Straight Answers.
The questions we hear most — answered the way we’d answer them on the phone.
ARE YOU LICENSED AND INSURED?
Yes. Mars Construction Industries Corp holds CSLB #1138550 — A General Engineering, B General Building, C-36 Plumbing, and C-20 HVAC. We’re licensed, bonded, and insured in California.
WHAT AREAS DO YOU SERVE?
Orange County is home base, and we work across roughly a 50-mile radius: Los Angeles, Riverside, San Bernardino, San Diego, and Ventura counties. The Inland Empire has its own dedicated line: 909.325.0020.
DO YOU HANDLE BOTH RESIDENTIAL AND COMMERCIAL WORK?
Yes. Homeowners get the same seriousness we bring to commercial build-outs — and property managers, GCs, and business owners get a multi-trade partner that can self-perform across scopes under one contract.
WHAT TRADES DO YOU SELF-PERFORM?
Plumbing (C-36), HVAC (C-20), general building (B), and general engineering (A) — all in-house under CSLB #1138550. That’s the whole point of hiring us: fewer subcontractors, fewer handoffs, one accountable team.
DO YOU OFFER EMERGENCY SERVICE?
Yes — 24 hours a day, 7 days a week, through our sister brand 911 Drain Lines. Sewage backups, burst pipes, major leaks: call 714.746.7611 any time and you’ll reach a person, not a voicemail.
DO YOU BUILD ADUS?
Yes — it’s a specialty. Through our sister brand ADU Cities, we’ve designed, permitted, and built 100+ ADUs in the last four years: garage conversions, attached units, detached backyard homes, and second-story builds. Learn more at aducities.com.
HOW DO ESTIMATES WORK?
Every project starts with a conversation — you describe what you need, and we give you an honest first read. If it needs eyes on site, we schedule a visit. Then you get a written scope with itemized pricing. No pressure, no obligation.
ARE YOU CERTIFIED FOR PUBLIC-SECTOR WORK?
We hold California SB-PW and SB(Micro) small business certifications, which make us eligible for public-sector and public-works-adjacent opportunities where small business participation counts.
WHAT WARRANTY DO YOU OFFER ON SEWER LINING?
Our trenchless sewer lining is backed by a 20-year warranty.
HOW DO I START A PROJECT WITH YOU?
Call 310.880.9718 or email brett@marsx.construction. Tell us what you’re building — or what’s broken — and we’ll take it from there. For drain emergencies right now, call 714.746.7611.
DO YOU WORK WITH PROPERTY MANAGERS?
Yes — tenant improvements, multi-family plumbing and sewer work, and ongoing service relationships for portfolios. One call covers all of it: 310.880.9718.
WHAT ARE YOUR SISTER COMPANIES?
911 Drain Lines (24/7 drain and plumbing emergency, 714.746.7611), ADU Cities (accessory dwelling units, aducities.com), Get Your Roof Certified (NRCIA roof certification, getyourroofcertified.com), and Universal Inspect (property inspections, universalinspect.com). One parent company — Mars Construction Industries — one standard.
Still Have a Question? Ask Us Directly.
Call 310.880.9718 or write brett@marsx.construction — you’ll reach someone who can actually answer. CSLB #1138550.
—