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AIS Heating & Air Conditioning

Fremont HVAC Companies
Ranked #4 in Fremont | Grade B+
4.90 (771 reviews)

AIS Heating & Air Conditioning

Local HVAC contractor handling repairs, replacements, and maintenance for heating, cooling, and air quality needs with clear communication and organized service.

Why Homeowners Choose This Business

Clear explanations before work begins, options presented without pressure, and organized install crews that respect your home. Strong track record for responsiveness, steady communication, and efficient troubleshooting.

Service Area

Serving Fremont and nearby Bay Area neighborhoods.


How This Business Compares

A quick local comparison based on review strength, business detail, and local service fit.
  • Maintains a competitive standing in this market.
  • Shows review activity that is competitive for this local market.
  • Shows strong customer satisfaction signals based on review quality and volume.

Trust Signals

Licensing - LIC 1098502

Services Covered

  Renovation Services
  HVAC repair
  AC Repair
  Furnace Repair
  Maintenance
  Heat pump installation
  Installations
  HVAC Maintenance
  Repairs
  Air Conditioner Installation
  Heating installation
  Indoor Air Quality
  Thermostat Replacement
  HVAC Diagnostics
  Ductless Mini-Split
  Coil Cleaning

Heating and cooling diagnostics and repair, new system installation and replacement, routine maintenance and tune-ups, heat pump and furnace service, AC cleaning, air quality and filtration assistance.


Reviews

Recent Reviews

4.90

(Based on 771 reviews)

Reviews frequently highlight technicians who explain issues clearly and present repair options before proceeding. Many customers mention quick turnaround from diagnosis to installation and courteous, on-time visits. Communication and responsiveness from the office and field staff are recurring themes. Some note pricing as premium but aligned with the thorough work performed.

Google Review
William Chang (William) on AIS Heating & Air Conditioning

The technician was professional and clearly explained the issue with my AC system. He showed me the dust buildup on the evaporator coil that was causing the odor and performed a thorough cleaning. The problem was resolved and the system is working well again. The service was a bit pricey, but the work was done professionally and I appreciated the clear explanation.

Both visits were excellent. Pete diagnosed the problem yesterday, ordered the part and installed it today. The system is working and it is warming up the house. Pete is friendly yet focused on his job. We both were very impressed with his professional behavior. Daniel's visit was great. No pressure, just lay it all out. We chose the top of the line heat pump system and are having it installed on Jan 9. All in one day. Again, we appreciate the quick response and the chance to visit with the owner and learn a little more about the company.

Zack was great. Very personable and efficient. He was able to diagnose our problem and advise of possible repairs prior to repairing. Repairs were completed quickly and he was able to preform maintenance on heater. He was able to inspect our heating system for future needs. Terrific service person. We will definitely continue to use AIS.

Google Review
Roberta “Bobbi” Parry on AIS Heating & Air Conditioning

AIS was excellent. Leon taught me how to change the filters and then performed an inspection of our furnace. Leon was very respectful and knowledgeable. I appreciate his service. I always like to use a family-owned business, and I was not disappointed.

I want to add that 2 weeks after my annual check up - I had an issue with my heater, and AIS was EXTREMELY responsive and came out to ensure that nothing they did impacted my heater. As it turned out, I had broken my thermostat, and Pete from AIS fixed my issue, and my heater is working again.

10 out of 10 stars for service - I am very impressed with AIS

Google Review
Daniel Allan B Saul on AIS Heating & Air Conditioning

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.

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!

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Frequently Asked Questions

AIS services furnaces, air conditioners, and heat pumps for homes and many small businesses. They also assist with air quality components such as filters and related cleanliness concerns. If your system is older or unusual, they can evaluate and advise on repair versus replacement. Scheduling a diagnostic visit is the best first step.

Technicians typically diagnose the issue and explain findings on-site before work begins. They outline available options and associated costs so you can choose how to proceed. Customers often mention that recommendations are low-pressure and transparent. Written estimates are provided for larger projects.

Yes, the team installs new heating and cooling systems, including heat pumps. They can assess your home, discuss efficiency and comfort goals, and schedule installation after you approve the plan. Many installations are organized efficiently with clear timelines. Post-install walkthroughs and basic operation guidance are commonly provided.

Technicians can inspect coils, filters, and drainage to identify sources of odors or dust buildup. Cleaning and maintenance often resolve these issues and may improve airflow. They can also discuss filtration or related upgrades suited to your system. A diagnostic visit will determine the most effective approach.

Availability varies by season, but reviews often note fast responses and timely arrivals. For urgent issues, calling is recommended to check the next open window. For planned installs, they coordinate dates and keep you updated on parts and scheduling. Online contact is also available through their website.
 Verified Listing

Opening Hours


  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

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Business Details


Business Rating
4.90 (771 reviews) FeaturedPro Business
Address
4432 Enterprise St suite a, Fremont, CA 94538
Phone
Business Type
general_contractor

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