A 100% Guarantee Heating & AC LLC.

4.9
340 reviews

About

HVAC Contractor
A 100% Guarantee Heating & AC - Your HVAC Energy Efficiency Experts! At A 100% Guarantee Heating & AC, we are the leaders in making your home more energy-efficient. With our HVAC services, we provide exceptional solutions that optimize comfort while reducing energy consumption. Our skilled technicians deliver reliable installations, repairs, maintenance, and replacements, prioritizing your needs and budget. Count on our innovative and eco-friendly HVAC solutions to lower your carbon footprint. Fully licensed, insured, and committed to your safety, we deliver professional service with a 100% satisfaction guarantee. Experience our excellence in energy efficiency today! The job is done right. That's A 100% Guarantee.

Location

A 100% Guarantee Heating & AC LLC.
3305 Aldridge Rd, Vacaville, CA
95688, United States

Hours

Reviews

4.9
340 reviews
5 stars
326
4 stars
6
3 stars
1
2 stars
0
1 star
7
  • DC
    Dee Caddell
    Aug 21, 2025
    5.0
    My AC quit working and my home warranty service contacted 100% Guarantee Heating and AC Service to detect the problem. An appointment was promptly setup and their technician diagnosed the problem expertly. The repair was made in a timely manner and my AC works perfectly now. I am very pleased and highly recommend this company.
  • JS
    Jay Spitzen
    Jul 21, 2025
    5.0
    I've used A 100% several times now, for projects big and small. They are very responsive and do excellent work for a reasonable price.
  • AO
    Akin Orhun
    Jun 13, 2025
    5.0
    We have Bryant Heat Pump. It was failing and displaying need for technical service. I called Richard’s Airtech, installer of the unit. Technician came, opened its cover, checked its circuit board and reset its switches and charged $150 for a work that lasted about 40 minutes. The unit failed again that night. This time after doing some research on-line I called @ A 100% Guaranteed Heating & AC”. Owner arrived promptly checked the unit, fuse nearby, circuit brake, etc. for almost an hour. He determined that the fuse nearby the unit was for 60 amps yet the circuit brake was old and rated 50 amps. He also measured on rush current and found it to be 119 amp. Upon checking wire connectors at the circuit brake he found remnants of arching. He came next day with a new circuit brake rated for 60 amps yet, cleaned wire connectors and installed new circuit brake. The unit is functioning properly. For two hours of labor plus new circuit brake he charged $239.74 which is very reasonable. He is very thorough and experienced. I hight recommend his services. Akin Orhun
  • LM
    Lorraine Mac
    Jun 1, 2025
    5.0
    A-100 Guarantee is a wonderful company to work with. This A-100 Guarantee has gone above & beyond-always professional, friendly & always helpful with answering any questions I might have. I’m thankful for the maintenance plan I signed up for. I trust A-100 -100 Percent! I would advise others to call this company for your needs.
  • AC
    Amy Coleman
    May 13, 2025
    4.0
    Evan and his team were great. I had done HVAC replacement and the ducts could finally be done. However, there were some hiccups with painting fixtures, vents and delivery. Who was going to do what. I was pleased with how it turned out. Communication could be improved. I also was a bit Leary of the 3rd party vendors that complete the inspections. There was a lot of information as to the necessity of this. Maybe a law passed that I was unaware of and believe this piece needs to be more clear.