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HVAC PRO

Top Pro

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A/C unit size
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About
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 414 times

Background checked

3 employees

21 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

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

Top Pro status

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

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2025

Top Pro Icon

2024

Services offered
Property type

Home

Multi-unit building

Office / business

Other

Projects and media
Projects and media
Reviews

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

Great 4.8

248 reviews

5

94%

4

1%

3

0%

2

1%

1

4%

Read reviews that mention:

pro avatar
Mona s.

3 weeks ago

•

Hired on Thumbtack

Very happy with Denis, he diagnosed and fixed the problem quickly and for reasonable price. Would use him again for any future issue with my AC or heating .

Details: 1 unit • Need professional to recommend size • Home

Window, Wall, or Portable AC Repair or Maintenance
pro avatar
Mario M.

Jan 14, 2026

•

Hired on Thumbtack

Denis was amazing! He came to my dental office on very short notice and handled our AC issues quickly and professionally. He diagnosed the problem right away, fixed everything the same day, and his pricing was more than fair. Super reliable, great communication, and excellent service overall. I highly recommend Denis and HVAC Pro — definitely my go-to from now on!

Details: Repair • Central heating or cooling • Commercial • Property manager

Thermostat Installation or Repair
pro avatar
Shawn H.

Jan 11, 2026

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Hired on Thumbtack

Our central HVAC system died last night (1/10/26), in the middle of winter. I phoned Denis and received a response within 15 minutes. Once here, he quickly and efficiently diagnosed the problem. Denis immediately began working to repair our unit. Additionally, the cost for services was reasonable. I am very impressed with his knowledge base and skills. He also gave great recommendations for unit upkeep. Highly recommend.

Details: No heat • Single-level building • House

Heating System Repair or Maintenance
pro avatar
Danny R.

Dec 23, 2025

•

Hired on Thumbtack

Denis was excellent to work with from start to finish. He responded quickly to our request and was able to schedule a same-day visit, which was a huge help. Once on site, he quickly assessed the issue and repaired the leak efficiently and professionally. What we appreciated most was how mindful he was of our business—he completed the work without disrupting our retail store during a busy holiday shopping period. After everything was finished, Denis followed up with a call to walk me through what was done and answer any questions. Clear communication, fast service, and great professionalism. Highly recommend.

Details: Repair • Ground floor • Commercial

Central Air Conditioning Repair or Maintenance
pro avatar
Oleh C.

Dec 7, 2025

•

Hired on Thumbtack

I requested this pro for a thermostat repair, quoted at $75. When he arrived, there was a miscommunication and he ended up installing the thermostat, even though I only needed the power issue fixed. Installation was priced much higher ($150), but we settled at $100. He installed the thermostat, fixed the power problem, and everything works perfectly now. Denis also helped remove the old furnace filter, which I really appreciated. The work was good and the issue was resolved, so I’m giving 5 stars. My only feedback is that pricing should be crystal clear before starting the job, since that part is important to me.

Details: Repair • Central heating or cooling • House • Homeowner

Thermostat Installation or Repair
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Denis Zemliakov

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