Roof Replacement in Los Angeles, CA
Roof replacement in Los Angeles, CA means stripping off the old covering, then checking the deck and installing a new roof from the underlayment up. The choice of shingle, tile, metal or a flat membrane sets the price and the life of the roof, and each has its own page on this site. A roofer measures the roof, writes one figure and explains the permit before work is booked.
When a roof needs replacing and not repairing
A roof is a replacement candidate at about 20 years for 3-tab shingles and about 30 for architectural shingles, per the InterNACHI figures that This Old House republished in April 2026. Widespread cracking, curled shingles, granules in the gutters and leaks in several rooms point the same way. One failed area on a younger roof is still a repair.
What goes into a Los Angeles roof replacement
The crew removes the old covering, repairs rotted decking, lays new underlayment and flashing, then installs the new roof and cleans up. In the City of Los Angeles a residential replacement over half the roof area needs a roof covering rated by the Cool Roof Rating Council, and a house in a Very High Fire Hazard Severity Zone needs Class A [LADBS bulletin IB P/GI 2020-003; LA County Public Works notes]. The estimate states which applies.
What a new roof costs
HomeAdvisor's 2024 page puts a typical asphalt shingle replacement between $6,119 and $13,804, or $4 to $12 a square foot installed. Tile and metal cost more. The roof replacement cost guide breaks the figure down by material, and the written estimate gives the real number for the house.
Choosing the new roof
Shingle is the common choice and the shortest life. Tile suits the Spanish and Mediterranean houses across Los Angeles, and metal has the longest life of the options a homeowner can buy. Each material page covers what suits which house, and the metal vs shingle roof guide compares the two on cost and age.
Roof replacement questions, answered
How long does a roof replacement take?
A typical house is a few working days from tear-off to cleanup, weather permitting. Tile and complex roofs take longer, and the estimate gives the expected time.
Do I need a permit to replace my roof in Los Angeles?
The City of Los Angeles lists residential re-roofs as an express permit item. The roofer files it, and the estimate names the cool roof or fire rating the job needs.
How much does a new roof cost?
HomeAdvisor's 2024 typical range for asphalt shingles is $6,119 to $13,804. Tile and metal run higher, and the written estimate sets the real figure.
Can a new roof go over the old one?
In some cases a lighter covering can go over existing solid sheathing. LADBS lists that as an express permit item, and the roofer tells the owner whether the old roof is a candidate.