30+ Years of Excellence: Trust Ariston Heating and Cooling for Expert AC Repair
AC Failing or Making Noise?
Our Factory-trained technicians will repair or upgrade your existing AC system in as little as 2 days
Fed Up With $$$ Utility Bills?
A broken or lagging AC system can be costing you hundreds of dollars a month in utility bills.
Ready To Upgrade Your Standard Of Living?
Enjoy truly modern comfort, convenience, and Indoor Air Quality
We Earned the Diamond Certified Award!
98% Approval Rating based on an independent, random sample of over 400 past customers.
Why Choose Ariston Heating & Cooling
- Certified, Licensed and Professional: We are one of Contra Costa Counties ONLY Certified Mitsubishi Diamond Contractor.
- Experience: In business since 1988, we've seen and fixed it all.
- Energy Efficiency: Repairing your AC unit will improve its energy efficiency, reducing your utility bills and environmental footprint.
- Cost Savings: Our AC repair services can save you money by addressing minor issues before they escalate into major and more expensive repairs or the need for a complete replacement.
- Prompt and Reliable Service: Our skilled technicians are committed to providing timely and dependable AC repair services, getting your system back up and running as quickly as possible.
- Peace of Mind: Trusting Ariston Heating and Cooling for your AC repair needs means you can enjoy peace of mind, knowing that your cooling system is in the hands of reliable professionals.
- Customer Satisfaction: Our primary goal is your satisfaction. We strive to exceed your expectations with our exceptional AC repair services, leaving you with a cool and comfortable home environment. Check our reviews on Google & Yelp!
Sarah M.
Great customer service! All my needs were met when working with them. All of the employees are super professional. I... read moreGreat customer service! All my needs were met when working with them. All of the employees are super professional. I had my heating/cooling system redone with them. Reasonable prices and the installs are AMAZING. These guys KNOW what they're doing. They are legit! 100% recommend Ariston heating and cooling! read less - 7/09/2022
James K.
We replaced all of our heating ductwork under the house. Needed to remove asbestos coated ductwork and installed new duct... read moreWe replaced all of our heating ductwork under the house. Needed to remove asbestos coated ductwork and installed new duct system. Ariston price was very competitive and all of their commitments were met. We are very satisfied with their work and all of the people associated with project were very nice. read less - 6/13/2022
Kyle D.
Ariston did fantastic quality work for a new heat pump installation at my home. Their quote was very fair and... read moreAriston did fantastic quality work for a new heat pump installation at my home. Their quote was very fair and everyone was wonderful to work with. They were able to start work just a week after signing off on the quote, and the work was completed a half a day early. We were very pleased with the crew - all were kind, conscientious, and cleaned up their work areas very thoroughly each day. I'd definitely hire them again for any future hvac work I may have. read less - 1/02/2022
Jon L.
Had a few quotes, these guys beat everyone. Did what they said they would with no issues. Very satisfied with... read moreHad a few quotes, these guys beat everyone. Did what they said they would with no issues. Very satisfied with the work and would recommend them to anyone. read less - 8/26/2021
A R.
My home had a 25 year old heater and we wanted to upgrade to a more efficient new gas heater,... read moreMy home had a 25 year old heater and we wanted to upgrade to a more efficient new gas heater, or an electric heat pump. I contacted 4 HVAC companies with good ratings and got pricing for both, including upgrading our old asbestos ducts with new ones. Michael and the Ariston team had the most competitive quotes, and they also installed the best HVAC brand per Consumer Reports (American Standard). Given the Bay Area air quality problems, I also went with a high-end air filtration system that was hospital grade. The crew was on-time, efficient, and considerate - kudos to Alekos and his team for being so professional. After it was installed, the independent test found that it worked with high efficiency and I received a city permit shortly after for our new system. I couldn't more highly recommend Ariston - they are excellent, the best. read less - 8/11/2021
Sean B.
I just used Ariston to replace my furnace and add AC to our house. They quickly gave me a quote... read moreI just used Ariston to replace my furnace and add AC to our house. They quickly gave me a quote after coming by and looking over my place. It took them just over two days to do the work. They were professional and friendly. The project went pretty smoothly, and our new system is working well so far.
Overall, no complaints at all. They were great at communication, provided a reasonable quote, and the work took as long as they originally forecast. read less - 5/05/2021
The Dude A.
Professional, expert, careful, and very fair pricing. Your solution for Trane or American Standard support. So great. - 1/24/2021
Aimee T.
Great service ! They came and got the job done in a timely manner. During the pandemic it is very... read moreGreat service ! They came and got the job done in a timely manner. During the pandemic it is very nerve wrecking to have people come to our home, but they were very respectful of covid guidelines. They left the house clean and I had no complaints. They are very knowledgeable about their products. read less - 1/16/2021
Stephen C.
I did my research - had 3 vendors come to estimate the cost of installing mini split A/C units in... read moreI did my research - had 3 vendors come to estimate the cost of installing mini split A/C units in my house. I ended up going with Ariston because of their value, professionalism, speed of communication, and willingness to go above and beyond to ensure we would have no issues with the local permitting office. The work went smoothly, the crew was friendly and professional, and I now couldn't be happier with how it turned out! They were incredibly accommodating and pleasant to work with. Alekos, Michael, and the entire team were very clear communicators throughout the whole process, did top-quality work, and made a potentially stressful project as stress-free as possible. So happy with having fully-functioning A/C now. I cannot recommend them highly enough!! read less - 10/18/2020
Tony F.
Excellent job. They arrived 5 minutes early, handled the problem and articulated what i should do to maintain the... read moreExcellent job. They arrived 5 minutes early, handled the problem and articulated what i should do to maintain the system very well. Also had a friendly attitude. Highly recommend. read less - 5/27/2020
Joshua B.
Alekos and his team replaced our furnace, A.C., and HVAC ducting throughout the house, and have been by several times... read moreAlekos and his team replaced our furnace, A.C., and HVAC ducting throughout the house, and have been by several times since to make tweaks to heat ratios, clean filtration, and follow-up on little issues that have arisen. They weren't our cheapest option, but we went with them based on their sterling reviews. Very pleased with their responsiveness, professionalism, and absence of haggling on follow-up services. read less - 5/22/2020
Cynthia S.
I can't believe I haven't published my review! Alekos is great! He's replaced four furnaces in our apartment building and... read moreI can't believe I haven't published my review! Alekos is great! He's replaced four furnaces in our apartment building and did such a great job we had him do the entire hvac system for the remodel of our home! Needed a tankless water heater, well, he can do that too. For reliable service at a competitive price you cannot go wrong with this company! read less - 12/17/2019
Jennifer B.
My husband and I live in an older home in Concord and have been suffering through the brutally hot summers... read moreMy husband and I live in an older home in Concord and have been suffering through the brutally hot summers without central heat and air until now! Ariston Heating and Cooling to the rescue! I can't say enough GREAT things about Alekos, Eric and the team at Ariston. From day one they have been helpful, professional, communicative and responsive. They provided an estimate to us that we thought was very fair, took A LOT of time answering all of our questions, and completed the job in the time frame they promised. They were a true pleasure to work with and the product is amazing! We are SO comfortable in our home now, it has made an amazing difference to our quality of life. Thank you guys SO MUCH for everything!!! read less - 9/08/2019
Chad R.
Alekos and his team member Michael came out to diagnose some clanging we experienced with our relatively new American Standard... read moreAlekos and his team member Michael came out to diagnose some clanging we experienced with our relatively new American Standard A/C unit. They were friendly and professional and explained our system and what maintenance it required to keep it in top shape. Ariston is a top operation, they responded promptly and professionally to our inquiry and we highly recommend them for any of your HVAC needs. read less - 6/21/2019
Greg M.
The team was super friendly and helpful, diagnosing the problem, fixing on the spot, and gave reasonable estimates for recommended... read moreThe team was super friendly and helpful, diagnosing the problem, fixing on the spot, and gave reasonable estimates for recommended future work. Minus one star as I've tried now getting back in touch with them for several days to complete follow up work and have received no response. read less - 6/19/2019
Greg S.
Alekos was very quick in responding to my request for a quote (maybe 10 minutes?). was at the house within... read moreAlekos was very quick in responding to my request for a quote (maybe 10 minutes?). was at the house within two hours, put a workaround in place to get the furnace running, and was back the following morning with the new part for the permanent fix. All in all very prompt, friendly, complete and reasonably prices service. Next time i need HVAC service these are the guys I call. highly recommended. read less - 4/05/2019
Niles L.
I really enjoyed meeting Eric, he responded quickly to my Yelp quote request and came back with a proposal that... read moreI really enjoyed meeting Eric, he responded quickly to my Yelp quote request and came back with a proposal that was much more reasonable than others. He was great to work with and replaced a condensation pump and look forward to working with them again. read less - 1/26/2019
Billy P.
Alekos and his team are fantastic! After hearing about their different options for us, which were explained in great detail... read moreAlekos and his team are fantastic! After hearing about their different options for us, which were explained in great detail weighing the pros and cons of all the different types of systems, we had them install a new high efficiency furnace and AC unit. It was great to work with a team that took the time to thoroughly walk us through all of our questions from start to finish. They were clean and respectful of our house, indoors and out, even considering the heavy rains that were pouring down throughout the install (furnace closet is located outside!). Ductwork and all of the hardware is all neat and tidy in our cramped little closet. We got a complete rundown of our new Nest thermostat explaining the features and how to best use it with our lifestyle/needs.
I'm a DIY type of guy for most projects, but, I'm very glad I made the choice to go with these guys for this task! read less - 11/30/2018
Beth H.
Ariston was way above and beyond what I expected from a customer service level. Eric was incredibly helpful. On time,... read moreAriston was way above and beyond what I expected from a customer service level. Eric was incredibly helpful. On time, friendly, reponsive, and professional. If I could add stars, I would. Fantastic job! read less - 10/25/2018
Jeremy C.
I am a GC, electrical, and solar contractor, and these guys are #1! We have used them on our... read moreI am a GC, electrical, and solar contractor, and these guys are #1! We have used them on our projects a bunch of times. From small troubleshooting to full system replacements, they are absolute perfection! Quality equipment, quality installations, and top notch customer service! Small 900sf full systems, to custom high end Eichler projects, they have been consistently a pleasure to work with. read less - 10/02/2018
K V.
I can't say enough good things about this company. Eric, Alekos, and team are by far the absolute best that... read moreI can't say enough good things about this company. Eric, Alekos, and team are by far the absolute best that one could hope for in all areas of professionalism, honest advice, and expertise in home heating-n-cooling matters.Before we needed any actual service, we'd connected with them for a consultation on a furnace question. Even though we weren't getting any work done with them at the time, Eric was super helpful and totally non-pressurey in letting us know what our options were.
A short while later when our aging water heater kicked the bucket, we turned to Ariston immediately. We had them replace it with a tankless model and they did an awesome job and were so lovely to work with.
Before, during, and after the water heater replacement, Eric was a constant source of support and he kept us informed every step of the way. When another contractor we were working with at the same time was cutting corners and treating us like crap, Ariston went above and beyond to help us get an adjacent issue related to our gas line taken care of. Eric also handled all of the City of Berkeley's many hoops with grace, patience, flexibility, and a sense of humor. We were actually sad when our project ended since we wouldn't be able to talk to Eric anymore because he's such an awesome dude!
Owning a home is often a pain in the neck: Things break and need fixing all the time. Many if not most contractors are total sheisters, ripping you off and making you feel like crap every step of the way. But not, Ariston -- they are the complete opposite -- a shining light of professionalism, expertise, and happiness. 5 stars isn't enough. They really deserve 10. read less - 7/22/2018
sean m.
I got referred to Artisan from a friend that had a new system installed recently. I had a older... read moreI got referred to Artisan from a friend that had a new system installed recently. I had a older system that was having some problems with the pilot light consistently burning out and lots of leaks in my system. I called another company previously before talking to artisan and they told me that I needed to replace my whole unit because it was too old. Everything worked I just had a couple of leaks and pilot issues. Long story short I called artisan and spoke to the owner and he was out here within a couple days and sealed my system and fixed my issue without replacing my unit. He even went a step further and made some recommended upgrades that cost very little to help save money and keep my house cooler. If you are considering a HVAC company I highly recommend them . Very happy long lasting customer here. And when my old unit does go out I know exactly who I will be calling. read less - 7/18/2018
Ross S.
Ariston recently replaced the vintage 1960 furnace in our duplex. Eric came out to give the estimate. He... read moreAriston recently replaced the vintage 1960 furnace in our duplex. Eric came out to give the estimate. He provided a host of options and made recommendations that best suited the job. He knows his stuff and is willing to spend as much time as necessary to answer questions. Follow up emails were promptly returned with straight forward answers and professional opinion.Alekos, the owner, did the installation himself. He is a friendly, personable young man. The work was completed pretty much in a day with a return visit for the city inspection. His price was very reasonable.
Highly recommend. read less - 3/30/2018
Mirela S.
Ariston Heating and Cooling installed for us a new ductless heating and cooling system. We highly recommend them, their... read moreAriston Heating and Cooling installed for us a new ductless heating and cooling system. We highly recommend them, their price was very reasonable, they were very professional, punctual and finished their work on scheduled time. All we can really say is that they are the best heating and cooling company around. Eric went over board to accommodate us with all our needs considering that everything was on a last min call.
Mirela&Robert read less - 3/12/2018
Victor M.
It was a Saturday and heater was broken. I called and they were prompt, professional and took care of my... read moreIt was a Saturday and heater was broken. I called and they were prompt, professional and took care of my problems without having to replace my furnace. Highly recommended and very reasonably priced. read less - 3/03/2018
Don't Let a Broken AC Ruin Your Day! Call Now for Fast and Reliable AC Repair.
Don't Delay, Fix Your AC Today! Schedule Your AC Repair Service with Ariston Heating and Cooling.
FAQ for AC Repair
There can be several reasons why your AC unit is not cooling as it should. It could be due to a refrigerant leak, a malfunctioning compressor, clogged air filters, or a faulty thermostat. Our skilled technicians at Ariston Heating and Cooling can diagnose the issue accurately and provide the necessary AC repair to restore your unit's cooling performance.
Regular maintenance is essential to keep your AC unit in optimal condition and prevent unexpected breakdowns. It is generally recommended to schedule professional AC maintenance at least once a year. However, if your AC unit is older or used extensively, more frequent maintenance checks may be necessary. Our experts can assess your specific needs and provide a maintenance plan tailored to your system.
Keep an eye out for the following signs that may indicate your AC unit requires repair:
- Insufficient cooling or uneven temperature distribution
- Strange noises, such as grinding or rattling
- Foul odors emitted from the unit
- Frequent cycling or short cycling
- Leaking or pooling water around the unit
- High humidity levels indoors If you notice any of these issues, it's advisable to contact Ariston now to assess and address the problem promptly.
While some minor issues can be resolved by homeowners, it's important to exercise caution when attempting AC troubleshooting. Simple tasks like checking the thermostat settings, replacing air filters, or ensuring the circuit breaker is not tripped can be done by homeowners. However, more complex tasks involving electrical components or refrigerant handling should be left to trained professionals. Attempting repairs without proper knowledge can worsen the problem or even pose safety risks.
The duration of an AC repair service depends on the complexity of the issue and the specific circumstances. Some repairs can be completed within a couple of hours, while others may take longer, especially if specialized parts need to be ordered. Our technicians strive to provide efficient and timely repairs while ensuring the highest quality workmanship. They will provide an estimated timeline during the initial evaluation of your AC unit.
Absolutely! At Ariston Heating and Cooling, we take pride in our team of highly trained technicians who are certified and experienced in handling a wide range of AC repair services. They undergo regular training to stay updated with the latest industry advancements and possess the expertise to diagnose and fix AC problems efficiently. Rest assured, your AC unit will be in capable hands.
If your AC unit is deemed beyond repair or if it is more cost-effective to replace it, we offer reliable AC replacement services. Our experts will assess your cooling needs, recommend suitable options, and provide professional installation services. We work with trusted brands to ensure you receive a new AC unit that is energy-efficient, reliable, and tailored to your home or business.
We lovingly serve
Lamorinda, the Diablo Valley, Oakland-Brentwood Corridors and points beyond!