San Fernando is a small, historic city in the San Fernando Valley — one of the Valley’s oldest communities, with a housing stock that reflects it. Many homes here were built decades ago and are now at the age where plumbing systems, sewer laterals, water heaters, and gas lines need real attention. The commercial corridors have the same vintage character, with small businesses operating in older buildings that need practical tenant improvements. In a city like this, the most valuable contractor is one who can handle both the visible remodel and the infrastructure behind it — because in older buildings, the two almost always come together.
Mars Construction Industries Corp is a multi-trade general contractor based in Orange, CA, operating with 30+ years of hands-on experience. We hold four CSLB licenses in-house — A General Engineering, B General Building, C-36 Plumbing, and C-20 HVAC (CSLB #1138550). One accountable team covers your construction, plumbing, drain and sewer work, and HVAC, so a San Fernando project doesn’t get split across contractors who don’t talk to each other.
Construction & Remodeling Services in San Fernando, CA
Aging infrastructure is the through-line in our San Fernando work. We perform full repipes, water heater replacements, and gas line work — in-house under our C-36 plumbing license — and we pair that work with kitchen and bathroom remodels so homeowners address the pipes and the finishes in one project instead of two. Opening walls once instead of twice saves real money and disruption.
Sewer and drain work is equally common in older neighborhoods. We offer camera inspection to see exactly what’s happening underground, hydro jetting to clear lines, and trenchless sewer repair that rehabilitates a failing lateral without tearing up the yard or driveway. Our sewer lining carries a 20-year warranty. For a homeowner facing a sewer problem, that combination — accurate diagnosis, minimal digging, long warranty — is the whole ballgame.
We also handle additions and ADUs, which make sense on San Fernando’s residential lots for multigenerational families. Through our sister brand ADU Cities, we’ve built more than 100 ADUs in four years. And for the city’s small businesses, we do commercial tenant improvement — practical build-outs and renovations for retail, office, and restaurant spaces in older commercial buildings, including the plumbing and HVAC work those buildings so often need.
- Repipes, water heaters, and gas lines
- Drain and sewer services: camera inspection, hydro jetting, trenchless repair, sewer lining (20-year warranty)
- Kitchen and bathroom remodels
- Room additions and whole-home renovations
- ADUs — 100+ built in four years through ADU Cities
- HVAC installation, replacement, and repair
- Commercial and tenant improvement for retail, office, and restaurant spaces
Why San Fernando Property Owners Choose Mars
One accountable team. That’s our model: A, B, C-36, and C-20 licenses in-house, so the construction, plumbing, sewer, and HVAC on your project are all done by us under one contract. We’ve been operating with 30+ years of hands-on experience, we’re licensed, bonded, and insured (CSLB #1138550), and we’re SB-PW and SB(Micro) certified. In a city of older homes and older commercial buildings, that matters — because the job is rarely just the remodel or just the repipe. It’s both, and one team should own both. Our sister brands — 911 Drain Lines, ADU Cities, Get Your Roof Certified, and Universal Inspect — extend what a single call covers.
Proudly Serving San Fernando and Los Angeles County
San Fernando is in the northeastern San Fernando Valley in Los Angeles County, within our service area. Our home base is at 1119 W. Collins Ave, Orange, CA 92867, and we serve Valley communities within roughly a 50-mile radius. Homeowners and small businesses here get the same licensed, multi-trade team.
Frequently Asked Questions
Do I need a licensed contractor for my project?
In California, any construction project totaling $1,000 or more in labor and materials must be performed by a licensed contractor. Always verify a license on the CSLB website before hiring. Ours is CSLB #1138550 — A General Engineering, B General Building, C-36 Plumbing, and C-20 HVAC.
How does your estimate process work?
We visit the property, walk through the project with you, and provide a written estimate. In older homes, we pay close attention to plumbing, sewer, and HVAC conditions so the estimate covers the real scope — not just the visible finishes.
My home needs both a repipe and a remodel. Can you do both?
Yes — that’s exactly what our license structure is built for. Our B license covers the construction and our C-36 covers the plumbing, so the repipe and the remodel happen as one coordinated project under one contract.
Do you handle plumbing or sewer emergencies?
Yes. Our sister brand 911 Drain Lines provides 24/7 drain and plumbing emergency service at 714.746.7611 — for backups, burst lines, and failed water heaters.
Do you do commercial work?
Yes. We handle tenant improvement and renovations for small commercial buildings — retail, office, and restaurant spaces — including the plumbing and HVAC upgrades older buildings typically need.
Get a Straight Answer on Your Project
Whether it’s aging pipes, a failing sewer line, a remodel, or a commercial build-out, tell us what you’re dealing with and we’ll give you a straight answer. Call 310.880.9718 or email brett@marsx.construction. One accountable team, four licenses in-house, operating with 30+ years of hands-on experience.