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About
❌ We do not service window AC and PTAC
✅ Fully insured HVAC contractor serving NYC and surrounding areas.
$2,000,000 General Liability Insurance
Workers’ Compensation Insurance
Commercial Auto Insurance
Umbrella Liability Insurance
Licensed NYC Home Improvement Contractor
License No.: 2134529-DCWP
Universal EPA 608 Certified
NYC Site Safety Card Holder
Specializing in residential and commercial HVAC installation, repair, maintenance, and diagnostics.
We provide:
* Mini-split installation
* Central A/C installation
* Heat pump installation
* HVAC system replacement
* A/C troubleshooting and diagnostics
* Refrigerant leak diagnosis and repair
* HVAC repair and maintenance
We focus on honest service, clear communication, professional workmanship, and fair pricing.
Customer satisfaction is our top priority.
Overview
Current Top Pro
Hired 122 times
Background checked
License verified
2 employees
8 years in business
Business hours
Sun8:00 am - 8:00 pmMon8:00 am - 8:00 pm
Payment methods
This pro accepts payments via Cash, Check, Credit card, PayPal, Square cash app, Venmo, and Zelle.
Top Pro status
Top Pros are among the highest-rated, most popular professionals on Thumbtack.
2025
Services offered
Appliance type
Washer or dryer
Refrigerator
Dishwasher
Oven or stove
Property type
Residential
Commercial
Projects and media
Projects and media
Reviews
Customers rated this pro highly for professionalism, work quality, and punctuality.
Excellent 4.9
72 reviews
5
96%
4
3%
3
0%
2
0%
1
1%
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Robert F.
May 31, 2026
•
Hired on Thumbtack
I would definitely recommend to anyone who is looking to cleaning split units. My unit is leaking oil from pipe, so im definitely calling them back.
Great experience overall. He quickly diagnosed the issue with the boiler pilot and had it fixed in no time. Very knowledgeable, efficient, and professional throughout the process. Would definitely recommend his services.
Details: Boiler • Not enough heat • Basement • Three-story building • House • Owner
YL Smart AIR Inc's reply
Thank you so much
Heating System Repair or Maintenance
Chaim C.
Mar 27, 2026
•
Hired on Thumbtack
I had a sudden boiler failure and had no hot water or heat in my home as a result. Yilong came out to me within 2 hours, spent all the time needed to diagnose the issue and then went and got the very hard to find part for a same day complete repair. I have only positive things to say about this company and highly recommend anyone needing them to use them without hesitation!
Details: Boiler • No heat • Unusual noises from inside • Leaking • Basement • Two-story building • House • Owner
YL Smart AIR Inc's reply
Thank you for choosing us. Glad your boiler is working again. If you need anything in the future, feel free to contact us anytime.
Heating System Repair or Maintenance
Sheila F.
Jun 30, 2026
•
Hired on Thumbtack
Yilong was excellent. He responded right away to my request for service, came out the very next day, serviced my HVAC unit and was very thorough in examining the entire operation. I appreciated his honesty and the quality of his work. Amazing value. I will continue to use him going forward.
Central Air Conditioning Repair or Maintenance
Andrew H.
Apr 15, 2026
•
Hired on Thumbtack
Yilong is very knowledgeable and knew exactly what the problem was when I explained the issue, in half an hour he was finished will be calling him back if I have any more problems, excellent professionalism and work quality
Details: Repair • Unit won't turn on or off • The power is on, but the fan won't run • Routine maintenance • Basement • Outside • House • Owner
