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
Fast, Reliable Roofing Company Across Westwood
If you own a home in Westwood, you already know the drill: the houses here weren’t built on one template. A 1926 Spanish Colonial on Comstock has nothing in common with a 1962 ranch south of Wilshire, and neither behaves like a flat-roof mid-century addition tucked behind a 1930s Mediterranean. That’s exactly why roofing in Westwood takes more than a truck and a ladder. It takes a crew that knows what sits under the tile, what the hillside does to drainage, and what preservation review near UCLA means for your re-roof. Mercer Roofing Co Los Angeles has been handling Westwood roofs for more than two decades. Our Roofing Company team works this neighborhood weekly. Call (213) 521-8272 for a written estimate before anyone opens a toolbox.
Why Mercer Roofing Co Los Angeles Is Westwood’s Preferred Roofing Company Company
Homeowners in Westwood pick up the phone for one reason above all: they want to know who’s walking onto their property. That’s not paranoia. That’s smart. Every Mercer technician is background-checked, identity-verified, and held to the Threshold Verified standard. You get the name and photo of your technician sent to you before they arrive. They badge in at the door with photo ID, in a clean marked uniform. No generic “roof guy” shows up unannounced.
Our work in Westwood is backed by something concrete. The 365-Day Done Right Promise means if the repair isn’t right within a year, we come back and make it right. Every repair carries a written guarantee, and if it fails, the second visit is free. That’s not marketing language. It’s in writing on every job we do in Westwood, from the flats south of Santa Monica Boulevard to the hills above Sunset.
Grant Whitlock leads our Los Angeles team, and his answer to every pricing question is the same: written price before any work starts, always. No conditional numbers. No surprises on the invoice. That’s the standard we hold in Westwood, and it’s why homeowners from North Westwood Village to Little Holmby keep calling us back.
Styles & brands we work with






Roof Maintenance in Westwood
Roof Maintenance in Westwood isn’t a once-a-decade chore. Between the wet winter season, the Santa Ana wind events, and the way shade from mature oaks and sycamores holds moisture against roof surfaces, a Westwood roof needs eyes on it at least twice a year. We clear valley and eave debris, inspect flashing at chimney and skylight penetrations, check tile and shingle laps, and document the decking condition underneath. For typical Westwood homes, a maintenance visit runs $300 – $650 depending on roof size and pitch. Add gutter clearing and it’s closer to $450 – $800.
Decking and Underlayment Checks
The single most valuable thing we do on a maintenance visit above Sunset is check decking. Homes built in the 1920s and 1930s often have spaced sheathing, not solid plywood. Water gets through failing underlayment fast. Catching it before a wet winter saves the whole ceiling, not just the roof.
Flat-Roof Tie-In Inspections
Mid-century Westwood homes with flat-roof additions create tie-in points where the flat membrane meets the original pitch. Those seams are where water finds a way in. Our maintenance walk includes a close examination of every tie-in, every scupper, and every parapet wall cap.
Roof Coating in Westwood
Roof Coating in Westwood makes the most sense on flat and low-slope roofs, especially the additions and sunroom roofs common in Westwood’s 1950s and 60s ranch stock. A reflective silicone or acrylic coating does two things: it stops active small leaks and it cuts attic temperatures in the summer. The UV degradation on Westwood roofs is real. Dry, hot summers bake membrane roofs, and a coating restores a worn surface without a tear-off. For a typical Westwood flat roof under 1,000 square feet, coating runs $2,500 – $5,500, depending on surface prep, seam reinforcement, and coating mil thickness.
Silicone Coating on Flat Additions
Silicone is the coating we recommend most often on Westwood flat roof additions. It handles ponding water better than acrylic, and ponding is what those low-slope additions do after the framing settles thirty years. The coating seals seams around vents and box gutters that older built-up roofs can’t hold.
Tile Roof Glazing and Reflective Coatings
On clay tile, we don’t coat the tile. We look at the underlayment. But reflective coatings on flat sections that tie into pitched clay tile go a long way in Westwood, where the sun hits exposed western and southern roof planes hard from June through October.
Trusted Brands We Service in Westwood
We install and repair shingle and tile systems from manufacturers that hold up under Southern California’s sun load and wet-winter cycles, including GAF, CertainTeed, and Atlas. When a Westwood tile roof needs matching replacements, we source from local salvage and the same manufacturers that supplied the original builds whenever possible. Same goes for flat-roof membranes and coatings. We keep turnaround fast for Westwood homeowners because our crews stage materials in the metro area, not in another county. That means fewer days with a tarp on your roof and fewer chances for wind to lift the protection before the new system is fixed.
See the difference
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After
Before
After
Before
AfterCommon Roofing Company Problems We See in Westwood Homes
- Spaced sheathing under original clay tile. In the hills north of Sunset, many original 1920s clay tiles were laid directly over spaced sheathing, not solid decking. Tearing off a Westwood tile roof often reveals gaps you can see through, which triggers mandatory decking upgrades under today’s code. Skipping that inspection means new underlayment that sags and leaks within the first wet winter.
- Tight hillside access. Narrow driveways off streets like Comstock and Glendon make hoist placement and dumpster access a scheduling problem, not just a logistics one. Underestimating access leads to double-handling, and double-handling tears underlayment. We scope access as part of the quote.
- Flat-roof tie-ins on mid-century additions. Westwood ranches from the 1950s and 60s often have flat-roof additions tied into a pitched main roof. The transition membrane fails first. Once water gets under the tie-in, it travels along the framing and shows up inside a wall, not on the ceiling.
- Santa Ana wind lift. Wind events push lifted tiles and curled flashing back against weather. If the underlayment is old, that opening lets water in during the following winter storms. Flashings need mechanical fastening and sealant that handles that kind of repeated flex.
Key takeaways: Westwood’s pre-war tile roofs over spaced sheathing demand a structural decking inspection before a relay, code now requires solid decking on re-roofs, and flat-roof mid-century additions fail at the tie-in seam first. Scheduled maintenance twice a year catches most of this before it becomes a ceiling stain.
Pricing for Roofing Company in Westwood, CA
Roofing in Westwood runs the full range because the housing stock runs the full range. A simple composition shingle roof on a 1950s ranch runs $9,000 – $16,000. Tile re-roofs on Spanish Colonials start around $18,000 and run past $45,000 when structural decking replacement and preservation review are involved. Flat roof membrane replacement on a typical mid-century addition runs $6,000 – $12,000. Roof coating runs $2,500 – $5,500. Maintenance visits land between $300 and $650. The factors that move the number: decking condition, access for material hoists, tie-in complexity, and whether the roof sits on a hillside with limited staging. Every one of those is scoped in person before we quote. Call (213) 521-8272 for a free estimate. You get a written price before any work starts, every time, with no surprises on the invoice.
We Also Serve Cities Near Westwood
Mercer Roofing Co Los Angeles serves Westwood and the surrounding area, including Roofing Company in Westwood neighbors like North Hollywood, Burbank, West Hollywood, and Venice. If you’re in one of those cities and need the same written guarantee, background-checked technicians, and honest pricing, call (213) 521-8272 and tell us where you are. We’ll send the same crew standards and the same written promise.
Serving Westwood, CA - Our Local Coverage Area
We’re based in the Westwood 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 Roofing Company in Westwood
Preservation review near UCLA can restrict changes to the exterior appearance and roofline, and in many cases the original clay tile is expected to stay or be salvaged and reset. The rule of thumb in Westwood: keep the tile, replace what’s under it. We work with homeowners to document conditions and plan re-roofs that keep the original tile profile while bringing the decking and underlayment to current code. Every step goes into the written quote, including the preservation timeline if review applies to your block. Call (213) 521-8272 and we’ll tell you what your property’s status means before you spend anything.
No, and no reputable roofer should say yes. Today’s code requires solid decking, and laying new underlayment over spaced sheathing in Westwood means the underlayment bridges the gaps, sags, and leaks within the first wet winter. Off Comstock Avenue, our crew pulled back clay tile on a 1926 Spanish Colonial to find redwood spaced sheathing with daylight visible from the attic. We installed new CDX plywood decking, ice and water shield at the eaves, and a high-temperature underlayment before resetting the original tile, which brought the roof to current code without losing its historic look. That’s the correct sequence, and the quote reflects it honestly.
We remove the failing tie-in membrane, inspect the framing transition, install new flashing that laps correctly under the shingle course and over the flat membrane, and use sealant that handles thermal movement. The tie-in is the highest-failure seam on mid-century Westwood additions, so we inspect it on every maintenance visit and photograph it before and after repair. Call (213) 521-8272 to have your tie-in checked before the winter rain.
A square is 100 square feet of roof area. In Westwood, shingle work is typically quoted per square, while tile and flat work are quoted as full projects with line items for decking, underlayment, flashing, and waste. Compare quotes by line item, not just the bottom number. One bid that’s lower may skip the decking replacement your tile roof actually needs. Mercer gives you a written line-item price before any work starts, so you can see exactly what you’re paying for and why. Call (213) 521-8272 for a quote you can actually read.
Replacing the lifted flashing and mechanically fastening it with the proper lap and sealant prevents most wind-lift recurrence. On Westwood tile roofs, we also check the tile laps and replace any that have shifted. Loose flashing left through the winter is the most common source of leaks in Westwood after Santa Ana events. Call (213) 521-8272 and we’ll send a technician to inspect it. You’ll know exactly who’s coming and exactly what it costs before anyone goes up the ladder.
Written by Grant Whitlock, Owner at Mercer Roofing Co Los Angeles, serving Westwood with honest pricing, background-checked crews, and a written guarantee on every repair.