Monterey Park is the commercial and cultural hub of the western San Gabriel Valley — busy corridors along Garvey and Atlantic, mid-century neighborhoods on the hillsides, and a community where multigenerational households are the norm rather than the exception. Property here works hard: homes shelter extended families, and storefronts serve the whole region.
Hardworking properties need a contractor that coordinates. A Monterey Park restaurant buildout needs plumbing, gas, and HVAC in lockstep; a multigenerational home addition needs structural work plus extended mechanical systems. Mars Construction Industries Corp holds four CSLB classifications in-house — A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC) — so commercial and residential projects alike get one accountable team instead of a chain of subs.
Construction & Remodeling Services in Monterey Park, CA
Commercial tenant improvement is a major part of our Monterey Park work: restaurant, retail, and office buildouts with plumbing, gas lines, and HVAC performed by our own licensed crews. For operating businesses along the city’s busy corridors, we phase construction so doors stay open — and our written proposals put the full scope in one document instead of three separate bids.
For homeowners, we handle the projects multigenerational living demands: room and bathroom additions, whole-home renovations, and kitchen and bath remodels. Our C-36 crews perform repipes and water heater and gas line work in-house, and our C-20 division handles HVAC install, replacement, and repair — including systems sized for larger households and expanded footprints.
ADUs are a natural fit here. Through our sister brand ADU Cities, we’ve delivered more than 100 accessory dwelling units in four years — detached units, garage conversions, and attached additions that give family members independence on the same lot. And 911 Drain Lines covers sewer camera inspection, hydro jetting, and trenchless repair, with a 20-year warranty on lining.
- Commercial tenant improvement — restaurant, retail, office
- Room and bathroom additions for multigenerational households
- Whole-home renovations and kitchen/bath remodels
- ADUs and garage conversions via ADU Cities (100+ built in four years)
- Repipes, water heaters, and gas lines
- 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 Monterey Park Property Owners Choose Mars
From Garvey Avenue storefronts to hillside family homes, here’s the one-team model Monterey Park gets:
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 Monterey Park and Los Angeles County
Monterey Park sits in Los Angeles County, and we serve it regularly from our Orange County home base. We serve Monterey Park and the surrounding San Gabriel Valley — Alhambra, San Gabriel, Rosemead, Montebello, 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.
Can you build out our restaurant while minimizing downtime?
Yes. We phase restaurant and retail buildouts — working nights, weekends, or section by section — so you can keep serving customers. Because our plumbing, gas, and HVAC crews are in-house, the critical-path trades stay on our schedule, not someone else’s.
Our household keeps growing. Addition or ADU — how do we decide?
Walk the property with us and we’ll lay out both honestly. Additions integrate with the house; ADUs offer more independence for relatives. Either way, one team handles the construction, plumbing, and HVAC under a single proposal.
Do you do commercial and tenant improvement work?
Yes. We build out offices, retail spaces, restaurants, and light industrial interiors, and we handle the plumbing and HVAC scope in-house rather than handing it off. For operating businesses, we plan the work in phases so you can stay open while we build.
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.