Lawndale is a small South Bay city with a practical character — modest single-family homes and small multifamily buildings, most of them mid-century, in a community where people improve what they own rather than trading up. It’s the kind of place where a straight-talking contractor who shows up and does the work earns customers for life.
Practical doesn’t mean simple, though. A Lawndale bathroom remodel still involves plumbing, and a kitchen expansion still needs HVAC and structural work coordinated — which is where single-trade hiring falls apart. Mars Construction Industries Corp holds four CSLB classifications in-house — A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC) — so even a modest project gets one licensed, bonded, and insured team handling every trade, with a written proposal up front.
Construction & Remodeling Services in Lawndale, CA
Our residential work in Lawndale centers on the projects mid-century homes need most: kitchen and bathroom remodels, room additions, and whole-home updates. Because our plumbing and HVAC crews are in-house, we routinely pair finish work with mechanical renewal — repipes for aging galvanized lines, sewer lateral inspection and repair, and HVAC replacement — so you’re not opening walls twice.
Small multifamily buildings are common here, and we serve those owners too: unit renovations, repipes, water heater systems, and common-area plumbing. Our 911 Drain Lines division handles the underground side — camera inspection, hydro jetting, and trenchless sewer repair with a 20-year warranty on lining — for homes and small apartment buildings alike.
ADUs are a natural fit for Lawndale’s lots. Through our sister brand ADU Cities, we’ve delivered more than 100 accessory dwelling units in four years — garage conversions and detached backyard units that add housing for family or income, built start to finish by one team.
- Kitchen and bathroom remodels
- Room additions and whole-home updates
- Small multifamily renovations and unit turnovers
- Repipes, water heaters, and gas lines
- ADUs and garage conversions 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
- Drain and plumbing repairs through 911 Drain Lines
Why Lawndale Property Owners Choose Mars
Lawndale homeowners want honest work at a fair scope. That’s the entire model:
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 Lawndale and Los Angeles County
Lawndale sits in Los Angeles County, and we serve it regularly from our Orange County home base. We serve Lawndale and the surrounding South Bay communities — Hawthorne, Gardena, Torrance, Redondo Beach, and beyond — 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.
Our home needs both a remodel and plumbing work. Can you do it as one project?
That’s our standard approach. We scope the remodel and the mechanical work together in one written proposal — repipe, sewer, and HVAC alongside the kitchen or bath — so walls open once and one crew sequence handles it all. It costs less in disruption than doing them separately.
How does your estimate process work?
We start with a walkthrough of the property, listen to what you want to accomplish, and then put together a written proposal with clear, combined labor-and-material pricing. You get one document from one company covering the construction, plumbing, and HVAC scope — not three separate bids you have to reconcile yourself. There’s no obligation, and we’ll tell you straight if a project doesn’t make sense.
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.