AIS Heating & Air Conditioning

In AIS Heating & Air Conditioning's own words

AIS is your full-service HVAC expert, trusted for residential AC, heating, and air quality since 2008. We handle everything from emergency AC repair and furnace installation to duct sealing and heat pump maintenance. We're locally operated, treating every customer like family. We provide transparent, no-surprise pricing and performance-backed work. Get superior quality, clear communication, and guaranteed satisfaction for all your heating and cooling needs. We are also a Diamond Certified company! Schedule service with the certified team that puts your comfort first.

Trade

HVAC contractor

Business address

4432 Enterprise St Ste a, Fremont, CA 94538

Telephone

(510) 738-0252

Website

aisheatingandair.com

Hours

• MondayOpen 24 Hours
• TuesdayOpen 24 Hours
• WednesdayOpen 24 Hours
• ThursdayOpen 24 Hours
• FridayOpen 24 Hours
• SaturdayOpen 24 Hours
• SundayOpen 24 Hours

From the business's Google listing, checked Oct 2026

Register

CA register

Recorded as supplied and as found in public sources. This register makes no credential or quality claim about any business; check license status with the state board.

Google Reviews

4.9 ★★★★★ (857)

• Jose Arroyo provided excellent service. Filter changed. Cleaning done! All set for upcoming winter season. Thank you Stated "not sure" on price as: (no charge - 6 month follow up included in annual fee)

  Joyce N.★★★★★

• I was very fortunate to get an appointment today from AIS for service issue in my HVAC today. Mr Brenham Purves was the technician who attended my issue and he was very through and kind enough to answer all my questions. He did a through job in fixing the issue and helped me give an economical plan to protect my HVAC in future. Thanks.

  Kamlesh M.★★★★★

• There simply aren’t enough positive adjectives to describe our experience with Taylor Yenny .He was exceptionally personable, knowledgeable, professional, and incredibly informative throughout the entire visit. He diagnosed the problem with our AC quickly and had it repaired and functioning again within just a couple of hours. He took the time to explain what was happening, answer all of our questions, and make sure we understood both the issue and the solution. It was clear that he genuinely cared about doing a thorough job rather than simply getting in and getting out. He is an absolute asset to the AIS organization, and we couldn’t have been more impressed with his expertise, work ethic, and customer service. We would highly recommend him and AIS Heating & Air Conditioning to anyone looking for someone they can trust.

  Christine H.★★★★★

• Does a thorough job

  Steve W.★★★★★

• AIS was prompt, quick, and well versed in repairs to my HVAC. Great Service technician too!

  Brian H.★★★★★

• Outstanding customer service

  Allen D.★★★★★

• October 6, 2025 ⭐️⭐️⭐️⭐️⭐️ Art always returned every phone call and email promptly. I appreciate how much time, effort, and importance he placed on our order. Thanks again to him and his Team for their professionalism and excellent job. October 14, 2025 ⭐️⭐️⭐️⭐️⭐️ For our experience with AIS Heating and Air Conditioning Company, I am extremely impressed with the technicians, Fausto and Abel. Before the installation, they communicated with us thoroughly, patiently listening to our needs and offering professional advice. They addressed the removal of an old Gas Furnace and replaced it with a new Heat pump system. They worked hard, climbing into the attic and crawling through tight spaces, and did an excellent job. Once the system was in place, they carefully explained to us how to operate it. They are very professional and knowledgeable about the Heat Pump system. The installation looks tidy, and they did a fantastic job cleaning the site. Thanks again for their hard work and excellent job. I would highly recommend them and the AIS Team to anyone interested in Heat Pump installation. The final Heat Pump installation exceeded our expectations. Awesome! Sept. 21, 2026 ⭐️⭐️⭐️⭐️⭐️ We had a great experience with AIS Heating & Air Conditioning. Jose Arroyo was very professional, friendly, and helpful. He took the time to explain everything clearly and made sure everything was working properly before he left. We really appreciate his excellent service and would highly recommend him and AIS!

  Daniel S.★★★★★

• I am redoing my review, because the last one I gave was given a year ago when we were considering going with AIS. In the end we decided to go ahead with it, and the unit that they installed was delivered and installed expectations. They even made a secondary visit when an inspector found a slight problem. I do have concerns that they are a little bit pricier than other options, but I do believe in Price and performance metrics. And in that regard, I think AIS performs better than most others. In short, if I needed another air conditioning system, wouldn't hesitate to go back to them.

  Timothy R.★★★★★

• Good service

  Bill W.★★★★★

• Brenham conducted a thorough inspection of our heat pump and furnace. He cleaned the system, checked key parameters, and fully documented the readings. He also answered all my questions and gave great recommendations for long-term maintenance. Highly recommended!

  Srirang L.★★★★★

• Excellent, explanations, fair price, independently owned, personally recommended by a friend.

  Bill H.★★★★★

• Top notch! Brenham went out of his way to please me, extremely friendly and professional.

  Eric R.★★★★★

• Efficient and courteous service and Brenham was a great communicator

  gary M.★★★★★

• Great service start to end. Very professional! Highly recommended!!

  Preetinder G.★★★★★

• Very friendly and professional company. Excellent communication. I would recommend using them.

  Kevin A.★★★★★

• We recently hired AIS Heating & Air Conditioning to replace our aging furnace and install a brand-new AC unit, and the entire experience was outstanding from start to finish. The crew arrived right on schedule, fully equipped, and worked efficiently to complete the full installation in just a single day. Beyond the main unit setup, they took the extra time to thoroughly inspect our existing system, proactively identifying and resolving several minor issues with our ductwork, loose taping, and vent airflow. Before wrapping up, they walked us through every feature of our new smart thermostat, making sure we felt completely comfortable programming and managing it. The pricing was transparent and fair, with zero unexpected charges or hidden fees. Best of all, the performance upgrade is immediate—our house now reaches a comfortable temperature within minutes. We could not be happier with the quality of their work and highly recommend AIS to anyone needing HVAC services!

  CHUNGPING L.★★★★★

• Taylor pays really attentions to all the details

  Terence C.★★★★★

• We have used their yearly maintenance plan for rmany years now and been very pleased. The technician that visited us recently was Jose Arroyo. He was very polite and efficient. Thank you for your consistently great work. (Editted for typos!)

  Susan P.★★★★★

• Taylor Yenny fixed the intermittent problem we were having with our new AC not turning on. He identified quickly it was not the AC but old thermocouple wiring that was left behind. Sure enough the plastic covering on the wires was gone causing occasional shorts. AC working fine now after the wires replaced ...

  Stan H.★★★★★

• Jose A. Did a great job inspecting our system, listening to our concerns, and offering solutions. I did feel a little upsold, though he’s probably right that I should invest in the extra equipment he recommends.

  Nicole C.★★★★★

• Jose Arroyo was our service man and he did an excellent job. He was very professional and explained his findings on two separate units on our home. We had two HVAC systems maintenances. He was very polite and a pleasure to have as a provider service.

  Maria S.★★★★★

• We’ve had such a great experience with this company. Everyone we’ve worked with has been incredibly friendly, knowledgeable, patient, and helpful, even when the problem turns out to be very simple! Highly recommend.

  Amelia P.★★★★★

• My technician, Joseph Arroyo was considerate of my house (wore booties, etc) and explained everything he was doing as he went along. The office was great in alerting me that he might be a bit later than originally thought which gave me a chance to get out for a bike ride without worrying if I would miss him. They also alerted me when he was on his way which I appreciated.

  laurie M.★★★★★

• JR was great in explaining all the things I should consider as well as personable and knowledgeable. Great service!

  Andy P.★★★★★

• Great service from AIS! The technician was very friendly and professional. He clearly explained the issue, presented different repair options with transparent pricing, and respected my choice with zero pressure. He answered all my questions patiently and got my AC working perfectly. Highly recommend!

  Will C.★★★★★

• They were able to repair my AC unit same day. They were very friendly and knowledgeable.

  Chris★★★★★

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About Fremont

Sources: U.S. Census Bureau. NOAA U.S. Climate Normals 1991-2020.