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Promax Service Group

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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 174 times

Serves Santa Clara, CA

Background checked

License verified

5 employees

1 year 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

Services offered
Type of water heater

Gas tank

Electric tank

Property type

House

Townhouse

Projects and media

164 photos

Projects and media

164 photos

Reviews

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

Excellent 4.9

72 reviews

5

97%

4

2%

3

0%

2

1%

1

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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
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
Samantha G.

Feb 22, 2025

Hired on Thumbtack

I submitted a request yesterday evening just before 7 pm about a few light switches I’d tried to replace before discovering a nasty mess of wiring I couldn’t fix or put back as it was (first two photos). Promax reached out before I’d received the confirmation email from Thumbtack about my request and was able to be out the following morning (this morning) from 9-11 am. Max T. was right on time, very pleasant and professional, and sorted that monstrosity of wires out by 10 am (last two photos; ignore any dirt on the old covers). Everything’s working perfectly, and no more buzzy lightbulbs (the reason I pulled the dimmer switches in the first place)! I highly recommend and would absolutely book again. Thank you, Max!

Details: Fixture or outlet not working • Switches • Under 8 feet (low ceiling) • Condo or apartment

Promax Service Group's reply
Thank you so much for your kind review Samantha! Your positive feedback truly motivates us to continue providing excellent service. We’re thrilled to hear that you had a great experience and appreciate your support. We look forward to welcoming you back again soon. Have a great day! The Promax Team
Electrical and Wiring Repair
pro avatar
Siddharth U.

Feb 15, 2025

Hired on Thumbtack

Got a mobile charger point installed for my electric car. Clear explanation of charges and difference between methods. Gave choice to me.

Details: No, there is no existing wiring • Install EV charger • 1 switch or outlet • Outdoors • Garage • Drywall • House

Promax Service Group's reply
Hi Siddharth, Thank you for your feedback! We’re so glad we could help with the installation for your electric car charger. It’s always our goal to make things clear and give you choices that work best for you. Let us know if you need anything else—we’re here to help! Take care, The Promax Team
Switch and Outlet Installation
Credentials
License

License type: C20 – Warm-Air Heating, Ventilating And Air-Conditioning Contractor

License state: CA

License verified on 3/6/2025

Background Check

Ganna Tkachova

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