Lomita sits in the harbor area with a small-town feel — older single-family homes, many dating to the mid-20th century, on quiet residential streets a few miles from the ports. It’s an unpretentious community where the housing stock is aging honestly: original plumbing, original sewer laterals, and HVAC systems that have been replaced piecemeal over the years.
Aging housing stock is where a multi-trade contractor earns its keep. Opening up a Lomita bathroom for a remodel and finding corroded galvanized pipe behind the tile is routine — the question is whether your contractor can fix it or has to call someone else. Mars Construction Industries Corp holds four CSLB classifications in-house — A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC) — so the crew that finds the problem is the crew licensed to solve it.
Construction & Remodeling Services in Lomita, CA
Our core work in Lomita is the older-home renewal: kitchen and bathroom remodels paired with the mechanical work these houses need — full repipes, water heater replacement, gas lines, and HVAC install or replacement. Doing it as one project with one team means one schedule and one written proposal instead of coordinating separate trades around each other.
Sewer lines deserve special attention in neighborhoods of this era. Our 911 Drain Lines division camera-inspects laterals and shows you the footage, clears root intrusion and buildup with hydro jetting, and repairs trenchlessly where the pipe qualifies — our sewer lining carries a 20-year warranty. For harbor-area homes with mature trees, root intrusion is one of the most common issues we find.
We also build room additions and ADUs for Lomita’s lots. Through our sister brand ADU Cities, we’ve delivered more than 100 accessory dwelling units in four years — garage conversions and detached units built start to finish by the same accountable team.
- Kitchen and bathroom remodels for older homes
- Full repipes replacing galvanized and cast-iron systems
- Room additions and ADUs via ADU Cities (100+ built in four years)
- Sewer camera inspection, hydro jetting, and trenchless repair with a 20-year lining warranty
- HVAC install, replacement, and repair
- Water heaters, gas lines, and fixture upgrades
- Whole-home renovations
- Drain and plumbing repairs through 911 Drain Lines
Why Lomita Property Owners Choose Mars
Older harbor-area homes hide their problems behind the walls. Here’s why Lomita owners want one team opening those walls:
Mars Construction Industries Corp is a general contractor backed by 30+ years of hands-on experience, based in Orange, California. We are licensed, bonded, and insured, holding four CSLB classifications in-house under license #1138550: A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC). We are also SB-PW and SB(Micro) certified.
That means one accountable team. Most projects cross trades, and that is where jobs stall — the plumber blames the framer, and you are left managing people who do not work for you. With Mars, the general contractor, the plumbing crew, and the HVAC crew are the same company: one estimate, one schedule, one phone number, and no gaps between trades.
Proudly Serving Lomita and Los Angeles County
Lomita sits in Los Angeles County, and we serve it regularly from our Orange County home base. We serve Lomita and the surrounding harbor-area communities — Torrance, Harbor City, San Pedro, and the South Bay — working across Los Angeles County from our Orange County base.
Frequently Asked Questions
Is Mars Construction Industries Corp licensed for this work?
Yes. We operate under CSLB license #1138550 with four classifications in-house: A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC). We are licensed, bonded, and insured, and we hold SB-PW and SB(Micro) small-business certifications. You can verify any contractor’s license status through the Contractors State License Board before you sign anything — and you should.
My home has mature trees. Should I worry about my sewer line?
It’s worth a camera inspection. Tree roots seek out moisture in sewer laterals, and older clay or cast-iron lines are especially vulnerable. We run a camera through the line and show you exactly what we see — if roots or breaks show up, we can clear them with hydro jetting and discuss trenchless repair options, including lining with a 20-year warranty.
Can you update my plumbing without tearing the whole house apart?
Repipes are planned to minimize disruption — we map the runs, open strategic access points, and coordinate patching as part of the same project. Pairing a repipe with a kitchen or bath remodel is the most efficient way to do it, since walls are opening anyway.
Do you subcontract everything out?
No. We self-perform across our four licensed classifications — general construction, plumbing, drain and sewer, and HVAC — which covers the bulk of most residential and commercial projects. For work outside our classifications, such as electrical, we coordinate properly licensed subcontractors and stay accountable for their work as your general contractor. You still deal with one team.
Get a Straight Answer on Your Project
Planning a remodel, an addition, an ADU, or just need a straight answer about a plumbing or HVAC problem? Talk to a contractor that can do it all. Call Mars Construction Industries Corp at 310.880.9718 or email brett@marsx.construction for a walkthrough and a written proposal. One team, four licenses, and an answer you can build on.
Plumbing or drain emergency? Our sister brand 911 Drain Lines answers around the clock at 714.746.7611.