El Segundo runs on two economies that rarely share a contractor: the aerospace and tech corridor demanding precise, schedule-driven commercial work, and the beach-adjacent residential neighborhoods of small-lot homes and cottages needing thoughtful remodels. Most contractors serve one world or the other. The companies that thrive here serve both — with the licensing to back it up.
Mars Construction Industries Corp runs that dual track, backed by 30+ years of hands-on experience. Four CSLB licenses in-house — A General Engineering, B General Building, C-36 Plumbing, C-20 HVAC (Lic. #1138550) — let us build out a tech office on one street and remodel a beach cottage on the next, with our own licensed crews on the building, plumbing, and mechanical work. One accountable team, licensed, bonded, and insured, serving both sides of El Segundo’s economy.
Construction & Remodeling Services in El Segundo, CA
On the commercial side, aerospace, tech, and creative offices generate constant TI demand — and TI lives or dies on coordination. Our C-36 crews handle restroom rough-in, break-room plumbing, and specialty water lines in-house; our C-20 crews handle the HVAC modifications office reconfigurations always require. Both trades ours means the mechanical work stays on our schedule, and our B license covers the full interior build-out with the bonding commercial landlords expect. Residentially, small-lot homes reward smart design over square footage: kitchens and baths that make compact plans live large, and ADUs — 100+ through ADU Cities — turning garages and backyards into valuable space.
Coastal exposure shapes the systems work: HVAC and plumbing equipment selected for salt air, sized by our C-20 crews for small homes. And we camera-inspect older laterals before you commit to a remodel — discovering a failing sewer line mid-project is the most expensive surprise in construction, and an inspection is the cheapest insurance. Trenchless lining carries our 20-year warranty.
- Office and tech tenant improvement — coordinated build-outs with in-house plumbing and HVAC.
- Small-lot home remodels — kitchen and bath renovations for compact beach-adjacent floor plans.
- ADUs and garage conversions — via our ADU Cities team.
- Coastal HVAC replacement and repair — C-20 crews selecting equipment for salt-air exposure.
- Repipes, water heaters, and gas lines — by licensed C-36 plumbing crews.
- Sewer camera inspection and trenchless lining — video diagnosis; 20-year warranty.
- Structural and building work — additions and reconfigurations under our A and B licenses.
Why El Segundo Property Owners Choose Mars
Most projects don’t fail because of one bad trade — they fail in the gaps between trades. Mars Construction Industries Corp was built to eliminate those gaps. We hold four CSLB licenses in-house — A General Engineering, B General Building, C-36 Plumbing, C-20 HVAC (Lic. #1138550) — so the engineering, building, plumbing, and mechanical work on your project all answer to one accountable team.
One estimate covers the whole scope. One project manager runs the schedule. And when something unexpected turns up behind a wall in El Segundo, our plumber and our carpenter already work for the same company — work doesn’t stall while you hunt for another contractor.
With 30+ years of hands-on experience and based in Orange, California, we’re licensed, bonded, and insured, with SB-PW and SB(Micro) certifications. Our sister brands — 911 Drain Lines, ADU Cities, Get Your Roof Certified, Universal Inspect — cover a property’s full life, and our trenchless sewer lining carries a 20-year warranty. One call, one team, one throat to choke.
Proudly Serving El Segundo and Los Angeles County
El Segundo sits on LA County’s south bay, well within our roughly 50-mile radius from Orange County — our crews run the 405 corridor regularly. Commercial build-out near the aerospace corridor or cottage remodel near the beach: same four-license team, same single point of accountability. Call 310.880.9718.
Frequently Asked Questions
Do you handle every trade in-house?
The trades that matter most — building, plumbing, HVAC — are our own licensed crews under CSLB #1138550. For specialty scopes outside our four licenses, we bring in vetted specialists and manage them. Either way, you deal with one accountable team and one point of contact.
Do you take on commercial work?
Absolutely — offices, retail, restaurants, and light industrial/warehouse interiors. We’re licensed, bonded, and insured for commercial work with SB-PW and SB(Micro) certifications, and in-house plumbing and HVAC keep TI schedules tight.
What areas do you serve?
We’re based in Orange, California, working within roughly a 50-mile radius across Orange County, LA County, and the Inland Empire. El Segundo is squarely in our service area — our crews are in Los Angeles County regularly.
We’re planning an office build-out with a fixed move-in date. How do you protect the schedule?
By controlling the critical path. TI delays almost always come from plumbing rough-in and HVAC modifications — both our own in-house crews, under one project manager. We’ll walk the space, identify long-lead items early, and give you a written sequence planned backward from your move-in date. Tell us the date that can’t move and we’ll tell you honestly what it takes.
Get a Straight Answer on Your Project
Remodel, addition, repipe, new HVAC, or commercial build-out in El Segundo — talk to the contractor who can do all of it. Call Mars Construction Industries Corp at 310.880.9718 or email brett@marsx.construction. We’ll give you a straight assessment and a detailed written estimate. Our office: 1119 W. Collins Ave, Orange, CA 92867.
Plumbing or drain emergency? Our sister brand 911 Drain Lines answers around the clock at 714.746.7611.
One accountable team. Four licenses. With 30+ years of hands-on experience. That’s Mars.