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Heating & air conditioning in Escondido
Heating and air conditioning repair, maintenance and installation for Escondido homes and businesses: furnaces, heat pumps, central AC, mini splits and rooftop units.
- Free estimates on new systems
- Residential & commercial
- 5-star Google reviews
Serving Escondido: $89 first-hour diagnostic on heating and AC repairs, free estimates on new and replacement systems, and financing available on new systems.
Escondido homes & businesses
Inland North County: you need both
- Hot summer afternoonsInland heat keeps air conditioners running long hours, so a clean, properly charged system matters.
- Cold winter morningsChilly nights mean your furnace or heat pump needs to start reliably when you need it.
- Furnace or heat pump?Replacing an older furnace and AC? One heat pump can cover both. We'll walk you through the options.
- Dust and dry airDry inland air carries dust. Better filtration and a clean system help keep it out of your living space.
- Additions and ADUsNew living spaces need heating and cooling too. A mini split or an extended system can serve them.
Escondido is inland North County, with hot, dry summers and chilly winter nights. Heating matters here about as much as cooling.

What we do
HVAC services in Escondido
Repair, maintenance and installation for Escondido homes and businesses, on all makes and models.
Heating & furnace repair
No heat or cold air from the vents. Gas furnaces, heat pumps and air handlers.
Learn more →AC repair
Warm air, ice on the lines, leaks or an AC that won't start. $89 first-hour diagnostic.
Learn more →Heat pumps
Efficient heating and cooling in one system, ducted or ductless.
Learn more →HVAC installation
Furnaces, heat pumps, air conditioners and air handlers. Free estimates.
Learn more →Indoor air quality
Filtration, Phenomenal Aire air purification and humidity control.
Learn more →Ductless mini splits
Comfort for rooms, additions, garages and homes without ductwork.
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
Escondido HVAC FAQ
My furnace runs but blows cold air. What's wrong?
It could be an ignition or flame sensor problem, a safety control shutting the burners off, or a thermostat setting. A diagnostic visit ($89 for the first hour) will find the cause.
Should I replace my furnace and AC with a heat pump?
It's worth considering. A heat pump provides both heating and cooling in one system. We'll compare it with a new furnace and AC during your free estimate.
Do you install mini splits for ADUs and additions?
Yes. Ductless mini splits are a good fit for ADUs, additions, garages and bonus rooms. Estimates are free.
Do you work on commercial systems in Escondido?
Yes. We service and replace commercial rooftop units, split systems and air handlers across greater San Diego.
Heating or AC trouble in Escondido?
Call 619-333-7575 or book online. $89 first-hour diagnostic; free estimates on new systems.
Or email us at mike@75hvac.com
