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AfterFull Roof Replacement in Los Angeles, CA
A full roof replacement in Los Angeles typically costs between $9,800 and $22,000 for a standard 1,500 to 2,200 square foot home, depending on the shingle brand, roof pitch, and whether decking needs to be replaced. Most full replacements in LA take 2 to 5 days once materials arrive. At Mercer Roofing Co Los Angeles, you’ll have a written price in hand before we lift a single shingle, and the technician who shows up at your door will have already sent you their name and photo ahead of time. Call (213) 521-8272 for a free estimate on your full roof replacement, or keep reading to understand exactly what the process looks like.
A full roof replacement is different from a repair or a partial reroof. It means removing every layer of existing roofing down to the decking, inspecting what’s underneath, replacing damaged wood, and installing a complete new roofing system: underlayment, flashing, shingles, ridge caps, and ventilation. It’s the most permanent fix a roof can get. If you’re weighing a full replacement against ongoing repairs, our Roof Replacement & Installation page explains the full range of what we do across Los Angeles.
When You Need Full Roof Replacement
Not every roof problem calls for a full replacement. But when the signs below show up together, patching becomes a temporary fix on a roof that’s reached the end of its working life. Here’s what we see across Los Angeles, from the salt air of the Palisades to the dry heat of the Valley:
- Your roof is 20 to 25 years old and it’s the original install. Asphalt shingle roofs in Los Angeles sun and heat rarely make it much past two decades. The UV exposure on a South LA or Sherman Oaks roof bakes shingles until they curl, crack, and lose their grit.
- Shingles are curling, cracking, or you’re finding granules in your gutters. Granules are the roof’s sunscreen. Once they start washing down your downspouts after rain, the shingle is losing its protection, and the underlying asphalt is breaking down.
- You see daylight in the attic or water stains on the ceiling. If the roof decking is visible from inside your attic, the barrier between your house and the weather has already failed. Water stains on ceilings in Silver Lake or West Adams are rarely from one leak; they’re usually the first visible sign of a roof that’s failing in multiple places.
- There are soft spots when you walk the roof or sagging along the ridge line. Soft decking means water has gotten into the wood under the shingles. In older homes around places like Echo Park or Highland Park, we often find decking that’s been silently rotting under shingles that looked fine from the street.
- You’re paying for repairs more than once a year. A roof that needs a thousand dollars in repairs every year is a roof telling you it’s done. The math usually favors replacement once the repairs become a recurring event.
- After a heavy storm, you see missing shingles in multiple spots. Wind-driven rain in the foothills, from Pasadena to La Cañada, can strip shingles in patches. When it’s more than a square or two of damage, a full replacement is often more cost-effective than piecing it back together.
Our Full Roof Replacement Process
Every full roof replacement we do in Los Angeles follows the same disciplined sequence. No shortcuts, no mystery pricing, no surprises at the end. Here’s what to expect when you work with Mercer Roofing Co Los Angeles:
- You call and speak to a live person. Our phones are answered 24/7, not by a voicemail or a call-back form. We’ll talk through what you’re seeing, ask a few questions about your roof’s age and history, and schedule a time that works for you.
- We send you your technician’s name and photo before the visit. You’ll know exactly who is coming to your door before they ring the bell. When your technician arrives, they’ll be in a clean, marked Mercer uniform with a photo ID badge. Every technician we send is background-checked and identity-verified under the Threshold Verified standard.
- We inspect the roof, attic, and flashing thoroughly. We don’t do drive-by estimates. We get on the roof, look at the decking, check the flashing at chimneys, vents, and skylights, and evaluate your ventilation. In Los Angeles, poor attic ventilation is a silent roof killer, and we’ll check that too.
- You get a written price before any work starts. Not a verbal ballpark. A written line-item price for the full job, including materials, labor, decking replacement if needed, dump fees, and permit costs. If you approve it, that’s the price you pay. No add-ons on the final invoice.
- We do the full tear-off and replacement. We remove the old roof down to the decking, replace any damaged wood, install new underlayment and flashing, then shingle the roof with your chosen brand from manufacturers we trust like GAF and CertainTeed. We protect your landscaping, keep the job site clean at the end of every day, and magnetic-sweep for nails.
- Final inspection and cleanup. We walk the roof with you if you’d like, show you the completed work, and confirm the dumpsters are picked up and the property is clean. Every job comes with the 365-Day Done Right Promise in writing: if it’s not done right, we make it right.
Full Roof Replacement Pricing in Los Angeles
Full roof replacement in Los Angeles is priced differently than in most US cities because of local labor rates, permit fees, and material logistics. Here’s what you can expect to pay, based on the work we’ve done across neighborhoods from Los Feliz to Mid-City:
| Roof Size & Scope | Typical Price Range (Los Angeles) |
|---|---|
| Small home / simple roof (1,000 – 1,500 sq ft) | $7,500 – $12,500 |
| Average home (1,500 – 2,200 sq ft) | $9,800 – $18,000 |
| Larger home or steep roof (2,200 – 3,000+ sq ft) | $14,000 – $26,000+ |
| Decking replacement (per sheet, as needed) | $95 – $135 per sheet |
| Permit fees (varies by jurisdiction within LA County) | $350 – $1,200 |
What moves the price up or down? The big factors are roof pitch (a steeply pitched roof in Mount Washington costs more in labor than a low-slope roof in Culver City), the number of penetrations like chimneys, skylights, and vents, the shingle brand you choose, and whether the old roof has multiple layers that need to be torn off. We work with manufacturer-recognized shingle brands including Atlas, Tamko, and Boral, and we’ll give you straightforward trade-offs on cost versus lifespan for each.
The estimate is free. The written price is firm. Call (213) 521-8272 to schedule yours.
Why Los Angeles Homeowners Choose Mercer Roofing Co Los Angeles for Full Roof Replacement
We know that hiring a roofing company is, at some level, opening your home to strangers. That’s not a small thing when you’re home alone with young kids, or when you’re an older homeowner who’s had a bad experience with a contractor who never showed. We built Mercer Roofing Co Los Angeles around that specific worry, and we do something concrete about it:
Every technician’s name and photo is sent to you before the visit. When the doorbell rings, you’ll know who you’re opening the door to. Our technicians carry photo ID badges, wear clean Mercer uniforms, and have passed a background check as part of the Threshold Verified standard. This is not a “nice to have”; it’s the baseline of every job we do in Los Angeles.
The written price comes before the work, every time. No “we’ll see what we find.” No “it might run a little more.” You get a line-item written estimate before any work begins. If the price changes, you’ll know before we do the work, not after.
365-Day Done Right Promise. We put it in writing on every job. If the work isn’t done right within a year, we make it right. That’s the guarantee, and it’s specific: 365 days, in writing, included with your job.
Live 24/7 phone support. You call and a real person picks up. If you have a question at noon on a Tuesday or a leak at 2 a.m. during a December storm, you get a human being on the line. Not a prompt, not a voicemail, not a form you fill out and hope someone reads.
Mercer Roofing Co Los Angeles is part of the Threshold Group family of home-service companies, founded in 2000. Each location is independently owned and operated, and every one is held to the same Threshold Verified standard: background-checked, identity-verified, photo-badged technicians on every visit. That’s the framework, and we don’t waver from it.
Key Takeaways: Full Roof Replacement in Los Angeles
- Full roof replacement in LA typically costs $9,800 to $22,000, with smaller homes starting around $7,500.
- The age of your roof, granule loss, attic daylight, and recurring leaks are the strongest signs a replacement is due.
- Mercer sends your technician’s name and photo before the visit, with a photo ID badge at the door.
- You get a written, line-item price before any work starts. No surprises.
- Every full replacement includes the 365-Day Done Right Promise in writing.
- We answer our phones live 24/7. Call (213) 521-8272 to schedule a free estimate.
FAQs – Full Roof Replacement
How much does a full roof replacement cost in Los Angeles?
A full roof replacement in Los Angeles typically costs between $9,800 and $22,000 for an average 1,500 to 2,200 square foot home, with smaller or simpler roofs starting around $7,500 and larger, steeper roofs running $26,000 or more. Your specific price depends on roof size, pitch, shingle brand, and decking condition. Call (213) 521-8272 for a free, written estimate with line-item pricing.
How long does a full roof replacement take in Los Angeles?
Most full roof replacements in Los Angeles take 2 to 5 days from tear-off to final cleanup, depending on the size of the roof, the number of penetrations, and whether decking needs to be replaced. Weather delays are rare in LA’s climate, but we’ll keep you posted on timing and let you know the schedule before work begins. Call (213) 521-8272 and we’ll give you a realistic timeline for your specific roof.
Is it cheaper to repair a roof or replace it in Los Angeles?
Repair is cheaper in the short term (typically $450 to $1,800 per repair in Los Angeles), but if you’re repairing multiple times a year, replacement is usually the better value. A roof that needs more than one or two repairs a year is failing systemically, and the cumulative repair costs will eventually exceed the cost of a full replacement. We’ll give you an honest assessment of whether repair makes sense or if you’re better off replacing now.
Do you offer financing or payment plans for roof replacement in Los Angeles?
We provide a written price before work starts and can discuss payment options when you call. The on-site estimate is free, and there’s no obligation to proceed. Call (213) 521-8272 and we’ll talk through your roof, your budget, and what makes sense for your home and your timeline.
Written by Grant Whitlock, Owner at Mercer Roofing Co Los Angeles, serving Los Angeles.
Ready to talk about your roof? Call Mercer Roofing Co Los Angeles at (213) 521-8272 for a free, written estimate on a full roof replacement. We’ll send you your technician’s name and photo before the visit, put the price in writing, and back the work with the 365-Day Done Right Promise. Or return to home to explore our full range of roofing services across Los Angeles.