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 Walnut Park
Roofing work in Walnut Park costs between $4,500 and $28,000 depending on what your house needs. A simple repair on an asphalt shingle roof runs $350 to $900, while a full reroof on one of the 1920s to 1950s bungalows along Seville Avenue or Walnut Street typically lands between $8,000 and $16,000. We’re Mercer Roofing Co Los Angeles, and we’ve worked on enough of these tight-lot homes to know that staging, access, and the original tile assemblies all shape your final price. Call (213) 521-8272 for a written quote before any work starts.
What separates Walnut Park roofing from the suburbs is simple: there’s no room to make a mistake. Houses sit close together, driveways are shared, and a good portion of the roofs were built before underlayment existed. We plan for that before the first nail goes in.
Why Mercer Roofing Co Los Angeles Is Walnut Park’s Preferred Roofing Company Team
We’re not a crew that treats Walnut Park like a generic Los Angeles zip code. Our Roofing Company team sends every technician’s name and photo to your phone before they arrive, and each one badges in with a photo ID at your door. For homeowners in Walnut Park, where opening the door to an unknown worker is a real concern, that badge is the difference between worry and certainty.
Grant Whitlock leads our crews, and he’s walked more Walnut Park roofs than most roofers see in a career. That matters here because the work is specific: low-pitch gable and hip roofs with composition shingles, cracked clay tile, and original built-up gravel that hasn’t been touched since Truman was president. Homeowners in Walnut Park call us because we’ve already seen what’s under their roof, often literally. We know which blocks have the 1930s tile, which alleys can’t fit a dumpster, and which homes need party-wall notice before tear-off starts.
Every job, from a small repair to a full replacement, gets a written price before any work begins and a written guarantee after. Call us at (213) 521-8272 and a live person answers, any hour.
Styles & brands we work with






Commercial Roofing in Walnut Park
Commercial Roofing in Walnut Park covers the flat and low-slope buildings along Pacific Boulevard and the industrial edges near the rail line: strip-mall storefronts, auto shops, small warehouses. These roofs usually have built-up gravel or modified bitumen, and in this neighborhood the failure point tends to be the same as the houses: heat. Walnut Park’s summer sun beats on flat commercial roofs all day, and old drain lines and cracked flashing let water sit until winter rains push it inside. A commercial roof repair here runs $1,200 to $6,500; a full recover or replacement lands between $12,000 and $45,000 depending on square footage and deck condition. We write the price upfront and on tight lots we stage materials in phases so the fire lane stays open.
Flat and Built-Up Roof Repair
Most Walnut Park commercial buildings have built-up gravel roofs, and they fail at seams, drains, and parapet walls first. We map the existing roof, identify the entry points, and repair without tearing off what’s still sound. If the building is occupied during the work, we coordinate noise and staging to keep the business open.
Recover vs. Replace on Walnut Park Commercial Buildings
If the deck is solid, a recover layers new membrane over old and costs about half of a full tear-off. On buildings with waterlogged insulation or rotted decking, a replace is the honest answer. We give both options in writing and never push the bigger ticket when the smaller fix is the right one.
Metal Roof Installation in Walnut Park
Metal Roof Installation in Walnut Park is a strong option for the low-pitch bungalows and flat-roof additions all over the neighborhood. Standing seam and corrugated metal handle the sun’s thermal expansion far better than asphalt, and they shed winter rain cleanly if the slope allows. On a typical Walnut Park home, a metal roof install runs $14,000 to $28,000 depending on the panel profile and whether we’re tearing off old tile and adding underlayment. Metal also works on detached garages with failing built-up gravel, a common structure on these smaller lots.
Standing Seam for Low-Pitch Hip Roofs
The hip roofs on Walnut Park’s 1930s and 1940s homes often don’t slope enough for shingles to perform well long term. Standing seam metal with a snap-lock profile sheds water at lower pitch and lasts decades. We install a full underlayment system beneath the metal, which matters here because many of these homes never had one.
Metal for Flat Roof Additions
Flat roof additions over rear kitchens or porches are everywhere in Walnut Park. Coated steel with a low-profile standing seam system gives those additions a weathertight surface that won’t crack like old tile or blister like poor asphalt work. We flash every penetration and tie the metal into the existing roof edge correctly.
Trusted Brands We Service in Walnut Park
We install and repair GAF, CertainTeed, and Owens Corning shingles, and we stock the most common profiles and colors for Walnut Park customers so a patch job doesn’t wait a week on a warehouse order. For homeowners with tile, we’re familiar with Boral and carry matching profiles for the older cement and clay tiles found on Seville Avenue and nearby streets. On the metal side, we work with manufacturer-recognized panel systems. The brand decision comes down to roof slope, exposure, and what the written quote shows. We’ll walk you through it without pushing whatever’s in the warehouse.
See the difference
Before
After
Before
After
Before
AfterCommon Roofing Company Problems We See in Walnut Park Homes
- 1930s tile with no underlayment: On original clay tile roofs along Seville Avenue, the tiles were often cemented directly to spaced sheathing. One cracked tile leaks straight into the attic, and no amount of caulk fixes it.
- Thermal expansion cracks: Walnut Park’s summer heat then winter rain cycle cracks clay tile and ages asphalt granule surfaces faster than coastal neighborhoods. We see underlayment failures that newer contractors mistake for tile problems.
- Staging on zero-lot-line homes: Many Walnut Park bungalows have six feet or less between houses. A dumpster or material pile in the wrong spot blocks a shared driveway or the only fire lane, and the city will cite it.
- Aging decking on 1920s-1940s frames: The original decking under these roofs is often dried out, water-stained around penetrations, or simply not rated for a modern roof assembly. Reroofing without inspecting and replacing rotted sheathing just hides the problem under new material.
Pricing for Roofing Company in Walnut Park, CA
A roof repair in Walnut Park runs $350 to $900 for asphalt shingle work and $600 to $2,500 for tile or flat roof repairs. A full reroof on a standard 1,000 to 1,400 square foot bungalow costs $8,000 to $16,000 for composition shingles, $14,000 to $28,000 for metal, and $18,000 to $35,000 for tile replacement with modern underlayment. What moves the number: roof pitch, access for staging, whether the existing decking is sound, and whether the job needs a permit and inspection. Tight-lot staging adds labor, not surprise change orders. We give you a written line-item price before any work begins, and that written price is what you pay. Call (213) 521-8272 to schedule a free estimate.
We Also Serve Cities Near Walnut Park
Our crews serve Walnut Park and the surrounding communities. We regularly work in Los Angeles, Burbank, South Gate, and Lynwood. For homes in those areas, the scheduling and dispatch come from the same Los Angeles office, and the same written-price and photo-badge standards apply on every job.
Serving Walnut Park, CA - Our Local Coverage Area
We’re based in the Walnut Park 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 Walnut Park
Most full reroofs in Walnut Park require a permit, and the tight lot affects it because the inspector needs safe access to the roof edge and interior access for deck inspection. We pull the permit, schedule the inspection, and coordinate access so the inspector isn’t walking through a neighbor’s yard or blocked by our staging. Repairs that don’t change the roof structure often skip the permit, and we’ll tell you which applies to your job in the written quote. Call (213) 521-8272 and we’ll sort out the permit path for your specific roof.
We start by notifying the adjacent owner before we touch the edge closest to their wall. On a zero-lot-line tear-off, we remove tile or shingle carefully at the shared edge, protect the neighboring stucco, and stage debris away from the property line. We also run a clean-drop tarp system instead of throwing material, which matters when the gap between houses is five feet. The written quote includes the extra labor this takes, so it’s not a surprise on the invoice.
If your roof is original tile cemented to spaced sheathing, replacing only the broken tile leaves the attic open to leaks from any future crack. We’ll give you two options in writing: a patch to get you through the season, or a full reset that adds a modern underlayment system beneath the tile. The reset costs more, but it’s the only fix that actually solves the direct-leak path. Call (213) 521-8272 for an exact quote on your roof.
Walnut Park follows Los Angeles County noise rules, which generally limit construction noise to weekday and Saturday daytime hours. We schedule tear-off and nailing within those windows and keep equipment off the shared driveways outside those hours. On streets with close neighbors, we send a note a day before loud work starts so no one’s surprised at 7 a.m. The written estimate assumes compliant scheduling, not rushed after-hours work.
Staging affects the quote because on a zero-lot-line lot we often can’t park a full dumpster or material trailer on the property. That means phased debris pickup, street-parking considerations, and sometimes hand-carrying materials from the curb. It adds labor hours, and the written quote reflects that honestly. We’d rather quote the real number than hit you with a change order midway through. Call (213) 521-8272 and we’ll walk the lot with you before pricing.
When you need a roofing company that understands Walnut Park’s tight lots, old tile, and the families living inside, call Mercer Roofing Co Los Angeles at (213) 521-8272. A live person answers, every time. We’ll send a technician’s name and photo before they arrive, and they’ll badge in at the door. The estimate is free, the price is written before work starts, and every repair carries a written 365-Day Done Right Promise.
Written by Grant Whitlock, Owner at Mercer Roofing Co Los Angeles.