About Us

Your single source self-performing  HVAC, Refrigeration, and Kitchen Services provider operating throughout California. For nearly 40 years MAS has provided the critical service needs to help keep our customers businesses operating and successful.

THE MAS DIFFERENCE: One source and one call to meet all your service requirements from refrigeration, HVAC to Kitchen Service needs. Our tenured technicians, many of whom have been with MAS for decades are highly trained, certified, and talented but most importantly to us are good and caring people.

If your service needs are for a single piece of equipment at a single location, or for a multi-outlet concept with hundreds of pieces of equipment throughout California the MAS team will deliver!

Inquire today and experience the MAS difference. You have my personal commitment we will meet and exceed your service needs.

-John Billheimer Sr.

  • 24/7 Emergency Service

  • Preventative Maintenance Service

  • Quick Response Rate

  • Quick-Ship Parts Delivery

  • Free, no obligation estimates

  • Factory certified technicians

  • Electronically dispatched / Satellite verified billing

  • Satisfying our customers for over 30 years

  • Comprehensive maintenance agreements

  • Competitive pricing with clear, concise billing

  • Practices Paperless Technology