Your single source forHVAC, refrigeration & kitchen service.
For over 40 years, MAS has kept California's restaurants, venues, and food service operations running cold, comfortable, and cooking, with certified technicians around the clock.
A fleet of stocked service vans across the Bay Area, Sacramento, and beyond.
- 40+
- Years serving California
- 24/7
- Emergency response
- 5
- Offices statewide
- 1
- Single source, self-performing
One team for everything hot, cold, and in the kitchen
From walk-in coolers to combi ovens, MAS keeps every system in your operation running as one.
Single source. Self-performing. Accountable.
One source and one call to meet all of your service requirements, from refrigeration and HVAC to full kitchen service.
One source, one call
Refrigeration, HVAC, and kitchen equipment handled under one roof, so nothing falls between vendors.
Factory-certified techs
Manufacturer-trained, electronically dispatched technicians with genuine OEM parts on the truck.
Response when it counts
24/7 emergency service, quick-ship parts, and free estimates keep your kitchen running.
Self-performing
We do the work ourselves. No subcontractor roulette, just accountable, honest service.
Built on honesty, expertise, and showing up.
MAS is a single-source, self-performing HVAC, refrigeration, and kitchen services provider operating throughout California. Our technicians stay with us for the long haul, and it shows in the quality of every visit.
“You have my personal commitment we will meet and exceed your service needs.”
Trusted by the brands you know
Restaurants, stadiums, school districts, and national chains across California rely on MAS.
“MAS is the only call we make. In 25 years I have never worked with a partner that handles refrigeration, HVAC, and kitchen equipment this well under one roof.”
Rick Bayer
Facilities Director
Equipment down? We answer, 24/7.
One call covers refrigeration, HVAC, and kitchen. Certified technicians, statewide, around the clock.