Los Altos, CA Heating and Air Conditioning

Los Altos, CA Heating and Air Conditioning Services

Check out what our customers are saying about Certified Heating and Air Conditioning – Air Conditioning and Heating Services!

Local Reviews
for Los Altos, CA

Certified Heating and Air Conditioning Rated 5.0 out of 5 stars based on 1 customer reviews

Map of Los Altos, CA 94022

Thorough service




Review of Certified Heating and Air Conditioning

I was busy in a Zoom class while he was here, but got up a few times and was happy with what he was doing.

Los AltosCA94022 37.3875-122.1

Diego C.

Diego C.

In Los Altos this afternoon doing a furnace maintenance and a dryer vent cleaning for the Connell residence. They’ll be nice and warm this winter after this maintenance. Dryer vent also cleared out to prevent any house fire.

Near Spargur Dr, Los Altos, CA 94022
Los Altos, CA - In Los Altos this afternoon doing a furnace maintenance and a dryer vent cleaning for the Connell residence. They’ll be nice and warm this winter after this maintenance. Dryer vent also cleared out to prevent any house fire. Los Altos, CA - In Los Altos this afternoon doing a furnace maintenance and a dryer vent cleaning for the Connell residence. They’ll be nice and warm this winter after this maintenance. Dryer vent also cleared out to prevent any house fire.
Brittany B.

Brittany B.

Discussing replacement options with Certified member who decided to move forward with replacement. We will soon be installing a new, for more efficient system and look forward to bringing client comfort for many years to come. Thank you for choosing Certified!

Near Quinnhill Rd, Los Altos, CA 94024
Los Altos, CA - Discussing replacement options with Certified member who decided to move forward with replacement. We will soon be installing a new, for more efficient system and look forward to bringing client comfort for many years to come. Thank you for choosing Certified!
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