San Mateo, CA Heating and Air Conditioning

San Mateo, 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 San Mateo, CA

Certified Heating and Air Conditioning Rated 4.5 out of 5 stars based on 2 customer reviews

Map of San Mateo, CA 94402

A good feeling




Review of Certified Heating and Air Conditioning

I felt comfortable that representatives were advising me in my best interest.

San MateoCA94402 37.53-122.3325

Map of San Mateo, CA 94403

Quick, Honest Diagnostic of an Old Furnace




Review of Certified Heating and Air Conditioning

Heard about Certified Heating & AC on the radio, decided to give them a call - we just moved into an older house with furnaces that hadn't been inspected in many years. Brittany was super-efficient and gave us the facts & options to move forward. Just what we needed. Thanks!

San MateoCA94403 37.55-122.2925

Chris  R.

Chris R.

Performed tune up on furnace, operating upon arrival Checked filter, two in line with each other. Removed second filter to prevent further damage to blower motor and heat exchanger Furnace not installed up to code, no safety drip leg on gas and no fused electrical safety switch Cleaned burners and flame sensor, checked hot surface igniter Blower motor leaking oil and dirty (see recommendations) Blower capacitor below manufacturer specifications higher chance of failure Heat exchanger has thermal stress Inducer motor noisy and at higher than rated amperage higher chance of failure Asbestos ductwork taped into air distribution box Furnace operating upon completion

Near Alhambra Rd, San Mateo, CA 94402
San Mateo, CA - Performed tune up on furnace, operating upon arrival 
Checked filter, two in line with each other. Removed second filter to prevent further damage to blower motor and heat exchanger 
Furnace not installed up to code, no safety drip leg on gas and no fused electrical safety switch 
Cleaned burners and flame sensor, checked hot surface igniter 
Blower motor leaking oil and dirty (see recommendations)
Blower capacitor below manufacturer specifications higher chance of failure 
Heat exchanger has thermal stress 
Inducer motor noisy and at higher than rated amperage higher chance of failure 
Asbestos ductwork taped into air distribution box 
Furnace operating upon completion
Chris  R.

Chris R.

Performed diagnostic on heat pump that is not cooling or heating properly. Found system low on R22 refrigerant, added one pound R22 and balanced. System operating properly at this time, if system begins to stop heating or cooling and leak search will be required

Near N El Camino Real, San Mateo, CA 94401
San Mateo, CA - Performed diagnostic on heat pump that is not cooling or heating properly. Found system low on R22 refrigerant, added one pound R22 and balanced. System operating properly at this time, if system begins to stop heating or cooling and leak search will be required
Chris  R.

Chris R.

Diagnostic on a broken Day and Night natural draft furnace from 1990. Discovered failed control board, and due to age, efficiency, and cost of repair and future repairs client elected to replace the furnace with a more efficient and far more reliable system. Client became a maintenance member to ensure the new system runs safely and efficiently. Thank you for choosing Certified!

Near Crippleridge Ct, San Mateo, CA 94402
San Mateo, CA - Diagnostic on a broken Day and Night natural draft furnace from 1990. Discovered failed control board, and due to age, efficiency, and cost of repair and future repairs client elected to replace the furnace with a more efficient and far more reliable system. Client became a maintenance member to ensure the new system runs safely and efficiently. Thank you for choosing Certified!
Chris  R.

Chris R.

Furnace tune up on Payne natural draft furnace from 1974. Informed client of safety concerns with gas line coming into furnace, as well as poor efficiency. Cleaned burners and pilot assembly, checked all electrical components, gas valve and pressure. Due to age, efficiency and condition recommended upgrading furnace to gain reliability and lower cost to run system

Near Houndsridge Ln, San Mateo, CA 94402
San Mateo, CA - Furnace tune up on Payne natural draft furnace from 1974. Informed client of safety concerns with gas line coming into furnace, as well as poor efficiency. Cleaned burners and pilot assembly, checked all electrical components, gas valve and pressure. Due to age, efficiency and condition recommended upgrading furnace to gain reliability and lower cost to run system
Brittany B.

Brittany B.

Performing tune up on 2 furnaces; 2003 Payne and 2004 Carrier. Made minor repairs and performed in depth cleaning to coil on Payne unit. Client became our newest certified members to continue with annual maintenance to protect their furnaces and keep them running as long as possible.

Near Countryside Dr, San Mateo, CA 94403
San Mateo, CA - Performing tune up on 2 furnaces; 2003 Payne and 2004 Carrier. Made minor repairs and performed in depth cleaning to coil on Payne unit. Client became our newest certified members to continue with annual maintenance to protect their furnaces and keep them running as long as possible.
Yvonne G.

Yvonne G.

26 point inspection furnace tune up

Near E Santa Inez Ave, San Mateo, CA 94401
Yvonne G.

Yvonne G.

Near E Santa Inez Ave, San Mateo, CA 94401
Yvonne G.

Yvonne G.

26 point inspection furnace tune up

Near E Santa Inez Ave, San Mateo, CA 94401
Brittany B.

Brittany B.

Furnace tune up

Near Bayshore Fwy, San Mateo, CA 94403
San Mateo, CA - Furnace tune up