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Heating & air conditioning in Coronado
Heating, air conditioning and indoor air quality for Coronado homes and businesses, with the same honest, family-owned service we bring to every call across greater San Diego.
- Free estimates on new systems
- Residential & commercial
- 5-star Google reviews
Serving Coronado: $89 first-hour diagnostic on heating and AC repairs, free estimates on new and replacement systems, and financing available on new systems.
Coronado homes & businesses
What the coast means for your system
- Salt air and outdoor unitsSalty coastal air can speed up corrosion on outdoor coils, fins and metal parts. Regular cleaning and inspection help catch it early.
- Homes without ductworkPlenty of homes near the coast were built without central air. Ductless mini splits add cooling and heating without new ducts.
- Mild weather suits heat pumpsWith moderate temperatures most of the year, an efficient heat pump can handle both heating and cooling.
- Damp air and stale roomsMarine air and closed-up rooms can feel stuffy. Better filtration and ventilation can help.
- Warm late-summer daysWhen the heat does arrive, a well-maintained system keeps up without straining.
Coronado's marine climate is mild most of the year, so comfort here is less about extreme heat and more about choosing the right kind of system, and protecting it from salt air.
What we do
HVAC services in Coronado
Repair, maintenance and installation for Coronado homes and businesses, on all makes and models.
Ductless mini splits
Comfort for rooms, additions, garages and homes without ductwork.
Learn more →Heat pumps
Efficient heating and cooling in one system, ducted or ductless.
Learn more →Maintenance & tune-ups
$89 per unit to keep your system efficient and reliable.
Learn more →Indoor air quality
Filtration, Phenomenal Aire air purification and humidity control.
Learn more →AC repair
Warm air, ice on the lines, leaks or an AC that won't start. $89 first-hour diagnostic.
Learn more →Heating & furnace repair
No heat or cold air from the vents. Gas furnaces, heat pumps and air handlers.
Learn more →
A family business. Owner Mike Mauzy has 20 years in the HVAC trade. He learned it from his grandpa and his dad, founded 75 Degree Heating & Air in 2020, and is still out in the field with his NATE-certified crew. Our shop is at 2558 Eltinge Dr. in Alpine. Our story →
FAQ
Coronado HVAC FAQ
Does salt air affect air conditioners in Coronado?
It can. Salt carried in coastal air can contribute to corrosion of outdoor coils and metal parts over time. Keeping the outdoor unit clean and having it inspected during routine maintenance helps spot problems before they turn into failures.
My Coronado home has no ductwork. Can I still add AC?
Yes. Ductless mini splits heat and cool individual rooms or zones without ductwork. We offer free estimates on mini split installations.
Is a heat pump a good fit near the coast?
For many coastal homes, yes. Heat pumps provide efficient heating and cooling in mild climates. We can compare options with you during a free estimate.
What does a repair visit cost?
Our diagnostic is $89 for the first hour. We explain what we find and what the repair involves before any work begins.
Heating or AC trouble in Coronado?
Call 619-333-7575 or book online. $89 first-hour diagnostic; free estimates on new systems.
Or email us at mike@75hvac.com