First, Alekos replaced the condenser in our OLD Carrier A/C in July of 2024, which was installed in 1981 ! When our OLD system started making strange noises in July of this year, they came out again and said we needed a NEW HVAC system, which they installed on 08-01-25, after four days of no A/C ! Second, Alekos is very knowledgeable, and always answered my questions about our NEW system ! Third, they offer a financing plan which made it easy to purchase our HVAC system ! Finally, unlike other HVAC contractors I have worked with over the last ten years, both Michael and Alekos are great people, they always put their customers first, and I knew Ariston was the right choice to install our NEW system. I will recommend them to anyone who needs their HVAC system repaired or replaced ! read more

I have used Ariston for a few years and have had multiple successful interactions. We have had full hvac/heater/ac, instant whole house hot water heater, regular tank hot water heaters, mini-split heater/ac, all installed by Alekos and team. I fully recommend Alekos and his team. read more

They are super easy to work with and even after all was installed they were happy to make some changes that we requested.

My furnace had stopped working with what turned out to be a very simple fix. Ariston was the first company to respond to my yelp request, had a very reasonable service call fee, and came within 2 hours. Alejandro fixed my problem right away, and then offered a few tips for diy service on both the furnace and AC. read more

Ariston replaced both my furnace and AC earlier this year. Both are still working well so far. Their pricing was very competitive, and their service was impeccable. When an inspection issue came up from the city after the install, Ariston was very quick to rectify the situation and reschedule the inspection. Would recommend! read more

Alekos came a little early and did a thorough fall tune-up of our central heating system. All things checked out. He gave us a good analysis of what to expect in the next several years as our system starts to reach its 20th year in service. The system is working fine after the tune-up and the check-up cost us $150, which is a little higher than we've been paying in the past, but -- hey -- inflation...? read more

I picked Ariston to work on my property for three reasons; small business, great reviews and being a Mitsubishi Diamond Contractor. I am a local small business owner of a plumbing company and those factors are extremely important to me and my clients. Being trained by the manufacturer gives the end user confidence in that the installing contractor can repair the units they are installing. I had them install a ducted Mitsubishi heat pump system for my main house and did lineset connections,vacuum and startup on a Mitsubishi ductless system I installed. Michael has been responsive and Youcef is a wizard, I look forward to working with them in the future! read more

I had to relocate my vent fan and Ariston Heating/Cooling had the best customer service and had competitive prices! They came out really fast for the job. Aghiles and Alejandro did an awesome job and their work was really clean. Amazing job and highly recommend! read more

Ariston Heating and Cooling did a great job installing a ductlesss mini split system in my home. I picked Ariston since they are a small business with a strong presence in my local community, exceptional reviews, and status as a Mitshubishi Certified Diamond Contractor. Alekos was very responsive to questions, expertly "sized" the system, and offered a competitive price. Staff was professional and polite. Installation was smooth and hassle free. I would not hesitate to recommend them! read more

I have been very happy with Alekos and his team. When I got issue with my heat pump and reach out to them, the team trouble shoot the problem and installed a new heat pump. I value their hard work and responsiveness every time I reach out to them. I highly recommend you to go with Ariston Heating & Cooling for your HVAC needs. read more

I 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 more

I 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 more

Ariston Heating & Cooling - These guys know their stuff! - Heating & Air Conditioning/HVAC Near Me

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Great 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 more

We had Ariston replace three furnaces (two with AC) in our home September 2021. This review reflects two years of use and service. We have been impressed by a number of factors, but primarily communication, responsiveness, and support. Alekos came to visit and assess our needs. Was very patient discussing options and pros and cons. Pricing was a little more than others, but clearly offering a better product. Communication and follow up after the initial visit was excellent. There were some issues with initial installation which were addressed immediately and to my satisfaction. On the day of inspection, Alekos came personally to make sure everything went smoothly. We have been very happy with the performance of the system. However, I think the real strength with Ariston is the support and responsiveness. We had one issue about a year later. I called and it was addressed without delay. Owner came himself to address. I had another (unreproducible) hiccup this year, and again, they came out immediately to assess the system. I was not charged. I've been very happy that we chose Ariston. read more

I can say Ariston is the best heating and cooling company in Bay Area. I worked with one of the most expert technicians ( ALEKO ) in the world. I definitely recommend this company to all general contractors that need this trade in Bay Area. read more

Very accommodating; came right away to repair my elderly parents' air conditioning. Have decided to purchase a new unit with him as well. Recommend him highly. read more

We had an under functioning furnace unit that was running all the time. I finally decided to have someone come look at and they quickly found the problem and fixed it. They clearly know what they are doing unlike some of the furnace people we have used in the past read more

After receiving quotes from several very well qualified minisplit installers, I chose Ariston Heating and Cooling. Alekos was informative and not pushy. They came in with a competitive price on a premium brand. Ariston Heating & Cooling installed a Mitsubishi MSZ-WR on my 360 Sqft ADU. It was a clean installation with wires and tubes run neatly along the wall. The installers consulted me on placement of the unit inside and outside. The installers were very professional and polite. The installer was very meticulous and didn't rush to install but still finished quickly (6 hours including lunch and testing of the system). He also has a more junior installer with him. The senior installer was also a great teacher and the junior installer was eager to learn. I highly recommend Ariston. read more

As much as I like to support family run businesses, this needs to be said about this company. I called them to get my furnace evaluated after i got an error message while trying to install my nest thermometer. After a few attempts during normal business hours, I was able to get through and scheduled a visit. Although the employee was friendly and courteous he said the issue was that the control board and transformer was fried and needed to be replaced. The damage: $1600. Something felt off since the furnace was working totally fine before the nest install. I called another HVAC company who came the next day, laughed when I told them what I was told, and literally fixed the issue in 30 minutes... free of charge!! Look, I can understand if there was an error in diagnosing the problem, we all make mistakes but this was a bit ridiculous. My advice to everyone would be to seek out multiple opinions regarding your hvac system. The most frustrating thing about my encounter with this company was that it was impossible to get in touch with them. I called over 10 times over a span of a week to request a detailed receipt for their initial service and as well as a quote to replace the furnace entirely with AC. I left 3 voicemails and 2 emails with no call back or email response. read more

Ariston has fixed issues with my HVAC system twice now and both times I've been thoroughly impressed! Their pricing is fair, they take time to explain what they're doing (and why) and the quality of the work has been great. Highly recommend! read more

Ariston Heating & Cooling came to the rescue! We had contracted with another company that flaked out of the job... But that's another story. Michael and Alex - the business owners - came to our job, took detailed measurements, talked with us about the products and recommendations for sizing and equipment and then installed all new ducting, a heat pump and air handler. The workmanship was flawless, done in a timely fashion reasonably priced and very cleanly installed. All city and county inspections passed perfectly, and the inspector even mentioned what a nice job was done. The project was completed under the owner's watchful eye and works perfectly. I'd recommend Ariston for any HVAC project! read more

AC repair. Would use these guys again. The sales rep who called back was only 1 of 2 companies who would ballpark the potential problem based on a specific error message. This indicated both confidence and expertise. They charge a diagnostic fee, and that's credited against the repair cost, which is reasonable. [Even though I had a specific error message from the Nest thermostat, other contractors declined to provide feedback and would only quote a diagnostic fee to come out. Some of those diagnostic fees were in addition to the repair cost.] A tech was available same day as the sales call back (timely). Call ahead confirmed the appt time (professional). Face mask and shoe covers were in play (health). Had a couple issues that were each traced, fixed, and confirmed working (competence). This ensured the whole system was functioning as opposed to a partial fix (results). Questions were answered along the way, and conversations were friendly (info). Clean up of the work area was offered, but since it was Friday, we opted to do that ourselves (finishing touch). read more

We 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 more

Had 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 more

Excellent service and highly recommend this company! After suffering through another heat wave, I decided to finally install an AC unit. Since my home is built on a slab with half of the house with exposed beam ceiling, the only solution is a heat pump mini split system. So I called on a Wednesday, next day Thursday an estimator arrived (exactly on time), I accepted the bid and the installers came next day Friday (again exactly on time). Everyone from the office person to the estimator to the installers were completely kind and professional. In what world does this happen? So if you need a heating and cooling company, look no further than Ariston Heating and Cooling. By the way, I called another well know company and they said they could come out for an estimate in 4 weeks with installation 8 weeks out. read more

We were in the middle of a renovation and discovered a water heater flue pipe in a wall that was coming down. So I was looking for someone to re-route the pipe. I sent some photos to Ariston, and they gave me a great quote and had their team on site within a couple of days to perform the work. There was some minor damage to a wall that resulted from the work, and they came out and fixed it right away. Highly recommend! read more

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. read more

Great 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 more

I had a very positive experience working with Ariston Heating and Cooling. They are responsive communicators and return phone calls promptly. I never had to call them a second time which was a wonderful change from our previous contractor. Their staff are patient, skilled, polite, professional...I just can't say enough good things about them. I never got the feeling that they were rushing to complete my job so they could move on to the next (another welcome change!). At the same time, they completed the job in a timely manner. There were some minor, unanticipated issues that came up. Ariston promptly corrected them and stuck to the original quoted price. We got several quotes to install a Mitsubishi ductless mini-split system. Ariston was the lowest price yet still higher than I was planning on spending. I think this is a result of an overloaded construction industry that ultimately stems from the pandemic. All said, the system is beautiful and turned our hot bedrooms into sleeping refuges. Review of Mitsubishi mini-split: This thing is awesome! Incredibly quiet both indoors and outside. This was important for us since we live in a dense neighborhood and want to maintain good relationships with our neighbors. I love that the system does not cycle--It continually adjusts its speed to maintain the temperature. This avoids the periodic startup noise common in traditional systems. Note: I highly recommend the ceiling-style head units instead of the wall-mounted ones. Not only does it give the room a much cleaner look, but the routing of the cooling lines is much less obtrusive. They do cost more, but this change will most likely be forever so best to get it right. read more

Professional, expert, careful, and very fair pricing. Your solution for Trane or American Standard support. So great.

My 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 more

Michael we could not be happier with the service. You installed a new hvac unit in our home which was awesome. More recently you helped us on another home emergently when we had issues due to the massive rain. We could not recommend this team more. Exceptional service read more

Sad to be the one breaking the 5-star streak here, but my experience of Ariston really could not be worse, and warrants a review. Basically they held me up for a month citing stock issues, and when they finally came in for installation, they "discovered" additional duct work and attempted to up the price by another 6k! When I told them to pack and leave, they did so, but left the basement doors wide open, which I discovered 24 hours later, at which point rats already made themselves comfortable in my basement ducts. Thank you Ariston! Here's the full story: They came to my house for a site visit, looked at my HVAC and panel, and followed up with a quote. So far so good. They told me my heating unit would need to be rotated sideways to fit the coil, but that would be no problem. The quote was neither too high nor too low, middle of the pack. Given the good reviews, I decided to go with Ariston. When installation day approached however, I received a call informing me that the AC unit that was advertised to me was out of stock. I was given the option to wait 2 weeks, when it would come back in stock, or go with a more expensive model. I opted to wait. This already cost me 1 more heatwave without AC. However, the unit did not come into stock for another month (+2 more heat waves of 100+ F). On the day of installation, the crew showed up and proceeded to look at my HVAC system. Shortly after, a member informed me that "most of your ducts are metal", so they would need to be redone, which would cost another 6 thousand $. I thanked them for wasting my entire summer and said goodbye. read more

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. read more

Ariston 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 more

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! read more

Alekos 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 more

Alekos, Michael & crew recently installed a top of the line heat pump heating/AC system, new ducts, and heat pump water heater for us. From the initial visit to the final inspection everything went great. Communication was great, the crew was awesome, the work was top notch, and we are very happy with the new system! read more

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! read more

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 read more