Lake Forest grew out of master-planned communities — El Toro’s transformation into a south Orange County suburb of neighborhoods, parks, and lake-adjacent living. Much of the housing dates to the 1970s through the 1990s, which puts it squarely in update territory: original kitchens and baths, aging water heaters and HVAC, and floor plans from an era before open-concept living. Mars Construction Industries Corp is the right kind of contractor for this work — a multi-trade GC with construction, plumbing, drain/sewer, and HVAC licenses in-house, so your Lake Forest home gets one coordinated team instead of a parade of separate trades.
Construction & Remodeling Services in Lake Forest, CA
Kitchen remodels are the signature project in Lake Forest’s planned neighborhoods. Closed-off 1980s kitchens open into great rooms with islands, proper lighting, and storage designed around real cooking. Our C-36 plumbers handle every water, drain, and gas line in-house — including gas range conversions and pot fillers — while our crews manage the framing, drywall, and finishes. Bathroom remodels follow the same pattern: walk-in showers replacing tub-shower combos, double vanities, and tile work built on proper waterproofing.
Whole-home renovations make sense for Lake Forest houses where everything original is aging at once. Rather than five separate projects over five years, we modernize kitchen, baths, flooring, paint, and systems in one coordinated push — walls opened once, trades sequenced once, disruption lived through once. For growing families, we build room additions and ADUs: a fourth bedroom, a home office, or a detached unit for extended family. Through our sister brand ADU Cities, we’ve completed more than 100 ADUs in four years.
Systems work keeps these homes running: water heater replacement, repipes for aging supply lines, and full HVAC installation and replacement through our C-20 team. Drain and sewer service comes through 911 Drain Lines — camera inspections, hydro jetting, and trenchless repair with a 20-year lining warranty, plus 24/7 emergency response at 714.746.7611.
- Kitchen remodels: open layouts, islands, cabinetry, stone counters
- Bathroom remodels: walk-in showers, vanities, tile, fixtures
- Whole-home renovations for 1970s–90s planned-community homes
- Room additions and ADUs
- Plumbing: repipes, water heaters, gas lines, fixture upgrades
- HVAC installation, replacement, and repair
- Drain & sewer: camera inspection, hydro jetting, trenchless repair (20-year warranty)
- Commercial tenant improvement and commercial mechanical/plumbing
Why Lake Forest Property Owners Choose Mars
Planned-community homes were built as systems — structure, plumbing, and ductwork designed together — and remodeling them well means respecting that. Mars holds A General Engineering, B General Building, C-36 Plumbing, and C-20 HVAC licenses in-house under CSLB #1138550. When your kitchen remodel needs a plumber, an HVAC adjustment, and a framing change, that’s one company, one schedule, one accountable team — not three vendors negotiating over your calendar.
Mars Construction Industries Corp brings 30+ years of hands-on experience — licensed, bonded, and insured, with SB-PW and SB(Micro) small-business certifications. One call gets you a straight answer and a crew that treats your home like it’s their reputation on the line — because it is.
Proudly Serving Lake Forest and Orange County
Lake Forest is in south Orange County, a short drive from our headquarters at 1119 W. Collins Ave in Orange, CA. We serve homeowners throughout Orange County — including nearby Mission Viejo, Laguna Hills, Irvine, and Rancho Santa Margarita — and across Los Angeles, Riverside, San Bernardino, and San Diego counties.
Frequently Asked Questions
Are you a licensed contractor?
Yes. Mars Construction Industries Corp is CSLB #1138550, holding A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC). Licensed, bonded, and insured, with SB-PW and SB(Micro) certifications.
How do your estimates work?
We walk the project, scope it completely — construction, plumbing, HVAC, finishes — and deliver a written estimate with combined labor-and-material pricing before work begins.
Which trades do you keep in-house?
General construction, plumbing, drain and sewer, and HVAC — all under our own licenses. Work outside those classifications, such as electrical contracting, is performed by licensed specialty subcontractors we manage.
Can you build an ADU on my property?
In most cases, yes. Through ADU Cities we’ve built more than 100 ADUs in four years — detached units, garage conversions, and attached additions.
Do you handle HVAC replacement?
Yes — full installation, replacement, and repair, with proper load calculations so the new system matches your home.
Do you handle plumbing emergencies?
Yes. 911 Drain Lines provides 24/7 drain and plumbing emergency service at 714.746.7611.
Get a Straight Answer on Your Project
Kitchen, baths, addition, ADU, or systems work in Lake Forest — call Mars Construction Industries Corp at 310.880.9718 or email brett@marsx.construction. One accountable team, four licenses in-house.