The Top HVAC Contractor in Pacheco, California Serving Orinda, Lafayette, Walnut Creek, Alamo, Pleasant Hill & the Surrounding Communities

Existing Furnace or AC Fail?
Factory-trained technicians to repair or upgrade your existing AC 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.
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Ductless multi-zone systems 30% more efficient vs. conventional systems.
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Full variable inverter driven compressors.
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No more high gas bills!
State of the Art Convential HVAC Systems
American Standard Authorized Dealer
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Rated one of the top brands for reliability by consumer reports
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Patented, Duration Compressors designed to last a lifetime
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Patented Spine Fin Coil for Optimal Air Conditioning Efficiency

Personal Attention
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Family Owned and Locally Operated Serving the East Bay
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Every project custom-designed
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Satisfaction and Workmanship always guaranteed
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References Available Upon Request
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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
• Building Ventilation
• 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.
Ariston Heating and Cooling is centrally located near downtown Pacheco, near the important landmarks of Emerald Glen Park, Todos Santos Plaza and Lesher Center for the Arts. If you haven't been to the downtown Pacheco neighborhood, you're missing out on a lot. Our office is located just a few blocks away from this area that boasts numerous hundred-year-old buildings, as well as a vast array of high-end retail establishments, restaurants, and entertainment venues.
Pacheco is an unincorporated community in Contra Costa County, California, located in the San Francisco Bay Area. Pacheco is situated between the cities of Martinez and Concord, and is bordered by State Route 4 to the north and south and Interstate 680 to the east. Some amazing landmarks in the area include Galindo Home Museum & Gardens, Vista Montañas Park, Hidden Valley Park and Contra Costa Country Club.
This makes Ariston Heating and Cooling (conveniently located on Center Ave) a centrally located licensed contractor that specializes in installation, repair, and maintenance of heating, ventilation, and air conditioning systems for residential and commercial properties. They also offer services for indoor air quality, duct cleaning, and energy-efficient solutions. Ariston proudly serves cities throughout Contra Costa County, including the surrounding communities and cities of Pleasant Hill, Clyde, Vine Hill,, Maltby, Walnut Creek and Alhambra Valley, California.
Directions
- Click here for driving directions from your location.
- Directions From Oakland International Airport to Ariston Heating and Cooling, 111 Center Avenue Suite M Pacheco, CA 94553: Get on I-880 North from 98th Avenue for 5 minutes. Continue on I-880 North. Take CA-24 East and I-680 North to Burnett Avenue in Concord. Take exit 52 from I-680 North for 27 minutes. Take Diamond Boulevard, Concord Avenue and Contra Costa Boulevard to your destination in Pacheco for 5 minutes.
- Directions From Buchanan Field Airport to Ariston Heating and Cooling, 111 Center Avenue Suite M Pacheco, CA 94553: Head South on Marsh Drive for 0.3 miles. Continue onto Center Avenue 0.1 miles.
Ariston Heating and Cooling is the top HVAC contractor in Pacheco, California proudly serving Contra Costa County homeowners:
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Diamond Certified local family-owned licensed, insured, and bonded C20 contractor
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Full Electric options with our ducted and/or ductless heat pumps
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HVAC systems including American Standard authorized dealer products
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Services offered: AC installs, AC repair, furnace repair, heat pump repair, heat pump mini split repair, heat pump installment, full electric install
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Specialize in top-of-the-line heat pumps such as smart home, integrated high-efficiency upgrades, hybrid and dual-fuel solar-optimized systems, air conditioners, ducting, and indoor air quality
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Custom-tailored experience with open end dates and a dedication to customer satisfaction
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Help increase property value, decrease utility bills, and elevate home's comfort, convenience, and wellness
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Schedule a free consultation with Ariston today for excellence in heat pump installation and service!
We lovingly serve
Lamorinda, the Diablo Valley, Oakland-Brentwood Corridors and points beyond!