HVAC PRO

Top Pro

$75-$150

Select a service

Zip code

Property type

Project type

Thermostat control type

Responds in about 3 hours

Introduction

I have been doing HVAC servicing for 21 years and it has become a passion for me. I know all the processes from the inside, my goal is to understand the cause of the breakdown and eliminate it using the most modern and safest methods for health. I won’t just fix a temporary breakdown, I will fix your equipment for many years of service. I have all the necessary tools, supplies expense, modern measuring equipment, my knowledge and experience. And I use all this for my happy clients. My highlight is that I love my job and do it conscientiously and efficiently.

Overview

Current Top Pro

Hired 181 times

Serves Beverly Hills, CA

Background checked

3 employees

20 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

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

Top Pro status

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

2024

Featured Projects

6 photos

Before I had old analog thermostat and now digital
I highly recommend Denis for anyone in need of HVA
Installed Nest in 30 mins at great price $105 tota

Reviews

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

Great 4.7

96 reviews

5

92%

4

1%

3

0%

2

2%

1

5%

Read reviews that mention:

Ben M.

Jan 15, 2025

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Hired on Thumbtack

I recently had an issue with my mini-split AC/heater, which was installed six months ago by another company. The heat had stopped working, so I contacted Denis for help. He responded quickly and came by the very next day. Denis identified the problem immediately—a leak caused by a faulty installation. On top of that, he found a couple of other issues from the original install. Despite these challenges, Denis was able to fix everything within an hour, saving me a lot of money and hassle. His professionalism, efficiency, and expertise were truly impressive. Denis was thorough in explaining the issues and solutions, and his work was top-notch. I’m so relieved to have my system working perfectly again! If you’re looking for a reliable and skilled technician, I highly recommend Denis. He went above and beyond, and I’m grateful for his excellent service.

Details: Repair • The power is on, but the fan won't run • Garage • Ground floor • House

Central Air Conditioning Repair or Maintenance

De T.

Jan 1, 2025

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Hired on Thumbtack

Denis was very responsive and professional. He repaired our old wall heater and came back the next day to ensure his work was complete and that we were satisfied. I would definitely hire him again!

Details: Furnace • Routine maintenance • No heat • Single-level building • House

Heating System Repair or Maintenance

Justin M.

Dec 23, 2024

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Hired on Thumbtack

Denis was very helpful in getting my new thermostat installed and fixing some work that the HVAC installer had done incorrectly.

Details: Replacement • Central heating or cooling • House

Thermostat Installation or Repair

Teki C.

Dec 8, 2024

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Hired on Thumbtack

DZO HVAC GROUP was quick to respond when our heater quit on a winter day. The price was fair and the furnace was repaired quickly.

Details: Furnace • Not enough heat • Basement • Two-story building • House

Heating System Repair or Maintenance

Sonia y.

Dec 6, 2024

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Hired on Thumbtack

Fantastic service! The technician quickly diagnosed and fixed the heating Thermostat issue. He was very professional and efficient. The house is warm again! Couldn't be happier. Highly recommend for reliable and speedy service with a very reasonable price.

Details: Repair • Townhouse

Thermostat Installation or Repair

Credentials

Background Check

Denis Zemliakov