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 fremont, ca

Rated 4.4 out of 5 stars based on 11 customer reviews

Excellent and friendly

Ben gave excellent service and was helpful by answering our questions.


Response from Certified Heating and Air Conditioning:

Hello Thea, Thank you for sharing your review on our teammate Ben. He loved to make clients like yourself happy with his awesome service skills! -Certified Customer Care team

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Great service


Response from Certified Heating and Air Conditioning:

Hello Annie, Thank you for your review! -Certified Customer Care Team

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Regular schedule Maintenance

Benjamin Carter is great technician and great skill of work and experience.


Response from Certified Heating and Air Conditioning:

Hello Sharwar, Thank you for sharing your review on our teammate Bemjamin! -Certified Customer Care Team

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Consultation for installation of two heat pumps

Today was consultation only. Everything was well explained. Quote for work to follow.

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Excellent service

Mateo is so thorough, professional and I appreciate his expertise. He is definitely an asset to the company. Thank-you Mateo, see you next time.

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Great service!

Diego is a very knowledgeable and positive guy. He took care of the AC, explained every step, and clearly knew what he was doing.

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My AC Servicing

You missed our first appointment. However, you were right on time for the next. I really liked your service tech. He explained everything.


Response from Certified Heating and Air Conditioning:

Hi there Kurt! I am so sorry for the miscommunication on our end resulting us in missing the first appointment. We are so grateful you allowed us to make it right. We have passed this situation on to our leadership team and will ensure our team is coached on this matter to prevent this from happening again. As always, thank you for being a valued client!

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Excellent Service!

Mateo was very professional and detailed in his service . He was on time and inspected every artifact of the system and ensured there was no build up and ensured that the heating/AC was in excellent running condition ! Thank you !


Response from Certified Heating and Air Conditioning:

Hi Rajesh! Thank you so much for your amazing review! Thank you for allowing Mateo to do the maintenance on your Air Conditioner. We are ecstatic Mateo provided you with excellent service!

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Excellent service

Fully satisfied with Jeremiah’s work ethics & professionalism.

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Good Work but...................

The work was done as told and promised. but the work place was not cleaned and messy, They broke the attic cover panel and did not bother to fix it. But they are very prompt in collecting the payment. They can still do a better service.

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Tyler was great!

Had a tune up special and Tyler identified an issue we didn't know we had. Not a giant expensive fix, but a small issue that over time would have caused problems. Same day appointment, super pleasant office person on the phone, simply excellent. Will use you guys again. Thank you!

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Job Locations
for fremont, ca

Ben C.

Ben C. Job Checkin

Completed annual furnace maintenance for club client


Diego C.

Diego C. Job Checkin

In Fremont, California this afternoon performing a furnace maintenance for the Morales residence.

In Fremont, California this afternoon performing a furnace maintenance for the Morales residence.

Ben C.

Ben C. Job Checkin

Completed furnace tune up and added client to our maintenance plan


Ben C.

Ben C. Job Checkin

Completed x2 furnace tune ups, identified potential issues and offered solutions


Ben C.

Ben C. Job Checkin

Completed annual furnace maintenance for valued club member


Galen  S.

Galen S. Job Checkin

I am in Fremont, California to look at replacing a gas furnace with a heat pump system.

I am in Fremont, California to look at replacing a gas furnace with a heat pump system.

Diego C.

Diego C. Job Checkin

In Fremont, performing a diagnostic for a honey ho,es client!

In Fremont, performing a diagnostic for a honey ho,es client!

Ben C.

Ben C. Job Checkin

Completed annual furnace maintenance for club client


Galen  S.

Galen S. Job Checkin

I am in Fremont, California to discuss adding a heat pump to a current gas furnace system. This will convert the unit to a hybrid system

I am in Fremont, California to discuss adding a heat pump to a current gas furnace system. This will convert the unit to a hybrid system

Galen  S.

Galen S. Job Checkin

I am in Fremont, California to discuss replacing central gas furnace and air conditioning systems with high efficiency heat pumps. We discussed technologies and efficiencies of new equipment. I was also able to get his current system running in the meantime.

I am in Fremont, California to discuss replacing central gas furnace and air conditioning systems with high efficiency heat pumps. We discussed technologies and efficiencies of new equipment. I was also able to get his current system running in the meantime.

Mateo L.

Mateo L. Job Checkin

I just completed a air conditioning maintenance for my client, Linda! I was very happy to see that her fan is so clean, it looks like it just came out of the factory! :D

I just completed a air conditioning maintenance for my client, Linda! I was very happy to see that her fan is so clean, it looks like it just came out of the factory! :D

Diego C.

Diego C. Job Checkin

In Clayton, California this afternoon performing a pump down for the Terentyez residence. There system was over charged with refrigerant so we reclaimed the over amount and their system is fully operational!


Diego C.

Diego C. Job Checkin

In Fremont, California this afternoon performing a a/c maintenance and furnace safety check for the Polinsky residence. There system is ready to go for both heat and cooling season!

In Fremont, California this afternoon performing a a/c maintenance and furnace safety check for the Polinsky residence. There system is ready to go for both heat and cooling season!

Diego C.

Diego C. Job Checkin

In Fremont, California this afternoon performing a a/c maintenance for the Schaefer residence. There 3 year old system was scheduled for a preventative maintenance today!

In Fremont, California this afternoon performing a a/c maintenance for the Schaefer residence. There 3 year old system was scheduled for a preventative maintenance today!

Mateo L.

Mateo L. Job Checkin

I’m in Fremont doing a air conditioning maintenance for my client, Rajesh. I was very happy to see the system so clean including the blower fan, the air filter, and the outside condenser! We will continue to monitor and maintain this system to keep it running as long as possible! :D

I’m in Fremont doing a air conditioning maintenance for my client, Rajesh. I was very happy to see the system so clean including the blower fan, the air filter, and the outside condenser! We will continue to monitor and maintain this system to keep it running as long as possible! :D