New Roof Installation in Los Angeles, CA

If you are comparing a roofing contractor in Los Angeles for new roof installation, start with what kind of job it is. A tear-off on a 1960s house, a roof for a backyard ADU and a first covering on a new build share materials, but the sequence, the permit path and the pitfalls differ.

What does a new roof installation in Los Angeles include?

A full installation is more than shingles on a deck. It starts when the old roof comes off or, on new construction, when the framer hands over a bare deck, and it ends when the last nail is swept off the driveway. Every quote should say which of these lines it contains, because a price that skips one is not a lower price for the same job.

• Tear-off or deck prep: old layers removed and the layer count stated, or a new deck inspected
• Decking repair: soft or damaged boards priced per sheet before they are replaced
• Underlayment and drip edge: the water barrier and the metal along the eaves and rakes
• Flashing: walls, chimneys, skylights, vents and valleys, each detailed
• The covering and ridge: the chosen material, ridge cap and ridge or attic vents
• Cleanup and close-out: debris hauled, nails swept and the inspection or paperwork finished

Anything outside that list, such as gutters, fascia or solar detach and reset, should appear as its own line.

When does a Los Angeles property need a new roof installation?

Four situations account for most calls:

• A worn-out roof: shingles at or past rated life, repeated leaks or failing decking. See roof replacement.
• An addition: new rooms or a raised roofline that must be tied into the old one.
• An ADU or guest house: a detached unit that needs its own covering.
• New construction: a framed building with no roofing at all.

For a roof with life left, roof repair may do. Our roof inspection service helps you find out before you spend.

Which roofing material fits a new roof in Los Angeles?

Material choice affects weight, fire rating, heat and price for decades. These are the four we explain most.

One reviewer says we talked through standing seam against asphalt shingle. Read more on asphalt shingle roofing, tile roofing and standing seam metal roofing.

Sizing, slope and detail decisions before we order

Good installation is mostly decided on the ground. The pitch sets which coverings are allowed and how water behaves. The deck, whether plywood or old spaced boards, sets how fasteners hold. Underlayment, drip edge and flashing at walls, chimneys and skylights decide whether the roof stays dry in a hard storm.

We also check the attic. Poor ventilation cooks shingles from below, and one reviewer describes a poorly placed vent found during a job. Ridge vents, intake at the eaves and the number of penetrations all get planned now, so nothing is cut in later.

ADU roof installation and new construction roofing

An ADU roof has to work with the main house, the lot and the permit set for the unit. Many have low pitches, so the covering may differ from the house roof even when they sit a few feet apart. On new construction, the framer, the roofer and the building inspector all need to agree on the deck before covering goes on.

Bring us your plans and we will tell you what each covering would require, from the deck up. If an ADU is in your future, read roofing an ADU in Los Angeles.

How a new roof installation goes, step by step

1. Site visit. We photograph and measure the roof or review your plans.
2. Choices. You see samples and trade-offs, and settle on material and color.
3. Written price. It lists covering, underlayment, flashing, decking allowance and cleanup.
4. Permit and ordering. The contract should name who pulls the permit before materials are ordered.
5. Install. Old roofing comes off, the deck is checked and the new roof goes on in sections, each one dried in.
6. Final sweep. Daily cleanup, a pass with a magnetic roller for nails and a closing walk with you.

What affects new roof cost in Los Angeles?

Angi's Los Angeles figures for a replacement run roughly $4 to $12 per square foot, averaging about $8.60 (accessed November 2026). At that average, a typical 1,700 square foot home lands near $17,200. A new ADU roof is smaller, so the total is lower, though small roofs often cost more per foot.

The bigger levers are material, pitch, roof shape and the work hidden under the old roof. Skylights, chimneys and valleys add flashing. Steep or tall roofs slow work down. Removing a second layer, or replacing wet decking, adds both labor and material. Our written price follows a look at the site.

Warranties belong in the price talk. Ask what the manufacturer covers, what the installer covers, how long and whether either needs to be registered. Get terms on paper, and read the exclusions.

Permits, layers and cool roof rules for a new roof

A new roof generally needs a permit or, for eligible single-family homes in the City of Los Angeles, a certificate of compliance. Other cities and unincorporated areas have their own offices. Our page on roof permits lists who handles what.

California's residential code does not allow a new roof over one with two applications already. Replacements covering more than half the roof must use a cool-roof-rated product, with rules that depend on slope and climate zone, so look up your zone on the California Energy Commission site. Homes in fire hazard zones may need a Class A assembly.

Why Clear Shield for a new roof installation in Los Angeles

Reviewers describe the habits we want on every new roof. One customer says we took care of the permit process, another received drone photos during the work, and another saw a second pass with a magnetic roller for missed nails. One Van Nuys homeowner describes an old shingle roof replaced and being very happy with the result, and another mentions pictures and measurements before the price.

We write down the scope before work starts, name the material and color, and price soft decking before it is replaced. For an ADU or an addition, that includes how the new roof drains and where it joins the old one. A written estimate and a clear sequence let you compare us with any other bid on the same lines.

We cover Burbank, Culver City, Hidden Hills, where homeowner association rules can govern roof materials, and La Cañada Flintridge. After install, a yearly roof maintenance visit keeps small gaps from becoming leaks.