San Juan Capistrano is Orange County’s historic soul — the Mission, the Los Rios district’s adobes, equestrian properties stretching into the hills. Building here requires a contractor who reads the property before touching it: older homes with generations of modifications, ranch properties with guest houses and outbuildings, a community character worth preserving. A volume remodeler chasing speed is the wrong fit; a careful multi-trade contractor is the right one.
Mars Construction Industries Corp runs that model, 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). One licensed, bonded, and insured team for the historic-home repipe, the guest-house addition, the ranch-property ADU, and the HVAC replacement — with the judgment to preserve what makes the property special and the licenses to modernize what doesn’t.
Construction & Remodeling Services in San Juan Capistrano, CA
Older San Juan Capistrano homes often hide a century of plumbing evolution — galvanized giving way to copper giving way to whatever the last owner improvised. Our C-36 crews sort it out: whole-home repipes routed to protect original finishes, sewer camera inspections mapping the lateral’s real condition, and trenchless lining with a 20-year warranty that avoids disturbing mature oaks and established grounds. Equestrian and large-lot properties fit our ADU division naturally — 100+ ADUs built in four years through ADU Cities — guest houses, casitas, and converted outbuildings designed, permitted with our support, and built by one team.
The village commercial district brings tenant-improvement work too — offices, retail, and restaurant interiors where in-house plumbing and HVAC keep schedules honest. Throughout, our approach stays the same: diagnose first, plan completely, then build with one accountable crew. Our C-20 crews size HVAC for main homes, guest houses, and outbuildings alike.
- Historic-home remodeling — renovations preserving character while modernizing systems.
- Guest houses, casitas, and ADUs — via our ADU Cities team, for equestrian and large-lot properties.
- Whole-home repipes — untangling generations of plumbing with clean, modern supply systems.
- Sewer camera inspection and trenchless lining — video diagnosis; 20-year warranty, landscaping spared.
- HVAC install, replacement, and repair — C-20 crews for main homes, guest houses, and outbuildings.
- Water heaters and gas lines — replacement and new runs by licensed C-36 plumbers.
- Commercial and tenant improvement — office, retail, and restaurant interiors, licensed, bonded, and insured.
Why San Juan Capistrano Property Owners Choose Mars
The classic remodeling horror story goes like this: three contractors, three schedules, and nobody responsible when something goes wrong. We’re the opposite of that. Mars Construction Industries Corp is licensed, bonded, and insured (CSLB #1138550), backed by 30+ years of hands-on experience, and we hold four trade licenses in-house — A General Engineering, B General Building, C-36 Plumbing, C-20 HVAC — so most of your project never leaves our own crews.
That changes the experience: the company that bids your kitchen remodel also moves the gas line, sizes the HVAC for the new floor plan, and handles the structural work. No finger-pointing between subs, no stacked mystery markups, no waiting weeks for a trade contractor to fit you in.
We’re based in Orange, California, and carry SB-PW and SB(Micro) certifications. Through 911 Drain Lines, ADU Cities, Get Your Roof Certified, and Universal Inspect, we serve a property end to end — from the sewer lateral (our trenchless lining has a 20-year warranty) to the roof. San Juan Capistrano hires us because one accountable team is simply easier, and the work turns out better.
Proudly Serving San Juan Capistrano and Orange County
San Juan Capistrano anchors south Orange County — our home county — an easy drive up the 5 from our office at 1119 W. Collins Ave in the city of Orange. From the Los Rios historic district to the equestrian neighborhoods, properties here get our full four-license team and the careful approach historic and ranch properties deserve. Call 310.880.9718.
Frequently Asked Questions
Do you handle every trade in-house?
The trades that matter most — building, plumbing, HVAC — are our own licensed crews under CSLB #1138550. For specialty scopes outside our four licenses, we bring in vetted specialists and manage them. Either way, you deal with one accountable team and one point of contact.
Do you take on commercial work?
Absolutely — offices, retail, restaurants, and light industrial/warehouse interiors. We’re licensed, bonded, and insured for commercial work with SB-PW and SB(Micro) certifications, and in-house plumbing and HVAC keep TI schedules tight.
What areas do you serve?
We’re based in Orange, California, working within roughly a 50-mile radius across Orange County, LA County, and the Inland Empire. San Juan Capistrano is squarely in our service area — our crews are in Orange County regularly.
We have a guest house on our property that needs work. Do you handle outbuildings?
Yes. We renovate and build guest houses, casitas, and ADUs on larger properties — plumbing, HVAC, and structural included, since all three are our own licensed crews. Through ADU Cities we’ve built 100+ ADUs in four years. We’ll walk the property and give you a detailed written estimate covering the whole scope.
Get a Straight Answer on Your Project
Remodel, addition, repipe, new HVAC, or commercial build-out in San Juan Capistrano — talk to the contractor who can do all of it. Call Mars Construction Industries Corp at 310.880.9718 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.
Plumbing or drain emergency? Our sister brand 911 Drain Lines answers around the clock at 714.746.7611.
One accountable team. Four licenses. With 30+ years of hands-on experience. That’s Mars.