Architectural shingles
Metal roofing
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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 $1,400 for targeted fixes like shingle replacement, flashing repair, or a flat-roof patch, with most jobs completed in a single day. We are Select Roof Repair, and we work exclusively on roofs across the 90717 zip code. If you have a stain spreading across your ceiling or moss growing on a north-facing slope, call (855) 382-0485 and we will send someone who knows Lomita roofs, not a generalist who happens to carry a ladder.

Lomita is a small, fully built-out South Bay city perched on the Palos Verdes Peninsula’s edge. The housing stock is mostly 1940s-1960s postwar tract homes on tight lots, many still carrying their original low-slope or shallow-pitch roofs. Add in the marine layer that rolls in off Santa Monica Bay nearly every night, and you get a very specific failure pattern: chronic moisture working into decking, not dramatic wind damage. That is the work we do most here.
Why Select Roof Repair Is Lomita’s Preferred Roof Repair Company
Our team has spent years opening up Lomita roofs on homes off Lomita Boulevard, Narbonne Avenue, and the side streets around 90717. What we have learned is that the visible problem is rarely the whole problem. A lifted shingle near a valley might sit above rotted underlayment. A small ponding stain on a flat section often means soft sheathing underneath. Our Roof Repair crews plan for what they will find once the roof is open, and we price the visible fix honestly while writing allowances for what the tear-off might expose.
Noel Carrasco, our lead, has trained the crew to treat Lomita’s marine-layer condensation as the first suspect, not the last. That focus comes through in the diagnosis: we check north-facing slopes for moss and algae, we probe low spots on flat sections for ponding, and we look at drip edge and valley metal for salt-air corrosion. When a repair makes sense, we fix it and stand behind the work. When the decking or framing is too far gone, we tell you and show you photos. Roofing only, done right.
Styles & brands we work with






Commercial Roof Repair in Lomita
Commercial Roof Repair in Lomita follows the same pattern as residential work here, but on a larger scale: low-slope membrane roofs over older commercial buildings along Lomita Boulevard and Narbonne Avenue that collect condensation and ponding water during the nightly marine layer. Flat and low-pitch commercial roofs in this area tend to fail at seams, penetrations, and drains first. A typical commercial patch or membrane repair runs $750 to $3,500 depending on square footage, membrane type, and how much decking has to be cut out and replaced.
Flat Membrane Repair on Older Lomita Buildings
The low-slope commercial stock in Lomita dates mostly from the 1960s and 1970s. These roofs were built with modified bitumen or built-up systems that have now outlived their design life. We cut out failed membrane, inspect the insulation and decking below, and re-cover with a compatible product from manufacturers like GAF or Tamko. The goal is a repair that lasts through cycles of damp nights and dry afternoons, not one that peels at the first UV spike.
Drainage and Ponding Corrections
Chronic ponding is the quiet killer of Lomita commercial roofs. When water sits in a low spot, the membrane degrades faster and the decking softens. We identify the low areas, repair the failed material, and where practical add taper or adjust the drain so water moves off instead of camping on the roof. Every repair gets documented with before and after photos so you can see exactly what was fixed.
Roof Leak Repair in Lomita
Roof Leak Repair in Lomita usually starts the same way: a homeowner spots a watermark on the ceiling, often on the north side of the house, and calls us. What we find most of the time is not a missing shingle but a slow, persistent moisture path from marine-layer condensation that has worked through failed underlayment. Leak repairs here run $350 to $1,200 for the typical case, but the honest discussion happens once we trace the moisture. If the decking is soft or the framing around a penetration has rotted, the repair scope changes.
Tracing the Real Source
Lomita’s damp, foggy nights mean water travels. A ceiling stain under the eave might originate at a low spot eight feet away. We spend the time to find the true entry point, not just caulk the first gap we see. On low-slope roofs, that means checking every penetration, every seam, and the underside of the decking where condensation collects.
Opening the Roof to Fix It Right
When a leak has been running for a while, the repair is never just the surface. We open the roof at the leak site, inspect the substrate, and replace any wood that has lost its integrity. Then we lay new underlayment and rebuild the flashing before re-covering. It costs a bit more than a surface patch, but it is what stops the same stain from coming back in the next marine-layer cycle.

Trusted Brands We Service in Lomita
We install and repair roofs using products from seven leading manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. For Lomita customers, that matters in practical terms. A low-slope tract roof that stays damp at night wants a different product than a sun-scorched inland roof. We match the material to the house and the climate, not to whatever we have sitting in the yard. Atlas and Tamko both make excellent self-adhered underlayments that hold up well under coastal moisture. Boral’s clay and concrete tile work well on the Spanish-style stucco homes that dot Lomita’s older streets. Because we are brand-flexible, the recommendation is driven by the job.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Lomita Homes
- Ponding stains and moss on north-facing slopes. The nightly marine layer saturates the air, and on low-pitch roofs that moisture never fully dries. Moss takes hold on shaded slopes, and the ponding stains reveal where water is sitting against the membrane every night.
- Soft decking hidden under intact shingles. The surface looks fine. The wood under it is spongy. This is the most common discovery we make on 1940s-1960s tract homes in 90717, and it is why a simple shingle patch sometimes becomes a decking replacement.
- Failed underlayment at roof penetrations. Vents, plumbing stacks, and old antenna mounts are the weak points on Lomita roofs. Condensation follows the penetration down into the framing and rots it from the inside out.
- Corroded drip edge and valley metal. Salt-laden onshore air eats metal over decades. We see drip edges that flake apart when touched and valleys that have rusted through, leaving a straight path for moisture at the roof’s edges.
Pricing for Roof Repair in Lomita, CA
Here are the actual numbers for Lomita’s market. Shingle replacement runs $350 to $800 for a standard repair. Flashing repair at a chimney, wall, or penetration costs $400 to $1,100. Flat roof patches run $500 to $1,400 depending on membrane type. Vent boot replacement is $250 to $500. A valley repair runs $450 to $1,200. The variables that move your quote: whether the roof is one layer or two, whether the decking underneath is sound, and how much staging room the lot allows. We write every quote with line items and a written allowance for hidden damage, so you never get a surprise change order without a signed approval from you first. Call (855) 382-0485 for a free estimate.
We Also Serve Cities Near Lomita
Our Lomita customers often refer us to neighbors in Torrance, Rolling Hills Estates, West Carson, and Carson. The failure patterns are similar – marine-layer moisture, aging postwar tract roofs, and tight lots with limited staging room. We serve the full South Bay area with the same roof-only focus.
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
The marine layer is the culprit. Every night, fog and dew roll in off the Santa Monica Bay and settle on your roof. On a low-slope or flat roof, that moisture pools in low spots and never fully dries because the north side gets little direct sun. Moss grows, and the stains you see are where water is sitting against the membrane every single night. The fix usually involves correcting the drainage and replacing the saturated section, not just killing the moss. Call (855) 382-0485 and we will inspect it.
It is normal on Lomita homes, but it should never be a surprise. On a 1950s tract home off Lomita Boulevard, our crew traced an interior ceiling stain to ponding at a low spot where the old flat membrane had checked and the underlayment beneath it had failed. Once we opened the decking, we found soft sheathing and undersized framing around a penetration. That added scope is what a written allowance is for. We price the visible fix upfront, and any hidden damage gets documented, photographed, and priced in writing before we proceed. You approve it or you do not. We never proceed on an open ticket.
Yes, and on homes built in the 1940s-1960s it is more common than people expect. If we open the roof and find structural issues, the building department may require corrections to meet current code. That could mean adding collar ties, upgrading nailing patterns, or replacing damaged rafters. We pull permits on work that requires them, and we write allowances into the contract so the inspection findings do not blindside you. The permit process in Lomita is predictable, and we know what the inspectors here look for.
Yes. We do commercial roof repair on low-slope and flat commercial buildings throughout Lomita, including aging strip centers and office buildings along Lomita Boulevard and Narbonne Avenue. The work is the same discipline: cut out the failed membrane, inspect what is underneath, and re-cover with a product matched to the building’s exposure. Commercial repairs are priced per square foot and per membrane type, typically $750 to $3,500 for a targeted fix. Estimates are free.
Small lots are the norm in Lomita, not the exception. Many homes have side yards that barely fit a trash bin, no driveway access to the back, and neighbors within arm’s reach. We stage materials on the street where permitted or in the driveway, hand-carry materials around the house, and work in sections so the roof is never fully exposed at once. We also protect landscaping and clean up every evening. A tight lot adds a bit of labor time, but we plan for it from the first estimate, not on day one of the job.
Written by Noel Carrasco, Owner at Select Roof Repair, serving Lomita and the South Bay.
If you need a straight answer about your Lomita roof, call (855) 382-0485. We will come out, inspect, and tell you what is actually going on. Start with an inspection, then decide.