability insurance, and our customer reviews are published on the site.
We specify cool-roof rated products that meet the Title 24 aged solar reflectance and thermal emittance values, from the manufacturer lines we are certified to install.
What Los Angeles Homeowners Should Know Before a Reroof
Los Angeles permits go through the Department of Building and Safety, and a roof replacement is permitted work. LADBS runs Development Services Centers across the city, and the flagship counter is Metro, at 201 and 221 N. Figueroa St. in downtown Los Angeles. In-person service is by appointment, and the permit has to be issued before the tear-off starts rather than added afterward.
The rule that catches homeowners is the cool-roof requirement in the Los Angeles Green Building Code. LADBS states that roof replacements of any value are subject to LAGBC Section 4.106.5 for residential projects or Section 5.106.13 for nonresidential projects. There is no dollar threshold to fall under, so a modest reroof is covered the same as a large one. Because solar reflectance and thermal emittance are properties of the roofing product, the requirement has to be settled while you are choosing the material, not at the inspection.
The housing stock is old across most of the city. Census figures for 2020–2024 give a median year built of 1965, with 19.1 percent of units dating from 1939 or earlier, 16.0 percent from the 1950s, and 69.9 percent standing before 1980. On a house from that period the decking and the vent detailing frequently set the scope of a reroof before anyone discusses the covering.
Los Angeles does not sit in a single climate zone. The California Energy Commission ZIP code table puts most of the city in California Building Climate Zone 9, including 90012 downtown and 91406 in the central San Fernando Valley. Coastal and harbor ZIP codes are Zone 6, among them 90291, 90045, and 90731. A block of South Los Angeles ZIP codes including 90011 and 90044 is Zone 8. The Sunland and Tujunga ZIP codes, 91040 and 91042, are Zone 16. Which cool-roof values apply to your roof depends on which of those your address falls in, so the ZIP code gets settled before the product is specified.
Residential Roofing Services
Trusted Across Southern California Since 1960
Alpha & Omega has roofed houses throughout Los Angeles, and we have held contracts with large organizations elsewhere in Southern California. Those jobs draw on the same crews and the same certified product lines that go on a single-family house. Scale changes the schedule and the equipment on site. Serving homeowners and local businesses across this region is what the company has been doing since 1960.
We’ve earned the business of:
Azusa Pacific University
Mt. San Antonio College
Property Management Services
Jet Propulsion Laboratory
And More!
Roofing Options for Every Style & Budget
Shingles
Dimensional Shingles
Dimensional shingles are laminated in layers, giving the roof depth and shadow instead of a flat plane. That texture suits the steeper pitches on older Los Angeles houses and hides small waves in a deck that has been around for eighty years. They are heavier than three-tab and carry longer manufacturer coverage.
Fiberglass Shingles
Fiberglass shingles are built on a glass mat rather than organic felt, which keeps them light and improves the fire rating. They stay flat through a long hot summer because there is no felt to take on moisture and curl. For most Los Angeles houses they are the sensible balance of price and service life.
Asphalt Shingles
Asphalt shingles cover more of this city than any other material. They are affordable and quick to install, and a roof nailed to the manufacturer schedule with the correct starter and ridge will run for decades. Cool-roof rated asphalt products are widely available, which matters given the requirement attached to replacements here.
Tile
Concrete Tiles
Concrete tile is dense and wind-resistant, and it comes in flat, medium, and high-barrel profiles to match almost any Los Angeles street. Individual tiles are replaceable, so storm damage stays a repair. The framing has to carry the weight, and that gets verified before we quote a change from composition.
Lightweight Tiles
Lightweight tile gives you the tile profile without the structural load, which is what makes tile workable on many residential roofs framed for composition. From the street it reads as traditional tile. The lower weight also speeds the install, and that shows up in the labor line.
Clay Tiles
Clay tile carries its color through the body of the tile, so it does not weather to a different shade the way a coated product can. On the Spanish and Mission houses that define whole Los Angeles neighborhoods it is the covering the design assumes. Installed over the correct underlayment, it outlasts almost everything else we put on a house.
Reach out to Alpha & Omega Roofing at (562) 693-4532 or 1-888-847-ROOF today to schedule your roofing service or learn more about how we can protect your home or business.
