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About CoolCosmos HVAC
CoolCosmos HVAC is a heating contractor serving La Mesa, CA and surrounding areas. Check their working hours below for current availability. You can reach them at (619) 754-2501 to schedule an appointment or request a free estimate.
Working Hours
| SundayToday | 8 AM–8 PM |
| Monday | 8 AM–8 PM |
| Tuesday | 8 AM–8 PM |
| Wednesday | 8 AM–8 PM |
| Thursday | 8 AM–8 PM |
| Friday | 8 AM–8 PM |
| Saturday | 8 AM–8 PM |
Services
Furnace Repair & Diagnostics
Assessment and repair of residential heating systems, including ignition problems, blower motor issues, and thermostat malfunctions.
Heating System Installation
New heating unit installation for existing homes and new construction projects within the La Mesa service area.
Annual Furnace Maintenance
Preventive maintenance visits including filter changes, combustion analysis, and system calibration for optimal performance.
Heating System Replacement
Remove outdated heating equipment andinstall modern, efficiency-compliant replacement units meeting current energy standards.
Thermostat & Control Programming
Installation and configuration of programmable and smart thermostats compatible with existing heating infrastructure.