Architectural shingles
Metal roofing
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 – $18,000 for a typical 1,200 – 1,800 square foot home, with architectural shingle tear-offs landing at the higher end and basic composition at the lower. We serve the 90717 ZIP code with crews who know Lomita’s postwar tract homes and the salt-air corrosion that eats their roofs from the flashing inward. Our Roof Replacement team gives you a straight diagnosis, a line-item quote, and the exact material spec your roof needs before you spend a dollar. Call (855) 382-3237 for a free estimate.
Why Spartan Roof Repair Is Lomita’s Preferred Roof Replacement Company
Spartan Roof Repair is a roofing-only company. We inspect it, we repair it, we replace it. That single-trade focus means the crew on your Lomita roof doesn’t get pulled off a bathroom remodel or a fence job. Roofing specialists, not generalists.
Brent Calloway built this company around one standard: durable work over flashy promises. We stock and install materials from seven major manufacturers, so the recommendation you get is based on what your Lomita roof actually needs, not what’s sitting in a warehouse. We give you a straight answer about your roof. If a tear-off is required, we say so with photos. If a repair buys you five more years, we say that too.
Lomita homeowners deal with a specific problem almost no inland LA contractor understands: salt-laden marine air corroding metal roofing components long before the shingles fail. That’s why our quotes specify hardware grade, not just shingle type. More on that below.
Styles & brands we work with






New Roof Installation in Lomita
New Roof Installation in Lomita means a full tear-off down to the decking, a full inspection of what’s underneath, and a rebuilt roof assembly spec’d for salt air and shallow pitches. This is the service we recommend when the decking has softened from trapped moisture, when the original 1950s flashing has rusted through, or when a patchwork of repairs no longer makes sense. In Lomita, the typical new roof installation runs $11,000 – $18,000 depending on square footage, pitch, and the material tier you select.
Coastal-Spec New Roofs
We specify stainless steel or hot-dip-galvanized fasteners, stainless W-valley flashing, and marine-grade drip edge on every Lomita new roof. Standard electro-galvanized hardware from a big-box store will show rust pockmarks within a few wet seasons near the harbor. The coastal spec costs more upfront and saves you a re-flash within a decade.
Decking and Underlayment
On the shallow-pitch 1950s tract homes along Lomita Boulevard, we regularly find decking that’s soft under spent built-up roofing. A proper new roof installation replaces that decking, lays ice and water shield along valleys and eaves, and only then sets the new shingle system. Skipping the tear-off is the quickest way to pay twice.
Reroofing in Lomita
Reroofing in Lomita is the most common job we do, because nearly every roof in the city is either original, past its second replacement, or showing moisture-driven failure that a patch can’t fix. The work involves tearing off the old shingle or built-up layers, repairing or replacing decking where the marine moisture has done damage, and installing a new roof system with corrosion-rated metalwork. Reroofing typically costs $9,500 – $15,000 in Lomita’s market.
Moisture-Driven Repairs Under the Surface
Before we lay a single shingle, we check what the salt air has done underneath. In Lomita, rusted valley flashing and corroded vents are the rule, not the exception. A reroof that doesn’t address those points just puts fresh shingles over a rust problem that keeps spreading.
The Salt-Air Hardware Spec
On our Lomita jobs, the fasteners, vents, drip edge, and valley metal are stainless or hot-dip-galvanized. It’s the same roof you’d get inland, but the metal spec is different. That’s the difference between a roof that lasts 30 years and one that’s pockmarked in eight.
Trusted Brands We Service in Lomita
We install and service shingles and roofing systems from IKO, Atlas, and Tamko, among seven major manufacturers. That means your Lomita roof doesn’t get a take-it-or-leave-it brand pitch. We stock common profiles locally and source the rest quickly, so a tear-off doesn’t stall waiting on materials. Whether you want a budget-conscious composition shingle or an architectural profile rated for coastal conditions, we’ll give you an honest recommendation from a broad line of brand-name options.
Common Roof Replacement Problems We See in Lomita Homes
- Rusted valley flashing on northeast-facing slopes: On a shallow-pitch postwar tract roof off Lomita Boulevard, our crew opened a valley and found the 1950s sheet-metal flashing rusted clear through on a northeast-facing slope. We replaced it with stainless steel W-valley metal, laid down ice and water shield over the repaired decking, and reset the architectural shingles along the valleys with hot-dip-galvanized nails. We also swapped the rusting metal vents and reset the drip edge and fascia hardware in stainless, because a standard electro-galvanized spec would be pockmarked again in a few wet seasons.
- Corroded fasteners and vents from the marine layer: The harbor’s salt-laden damp air accelerates corrosion on electro-galvanized nails, metal ridge vents, and drip edge. We routinely see fascia boards stained with rust from hardware that should have been stainless or hot-dip from the start.
- Soft decking under spent built-up roofs: Lomita’s 1950s and 1960s tract and custom homes were often built with low-slope or shallow-pitch roofs. Decades of morning fog and marine moisture get trapped under old built-up layers, softening the decking so much that tear-off is the only real fix.
- Flashing leaks before shingle wear: The original sheet-metal flashing on Lomita’s older streets near Western Avenue often fails before the shingles do. Water backs under the underlayment along the valleys, which is why we inspect the metal first on every replacement.
See the difference
Before
After
Before
After
Before
AfterPricing for Roof Replacement in Lomita, CA
Expect to pay these ranges in Lomita’s current market:
- Full tear-off and reroof, 1,200 – 1,500 sq ft: $9,500 – $14,000
- New roof installation with decking repair, 1,500 – 1,800 sq ft: $12,000 – $18,000
- Architectural shingle upgrade: adds $1,500 – $3,500 over composition
- Coastal-spec hardware (stainless/hot-dip): adds $800 – $1,800 depending on roof scope
Factors that move your price: square footage, pitch, decking condition, number of valleys, and whether we’re replacing vents, drip edge, and fascia hardware. The coastal-spec metalwork costs more now. Skipping it costs more within a decade. Call (855) 382-3237 for a free line-item estimate, not a ballpark.
We Also Serve Cities Near Lomita
Spartan Roof Repair handles Roof Replacement in Lomita and the surrounding South Bay communities including Torrance, Rolling Hills Estates, West Carson, and Carson. If you’re near the Lomita Boulevard corridor or just over the city line, we can assess your roof with the same salt-air spec we use across the 90717 area.
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 Lomita’s marine layer carries salt-laden moisture from the nearby harbor, and that salt air corrodes the metal components of your roof far faster than the shingle surface degrades. The original 1950s galvanized valley flashing on northeast-facing slopes is the first to go. Call (855) 382-3237 and we’ll inspect the metal before we quote the shingles.
Yes. We specify stainless or hot-dip-galvanized fasteners, valley flashing, drip edge, and vents on every Lomita roof replacement because standard electro-galvanized hardware rusts through within a decade in the salt air. It adds $800 – $1,800 to the job and saves a premature re-flash.
Almost always, yes. Those original shallow-pitch roofs trap moisture under spent built-up or early composition shingles, which softens the decking. A patch-over hides the damage and fails again. We’ll show you the decking condition during the estimate so you can see why tear-off is the honest fix. Call (855) 382-3237 to schedule that inspection.
The coastal-spec roof uses marine-grade metalwork: stainless W-valley flashing, hot-dip-galvanized nails, stainless or powder-coated vents, and corrosion-rated drip edge. The inland-spec roof uses standard electro-galvanized hardware and costs less upfront. In Lomita’s salt air, the inland spec starts showing rust and staining within eight to ten years, and you pay to fix it. We quote the coastal spec by default here because we don’t sell roofs designed to fail early.
Look at the hardware spec first. If one bid doesn’t name the fastener, flashing, and vent material grade, it’s an inland-spec bid wearing a Lomita price tag. Then compare decking repair scope, whether ice and water shield is included along valleys and eaves, and whether the quote is line-item or a round number. Then call us at (855) 382-3237 and we’ll walk you through what we’d include and why.
Get Your Lomita Roof Estimate
If your roof is showing rust stains on the fascia, water marks on the ceiling, or shingles that are past their years, don’t guess. Spartan Roof Repair will inspect it, tell you exactly what’s wrong, and give you a written line-item quote with the material and hardware grades named. Call (855) 382-3237 to schedule your free estimate. Built to last, not built to impress.
Written by Brent Calloway, Owner at Spartan Roof Repair, serving Lomita and the South Bay.