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 oakland, ca

Rated 5.0 out of 5 stars based on 29 customer reviews

Great service

Ben was exceptional in diagnosing my wall heater issues. His thorough examination of each crucial mechanism showcased his dedication to getting it right. Furthermore, his same-day availability and timely service were greatly appreciated. I highly recommend Ben for his expertise, meticulous approach, and commitment to resolving HVAC concerns.

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Another great experience

Ben was extremely courteous and thorough


Response from Certified Heating and Air Conditioning:

Hello Ralph, Thank you for sharing your review of our teammate Ben, We are glad to be of service! -Certified Customer Care Team

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Excellent Service

Ben was friendly, courteous and very professional. Ben performed a Bi-Annual Maintenance Service on my heating system. He explained the recommended services verbally in detail with pictures. Ben answered my questions, provided two (2) written estimates to give me an option. I would recommend Ben for your Technician. Ben was great!


Response from Certified Heating and Air Conditioning:

Hello Pearl, Thank you for the review of our teammate Ben. We are glad to provide great service for your annual maintenance. -Certified Customer Care Team

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Diego was amazing

Diego was amazing! Professional, lovely, and great results!!!

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Great service

Diego was excellent, and all of the customer service communication was helpful and quick.


Response from Certified Heating and Air Conditioning:

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

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Happy customer

Very happy with service. Will consider you when we are ready to replace our system. Ben was great!


Response from Certified Heating and Air Conditioning:

Hello Suzzane, We are glad you got the pleasure of meeting our teammate Ben. We are here for you for any future services you may need. -Certified Customer Care Team

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Amazing service!

Great technician!

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Great

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Yearly service

Fantastic technician and very nice person


Response from Certified Heating and Air Conditioning:

Hello Stanley, Thanks for your 5-star review! - Certified Customer Care Team

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Great service

Great service!


Response from Certified Heating and Air Conditioning:

Hello Stanley, Thanks for your 5-star review! - Certified Customer Care Team

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Mateo Lavin Is Terrific

Mateo was on time, respectful, extremely pleasant, well-spoken, and efficient. He explained what he did and why. Well done.


Response from Certified Heating and Air Conditioning:

Hello Lori, We appreciate your feedback on our great teammate Mateo. We love hearing this from our clients. -Certified Customer Care Team

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Excellent service!


Response from Certified Heating and Air Conditioning:

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

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Excellent service

Diego was fast and professional.


Response from Certified Heating and Air Conditioning:

Thank you for allowing Diego to perform the preventative maintenance on your HVAC units!

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Always a good experience!

As always, great service and a kind and informative service person! Thanks, Diego!


Response from Certified Heating and Air Conditioning:

Hi Kathi! Thank you for sharing your positive experience with Diego during your Air Conditioning Maintenance!

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Awesome technician and overall service

Jackie was thorough and made sure to explain everything to me. I'd welcome another visit from Jackie! I also really appreciated how on top of things the office was. They made sure to call me ahead of time to let me know when my technician was coming and sent a picture of her as well, which I really appreciated for safety reasons.


Response from Certified Heating and Air Conditioning:

Hello Alexandra, Thank you for the review. We value our teammate Jackie as you do. We are here to make sure we take care of our clients like yourself when performing any HVAC services. -Certified Customer Care Team

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Job Locations
for oakland, ca

Diego C.

Diego C. Job Checkin

In Oakland, California this afternoon performing a furnace maintenance for the Beard residence.

In Oakland, California this afternoon performing a furnace maintenance for the Beard residence.

Ben C.

Ben C. Job Checkin

Performed diagnostic on 33 year old wall furnace. Diagnosed issue and restored equipment to proper working function.


Ben C.

Ben C. Job Checkin

Perform safety inspection on new equipment to address smell. Ensured everything was still operating safely and properly.


Diego C.

Diego C. Job Checkin

In Oakland, California this afternoon performing a furnace maintenance for the Clayton residence.

In Oakland, California this afternoon performing a furnace maintenance for the Clayton residence.

Ben C.

Ben C. Job Checkin

Completed annual furnace maintenance for club client, addressed airflow issue to child’s bedroom


Diego C.

Diego C. Job Checkin

In Oakland, California this afternoon performing a diagnostic for the Bishop residence.

In Oakland, California this afternoon performing a diagnostic for the Bishop residence.

Ben C.

Ben C. Job Checkin

Completed annual maintenance for valued maintenance plan client


Ben C.

Ben C. Job Checkin

Completed annual furnace maintenance for valued club client


Ben C.

Ben C. Job Checkin

Completed annual furnace maintenance for valued club client


Ben C.

Ben C. Job Checkin

Completed diagnostic for 36 year old wall furnace, restored system’s functionality and heat to home


Ben C.

Ben C. Job Checkin

Completed repairs on furnace for values club member home is now heating. Happy clients and cats.


Ben C.

Ben C. Job Checkin

Completed repairs on 16 year old Goodman furnace for club client

Completed repairs on 16 year old Goodman furnace for club client

Diego C.

Diego C. Job Checkin

In Oakland, California this afternoon performing a blower cleaning for the Parker residence.

In Oakland, California this afternoon performing a blower cleaning for the Parker residence.

Diego C.

Diego C. Job Checkin

In Oakland, California this afternoon performing a furnace maintenance for the Kienitz residence!

In Oakland, California this afternoon performing a furnace maintenance for the Kienitz residence!

Diego C.

Diego C. Job Checkin

In Oakland, California performing a tune up for the Ortiz residence!

In Oakland, California performing a tune up for the Ortiz residence!