Highland sits against the San Bernardino foothills — neighborhoods with views, larger homes on generous streets, and a mix of established tracts and newer hillside development. Foothill living comes with foothill realities: grading and drainage that have to be right, homes where additions need to respect the slope, and systems working a little harder than they do on flat ground.
This is exactly the territory where an A General Engineering license earns its keep. Additions, retaining and drainage improvements, and ADUs on sloped or terraced lots need a contractor who understands structure and site work — not just finishes. Combined with our B, C-36, and C-20 licenses, Highland homeowners get one team that can handle the hill, the house, and everything inside the walls.
Construction & Remodeling Services in Highland, CA
Room additions are a natural fit in Highland, where lots and views reward staying put: family rooms, primary suites, and second-story additions engineered for the site. Our A-license background covers the structural and grading side of hillside-adjacent work, including drainage improvements that protect foundations and keep water moving where it should.
Inside, we remodel kitchens and bathrooms to match the scale of these homes, build detached ADUs for family or income, and modernize the systems behind it all — whole-home repipes, water heater and gas line upgrades, and HVAC replacement by our in-house C-20 team for even comfort across multi-level floor plans. Our 911 Drain Lines division cameras sewer laterals, hydro jets buildup, and performs trenchless repairs backed by a 20-year lining warranty, which matters on properties where digging up the yard is the last thing anyone wants.
- Room additions and second-story additions, including hillside-adjacent sites
- Drainage improvements and structural site work (A General Engineering licensed)
- Kitchen and bathroom remodeling
- Detached ADUs for family or rental income
- HVAC installation, replacement, and repair (C-20 licensed)
- Whole-home repipes, water heaters, and gas lines
- Sewer camera inspection, hydro jetting, trenchless repair — 20-year lining warranty
Why Highland Property Owners Choose Mars
Most construction projects fall apart in the gaps between trades. The general contractor blames the plumber, the plumber blames the HVAC tech, and the homeowner is left playing referee. Mars Construction Industries Corp was built to eliminate that problem. We have been a licensed general contractor in Southern California backed by 30+ years of hands-on experience, and we hold four CSLB licenses in-house: A General Engineering, B General Building, C-36 Plumbing, and C-20 HVAC — CSLB #1138550.
That means one accountable team from the first walkthrough to the final punch list. When your project needs a repipe, a new sewer lateral, and an HVAC changeout in the same week, you make one call and we sequence all of it. No finger-pointing, no scheduling gaps, no “that’s not my trade.”
We are licensed, bonded, and insured, and we carry SB-PW and SB(Micro) small business certifications. Our family of brands — 911 Drain Lines for drain and sewer work, ADU Cities for accessory dwelling units, Get Your Roof Certified, and Universal Inspect for property inspections — means the same company you trust with your remodel can also camera your sewer line, build your ADU, or inspect a property before you buy it.
Proudly Serving Highland and San Bernardino County
Highland is one of the San Bernardino County communities we serve. Our home base is at 1119 W. Collins Ave in Orange, CA, and our Inland Empire crews serve communities across the region. Inland Empire customers can also reach us directly at 909.325.0020.
Frequently Asked Questions
Are you a licensed contractor?
Yes. Mars Construction Industries Corp holds California CSLB license #1138550, covering 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.
How does the estimate process work?
It starts with a conversation about what you need. We walk the project, put together a clear written scope, and give you straightforward combined pricing — no buried markups, no vague allowances. Call 310.880.9718 or email brett@marsx.construction and we will set up a time to look at your project.
Which trades do you handle in-house?
General construction and remodeling, plumbing, drain and sewer, and HVAC — all under our own CSLB licenses, so one team is accountable for the whole job. If your project also needs electrical work, we coordinate it through licensed C-10 electrical subcontractors and manage them as part of your project.
Do you offer emergency service?
For drain and plumbing emergencies, our 911 Drain Lines team is available 24/7 at 714.746.7611 — camera inspections, hydro jetting, and sewer repairs, day or night.
Can you build an ADU on my property?
In many cases, yes. Through our sister brand ADU Cities, we have built more than 100 ADUs in the last four years, so we know how to evaluate a lot, design to the space, and build it right.
Do you take on commercial work?
Yes. We handle commercial and tenant improvement projects — office and retail buildouts, restaurant plumbing, and multi-trade renovations — with the same single-point accountability we bring to residential work.
Get a Straight Answer on Your Project
Whether it is a kitchen remodel, a sewer line that keeps backing up, an HVAC system that cannot keep up, or plans still on paper — talk to a contractor licensed to do the whole job. Call Mars Construction Industries Corp at 310.880.9718 or email brett@marsx.construction. One call, one accountable team, and a straight answer about what your project really needs.
Prefer email? Send your project details to brett@marsx.construction.