
Walnut Creek is a city in Contra Costa County in the East Bay Region. It serves as a hub for neighboring cities because of its location at the junction of the highways from Sacramento and San Jose, and San Francisco/Oakland and its accessibility to BART. Walnut Creek’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, so having a reliable company for AC repair is important. Days can be cool in the winter, and furnace maintenance is important as well.
AC problems in Walnut Creek, 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? Here are some of the most common reasons why you might be needing a furnace repair:
- An airflow issue
- Old/leaky ductwork
- Aging parts
- Design problems
- Dirty air filters
Looking for heat pump services? The Certified Solar, Heating, and Air Conditioning team provides repair, replacement, and maintenance these high efficiency systems in Walnut Creek, CA and the surrounding areas. Make sure to ask us about available rebates! We even offer easy financing to help make working with us more affordable. Everyone deserves to have great home comfort and we’re happy to help!
Walnut Creek, CA Heating and Air Conditioning Services
If you own an air conditioning unit, heat pump, or furnace that requires installation, repair, or maintenance, you’ll need an expert to help. If your HVAC system has broken down and could potentially cause a hazard or a health risk, it is recommended to seek emergency repair service with a licensed technician. If you are looking for a reputable HVAC contractor in Walnut Creek, get in touch with the experts at Certified Heating and Air Conditioning to have your HVAC system serviced, repaired or replaced.
HVAC Services Provided By HVAC Contractors in Walnut Creek
Some other services offered by HVAC contractors are:
- Heating Services
You deserve a comfortable home. If the heating system in your home fails and a fix or replacement is required, our HVAC expert will tell you an appropriate solution to fix it. The HVAC expert will help resolve your heating issue and conduct preventative maintenance to ensure your heating system is working at its best.
- Emergency Services
An HVAC professional worthy of his reputation will offer same-day service and flexible schedules that fit your unique schedule, even if the issue occurs during the weekend, on holiday, or at the end of an evening on a weekday. If you need an air conditioning, heating, or air-ventilation emergency, the selected HVAC service should not wait more than 24 hours for a response.
- Air Ventilation Services
HVAC companies perform airflow testing and balance. They’ll check to ensure the HVAC system functions at its best and clear the air ducts of your building to ensure that the airflow is proper. You’ll feel secure being confident that the buildup inside the air ducts won’t be causing your cooling and heating systems to work longer than they have to.
- Air Conditioning Services
Our HVAC contractor in Walnut Creek will discover the exact issue of the root of your AC’s failure and will know precisely how to identify and resolve the issue. The HVAC technician will also regularly maintain your system’s air conditioner to extend its lifespan and improve its performance.
- Post-Service Support
The services offered by an HVAC contractor don’t stop after the HVAC system is cleaned, replaced, or repaired. They’re always there to help you whenever something goes wrong with your HVAC, whatever the issue is.
HVAC Maintenance Tips From Professional Contractors to Avoid Frequent Repairs
Here are some tips to avoid frequent repairs:
- Changing your filter at intervals of 30 and 90 days is recommended. A dirty filter means your system needs to work more to maintain your house at the desired temperature.
- Examine the outdoor unit regularly and ensure at least two feet of space around the HVAC unit or air conditioning heat pump.
- Minimize the usage of the HVAC system and switch it off the HVAC system for at least two hours to ensure your HVAC system lives a long life.
- You can mix bleach and one cup of water each time and pour it into the condenser drain to eliminate any buildup.
Certified Heating and Air Conditioning Experts
Call the experts at Certified Heating and Air Conditioning specializing in heating repair in Walnut Creek, CA. Contact us to book an appointment to have your HVAC system serviced and feel confident that it’s an investment that will pay off for many years to come.
Check out what our customers are saying about Certified Heating and Air Conditioning – Air Conditioning and Heating Services!
Local Reviews
for Walnut Creek, CA
Excellent service
June - Walnut Creek, CA 94598
Jeremiah was knowledgeable, explained the situation clearly, and corrected my AC problem efficiently. Thank you for sending him.
Walnut CreekCA94598 37.9075-122.0475 Response from Certified Heating and Air Conditioning:
Hi there June! We are so glad Jeremiah was able to repair your Air Conditioner during your diagnostic appointment! We strive to provide all of our valued clients with exceptional service. Thank you for sharing your positive experience with us!




Good job
Charles - Walnut Creek, CA 94598
Response from Certified Heating and Air Conditioning:
Hi Charles! Thank you for letting Diego perform your Air Conditioning Maintenance!




VERY Satisfied Customer!
Chris - Walnut Creek, CA 94598
The team just finished installing our new HVAC system today and I can’t begin to express how pleased I am with the professionalism and service from Wyatt, Josh and Nick. All three of them took the time to answer any questions I had during installation and they did it with a smile on their face every time. The installation and configuration of the system went exactly as they said and it only took just a day and a half to do it. Needless to say, I am very pleased with our new system — especially with all the new technology and capabilities, I’m looking forward to using my heater and air conditioner knowing it’s way more efficient than the previous system we had. I owe a great thanks again to Wyatt, Josh and Nick — you guys are true professionals and you absolutely know your trade very well! Chris
Walnut CreekCA94598 37.92-122.0175 Response from Certified Heating and Air Conditioning:
Hello Chris, We are so thankful for clients like yourself. We appreciate this awesome feedback. We hope you enjoy your new furnace & air conditioner system, Thank you for being a part of our Certified Family. -Certified Customer Care Team




Top notch team for sure! VERY satisfied!
Chris - Walnut Creek, CA 94595
This may not have been the best way to discover an HVAC contractor, but I just googled HVAC services near me and I started going down the list. When I came across Certified Solar, Heating & Air Conditioning I stopped. This is a very professionally run business. They coordinate very very well too. They have email and text notifications with confirmations and proactively reach out before they come including a picture of the person coming on-site (via text) so you know who’s at your door. The team answering the phones are very polite and very professional. Most importantly, to me they do what they say, and they say what they do. I had a technician show up to troubleshoot our air conditioning unit that was no longer getting cold. Long story short, I had a decision to either drop money into recharging my empty system with refrigerant, knowing there’s a leak, or look at replacing the much older system. I asked the technician when their sales specialist could come out to do an assessment on a new system. He made a phone call and Galen was at my house within 30 minutes. It must’ve been my lucky day because I thought I’d have to wait at least a day or two. Anyway, Galen is a mechanical engineer, and knows these systems in and out. His professionalism, demeanor, and knowledge really helped us make a decision to replace our system with ZERO pressure. Galen was very patient and stepped through the warranty, the services they offered and everything they would do step by step from start to finish. I was really impressed with his presentation. For our situation, financing was the best option, and they offer very attractive zero interest payment plans that tipped the scale for us to go forward. His team will be here in two business days and then we’ll have our new system! Can’t wait! We’ll no longer have to worry about saying to ourselves, is our air conditioning going to work this summer? I highly recommend them for your HVAC needs! Chris
Walnut CreekCA94595 37.885-122.0775 Response from Certified Heating and Air Conditioning:
Hello Chris, WOW! What a great review! We are happy to have clients like yourself. We strive to ensure our valued teammates like Galen provide the service that best fits our clients. Our office staff is always doing their best to make sure all clients are happy and understand all that we offer. Our family-owned company's motto is to be open, honest, and upfront about any situation. We do what's best for our clients. Welcome to our Certified Family! -Certified Customer Care Team




Job Well Done!
Barbara - Walnut Creek, CA 94597
Diego Cardoso of Certified Solar, Heating & Air Conditioning was professional, open to questions and informative in his answers. Diego represented himself and Certified Certified Solar, Heating & Air Conditioning with skill and a very pleasant professional manner
Walnut CreekCA94597 37.9125-122.0675 Response from Certified Heating and Air Conditioning:
Hi Barbara, Thank you for sharing this information about our teammate Diego, he is a gem. -Certified Customer Care Team




A+ Service
Fran Gibson - Walnut Creek, CA 94595
Mateo is awesome: he clearly explained his inspection results, is very positive and connecting and embodies the best in customer service!
Walnut CreekCA94595 37.85-122.0575 Response from Certified Heating and Air Conditioning:
Hello Fran, Thank you for this fantastic 5-star review! We are proud to have Mateo on our team. Mateo is great at going the extra mile when doing furnace & air conditioning tune-ups. We look forward to servicing you in the future! -Certified Customer Care Team




Excellent Service!
Todd - Walnut Creek, CA 94595
Lee and his team were great! Very professional and delivered the project exactly when he said he would. I definitely recommend Lee and the team!
Walnut CreekCA94595 37.8925-122.07 Response from Certified Heating and Air Conditioning:
Hi Todd, Thank you for sharing your review with us. We are happy to have you as a part of our certified family. We hope love to impress our clients! -Certified Customer Care Team




Yes excellent service
Lillian - Walnut Creek, CA 94598
Very good and informative.
Walnut CreekCA94598 37.9075-122.045 Response from Certified Heating and Air Conditioning:
Hi Lillian, Thanks for sharing your positive feedback. -Certified Customer Care Team.




Excellent Service!
Kristina - Walnut Creek, CA 94597
Diego was great. On time and very courteous.
Walnut CreekCA94597 37.91-122.07 Response from Certified Heating and Air Conditioning:
Kristina, Thank you for sharing your experience with our service technician Diego. We look forward to servicing you in the future. -Certified Customer Care team




Excellent Service!
Karen - Walnut Creek, CA 94595
Diego was awesome! Fixed the problem and was kind, courteous and professional!
Walnut CreekCA94595 37.8925-122.07



Jeremiah S.
In the Walnut Creek area performing an AC maintenance! This 10 year old Trane unit is running great! During the inspection we noticed a dual capacitor that was reading below the manufacture spec, which is never good! After explaining the concerns and possibilities, our client thought it was a great idea to replace this component! And he is right!


Jerod W.
Performed a diagnostic in the Walnut Creek area found broken wire fixed ac condenser back up and running
Jerod W.
Performed ac maintenance in Walnut Creek California had to replace a capacitor on condenser due to leaking oil it was covered under warranty. Looking forward to doing more work in the area
Jerod W.
Just installed a new a/c condenser fan motor for a client in Walnut Creek near oak road looking forward to doing more work in the future in the area
Chris L.
Came to fix air flow
If you are searching for reliable heater and AC repair in Walnut Creek, 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.
