5040 Commercial Circle, Unit C
Concord, CA 94520
(925) 438-8367

Have any feedback for us? We'd love to hear it! Call us at (925) 326-6232 and let us know how we are doing.


Local Reviews
for san ramon, ca

Rated 5.0 out of 5 stars based on 9 customer reviews

Excellent service

Diagnosed the root cause and did great service


Response from Certified Heating and Air Conditioning:

Hello Amod, Thank you for sharing your review. -Certified Customer Care Team

  • Overall Experience
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Great service

Tech Diego, nice guy, did a great job


Response from Certified Heating and Air Conditioning:

Hello Paul, Thank you for sharing your review.- Certified Customer Care Team

  • Overall Experience
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  • Price
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Great service

Great service!


Response from Certified Heating and Air Conditioning:

Hi Rennee, Thank you for sharing your review! -Certified Customer Care Team

  • Overall Experience
  • Quality
  • Price
  • Convenience

Great Service

Very prompt service. Diego is a pleasure to work with.


Response from Certified Heating and Air Conditioning:

Hello Renee, Thank you for sharing your review of our great teammate Diego! - Certified Customer Care Team

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Great service

Excellent customer service; knowledgable, polite and caring technician that is not cutting the corners and doing it right.


Response from Certified Heating and Air Conditioning:

Hello Yuriy, We are here to provide great service for clients like you. -Certified Customer Care Team

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Regular Maintenance.

Diego was on time, worked quickly and efficiently… and said hi to all my cats!

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Great Service

Galen and Jeremiah were great! Very professional, knowledgeable, clean and honest. Galen explained to me in details on what was going on with our heating system, while Jeremiah was checking everything out. Thank you Galen and Jeremiah for your services!

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Great Service

Brittany is courteous and professional. She was on time and got the job done.

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Great Maintenence check up!

Tyler was extremey nice, very informative, and answered all my questions.

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Job Locations
for san ramon, ca

Ben C.

Ben C. Job Checkin

Completed furnace repair, replaced gas valve and client now has working heat


Diego C.

Diego C. Job Checkin

In San Ramon, California this afternoon performing a furnace maintenance for the Limesand residence.

In San Ramon, California this afternoon performing a furnace maintenance for the Limesand residence.

Diego C.

Diego C. Job Checkin

In San Ramon, California performing a maintenance for the Turenne residence!

In San Ramon, California performing a maintenance for the Turenne residence!

Galen  S.

Galen S. Job Checkin

I am in San Ramon, California to discuss central heating and cooling options for a home that is planning a 700 sqft addition

I am in San Ramon, California to discuss central heating and cooling options for a home that is planning a 700 sqft addition

Diego C.

Diego C. Job Checkin

In San Ramon, California performing a filter change for the Tandon residence.

In San Ramon, California performing a filter change for the Tandon residence.

Diego C.

Diego C. Job Checkin

In San Ramon, California this afternoon performing both an a/c tune up and furnace tune up for the Ford residence!

In San Ramon, California this afternoon performing both an a/c tune up and furnace tune up for the Ford residence!

Galen  S.

Galen S. Job Checkin

I am in the Windemere neighborhood of San Ramon, Ca. At this home the compressor is tripping the breaker and causing the system to malfunction.

I am in the Windemere neighborhood of San Ramon, Ca. At this home the compressor is tripping the breaker and causing the system to malfunction.

Galen  S.

Galen S. Job Checkin

I am in San Ramon, California to discuss replacement options for a central gas furnace and air conditioning system with a heat pump system

I am in San Ramon, California to discuss replacement options for a central gas furnace and air conditioning system with a heat pump system

Galen  S.

Galen S. Job Checkin

I am in San Ramon, California to discuss replacement options for a central heating and cooling system. The homeowner is interested in heat pump options as well as replacing the existing gas furnace and air conditioning unit

I am in San Ramon, California to discuss replacement options for a central heating and cooling system. The homeowner is interested in heat pump options as well as replacing the existing gas furnace and air conditioning unit

Galen  S.

Galen S. Job Checkin

I am in San Ramon, California to discuss replacing a central air conditioning system

I am in San Ramon, California to discuss replacing a central air conditioning system

Eric S.

Eric S. Job Checkin

In San Ramon, CA performing an A/C maintenance and safety furnace check for the Razdolskiy residence. Their 8 year old system is ready and prepared for the summer heat!

In San Ramon, CA performing an A/C maintenance and safety furnace check for the Razdolskiy residence. Their 8 year old system is ready and prepared for the summer heat!

Jeremiah  S.

Jeremiah S. Job Checkin

In the San Ramon area performing an AC maintenance!


Diego C.

Diego C. Job Checkin

In San Ramon, California this afternoon. The Ko residence now have proper cooling after I diagnostic today!

In San Ramon, California this afternoon. The Ko residence now have proper cooling after I diagnostic today!

Galen  S.

Galen S. Job Checkin

In San Ramon, California to discuss replacing a 35 year old system with a Daikin heat pump system.

In San Ramon, California to discuss replacing a 35 year old system with a Daikin heat pump system.

Galen  S.

Galen S. Job Checkin

I am in San Ramon to look at upgrading a central gas hvac system to a high efficiency heat pump system.

I am in San Ramon to look at upgrading a central gas hvac system to a high efficiency heat pump system.