Norwalk is a classic southeast suburb of 1950s tract homes — solid, modest houses on decent lots, now more than 70 years old. Like every postwar neighborhood, Norwalk’s homes are hitting the same milestone at the same time: original galvanized water lines, cast-iron sewer laterals, and floor plans designed for a different era of family life.
That milestone is exactly when a multi-trade contractor matters most. A Norwalk kitchen remodel that ignores the galvanized pipe behind the walls is a remodel you’ll redo; a bathroom addition that doesn’t address the sewer lateral is asking for trouble. 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 cosmetic work and the mechanical renewal happen as one project, managed by one team.
Construction & Remodeling Services in Norwalk, CA
Whole-house repipes are core work for us in Norwalk. Our C-36 plumbing crews replace aging galvanized and cast-iron systems with modern piping — and because we’re also your remodeling contractor, we coordinate repipes with kitchen and bath renovations so walls open once. Water heaters, gas lines, and fixture upgrades ride along with the same crew.
Sewer laterals get the 911 Drain Lines treatment: camera inspection with footage you can see yourself, hydro jetting to clear roots and buildup, and trenchless repair where the pipe qualifies — our sewer lining carries a 20-year warranty. In a neighborhood where every lateral is the same age, proactive inspection beats emergency excavation.
For the living space, we remodel kitchens and baths for modern family life, build room additions, and construct ADUs. Through our sister brand ADU Cities, we’ve delivered more than 100 accessory dwelling units in four years — garage conversions and detached backyard units on Norwalk’s lots. Our C-20 crews handle HVAC replacement for systems past their prime.
- Whole-house repipes replacing original galvanized plumbing
- Kitchen and bathroom remodels for 1950s tract homes
- 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 Norwalk Property Owners Choose Mars
In a tract neighborhood, the houses age together — and the smart owners fix systems and finishes together. Here’s our 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 Norwalk and Los Angeles County
Norwalk sits in Los Angeles County, and we serve it regularly from our Orange County home base. We serve Norwalk and the surrounding southeast Los Angeles County communities — Downey, Santa Fe Springs, Cerritos, Artesia, and beyond — 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 Norwalk home still has original 1950s plumbing. Do you repipe?
Yes — whole-house repipes are one of our core services in postwar neighborhoods. We replace galvanized and cast-iron systems with modern piping, and we recommend pairing the repipe with any planned kitchen or bath remodel so walls open once. Our C-36 crews do the work in-house.
How do I know if my sewer lateral is failing?
Slow drains throughout the house, recurring backups, gurgling fixtures, or lush patches in the yard all warrant a camera inspection. We run a camera through the line, show you the footage, and recommend repair only if it’s justified. Trenchless lining where applicable carries a 20-year warranty.
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.