DMS Air Conditioning

DMS Air Conditioning operates as a family owned and licensed HVAC contractor serving San Dimas and surrounding Southern California communities. The company holds a 4.6-star rating derived from 14 customer reviews, with operating hours Monday through Friday from 9 AM to 5:30 PM. DMS provides air conditioning and heating services across Los Angeles, Orange, Riverside, and San Bernardino counties, offering 24/7 emergency support for urgent heating and cooling needs.

The company distinguishes itself through comprehensive service guarantees and free consultations for every customer project. Since 1993, DMS has provided heating and cooling solutions to both residential and commercial customers throughout the region. Their service portfolio includes routine maintenance designed to prevent expensive system breakdowns while reducing energy costs, alongside full installation and repair services for various heating systems including central heating and thermostats. The business also partners with general contractors delivering state-of-the-art HVAC solutions for construction projects.

Customer reviews highlight specific technicians who delivered exceptional service. Reviewer Daniella Serquen noted Daniel Montes Jr. facilitated fast scheduling while the technician explained each step of the work clearly. Raymond Olvera described a mini-split installation project for a new ADU where technicians completed initial work in one day and returned after city inspection, additionally repairing cooling issues in rental properties that another company had poorly installed. Reviewer Irene Elaine mentioned rapid response during extreme heat when her AC failed, with technician Israel diagnosing the problem immediately and providing maintenance tips.