Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Roofers in Westchester, CA
Roofing in Westchester, CA means working on homes built mostly between the 1940s and 1960s, many with low-pitch or flat roofs, original clay tile, or wood shake still doing the job after seventy years. The coastal marine layer that sits over the neighborhood most mornings accelerates moss and algae growth on north-facing slopes, while Santa Ana winds test loose tiles and shingles every fall. If you’re checking this page, you’re likely deciding who to call. Mercer Roofing answers the phone with a live person, sends a written price before any work starts, and every technician who rings your doorbell arrives with a photo ID badge and a name you already know. Call (424) 435-5428 for a free estimate.
Why Westchester Homes Are Different
Westchester’s housing stock is not like the rest of Los Angeles. The streets north of Manchester and west of Sepulveda are lined with single-family detached homes, many of them Spanish Colonial Revival or Mid-Century Modern, and a large share still carry their original low-slope or flat roofs with gravel-surfaced built-up systems. Those roofs shed water differently than steep shingle roofs, which means drainage details matter more here than they do in the hills. The persistent morning marine layer keeps roof surfaces damp for hours after sunrise, and damp surfaces grow moss faster. Add in periodic Santa Ana events that can lift a clay tile or peel back a composition shingle, and Westchester has a roofing maintenance cycle that’s genuinely different from, say, the Valley or the South Bay beach towns. Homeowners here deal with an older housing stock, moisture, and wind, often at the same time.
There’s also the question of architectural guidelines. Several Westchester pockets have design standards that restrict what can be installed, particularly when original tile or wood shake is being replaced. The Kentwood neighborhood is a good example: many of its 1950s clay tile roofs have developed the characteristic dark patina the marine layer brings, and those tiles are brittle now. Matching a broken tile often means custom fabrication rather than pulling a matching piece off a shelf. A roofer who works Westchester regularly already knows that. A roofer who doesn’t, learns it on your roof.
Styles & brands we work with






Our Main Westchester Services
Most calls we take in Westchester start as one of two things: a leak, or a roof that has reached the end of its useful life. Below are the three service areas homeowners ask about most, each with its own dedicated Westchester page.
Roof Repair in Westchester
Repair work in Westchester is rarely a one-size job. We see deteriorated flashing around chimneys and parapet walls on the older Spanish-style homes, cracked clay tiles in Kentwood, and ponding water on flat built-up roofs across the neighborhood’s low-pitch designs. Small leaks, when caught early, are usually an afternoon of work. Larger jobs, where the decking has rotted under a long-standing leak, take longer and cost more. Every repair estimate includes a written price before anything begins, and every repair carries a 365-Day Done Right Promise: if the work is not right within a year, Mercer makes it right. That promise is written, not implied. See Roof Repair in Westchester for a fuller breakdown.

Roofing Company in Westchester
When homeowners search for a roofing company rather than a specific service, they’re usually after something broader: an honest assessment of the roof’s condition, a realistic remaining lifespan, and a plan that doesn’t over-sell. That’s the conversation we have most days in Westchester. We look at the roof as a system, flashing, underlayment, decking, drainage, and ventilation included, and then we put the options in writing. No pressure, no vague “we’ll figure it out later” pricing. You’ll know the number before you commit. For the full picture, visit Roofing Company in Westchester.

Roof Installation in Westchester
A full roof installation in Westchester usually means tearing off a roof that has been there since the Eisenhower administration. On the low-slope and flat designs common to the area, that often involves replacing or repairing the built-up system underneath, not just nailing down new shingles. On tile roofs, it can mean custom fabrication for pieces that are no longer manufactured. We install using manufacturer-recognized brands including GAF, CertainTeed, Owens Corning, IKO, Atlas, and Tamko, and every installation starts with a written, no-surprises price. More detail on Roof Installation in Westchester.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Westchester
We install and repair roofs using manufacturer-recognized shingle brands including Owens Corning, IKO, and Atlas. Parts for these systems are stocked at local supply yards, which keeps turnaround on Westchester repairs to days, not weeks. See our brands for the complete list and warranty details.
See the difference
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AfterPricing for Roofers in Westchester, CA
Roofing prices in Westchester run the same range as most of coastal Los Angeles, with a few local factors pushing numbers up or down. Use the table below as a starting point, then call us for a written line-item quote on your specific roof.
| Service | Typical range in Westchester |
|---|---|
| Minor roof repair (loose shingles, small flashing patch) | $350 – $700 |
| Moderate leak repair (flashing replacement, underlayment patch) | $700 – $1,500 |
| Major repair with decking replacement | $1,500 – $3,500 |
| Clay tile repair or replacement (Kentwood-style roofs) | $18 – $35 per tile, plus labor |
| Flat roof patch or seam repair (low-slope designs) | $400 – $900 |
| Gutter replacement on a typical Westchester home | $1,200 – $2,500 |
| Roof inspection with written condition report | $250 – $450 |
| Full roof installation (composition shingle, typical single-family) | $9,000 – $18,000 |
| Tile roof installation or full replacement | $18,000 – $40,000+ |
| Flat roof replacement (built-up or modified bitumen) | $10,000 – $22,000 |
What pushes a Westchester quote toward the higher end: brittle original clay tile that requires custom fabrication, rotted decking under an old leak, and flat-roof designs where drainage needs to be corrected rather than just resurfaced. What doesn’t push it up? Surprises. You’ll have a written price before any work starts, and the invoice will match it.
Neighborhoods We Serve in Westchester
We work throughout Westchester, from the streets around LMU down toward the Bluffs and across toward Westchester Park. Response to most Westchester addresses is same-day for emergency leak calls and within a few business days for routine repairs and estimates, depending on the season.
- Kentwood
- North Kentwood
- Westchester Bluffs
- Loyola Village
- Osage
Service Area – Cities Near Westchester
Mercer Roofing also serves homeowners in the neighboring communities around Westchester. If you’re in Torrance, CA, Inglewood, CA, Carson, CA, or Hawthorne, CA, the same written pricing, background-checked technicians, and 365-Day Done Right Promise apply.
Serving Westchester, CA - Our Local Coverage Area
We’re based in the Westchester 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 Roofers in Westchester
For an active leak, most Westchester addresses can be reached the same day. We dispatch a technician whose name and photo you’ll receive before they arrive, and they’ll present a written price for the repair before touching your roof. Call (424) 435-5428 and a live person answers, any hour.
Some Westchester neighborhoods have architectural guidelines that restrict roofing materials, especially where original tile or wood shake is involved. We recommend checking with your HOA or local planning office before selecting a replacement material. We can provide material specifications to support that approval process.
Yes. We work throughout Westchester, including Kentwood, the Bluffs, Loyola Village, and surrounding streets. Scheduling is coordinated from our Los Angeles office, and crews dispatch locally, so you’re not waiting on a crew from across the county.
If your roof is leaking, aging, or just needs an honest look, call (424) 435-5428 to schedule your free estimate. You’ll get a written price before any work starts, a technician whose name and photo you already know, and a roof that’s protected by the 365-Day Done Right Promise. That’s the way it should work.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Westchester Customers Say
"Honest inspection. He went up, took photos, and told me I had maybe five more years instead of selling a full replacement."
- Xavier L."Great shingles and a clean install. Wish the cleanup had been done the same day, but they came back the next morning and finished it."
- Tasha G."Roofer showed his ID and gave me the crew lead's name before anyone climbed the ladder. Replaced a patch of missing shingles and resealed two vent boots. Written estimate matched the final bill."
- Brian J.