Hidden Hills is a private, gated equestrian community of large estates — the kind of place where a project has to be handled with discretion, precision, and respect for the property around it. Whole-home renovations, guest houses, and major additions are the norm here, and they demand a contractor comfortable working at that scale without disrupting a quiet, guarded neighborhood.
Large luxury projects are also where the multi-trade model matters most. A Hidden Hills estate renovation can involve structural changes, complete repipes, new HVAC zones for a much larger footprint, and equestrian outbuildings — four or five trades deep. Mars Construction Industries Corp holds four CSLB classifications in-house — A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC) — so the complexity stays under one roof, one schedule, and one point of accountability.
Construction & Remodeling Services in Hidden Hills, CA
Our estate-level work covers whole-home renovations, major additions, and new guest houses and pool houses. We rebuild kitchens and primary suites to a high finish standard, reconfigure floor plans with proper structural engineering coordination, and extend or replace plumbing and HVAC systems sized for large homes — including zoned HVAC that keeps a sprawling floor plan comfortable without waste.
Equestrian properties bring their own scope: barns, tack rooms, and outbuildings need durable plumbing, proper drainage, and climate control that stands up to daily use. We build and renovate these structures with the same care as the main house. And for estate owners adding housing for family or staff, our sister brand ADU Cities has delivered more than 100 accessory dwelling units in four years — detached guest houses and conversions handled start to finish.
Behind the finishes, we handle the infrastructure luxury homes depend on: complete repipes, water heater systems, gas lines for outdoor kitchens and pool heaters, and sewer line inspection and trenchless repair through 911 Drain Lines — our sewer lining carries a 20-year warranty.
- Whole-home luxury renovations and major additions
- Guest houses, pool houses, and ADUs via ADU Cities
- High-end kitchen and primary suite remodels
- Barns, tack rooms, and equestrian outbuildings
- Complete repipes and plumbing system rebuilds
- Zoned HVAC design, install, and replacement for large homes
- Water heaters, gas lines, and outdoor kitchen plumbing
- Sewer camera inspection and trenchless repair with a 20-year lining warranty
Why Hidden Hills Property Owners Choose Mars
Estate work in a gated community leaves no room for disorganization. Here’s what Hidden Hills property owners get from our model:
Mars Construction Industries Corp is a general contractor backed by 30+ years of hands-on experience, based in Orange, California. We are licensed, bonded, and insured, holding four CSLB classifications in-house under license #1138550: A (General Engineering), B (General Building), C-36 (Plumbing), and C-20 (HVAC). We are also SB-PW and SB(Micro) certified.
That means one accountable team. Most projects cross trades, and that is where jobs stall — the plumber blames the framer, and you are left managing people who do not work for you. With Mars, the general contractor, the plumbing crew, and the HVAC crew are the same company: one estimate, one schedule, one phone number, and no gaps between trades.
Proudly Serving Hidden Hills and Los Angeles County
Hidden Hills sits in Los Angeles County, and we serve it regularly from our Orange County home base. We serve Hidden Hills and the surrounding San Fernando Valley and Westside communities, working across Los Angeles County from our Orange County base.
Frequently Asked Questions
Is Mars Construction Industries Corp licensed for this work?
Yes. We operate under CSLB license #1138550 with four classifications in-house: 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 contractor’s license status through the Contractors State License Board before you sign anything — and you should.
How do you handle work inside a gated community?
We coordinate with gate security and HOA requirements from day one — crew access, work hours, staging, and noise expectations all get settled before we start. Our project management keeps the job site clean and contained, which matters in a community where your neighbors are close and the standards are high.
Can one contractor really handle a project with this many moving parts?
That’s the core of our model. Estate renovations routinely span structural work, plumbing, and HVAC — we hold the A, B, C-36, and C-20 classifications under one license, so those trades are our own crews on our own schedule. For work outside our classifications, such as electrical, we bring in properly licensed subcontractors and remain accountable for them.
Do you work on equestrian outbuildings or just the main house?
Both. Barns, tack rooms, wash racks, and guest houses are all within our scope — plumbing, drainage, HVAC, and general construction handled by the same team that works on the residence.
Get a Straight Answer on Your Project
Planning a remodel, an addition, an ADU, or just need a straight answer about a plumbing or HVAC problem? Talk to a contractor that can do it all. Call Mars Construction Industries Corp at 310.880.9718 or email brett@marsx.construction for a walkthrough and a written proposal. One team, four licenses, and an answer you can build on.
Plumbing or drain emergency? Our sister brand 911 Drain Lines answers around the clock at 714.746.7611.