Claremont is a college town with a village heart — tree-lined streets, historic architecture, and some of the most character-rich vintage homes in the San Gabriel Valley. Restoring and updating these houses takes a contractor with judgment: knowing what to preserve, what to replace, and how to bring century-old systems up to modern standards without erasing what makes the house special. Mars Construction Industries Corp brings 30+ years of hands-on experience to that kind of careful, multi-trade work. With construction, plumbing, drain/sewer, and HVAC licenses all in-house, we handle the structure, the systems, and the finishes as one coordinated project — which is exactly what a vintage Claremont home demands.
Construction & Remodeling Services in Claremont, CA
Vintage homes reward infrastructure-first thinking. Before the beautiful kitchen goes in, the 80-year-old galvanized supply lines, the cast-iron drains, and the undersized electrical-era plumbing need an honest assessment. We start with camera inspections of sewer laterals and evaluations of supply lines and water heaters — then fix what’s failing: trenchless sewer repair and lining with a 20-year warranty, whole-house repipes, and water heater replacement. Our A (General Engineering) license also covers the structural side of older homes: foundation work, framing corrections, and seismic-era upgrades that vintage houses often need.
Once the bones are right, Claremont kitchens and bathrooms get the respectful update they deserve. We open dark, closed-off kitchens to the home’s natural light, install cabinetry and counters suited to the house’s character, and rebuild bathrooms with proper waterproofing, walk-in showers, and fixtures chosen for longevity. Whole-home renovations tie it together — flooring, paint, systems, and finishes in one project instead of five disruptive ones.
HVAC in vintage homes is its own specialty: no existing ductwork, plaster walls, and layouts that were never designed for central air. Our C-20 team designs systems for these realities — high-velocity or ductless options where traditional ducts won’t fit, and full installations where they will. We also build additions and ADUs — more than 100 through our sister brand ADU Cities in four years — designed to complement historic architecture rather than clash with it.
- Vintage-home infrastructure: sewer camera inspection, trenchless repair (20-year warranty), repipes
- Structural work: foundations, framing corrections, additions under our A license
- Kitchen remodels respectful of historic character
- Bathroom remodels with proper waterproofing and period-appropriate design
- Whole-home renovations for older properties
- HVAC designed for vintage homes: ducted, high-velocity, and ductless options
- Water heaters, gas lines, and fixture upgrades
- Additions and ADUs that complement existing architecture
Why Claremont Property Owners Choose Mars
A vintage home is four projects wearing a trench coat: structural, plumbing, mechanical, and finish — all interacting. Single-trade contractors see one layer; we see all of them. Mars holds A General Engineering, B General Building, C-36 Plumbing, and C-20 HVAC licenses in-house under CSLB #1138550. The crew that corrects the framing runs the new plumbing and designs the HVAC around it. One accountable team, and a result that respects the house.
Mars Construction Industries Corp — licensed, bonded, and insured — backed by 30+ years of hands-on experience, SB-PW and SB(Micro) certified. Emergency drain and plumbing service through 911 Drain Lines, 24/7 at 714.746.7611.
Proudly Serving Claremont and Los Angeles County
Claremont sits at the eastern edge of Los Angeles County, in the foothills of the San Gabriels — squarely in our service area. From our Orange, CA headquarters we serve property owners across Los Angeles County, including nearby Pomona, La Verne, San Dimas, and Glendora, as well as Orange, 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.
My home is 80+ years old. Where do we start?
With the systems you can’t see: sewer lateral, supply lines, water heater, and structure. We diagnose first with camera inspections and honest evaluations, fix the infrastructure, then build the beautiful finishes on top of sound bones.
Can you add air conditioning to a house with no ductwork?
Often, yes. Our C-20 team designs HVAC for vintage construction — including high-velocity and ductless options where traditional ductwork won’t fit — and we’ll tell you honestly what your house will support.
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, goes to licensed specialty subcontractors under our management.
Do you offer trenchless sewer repair?
Yes. Where the existing line allows, trenchless repair or lining replaces a failing lateral without tearing up landscaping or hardscaping, backed by a 20-year warranty.
Can you build an ADU that matches a historic home?
We design additions and ADUs to complement existing architecture. Through ADU Cities we’ve completed more than 100 ADUs in four years.
Get a Straight Answer on Your Project
Your Claremont home has character worth preserving and systems worth replacing — in that order. Call Mars Construction Industries Corp at 310.880.9718 or email brett@marsx.construction. One accountable team, four licenses in-house, and a contractor who respects vintage houses.