Calimesa is a small city with a rural-suburban mix at the edge of the Pass — older ranch properties alongside newer subdivisions, larger lots, and room to build. Projects here tend to involve land as well as structures: additions that extend utilities across the property, ADUs on acreage, and older homes needing full system updates. Mars Construction Industries (CSLB #1138550) holds the A General Engineering license alongside building, plumbing, and HVAC, so one team handles the site work and everything built on it. Inland Empire: 909.325.0020.
Construction & Remodeling Services in Calimesa, CA
Larger lots change the math on every project. Extending a water or gas line to a new addition, managing drainage and grading around new construction, sizing HVAC for added square footage — our four in-house licenses mean the engineering, building, plumbing, and HVAC scopes stay coordinated under one contract instead of split across contractors.
Older ranch properties in Calimesa often need the full treatment: repipes, water heater replacement, sewer lateral inspection and trenchless repair (backed by our 20-year lining warranty), and HVAC replacement for systems that have battled Pass summers for decades. We diagnose first, show you what we find, and quote the work in writing.
- Home additions with site, utility, and HVAC work coordinated in-house.
- ADUs and guest houses on larger lots — 100+ built in four years via ADU Cities.
- Kitchen and bathroom remodels with in-house plumbing throughout.
- Repipes, water heaters, and gas lines by licensed C-36 plumbers.
- Drain and sewer services — camera inspection, hydro jetting, trenchless repair, 20-year lining warranty.
- HVAC install, replacement, and repair sized for Pass-area heat.
- Grading and drainage-related work under our A General Engineering classification.
For growing families and property investors, we build additions, remodel kitchens and baths, and deliver ADUs through our ADU Cities brand — 100+ built in four years — with our own plumbers and HVAC techs handling every tie-in.
Why Calimesa Property Owners Choose Mars
Most remodeling projects fail in the gaps between trades. The plumber roughs in before the framer is done, the HVAC sub never shows, and the homeowner ends up project-managing three companies that blame each other. We built Mars Construction Industries to eliminate that problem. We hold four CSLB classifications in-house — A General Engineering, B General Building, C-36 Plumbing, and C-20 HVAC — so the crew doing your addition is the same company doing your repipe and your HVAC changeout.
We’ve been at it with 30+ years of hands-on experience, working from our Orange County home base across Southern California. We’re licensed, bonded, and insured (CSLB #1138550), and our SB-PW and SB(Micro) certifications reflect a company built to do right by the communities we serve. When you hire Mars, you get one accountable team, one phone number, and one company standing behind the finished work.
Our sister brands extend that accountability: 911 Drain Lines for drain and sewer emergencies, ADU Cities for accessory dwelling units, Get Your Roof Certified for roof certifications, and Universal Inspect for inspection services. Whatever your property needs, there’s a Mars team for it.
Proudly Serving Calimesa and Riverside County
Calimesa is part of Riverside County, and it’s squarely in our service area. From our headquarters at 1119 W. Collins Ave in Orange, CA, we serve communities across Southern California within roughly a 50-mile radius — covering much of Orange County, Los Angeles County, Riverside County, and San Bernardino County. If your property is in or near Calimesa, we’re close enough to show up, walk the project, and stand behind the work. Inland Empire property owners can also reach us at 909.325.0020.
Frequently Asked Questions
We want to build an ADU on our larger lot. Where do we start?
With a site walk. We’ll look at setbacks, access, and where water, sewer, and electrical tie-ins would run, then give you a written estimate for the full build. Through ADU Cities we’ve delivered 100+ units in four years, with our in-house plumbers and HVAC techs handling every utility connection.
Are you a licensed contractor?
Yes. Mars Construction Industries Corp holds CSLB license #1138550 with four classifications: 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 California contractor’s license status at cslb.ca.gov.
How does your estimate process work?
It starts with a conversation and a walkthrough of the project. We look at the full scope, identify what each trade will need to touch, and give you a written estimate with clear, combined pricing. Because our plumbers, HVAC techs, and builders all work for the same company, we price the whole job once instead of stacking separate subcontractor bids with separate markups.
Which trades do you keep in-house?
General construction and remodeling, plumbing, drain and sewer, and HVAC are all in-house under our four license classifications. When a project also needs electrical work, we coordinate with licensed electrical subcontractors so the work stays on one schedule under one accountable team.
Do you offer emergency service?
Yes. Our 911 Drain Lines brand runs 24/7 drain and plumbing emergency service at 714.746.7611. For sewer line emergencies, we can camera-inspect the line, clear it, and talk through repair options including trenchless repair and sewer lining backed by a 20-year warranty.
Do you build ADUs?
Yes. Through our sister brand ADU Cities, we’ve built more than 100 accessory dwelling units in the last four years. From detached backyard units to garage conversions, we handle the full build with the same in-house plumbing, HVAC, and general construction crews.
Get a Straight Answer on Your Project
If you’re planning a remodel, dealing with a plumbing or sewer problem, or need HVAC work in Calimesa, talk to a contractor who can actually do all of it. Call Mars Construction Industries at 310.880.9718 or email brett@marsx.construction. We’ll take a look, give you an honest read on the options, and put a written estimate in front of you. One team, four licenses, no runaround.