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About DS HVAC LLC
DS HVAC LLC serves Ontario, California as a residential heating and cooling contractor. The company holds a 5.0-star average rating from five client reviews, with every rating falling at the maximum five stars. Service appointments operate from 9 AM to 5 PM daily, providing consistent weekday and weekend coverage for homeowners throughout the area.
The review feedback points to thorough diagnostic approaches and system-specific repairs. Customers describe technicians who investigate each problem area methodically, with one review highlighting discovery of an air intake blockage caused by cottonwood seeds that was starving the system of thermal transfer. Another client notes a furnace replacement where the team performed comprehensive system testing after installation. These accounts suggest attention to complete resolution rather than temporary fixes.
Customer experiences documented in reviews describe several scenarios worth noting. One homeowner reported their interior temperature climbing despite the system running continuously, a situation the technician resolved by identifying and clearing an obstructed external air intake. Another client mentioned a furnace replacement proceeding quickly with thorough post-installation testing. The reviews do not name individual technicians, but consistently emphasize professional handling and lasting solutions.
What Customers Say
All five reviews award five stars, with clients emphasizing thorough diagnostics, careful problem identification, and system-wide solutions. No reviewers mention emergency same-day service, pricing concerns, or specific technician names.
Working Hours
| Sunday | 9 AM–5 PM |
| Monday | 9 AM–5 PM |
| Tuesday | 9 AM–5 PM |
| Wednesday | 9 AM–5 PM |
| Thursday | 9 AM–5 PM |
| Friday | 9 AM–5 PM |
| SaturdayToday | 9 AM–5 PM |
Services
Furnace Repair
Diagnosing and fixing heating system malfunctions including ignition issues, airflow problems, and component failures.
Furnace Replacement
Removing old furnaces and installing new units with post-installation testing to verify performance.
Air Conditioning Service
Cooling system maintenance and repairs to restore proper refrigerant levels and airflow.
System Diagnostics
Thorough inspection identifying root causes of heating and cooling inefficiencies before recommending repairs.
Preventive Maintenance
Regular service to keep heating and cooling systems operating at peak efficiency and extend equipment life.