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 Lomita
Roof replacement in Lomita runs $9,500 to $18,500 for a typical 1,200 – 1,600 square foot single-story home, depending on whether you need architectural shingles, flat roofing sections, or full decking replacement. We serve all of 90717 and the surrounding South Bay. Call (866) 974-2271 to schedule a free estimate with Koreatown Roofing, led by Manny Cordero and specializing in roof replacement across Lomita’s postwar housing stock. We know these roofs because we work on them every week, not once a season.
Lomita’s marine layer changes how a roof fails. We’ll explain exactly what that means for your home below, and why the material choices here are different from what an inland LA contractor would specify. No fear-mongering, just straight answers from a roofing-only crew that knows this city’s blocks well.
Why Koreatown Roofing Is Lomita’s Preferred Roof Replacement Company
We’re roofing specialists, not generalists. Every job we take is a roof: inspection, repair, or full replacement. That’s the entire scope of what we do, which means our Lomita customers get a crew that thinks about roofing materials, fasteners, flashing, and underlayment every single day, not a GC who subs the roof to whoever’s available.
Our customers in the 90717 zip code call us for tear-offs on the 1940s and 1950s stucco tract homes that define Lomita’s residential streets. Those houses have a different set of problems than newer construction in Torrance or Rolling Hills Estates, and we’ve seen the same failure patterns enough to quote them accurately the first time. Manny Cordero runs our operation with that neighborhood-accountability mindset. Our reputation lives and dies on the streets we serve, not in a call center across the country.
We also bring seven manufacturer lines to every Lomita estimate: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That’s the key difference. You don’t get pushed into whatever brand a contractor has a single account with. You see the options, understand the tradeoffs, and pick based on your budget and what your roof actually faces here in the South Bay.
Styles & brands we work with






Roof Replacement Contractor in Lomita
A Roof Replacement Contractor in Lomita handles the full tear-off and re-roof of your home, and on most of Lomita’s 1940s – 1960s stock that means accounting for things an inland crew won’t think about: shallow-pitch original roofs, skip-sheathing-era decking, and detached garages whose flashings tie into the main roof and corrode first in our marine layer. We inspect every tie-in, every valley, and every penetration before we quote, so the number you get covers the job as it actually exists on your block.
Lomita homeowners call us when their roof is past patching: curled tabs across entire planes, soft decking visible from the attic, leaks at the garage tie-in, or simply age. A full replacement here typically runs $9,500 to $15,500 for asphalt shingles and $14,000 to $18,500 when rotted decking or a flat section pushes the scope up. Those are Lomita-specific numbers because we quote for the coastal moisture and the tight-lot access that defines the city.
Decking and Tear-Off Realities
On the older Lomita blocks, we routinely find decking that’s softened from years of marine-layer dampness under shingles that never fully dried. You won’t see that from the curb. Our quote accounts for board replacement because we know it’s likely, not because we’re padding the number. If we tear off and find decking that’s still solid, you don’t pay for what we didn’t replace.
Tie-Ins at Garages and Additions
Lomita’s detached garages and small stucco additions create flashing joints that stay damp longer than the main roof plane. Standard galvanized flashing pits and fails there years before the shingles above it. We replace those tie-ins with hot-dip galvanized or stainless hardware and seal every joint properly, because if you re-roof the house and leave the garage flashing standard, you’ll be chasing that leak before the new shingles are halfway through their life.
Asphalt Shingle Roof Replacement in Lomita
Asphalt Shingle Roof Replacement in Lomita is the workhorse job for most of our local customers because the stock here is overwhelmingly small single-story homes where architectural shingles give the right balance of cost and service life. We install GAF, CertainTeed, Owens Corning, and other trusted lines we service, and we recommend architectural-grade over 3-tab for one specific local reason: the fog-side moisture cycle lifts 3-tab tabs far sooner, while a sturdier architectural shingle holds its seal against that damp, cold morning air.
What does a Lomita asphalt shingle replacement cost? For a typical 1,200 – 1,400 square foot home, expect $9,500 to $14,000 including tear-off, new underlayment, ice and water shield in valleys and around penetrations, and hot-dip drip edge. If your roof has a flat section or a low-slope area that needs membrane, add $2,500 to $5,000. If we’re replacing rotted decking boards, that’s additional per-sheet, and we’ll show you the boards we’re pulling so you can see why.
Architectural Shingles for Lomita’s Weather Cycle
Architectural shingles hold up better under Lomita’s marine layer because the thicker, laminated construction resists the slow moisture-driven curling we see on north-facing planes. They also handle Santa Ana gusts better than lightweight 3-tabs. The price difference is modest on most Lomita homes, and for a roof that has to live in damp morning fog and dry afternoon sun, it’s the specification we usually recommend.
When Your Lomita Roof Is Beyond Repair
You can patch a leak. You can replace a few tabs. But when the north slope is curled across entire sections, or the decking’s gone soft at the garage tie-in, spot repairs just turn into an ongoing subscription. A full replacement with proper coastal-spec details costs more once, and then it’s done. That’s the honest math we walk through on every Lomita estimate.
Trusted Brands We Service in Lomita
We work with GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, and we stock parts and accessories for Lomita jobs so we’re not waiting on a distributor when your tear-off reveals something unexpected. That seven-brand lineup means your roof gets the product that fits your budget and Lomita’s marine-layer conditions, not whatever one supplier happens to push. You already know names like GAF and Owens Corning. We bring those options to your kitchen table and walk through the differences in plain English.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Lomita Homes
- Curled shingle tabs on the north-facing slope while the south slope still looks fine. The fog-cooled shaded plane stays wet past morning, and the tabs lift from moisture, not heat. By the time a homeowner notices the curl, underlayment is often already compromised, and the quote changes from a simple overlay to a full tear-off with decking repair.
- Corroded flashing at detached-garage and addition tie-ins. Lomita’s marine layer keeps those joints damp for hours every morning, and standard galvanized flashing pits and fails years before the shingles above it. We see garages leaking long before the main house shows any problem, because the joint never dries.
- Soft decking from skip-sheathing-era construction. Many original Lomita roofs were built with spaced boards that let moisture sit under the shingles for decades. When we tear off, we routinely find decking that’s spongy and needs replacement, which is why our Lomita quotes include a realistic decking allowance rather than a sun-belt price that assumes clean teardown.
- Flat or low-slope sections that trap water where the addition meets the main roof. Those small stucco additions and enclosed porches on Lomita lots often have shallow-pitch or flat areas that don’t drain well under morning fog. We specify membrane and proper slope or drainage details there, not shingles that will fail on a low angle.
Pricing for Roof Replacement in Lomita, CA
A full tear-off and re-roof on a typical Lomita single-story home runs $9,500 to $15,500 for asphalt shingles, with architectural upgrades pushing toward $14,000 to $18,500 when you add decking replacement or a flat section. The main cost drivers in Lomita are rotted decking from the marine layer, the need for hot-dip or stainless hardware at tie-ins, and the time it takes to work carefully on tight lots with detached garages. A cheaper inland-spec quote might skip decking allowance or reuse existing flashing, and that’s exactly the difference that costs more within a decade on this fog belt. We quote Lomita homes for what this climate actually does to a roof. Call (866) 974-2271 for a free, line-item estimate from a roofing-specialist crew that already knows your block’s roof profile.
We Also Serve Cities Near Lomita
Our Roof Replacement team covers the South Bay beyond Lomita’s 90717, including Torrance, Rolling Hills Estates, West Carson, and Manhattan Beach. We bring the same coastal-spec material knowledge and roofing-only focus to every job in the Roof Replacement in Lomita area and its neighboring communities. If you’re a few blocks over the Lomita line, you’ll get the same straight-talking estimate and the same manufacturer options.
Serving Lomita, CA — Our Local Coverage Area
We’re based in the Lomita 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 Lomita
Because the marine layer keeps the shaded, north-facing plane damp long after the sunny side has dried, so shingle tabs there lift and curl from moisture, not heat. You’ll literally see one slope curling while the other looks nearly new. This is the classic Lomita failure pattern, and it’s why a local quote has to treat the two slopes as two different roofs. Call (866) 974-2271 and we’ll walk your roof with you to show which slope is on which clock.
At tie-ins, drip edge, and any point where the marine layer keeps metal damp for hours every morning, yes, we specify hot-dip galvanized or stainless hardware. Standard electro-galvanized fasteners pinhole and rust through on Lomita’s fog-side joints years before the shingles fail. This is a real, material cost difference between a coastal-spec and an inland-spec roof, and it’s one of the first places a cheap quote cuts corners. Get your free estimate at (866) 974-2271, and we’ll show you the exact hardware we plan to use.
Because Lomita’s marine layer demands hot-dip galvanized or stainless flashing and hardware at every tie-in, valley, and drip edge, and standard galvanized stock fails years early in this fog. The cheap inland quote doesn’t account for that coastal moisture cycle. Within a decade, the low bid’s flashing is rusted through and leaking, and you’re paying for the proper spec anyway. Call (866) 974-2271 and we’ll explain the dollar difference line by line.
One square is 100 square feet of roof area, and roofing prices are usually quoted per square. To compare two Lomita quotes fairly, look at whether each one includes tear-off, underlayment, ice and water shield, decking allowance, and whether the flashing and hardware are hot-dip or stainless. A quote that’s $2,000 cheaper but uses standard flashing and no decking allowance will cost more within ten years on a Lomita roof. We’ll give you a line-item number you can compare directly. Call (866) 974-2271 for a free estimate.
Architectural shingles outperform 3-tab under Lomita’s Santa Ana gusts because the thicker, laminated construction resists lifting and tearing at the seal. Most are rated to 110 mph or higher when installed per the manufacturer’s nailing pattern, which we follow exactly. We also re-set every nail pattern on Lomita jobs because the fog-dampened underlayment can hide loose fasteners from the previous roof. Call (866) 974-2271 for an exact quote on your home.
Written by Manny Cordero, Owner at Koreatown Roofing, serving Lomita and the surrounding South Bay communities.