Pomona is one of the San Gabriel Valley’s oldest cities — a historic downtown with early-20th-century commercial buildings, the Fairplex drawing regional crowds, Cal Poly Pomona anchoring the east side, and residential neighborhoods spanning historic homes to postwar tracts. It’s a city of layers, and each layer needs a different kind of contractor.
That variety is where a multi-trade general contractor earns its keep. A historic downtown storefront needs a careful buildout; a 1920s home needs plumbing renewal behind a sensitive renovation; a rental near campus needs durable, fast-turnaround updates. Mars Construction Industries Corp holds four CSLB classifications in-house — A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC) — so one licensed, bonded, and insured team can take on the storefront, the historic home, and the rental with equal accountability.
Construction & Remodeling Services in Pomona, CA
Downtown and commercial Pomona gets our tenant improvement work: retail, office, and restaurant buildouts with plumbing, gas lines, and HVAC performed by our own licensed crews and phased to keep businesses operating. Our written proposals put the full scope in one document — no reconciling bids across trades.
In the historic residential neighborhoods, we renovate older homes with architectural sensitivity — kitchen and bath remodels, additions matched to the original home, and full mechanical updates. Our C-36 crews handle repipes and our 911 Drain Lines division covers sewer camera inspection, hydro jetting, and trenchless repair with a 20-year warranty on lining — critical work in neighborhoods with mature trees and old lines.
For Pomona’s rental market and multigenerational households, we do durable unit renovations and ADUs. Through our sister brand ADU Cities, we’ve delivered more than 100 accessory dwelling units in four years — garage conversions and detached units built start to finish. Our C-20 division handles HVAC install, replacement, and repair across all of it.
- Commercial tenant improvement — retail, office, restaurant
- Historic home renovations with architectural sensitivity
- Kitchen and bathroom remodels and room additions
- Rental unit renovations and turnovers
- Full 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
Why Pomona Property Owners Choose Mars
A city of layers needs a contractor with range. Here’s the one-team model Pomona 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 Pomona and Los Angeles County
Pomona sits in Los Angeles County, and we serve it regularly from our Orange County home base. We serve Pomona and the surrounding eastern San Gabriel Valley and Inland Empire edge — Claremont, La Verne, San Dimas, Chino, and beyond — from our Orange County base. Inland Empire projects can also reach us at 909.325.0020.
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.
We own rental property near Cal Poly. Can you handle turnovers and bigger repairs?
Yes. We do unit renovations and turnovers plus the bigger-ticket work rentals eventually need — repipes, sewer lines, water heaters, and HVAC — all with our own crews. One call covers the cosmetic refresh and the mechanical systems behind it.
Our home is historic. Will a remodel ruin its character?
No. We match architectural details on additions and concentrate modernization in the systems and spaces where it belongs — plumbing, HVAC, kitchens, baths, and floor plans. The street keeps its character; you get a house that works.
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.