HVAC Service in Danville, CA

The Town of Danville is located in Contra Costa County, California. It is one of the incorporated municipalities in California that uses “town” in its name instead of “city”. Danville’s warm summer Mediterranean climate is typical of California’s interior valleys. In summer, high pressure leads to near unbroken sunshine and virtually no precipitation. Days start out cool but quickly warm up, with high temperatures normally in the 80s Fahrenheit. Temperatures of 100 °F or hotter occur numerous times during heatwaves.
AC problems in Danville, CA and Contra Costa area seem to spring up at the worst possible time, creating a degree of urgency for them to be fixed. Luckily, your local Certified technician is more likely than not to diagnose and fix your problem on the first visit. We keep a large percentage of parts stocked at our warehouse, helping to ensure quality and fast turnaround time. We live up to our name, by offering a 24-Hour Fix-It Guarantee!
Is your AC unit blowing warm air? The most common causes are typically:
- An overdamping compressor
- Capacitor failure
- Low refrigerant
These can be interrelated issues. For example, a unit running on low refrigerant can put more issues on the compressor. Certified Heating and Air Conditioning has more than 20 years of experience in diagnosing and treating common AC problems.
Furnace problems in the East and North Bay area seem to spring up at the worst possible time, creating a degree of urgency for them to be fixed. Luckily, your local Certified technician is more likely than not to diagnose and fix your problem on the first visit. We keep a large percentage of parts stocked at our warehouse, helping to ensure quality and fast turnaround time. We live up to our name, by offering a 24-Hour Fix-It Guarantee!
Is your unit feeling colder than normal? There are many causes:
- An airflow issue
- Old/leaky ductwork
- Rodent issues
- Design problems
- Dirty air filters
Danville, 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 Danville, CA
Excellent service
Anna - Danville, CA 94506
Oh what a wonderful technician. Love Jackie and certified
DanvilleCA94506 37.805-121.92 Response from Certified Heating and Air Conditioning:
Hi Anna! Thank you so much for your review! We are so happy you are fond of Jackie & love being able to be of service to you!




Jaclie
Ernie - Danville, CA 94506
Jackie Green demonstrated her patience in analyzing the noise problem emanating from the attic portion of the HVAC system and determining the course of action to apply to resolve it.
DanvilleCA94506 37.7975-121.8975



Great service!
Leslie - Danville, CA 94506
On time. Good communication to confirm the appointment and to let me know when they were on their way.
DanvilleCA94506 37.7975-121.8775



quick service well done
Kathy - Danville, CA 94526
Brittany was tireless in trying to diagnose our problem. Hard-working and efficient.
DanvilleCA94526 37.845-122.0125



Awesome
Helena - Danville, CA 94506
She was amazing. Do anything to keep her
DanvilleCA94506 37.825-121.9225



Great quick service
Halena - Danville, CA 94506




Great job!
Mike - Danville, CA 94526
Quick, clean furnace install. Professional and polite crew. Definitely would recommend Certified! Thanks.
DanvilleCA94526 37.795-121.9725



Exceeded expectations in every way
Scott - Danville, CA 94506
From beginning to end Tyler, Zach, and Noah were professional, respectful, courteous, and highly competent. They addressed all my questions and concerns. Tyler even helped me change a flat tire on my car ! We are very pleased with our new heating and air conditioning system as promised.
DanvilleCA94506 37.8025-121.9125



Wyatt C.
Day 1 of installing all new Zoning in Danville, Ca. Can’t wait for our clients to be able to condition their home to perfection!
Lee J.
We came back to ensure all tasks and testing were completed, due to clients having obligations to handle yesterday I reached out to management to setup for us to come back and get the job 100% finalized. We ensured that all modes were working perfectly and that the job will be ready for inspections. With the completion of the install the clients will be able to have ac for this summer season. We look forward to being able to make a difference in our communities
Lee J.
Here in the Danville area performing a furnace, ac, and coil replacement. During the removal the riser ducts for the supply duct that goes upstairs had fell apart in the wall, also the return plenum fell down as well, so before I was able to start doing g the new install, I ensured that all issues were taking care of. We will now be able to finish tomorrow with only a half days of work


Jackie G.
Starting off the day with an ac maintenance. This is a Goodman unit around 25 years old. This unit has r-22 refrigerant, a refrigerant that is now obsolete. We did a full cleaning . Looks like no one has cleaned it properly in a long time! So of coarse we made sure it was done properly today! Preventative maintenance are so important! Checking out of Danville ca!


Jackie G.
Today we started off with a filter change/ cleaning. We have a filter program designed for clients who have a hard time changing their own filters.Maybe our filter is under the house or in the attic, sometimes filters are hard for clients to reach . Sometimes we just forget all about the filter and need a reminder before it damages our machine. Certified has your back! Checking out of Danville Ca!

If you are searching for reliable heating and AC technicians in Danville, give Certified Heating and Air Conditioning a try. We have established a solid customer foundation in Contra Costa county over the past four years because of our dedication to the customer backed by numerous guarantees. We are home of the FREE second opinion, so if you feel like you’ve been treated unfairly by another company, call us – our family-owned, family-run company will bring you in and treat you as our own.
