DHA Mechanical, Inc.
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About DHA Mechanical, Inc.
DHA Mechanical, Inc. operates as an HVAC contractor serving Brentwood, California, and surrounding communities in Contra Costa County. The business maintains a 4.4-star rating derived from 17 customer reviews, indicating generally positive service outcomes. Operating hours span Monday through Friday from 7 AM to 3:30 PM, with weekend service unavailable. Homeowners in the Brentwood area seeking heating and cooling repairs can reach the office at (925) 425-2770.
Customer reviews highlight a mixed service experience, with some clients reporting frustration over pricing transparency and diagnostic timelines while others praise specific team members for responsiveness and quality workmanship. One reviewer described a same-day appointment during an urgent no-air situation, while another appreciated when the team declined to charge for a follow-up service call. The technical staff appears to include multiple specialists who handle different aspects of repair and installation work.
What Customers Say
Three of four detailed reviews award 5 stars, with customers specifically naming Paul, Sheri, Jorge, Anthony, and technicians who resolved multiple system problems. The single 1-star review cites billing transparency concerns and longer-than-expected diagnostic time on a warranty claim. Positive reviewers emphasize same-day scheduling, fair pricing, and refusal to charge for return visits.
Working Hours
| Sunday | Closed |
| Monday | 7 AM–3:30 PM |
| Tuesday | 7 AM–3:30 PM |
| Wednesday | 7 AM–3:30 PM |
| Thursday | 7 AM–3:30 PM |
| Friday | 7 AM–3:30 PM |
| SaturdayToday | Closed |
Services
Heating Repair & Maintenance
and repair of heating systems including furnaces, igniters, and related components.
Cooling / AC Repair
Air conditioning diagnostic services, part ordering, and system repairs.
Emergency Service
Same-day appointment availability for urgent heating and cooling needs.
System Diagnostics
Comprehensive troubleshooting to identify underlying HVAC system issues.
Parts Replacement & Installation
Ordering and installing replacement parts including components requiring special order.
Warranty Work
Service claims processed for equipment still under manufacturer warranty.