Existing Furnace or AC Fail?
Factory-trained technicians to repair or upgrade your existing system
Fed Up With $$$ Utility Bills?
High efficiency mini split upgrade options that begin saving you money immediately
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.
Go Full Electric with Our Ducted and/or Ductless Heat Pump Options
Certified Mitsubishi Diamond Contractor.
- Ductless multi-zone systems 30% more efficient vs. conventional systems.
- Full variable inverter driven compressors.
- No more high gas bills!
State of the Art Convential HVAC Systems
American Standard Authorized Dealer
- Rated one of the top brands for reliability by consumer reports
- Patented, Duration Compressors designed to last a lifetime
- Patented Spine Fin Coil for Optimal Air Conditioning Efficiency
- Family Owned and Locally Operated Serving the East Bay
- Every project custom-designed
- Satisfaction and Workmanship always guaranteed
- References Available Upon Request
- Pet Friendly
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
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
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
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
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
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
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
Highly recommended and very reasonably priced. read less - 3/03/2018
Designers and Builders - We are full service from sketch to final inspection
Specializing in high efficiency and ZNE remodels and new construction, and advanced home automation projects - contact us for access to Portfolio links
Proudly Certified Mi-BEST A+ in all Residential and Lite Commercial Title 24 for 2020 -beyond
-Advanced Building Envelope and Duct Design
-Airflow and Static Pressures
-Refrigerant Charge Dynamics
-Quality Insulation Installation - QII
Don't Wait, Schedule a Free In-home Consultation Now!
Start living happier and healthier, and stop overpaying for comfort RIGHT NOW - we'll show you how easy and affordable it can be. Credit cards accepted.
We lovingly serve
Lamorinda, the Diablo Valley, Oakland-Brentwood Corridors and points beyond!