Wildomar is southwest Riverside County’s growth story — one of the region’s newer cities, filled with young families already outgrowing their homes. The pattern is familiar: the starter home needing a primary suite, the floor plan that doesn’t fit a growing household, the garage that could become living space for grandparents. These are whole-project problems, and they deserve a whole-project contractor.
Mars Construction Industries Corp has been that contractor, 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) — so your Wildomar addition, ADU, or full remodel runs through one licensed, bonded, and insured team. One estimate covers the framing, plumbing, and HVAC. One project manager coordinates it all.
Construction & Remodeling Services in Wildomar, CA
Additions are the signature Wildomar project. Families who love their neighborhood but need another bedroom, a bigger kitchen, or a home office don’t want to move — they want more house. Our A and B crews engineer and build the addition while our C-36 plumbers run the new bath rough-in and our C-20 crews extend the HVAC properly, all on one schedule. ADUs are the other major call — 100+ built in four years through ADU Cities — detached units and garage conversions for multigenerational living or rental income, as a single design-build package.
Wildomar’s summer heat keeps our HVAC division busy: replacements sized for real valley temperatures, honest repairs that extend equipment life, and new installations for additions needing their own zoning. Our camera inspections diagnose sewer laterals before trenchless lining with a 20-year warranty renews them, and our commercial crews build out the offices, retail, and restaurant spaces along the area’s corridors.
- Room additions — engineered additions for growing families, plumbing and HVAC in-house.
- ADUs and garage conversions — detached units and conversions via our ADU Cities team.
- Kitchen and bath remodels — full renovations with our own licensed plumbing and mechanical crews.
- HVAC install, replacement, and repair — C-20 crews for southwest Riverside County heat.
- Sewer camera inspection and trenchless lining — diagnose and renew laterals; 20-year warranty.
- Water heaters and gas lines — replacement and new runs by licensed C-36 plumbers.
- Commercial and tenant improvement — office, retail, and restaurant build-outs, licensed, bonded, and insured.
Why Wildomar Property Owners Choose Mars
Every property owner eventually chooses: manage a patchwork of trade contractors yourself, or hire one general contractor who owns the whole result. Backed by 30+ years of hands-on experience, Mars Construction Industries Corp has been the second kind — a licensed, bonded, and insured GC (CSLB #1138550) headquartered in Orange, California, holding four licenses in-house: A General Engineering, B General Building, C-36 Plumbing, C-20 HVAC.
Real projects are never single-trade. A bath remodel is plumbing, carpentry, and HVAC; an addition is engineering, building, plumbing, and mechanical. When one company holds all four licenses, there’s no seam for problems to hide in. You get one estimate, one schedule, and one project manager who answers for everything.
Our SB-PW and SB(Micro) certifications reflect the discipline we bring to the job site. And our sister brands — 911 Drain Lines, ADU Cities, Get Your Roof Certified, Universal Inspect — let us serve Riverside County properties end to end, from emergency drain calls to full ADU builds. When a sewer line needs lining, we back it with a 20-year warranty. That’s the accountability Wildomar keeps hiring us for.
Proudly Serving Wildomar and Riverside County
Wildomar sits in southwest Riverside County along the I-15 corridor, served by our Inland Empire crews — reach the IE team directly at 909.325.0020. From our Orange County headquarters we cover roughly a 50-mile radius, and Wildomar’s growing neighborhoods are a regular part of our work. Addition, ADU, or full remodel: call 310.880.9718.
Frequently Asked Questions
Do you offer emergency service?
Yes. 911 Drain Lines runs 24/7 for drain and plumbing emergencies at 714.746.7611. For urgent construction issues, call 310.880.9718 and we’ll get the right crew moving.
Will I deal with several contractors?
No — that’s the point of hiring us. One project manager, one schedule, one company accountable for the finished work. Most projects never need an outside trade; when they do, we coordinate them.
Are you licensed to do this work?
Yes. Mars Construction Industries Corp holds CSLB #1138550 — A General Engineering, B General Building, C-36 Plumbing, and C-20 HVAC. We’re licensed, bonded, and insured, with SB-PW and SB(Micro) certifications. Verify any California contractor at cslb.ca.gov — we encourage it.
We’re outgrowing our house but love our neighborhood. Addition or ADU — how do we decide?
It depends on the need. An addition expands your main living area — best when the family needs more everyday room. An ADU creates separate living space — best for grandparents, adult kids, rental income, or a home office. During the walkthrough we’ll look at your lot, floor plan, and goals, then give you honest numbers for both paths.
Get a Straight Answer on Your Project
Remodel, addition, repipe, new HVAC, or commercial build-out in Wildomar — talk to the contractor who can do all of it. Call Mars Construction Industries Corp at 310.880.9718, or reach our Inland Empire team at 909.325.0020 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.
One accountable team. Four licenses. 30+ years of hands-on experience. That’s Mars.