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 Roof Replacement Across Walnut Park
Roof replacement in Walnut Park, CA typically runs $9,800 – $18,500 for a full tear-off and new asphalt shingle roof on the small bungalows and Spanish-style homes that dominate the area, with most jobs completed in 3 – 5 working days once permits clear LA County. If you’re dealing with a failing roof on a home off Alameda Street, Florence Avenue, or one of the narrow side streets in 90255, you need a roofer who understands county permitting and tight-lot logistics, not a generalist figuring it out on your dime. Call Koreatown Roofing at (866) 974-2271 to schedule a free in-person estimate. We’ll walk your roof, check the decking, and give you a written line-item quote before anything gets signed.
Why Koreatown Roofing Is Walnut Park’s Preferred Roof Replacement Company
We’re a roofing-only contractor, which matters in Walnut Park specifically because the houses here throw curveballs. Most homes were built between the 1920s and 1950s on narrow, closely spaced lots. Additions and converted garages create low-pitch rear sections that a general contractor might misread. We don’t. Roofing is all we do, across every stage: Roof Replacement, inspection, and repair. That means when we quote a replacement in Walnut Park, we’re already thinking about how the permit will clear LA County Public Works, and whether the rear flat section needs re-pitching or a membrane system instead of shingles.
Manny Cordero leads our crews, and he’s built the company around a simple idea: homeowners deserve real material choices, not whatever brand the contractor has margin on that month. We install products from GAF, CertainTeed, Owens Corning, and Boral, among seven manufacturers total. That breadth shows up in the details. A Walnut Park homeowner with a Spanish-style stucco bungalow may want the texture and color range of CertainTeed Landmark. A homeowner watching their budget on a 900-square-foot 1940s home may lean toward GAF Timberline HDZ. Either way, the recommendation comes from what fits the job.
Residents across Walnut Park have come to expect that from us: straight answers, fixed pricing, and a crew that shows up when we say we will. No rotating subcontractor crews. The name on the truck is the name doing the work.
Styles & brands we work with






Asphalt Shingle Roof Replacement in Walnut Park
Asphalt Shingle Roof Replacement in Walnut Park is the most common full-roof job we do, and for good reason: the area’s hot, dry inland-adjacent summers bake asphalt shingles until they curl and lose granules, while occasional Santa Ana winds tear at loose tabs. A full replacement on a typical Walnut Park bungalow runs $9,800 – $14,500 depending on square footage, decking condition, and whether you choose a mid-grade dimensional shingle or a premium architectural line like Owens Corning Duration or GAF Timberline.
Decking and Underlayment First
On homes built before 1960, we often find original wood plank decking that has dry-rotted from decades of UV exposure and wind-driven heat. Walnut Park houses were built tight and cheap in a lot of cases, so the decking gets checked board by board. If it’s rotted, it gets replaced before the new underlayment goes down. That’s the difference between a roof that lasts 25 years and one that fails in eight.
Low-Slope Rear Sections
Many Walnut Park homes have rear additions or enclosed porches with low-pitch roofs that were never pitched properly. Those sections shouldn’t get standard shingles. We lay a modified bitumen underlayment and, where needed, a membrane system on the low-slope portion before tying it into the shingled main roof. It’s a detail that keeps water out of the back bedroom during the rare winter downpour.
New Roof Installation in Walnut Park
New Roof Installation in Walnut Park covers everything from a full replacement on the original 1920s – 1950s house to roofing a newly added rear living space or rebuilt garage. Pricing runs $11,500 – $18,500 for a complete tear-off and new installation on the average home here, with new construction and additions priced per square foot based on pitch, access, and the material you choose. If you’re re-roofing a converted garage or adding a workshop, the number shifts based on whether we’re tying into an existing roofline or starting clean.
New Construction and Additions
When we roof a new addition in Walnut Park, we’re working alongside the county inspector from the start. That means decking attachment, nailing patterns, and flashing details get documented as we go, not retrofitted after the fact. For homeowners who have lived through a county inspection bottleneck, you know that matters.
Matching the Original House
A new roof on a Spanish-style stucco home should look like it belongs there. We pull from manufacturer color lines that include terracotta-toned and warm-earth shingle options from Boral and CertainTeed, giving you a roof that respects the original architecture while outperforming whatever was installed in 1948.
Trusted Brands We Service in Walnut Park
We work with the brands you already trust. GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral: seven manufacturers, which means your material recommendation comes from what your home needs, not what we happen to stock. For Walnut Park customers, we keep a rotating inventory of common shingle colors and accessories from GAF and Owens Corning at the ready so most replacement jobs aren’t waiting on a distributor. Whether you want the dimensional depth of GAF Timberline HDZ or the stone-coated steel option Boral provides, Manny and the crew will walk you through the trade-offs in plain language. Your roof, your material choice.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Walnut Park Homes
- Ponding water on low-pitch rear additions. Original built-up roofing was never re-pitched when additions went in decades ago. Water sits, the membrane fails, and the interior ceiling stains in winter. Full replacement is the only real fix.
- Rotted original wood-sheathed decking. On many 1930s – 1950s homes, the decking under the old roof is original and failing. We replace it board by board before any new underlayment is installed, because you can’t attach a 25-year shingle to 80-year-old rotted wood.
- Torch-down and hot-mop work too close to the property line. On tight lots where a rear roof sits within a few feet of the neighbor’s wall, old torch-down applications created fire risk and code flags. County inspectors check this during final sign-off, and we stage the work so it passes cleanly.
- Santa Ana wind damage to old shingles. Late season wind events strip tabs off shingles that were already brittle from summer heat. Homeowners notice granule piles in gutters long before they call. By then, the decking underneath is often damaged too.
Pricing for Roof Replacement in Walnut Park, CA
Expect to pay $9,800 – $18,500 for a full roof replacement in Walnut Park, with the range driven by three local factors: the size of your roof, the condition of the wood decking underneath, and whether you have a low-pitch rear section that needs a membrane instead of shingles. A simple 900-square-foot 1940s bungalow with clean decking and standard dimensional shingles lands around $10,500 – $12,000. A larger home with a rear addition, rotted decking to replace, and architectural-grade shingles from Owens Corning or Boral lands in the $15,000 – $18,500 range. We scope the decking, access, and county inspection path before we quote, so the number on your written estimate is the number you pay. No change orders after we start. Call (866) 974-2271 to schedule your free estimate.
We Also Serve Cities Near Walnut Park
Koreatown Roofing serves Walnut Park and the surrounding southeast LA communities, including Huntington Park, Bell, Cudahy, and Maywood. If you own property in one of those areas and need a straight answer on roof condition or replacement cost, call us at (866) 974-2271. We’ll treat you the same way: clear pricing, real material options, and a crew that does roofing and nothing else.
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 Roof Replacement in Walnut Park
No, but you need a county permit. Walnut Park is unincorporated LA County, so roof replacement permits must be pulled through LA County Public Works/Building & Safety rather than a city hall. We pull the permit, schedule the inspection, and make sure the county inspector can verify decking attachment, underlayment, and flashing before final sign-off. Call (866) 974-2271 and we’ll handle the paperwork from start to finish.
Tight lot spacing changes where we stage debris, place ladders, and route materials. On streets off Alameda and Florence, roofs often come within four or five feet of the neighbor’s wall, so we use the driveway and alley for tear-off staging and keep ladder placement tight to your property. It also means we plan the inspector’s access path in advance, so final inspection doesn’t stall because the ridge vent is unreachable. Call (866) 974-2271 for an estimate that accounts for your lot’s realities.
Low-pitch and flat sections perform best with a modified bitumen membrane system, not standard asphalt shingles. Shingles on a roof below a 2:12 pitch will let wind-driven rain back up under the tabs. We install a self-adhered modified bitumen underlayment on those sections, sometimes with a torch-down cap sheet, and tie it into the shingled main roof with proper flashing. Your material choice still applies to the main slope. Call (866) 974-2271 and we’ll tell you which sections need membrane and which can carry shingles.
We check every board after tear-off and replace any rotted decking before new underlayment goes down. On 1920s – 1950s homes with original wood sheathing, that often means replacing 20 to 40 percent of the deck. You’ll see the exact decking replacement on your written estimate before work starts, with a per-sheet price you can verify. Call (866) 974-2271 to get a roofer who will tell you the truth about what’s under your shingles.
Yes. We carry manufacturer color lines from CertainTeed and Boral that include terracotta, earthen, and warm clay tones designed to sit naturally on Spanish-style stucco homes without the weight and cost of real tile. The texture and depth read as authentic from the street, and the performance is modern dimensional asphalt. Call (866) 974-2271 for a free estimate and we’ll bring actual shingle samples to your house, not a brochure.
One thing to know before you call: on a recent job, our crew tore off three layers of built-up roofing over the original wood decking on a 1940s Spanish-stucco bungalow off Alameda Street. We replaced rotted fascia and soffit, installed a modified bitumen underlayment with new drip edge, and laid GAF Timberline HDZ architectural shingles on the low-slope rear section. Because the roof came within four feet of the neighbor’s wall, we staged debris in the driveway and used a compact ladder setup so the county inspector could access the ridge vent and flashing without crossing the property line. That’s the kind of roof replacement Walnut Park demands, and it’s the kind we do every week.
Written by Manny Cordero, Owner at Koreatown Roofing, serving Walnut Park and surrounding southeast LA communities.