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Stay Comfortable San Diego
HVAC maintenance & tune-ups in San Diego
Regular maintenance helps your heating and cooling system run efficiently, last longer and avoid surprise breakdowns. We tune up residential systems and commercial rooftop units across greater San Diego.
- Residential & commercial
- 5-star Google reviews
Preventative maintenance: $89 per unit. A seasonal tune-up for each heating or cooling unit, residential or commercial. Schedule yours →
Maintenance visit
What a tune-up includes
$89 per unit. Exact checklist varies by equipment type.
Filter check
Inspect the filter and replace or recommend a replacement as needed.
Performance check
Check system operation, temperatures and controls to make sure it's working as designed.
Electrical & parts inspection
Inspect electrical connections and key components for wear before they fail.
Cooling-side check
Inspect the outdoor unit and coils, and check for signs of refrigerant problems.
Heating-side check
Inspect burners, ignition and safety controls on furnaces, or heat-mode operation on heat pumps.
Drainage check
Check the condensate drain so water doesn't back up or leak.
Why it matters
Benefits of regular maintenance
- Catch problems earlySmall issues found during a tune-up are usually cheaper to fix than a breakdown.
- Lower energy useA clean, properly adjusted system doesn't have to work as hard.
- Longer equipment lifeRoutine care helps protect your investment in your system.
- More reliable comfortFewer surprises during the hottest and coldest days of the year.
- Better airClean filters and components help keep dust moving out of the air, not around it.

Homes & businesses
Residential and commercial
For your home
Seasonal tune-ups for furnaces, heat pumps, central AC, air handlers and mini splits. Many homeowners schedule a cooling check before summer and a heating check before winter.
For your business
Scheduled preventative maintenance for commercial rooftop units and split systems, planned around your business hours.
FAQ
Maintenance FAQ
How often should my system be serviced?
A common recommendation is once a year for each system, and many people prefer twice a year: cooling in spring and heating in fall. Commercial equipment that runs heavily may benefit from more frequent service.
How often should I change my filter?
It depends on the filter type, pets, and how much the system runs. Checking it monthly and replacing it when it looks dirty is a good habit.
Do mini splits need maintenance?
Yes. Indoor heads have filters and coils that need cleaning, and outdoor units should be kept clear and inspected.
Do you maintain commercial rooftop units?
Yes. We offer preventative maintenance for commercial rooftop package units across the greater San Diego area.
Time for a tune-up?
Schedule maintenance for your home or business.
Or email us at mike@75hvac.com
