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About
✅ Service Call: $85
Includes full diagnostic — the fee is waived if you hire us for the repair.
✅ Licensed • Insured • Local Family Business • Trusted Across OC
✅ Discounts Available.
✅ Offering Financing.
At GoTech Air Conditioning & Heating, we offer excellent HVAC services. We serve both homes and businesses in Orange County. We take care of every job, from new system installations to repairs and seasonal maintenance. We do it all with precision.
Why homeowners choose GoTech:
– Honest diagnostics
– Clear, upfront pricing before any work begins
– Reliable technicians who value your time and property
After years of helping our local community, our goal is still the same. We want to provide reliable HVAC service you can trust. If you need quick AC repair, a new installation, or expert maintenance, GoTech is here to keep you comfortable.
Overview
Hired 5 times
Background checked
License verified
2 employees
4 years in business
Business hours
Sun9:00 am - 5:00 pmMon7:00 am - 7:00 pm
Payment methods
This pro accepts payments via Apple Pay, Cash, Check, Credit card, Google Pay, PayPal, and Zelle.
C20 – Warm-Air Heating, Ventilating And Air-Conditioning Contractor
License state: CA
Background checked
Passed by Oleg Guliaigrodskyi on Jun 14, 2025.
Services offered
Duct and vent type
Heating
Building height
Single-level
Two-story
Three-story
High-rise
Property type
House
Condo/Apartment
Townhouse
Business
Projects and media
Projects and media
Reviews
Customers rated this pro highly for professionalism, responsiveness, and work quality.
Exceptional 5.0
57 reviews
5
100%
4
0%
3
0%
2
0%
1
0%
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Dwight H.
Dec 4, 2025
•
Hired on Thumbtack
Seeing that GoTech Air had such positive reviews, called them for my wife’s employers home. Troubleshot system and corrected problem. Thank you.
Details: Repair • Central heating or cooling • Townhouse • Homeowner
Thermostat Installation or Repair
Melody K.
Dec 30, 2025
•
Hired on Thumbtack
Oleg helped me install a Google Nest thermostat. I didn't have to wait long for an appointment, and when he realized I needed a wall plate, he went to the store to find one. He made sure the installation looked good and worked right. I would definitely use his services again.
Details: New installation • Central heating or cooling • Condo/Apartment • Homeowner
Thermostat Installation or Repair
Edward S.
Aug 22, 2025
•
From Google
Oleg came today, in spite of a full schedule, hot weather, and major demands for his seevices.. Figured out the problem in 10 minutes, fixed in another 10, checked the system to confirm coolant levels were correct and no leaks. Left after 35 minutes. I was very impressed with his knowledge and experience, he's my new HVAC tech henceforth, I recommend him highly.Ed
GoTech Air Conditioning & Heating's reply
Thank you, Ed! We’re glad we could take care of the issue quickly — your trust means a lot.
Evan K.
Sep 6, 2025
•
From Google
Oleg did great work. First, he did a diagnostic at no charge. He then followed up with a few different options for a replacement air-conditioning unit. His estimates were much less expensive than those I received from other vendors. He was back within two days to install the new system. Very friendly and knowledgeable. I highly recommend. 5 stars.
GoTech Air Conditioning & Heating's reply
Thank you for the 5-star review! I’m glad you’re happy with the new system and the service provided.
Nur A.
Aug 12, 2025
•
From Google
Oleg did a good job. He solve my HAVC problem. Would give him mark 10 out of 10.If anyone have air conditioner problems I strongly recommend Oleg.
GoTech Air Conditioning & Heating's reply
Thank you so much for the 10/10 rating! We’re happy Oleg was able to solve your HVAC problem. Your recommendation means a lot and we’re always here if you need us again.
