The Definition of Excellence

  The 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.

  I 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.

  Ariston 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.

  Ariston 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!

  I 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.

  Alekos 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.

  Ariston 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

  Alekos 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!

  It 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.

  Great job. My a/c went out during the 105 plus degree heat this summer.Ariston Heating and Cooling made time for me asap and were here on time and worked fast.

Gave me such a good deal on the a/c unit that I ended upgrading the heater as well.

  My 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!!!

  I 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.

  AMAZING! Meticulous work and honest business!! Alekos will take care of you! He and Lee did an amazing job overhauling our homes entire original 1970's heating and AC system. This company takes pride in there work and you can tell happy customers genuinely make Alekos happy!!! Once that AC kicked on I looked at him and said, "I think you might have just saved my marriage!!!" Support local small businesses and go with these guys!

  I can't say enough wonderful things about Alekos, Michael and Lee.  I had two companies "fix" my air conditioning issues.  Basically they charged a lot of money and did nothing.  I was at the point where I was just going to accept that I was never going to have a working air conditioning system.  I decided to try one last time and boy am I glad I did contact Ariston.  They are the best.  I now have air conditioning!!  I just wish I had called them first and sooner.  Don't call anyone else!

  Within the span of two hours, Alekos at Ariston returned my call, made an appointment, and diagnosed and repaired a wiring issue with my furnace, and at a great price. All while the first HVAC company I'd contacted a day earlier still hasn't called back. Can't recommend Ariston more highly.

  I 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!

  Alekos 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.

  Ariston HC installed our air conditioning unit, replaced our ducting, and installed a nest style thermostat and programmed it for me (it might actually be a Nest I really haven't touched it since it was programmed)... it was easy to schedule and they showed up on time.  They worked cleanly, quickly, and quietly... we have had zero issues with the unit.  I highly recommend this company to anyone looking for HVAC services.

  I 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.