Los Altos CA Heating and Air Conditioning Service

Certified Heating & Air Conditioning provides heater and air conditioning repair, service, installation and services in Los Altos CA and surrounding areas. Check out what some of our customers are saying about Certified Heating & Air Conditioning Heating and Air Conditioning services.

Local Reviews
for Los Altos, CA


Chris  R.

Chris R.

Building estimate for solar system for client, with rooftop installation on cottage

Near Beverly Ln, Los Altos, CA 94022
Chris  R.

Chris R.

Performed tune up on air conditioner, cleaned filter and outdoor unit. Checked capacitor, contactor, electrical connections, refrigerant levels and amperage draw on compressor, condenser fan motor and blower. Found system not designed properly, 3 ton upflow furnace in garage with 3 ton evaporator coil and 3.5 ton condenser outside. Refrigerant level is fine but not working correctly indoor unit is flooding with refrigerant and outdoor unit is starving of refrigerant due to lack of airflow from undersized furnace and coil. Compressor is using a large amount of energy due to system not designed properly. System cools but not the way it should or how it will with a new properly designed system for the home.

Near Honeysuckle Pl, Los Altos, CA 94024
Brittany B.

Brittany B.

Performing AC maintenance on 2 systems, both 1998 Bryant condensers, for one of our certified members in Los Altos Hills. Cleaned up and tested refrigerant levels, inspected and tested safety and electrical components and made recommendations as needed. One system is struggling at this time, compressor motor is making a loud noise and pressures are fluctuating indicating that there may be noncondensibles in the refrigerant lines - no filter line drier in place.

Near Los Altos Rancho, Los Altos, CA 94024
Los Altos, CA - Performing AC maintenance on 2 systems, both 1998 Bryant condensers, for one of our certified members in Los Altos Hills. Cleaned up and tested refrigerant levels, inspected and tested safety and electrical components and made recommendations as needed. One system is struggling at this time, compressor motor is making a loud noise and pressures are fluctuating indicating that there may be noncondensibles in the refrigerant lines - no filter line drier in place.
Yvonne G.

Yvonne G.

Furnace as tune up

Near Cherry Ave, Los Altos, CA 94022
Los Altos, CA - Furnace as tune up
Yvonne G.

Yvonne G.

Furnace tune up and AC tune up

Near Cherry Ave, Los Altos, CA 94022
Los Altos, CA - Furnace tune up and AC tune up

Certified Heating & Air Conditioning
Certified Heating & Air Conditioning
5 star service! 71 reviews