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Promax Service Group

Top Pro

Licensed
Licensed
Free on-site estimate


Responds in about 2 hours


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About
Promax Service Group is your trusted HVAC contractor and expert electrician in the Bay Area, providing expert installation, repair, and maintenance services for residential and commercial properties. Our experienced technicians are equipped to handle any HVAC or electrical problem, from emergency system installations to repairs, ensuring optimal indoor comfort and energy efficiency. With a commitment to delivering high-quality solutions at affordable prices, Promax Service Group goes the extra mile with a 10% discount on first service and a free service call for every HVAC installation or repair.
Overview

Current Top Pro

Hired 183 times

1 similar job done near you

Background checked

License verified

5 employees

2 years in business

Business hours

Sun9:00 am - 5:00 pmMon8:00 am - 8:00 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, Venmo, and Zelle.

Social media

Instagram

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

Top Pro Icon

2025

Credentials

License verified

C20 – Warm-Air Heating, Ventilating And Air-Conditioning Contractor

License state: CA

Background checked

Passed by Ganna Tkachova on Sep 16, 2024.

Services offered
Work needed
System type

Split system

Packaged system

Other

Building height

Single-level

Two-story

Projects and media
Projects and media
Reviews

Customers rated this pro highly for work quality, professionalism, and punctuality.

Excellent 4.9

73 reviews

5

97%

4

2%

3

0%

2

1%

1

0%

This pro's rating is a combination of reviews posted by customers both on and off of Thumbtack. Thumbtack cannot verify external reviews.

Read reviews that mention:


pro avatar
Dimitre P.

Dec 13, 2025

Hired on Thumbtack

ProMax replaced old furnace and air-conditioning unit with a new 4 head mini-split system. Slava did initial evaluation and estimate, he was very knowledgeable, experienced and was spot on on how linesets and other communications should be routed. Installation took about 2 days and was very clean and professional. I will highly recommend for any HVAC needs.

Details: Replace an existing A/C unit • Split system • I already have the A/C unit • As recommended by the professional • Ground floor • 1,000 - 2,000 sq ft • Two stories • Townhouse

Promax Service Group's reply
Thank you so much for taking the time to share your experience, Dimitre! We’re glad to hear that Slava’s initial evaluation and recommendations were helpful and that the installation process met your expectations. Our team takes great pride in delivering clean, professional work, and it’s wonderful to know that the 4-head mini-split system was installed smoothly. We truly appreciate your recommendation and will be happy to assist you with any future HVAC needs! Best Regards, Promax Team
Central Air Conditioning Installation or Replacement
pro avatar
Henry N.

Jul 10, 2025

Hired on Thumbtack

I wanted to check all 5 terms to cover Promax services to also include work quality and professionalism. Max was awesome on all levels. He was prompt for the 2 days it took him to complete the installation of 3 smart light switches that required him to rewire all 3 switches. He stayed late to get it done right and even changed out another switch in our garage that did not work after he changed the 3 switches and did not charge us for this. I will certainly use him again. Highly recommend him!

Details: Upgrade wiring, fixture, or equipment • Lights • Switches • 8 - 10 feet (standard ceiling) • House

Promax Service Group's reply
Thank you so much for your kind and thoughtful review Henry! We’re thrilled to hear that you had such a great experience with Max. His professionalism, dedication, and attention to detail truly reflect the values we strive for at Promax. We’re glad he was able to complete the smart switch installation to your satisfaction and go the extra mile in your garage as well. We’ll be sure to pass your praise on to him! Thank you again for your recommendation - we look forward to working with you on future projects! Best Regards, Promax Team
Electrical and Wiring Repair
pro avatar
Abhishek s.

Jun 26, 2025

Hired on Thumbtack

A couple of weeks back my water heater broke. I hired Promax service to replace the heater. The project went smoothly and I am very happy with the end result. From the time when they first came to inspect my old broken heater to the time when I had a new heater running was extremely fast (merely a couple of hours). I would highly recommend Promax service to other users also.

Details: Repair • No hot water • Gas tank • Garage • House

Promax Service Group's reply
Thank you so much for your feedback, Abhishek! We're glad to hear that you were happy with how quickly and smoothly everything went. It was a pleasure helping you get your new water heater up and running, and we truly appreciate the recommendation. If you ever need anything in the future, don’t hesitate to reach out!
Water Heater Repair or Maintenance
pro avatar
Varad J.

Jun 24, 2025

Hired on Thumbtack

Max was extremely helpful in coordinating the possible solutions. He gave us quotes for replacing the system as well as repairing the leakage. We went ahead with repair for cost purposes. Will definitely recommend Max for future HVAC work

Details: Repair • Only warm air is blowing from the vents • Outside • Outside • House

Promax Service Group's reply
Thank you so much for your kind words and for taking the time to share your experience, Varad! We’re glad to hear that Max was able to help you find the best solution and that the repair worked out well for you. Your recommendation means a lot to us, and we truly appreciate your trust in our team. If you ever need any HVAC assistance in the future, please don’t hesitate to reach out - we’re always here to help! Thank you again for choosing us! Best regards, Promax Team
Central Air Conditioning Repair or Maintenance
pro avatar
Maria C.

Jun 22, 2025

Hired on Thumbtack

Max T did a good job to raise my air conditioner to address the sinking issue. He added a layer of concrete as base for the air conditioner pad, and ensured the base was leveled and all exposed components were covered and protected! Thank you, Max!

Details: Outside • Ground floor • Townhouse

Promax Service Group's reply
Thank you so much for your kind words, Maria! We truly appreciate your feedback and trust in our service. Please don’t hesitate to reach out if you need anything in the future. We’re always happy to help!
Central Air Conditioning Repair or Maintenance
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