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 Repair Across Lomita
Roof repair in Lomita usually runs between $350 and $1,800 depending on what’s actually failing, and most jobs we handle are done in a single day once we’re on the roof. We know Lomita’s houses: small 1940s and 1950s bungalows, low-pitch sections near the old Pacific Electric right-of-way, and fascia that rots from the inside out because of marine-layer moisture. If you’ve noticed a stain on the ceiling or granules in the gutter, call (844) 966-3891 and we’ll send our Roof Repair crew out to look before a small leak becomes a sheathing replacement.

Why Crown Line Roof Repair Is Lomita’s Preferred Roof Repair Company
We built our reputation in Lomita by telling homeowners what’s actually wrong and fixing only what needs fixing. A roof inspection with no strings attached. When a customer near Lomita Park called us about a ceiling stain, the problem wasn’t the shingles at all. It was a vent boot that had cracked after twenty years of salt air exposure. We replaced the boot, charged for the boot, and left the shingles alone. That’s how we work.
Noel Carrasco leads every estimate and walks every roof himself. He grew up working on these older Southern California homes and knows what a 1950s ranch roof in Lomita looks like when it’s been opened up. That matters because what looks like a simple shingle patch from the street often requires a closer look at the decking underneath once we pull the old layer off.
We’re certified to work with seven major shingle manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That means we match what’s already on your roof rather than steering you toward whatever brand we have the deepest discount on. Seven major brands. One honest recommendation.
Styles & brands we work with






Metal Roof Repair in Lomita
Metal roof repair in Lomita typically costs $450 to $1,400, and it’s usually a panel replacement, a seam reseal, or a fastener replacement rather than a full re-roof. Most metal roofs in Lomita are on patio covers, carports, or low-slope sections of 1950s homes near the coast, where the salt air and fog cycle accelerate corrosion at the seams. We work with your roof’s existing materials, not against them.
Seam and Fastener Failures
Metal panels expand and contract with temperature swings, and the marine layer keeps things damp for long stretches. Over time, the neoprene washers under exposed fasteners harden and crack, letting water wick down into the decking. We replace the fasteners, clean and reseal the seams with the right sealant for a coastal climate, and match the panel profile so the repair blends in.
Corrosion at the Crown Line
On older galvanized panels, rust often starts where panels lap at the ridge, which is the exact crown line where two planes meet. We cut out the corroded section, splice in a matching panel, and treat the surrounding metal so the corrosion doesn’t creep back under the new piece. Precision at the crown line, where roofing structure matters most.
Commercial Roof Repair in Lomita
Commercial roof repair in Lomita averages $800 to $2,500 for a typical flat or low-slope leak repair, and we handle small commercial buildings, retail storefronts, and multi-unit residential properties in the 90717 area. The buildings along Lomita Boulevard and Pacific Coast Highway see the same marine-layer moisture as the homes, but their flat roofs hold water longer, so underlayment failure and ponding are more common.
Flat Roof Patching and Drainage
When a flat commercial roof in Lomita starts leaking, the first thing we check is drainage. Leaves, debris, and the low slope allow water to pond, and ponding water is the single fastest way to destroy an underlayment. We patch the membrane, clear the drains, and if needed, add tapered crickets to move water off the roof surface instead of letting it sit.
Tenant-Improvement and Maintain-Your-Roof Work
We also do small commercial jobs for property owners who just need to stop a leak before it gets worse: scuppers, vent boots, roof penetrations around HVAC units, and flashing repairs. It’s a tight, focused service. We don’t do plumbing. We don’t manage commercial TI build-outs. We repair roofs.

Trusted Brands We Service in Lomita
We stock local parts for Lomita jobs and work across seven major manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. So if your 1960s Lomita bungalow has an older CertainTeed shingle, we match it. If the previous owner put an Owens Corning architectural shingle on the rear addition, we match that too. A brand-agnostic contractor means the roof drives the recommendation, not a supply-house quota.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Lomita Homes
- Marine-layer dry rot in fascia and sheathing. Lomita sits on the foggy coastal side of the Palos Verdes Peninsula’s base, so roofs stay damp for long stretches. Probes during tear-off often reveal soft decking that a street-side look never caught.
- Underlayment failure on shallow-pitch sections near the old Pacific Electric right-of-way. These low-lying flat streets get ponding that the sunnier hill streets up toward the Peninsula never see, and the underlayment degrades into a gummy sheet that lets water wick into the decking.
- Undersized original rafters on 1940s and 1950s bungalows. A permit triggers code upgrades, and we often find framing that needs sistering before new shingles can go on. It’s not a surprise we can’t handle; it’s a surprise we price in writing before we touch it.
- Flashing failures after Santa Ana wind events. The occasional Santa Ana blows grit and debris under the flashing at chimneys and roof-to-wall transitions. Once the flashing lifts, water finds the gap.
Pricing for Roof Repair in Lomita, CA
Here’s what Lomita homeowners typically pay, based on the jobs we’ve done across the 90717 area:
- Leak repair: $350 – $700
- Shingle replacement (partial): $400 – $1,000
- Flashing repair: $500 – $1,200
- Flat roof patch: $600 – $1,500
- Vent boot replacement: $350 – $750
- Valley repair: $700 – $1,800
- Metal roof repair: $450 – $1,400
- Framing or decking repair (if needed): $1,000 – $3,000
What moves the price is what we find once the old layer comes off, especially on a 1950s Lomita bungalow. Soft decking, undersized rafters, degraded underlayment: we price those in writing before we touch them. Call (844) 966-3891 for a free estimate and a written, line-item quote.
We Also Serve Cities Near Lomita
Crown Line Roof Repair works across Lomita and the surrounding South Bay cities. We regularly take calls from homeowners in Torrance, Rolling Hills Estates, West Carson, and Manhattan Beach. Same phone, same crew, same repair-first approach.
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 Repair in Lomita
Because Lomita’s marine layer keeps sheathing damp for months at a time and most homes are 1940s and 1950s builds with original wood-framed roofs. Once we pull the old shingles, soft decking that was invisible from the street often shows up, and a permit triggers code upgrades on the undersized rafters. We price that work in writing before we touch it. Call (844) 966-3891 and we’ll walk you through what your specific roof is likely to need.
Underlayment fails there because those low-lying streets have shallow-pitch roofs that pond water, and Lomita’s morning fog keeps things damp. On a 1952 ranch near the old Pacific Electric right-of-way, our crew opened a low-pitch section and found the ice and water shield had degraded to a gummy sheet, with water ponding above it because the original framing had settled. We replaced the decking, added a tapered cricket to shed water, and installed CertainTeed Flintlastic underlayment before new architectural shingles. The framing repair was priced in writing before we started.
A permit is generally required in Lomita when we’re replacing decking, modifying the roof structure, or replacing more than a small patch of shingles. The code upgrade we see most often is sistering or strapping undersized original rafters, especially on 1940s and 1950s bungalows. If your roof needs a permit, we pull it, and the inspection is part of the job. Call (844) 966-3891 to schedule a roof inspection and find out where your roof stands before any work starts.
Ask both contractors to give you a written line-item quote separated by material and labor, not a single bottom-line number. Then ask what happens if the decking is soft once the old shingles come off. A straight answer means the contractor has opened a Lomita roof before. A vague one means the quote likely assumes nothing goes wrong, which is rare on a 1950s home. We write allowances into our contracts for exactly this.
After a Santa Ana, look for lifted shingle corners, granules collecting in the gutters, and any flashing that’s pulled away at chimneys or roof-to-wall transitions. On Lomita’s older homes, the underlayment may already be thin, so even a small wind-lift can let water in. The fix is usually $500 to $1,200 for flashing and shingle repair if you catch it early. Call (844) 966-3891 for a roof check after the wind dies down; an inspection is a standalone service, and there’s no obligation attached to the report.
Written by Noel Carrasco, Owner at Crown Line Roof Repair, serving Lomita and the South Bay.