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Quality HVAC Installation & Service

Residential & Commercial Air-Condition Service in Queens, N.Y.
Opening at 8:00 AM
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3 months ago
We contracted Freddie and 4 Sons to install Tosot Split AC Units and Condensers in our Multi-Family Home in Astoria. They did a fantastic job. They were quick, on time, and very communicative. They have also been very responsive to any questions we have had since the install. Highly Recommend!!!!
- Kevin M
10 months ago
Freddy came to solve our problems with our Nest thermostat and boiler. We’re so grateful to have found such a professional and knowledgeable person. Although our heating system needs an upgrade and the thermostat needs to be replaced, he was able to correct some of the wiring issues and didn’t give up on trying to find a solution. We highly recommend Freddy.
- Silvia T
a year ago
We are really grateful to 4 Sons. Our AC system stopped working right before a heat wave (system was installed by another company). Initially they told us they wouldn’t be able to come for a few days due to a fully booked schedule, however when we mentioned we had a 4 month old baby, they made time the same day to come at the end of the day. They were able to diagnose the problem, patch the leak and get the system running perfectly. A big thanks to Freddy and his sons.
- Gabriel F

Quality and Honesty

At 4 Sons Mechanical Inc. we are your premiere source for Residential and Commercial hvac sales, hvac maintenance, mini-split installations (ductless ac units), and hvac repair service. I started 4 Sons Mechanical Inc. with one simple idea: I don't need to be the biggest hvac company in New York. We strive every day to respect every customers time and budget and provide honest recommendations.

I tell customers all the time, "the most important thing about buying a new hvac system is finding a company that will properly install it, brand doesn't matter if it's a poor installation''. 4 Sons Mechanical Inc. provides HVAC maintenance, service repair & installations. A family owned local h.v.a.c. company based in Astoria that works with your budget and needs. With a maintenance agreement and the right HVAC company your a.c. will run more efficient and live longer. 

4 Sons Mechanical Inc. is a TOSOT preferred installer

Mitsubishi certified, Daikin certified, AAON certified, EPA certified. 4 Sons Mechanical Inc. works on a variety of name brands including Fujitsu, United Coolair, Skymark, Trane, Carrier, Rheem, Liebert, Climate Master, etc. 


  • Did you know, according to the CDC, air-conditioning is the number one protective factor against heat-related illnesses and death.
  • Setting a thermostat below 68 degrees can cause potential freezing on the evaporator coil.
  • In order  for your HVAC system to operate at its best, filters should be changed or cleaned once they start to look discolored.

4 Sons Mechanical Inc. 
Residential & Commercial HVAC Installation, Mini ductless split installation, ac repairs, hvac maintenance agreements, hvac service repairs, compressor replacement, parts, etc.

4 Sons Mechanical Inc. provides 24/7 emergency response.

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                                    Email or Call (646) 854-SONS now for your free estimate!   

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  • (646) 854-7667


Get directions
2410 29th Street Suite#1
Astoria, NY 11102

Business Hours

Mon:8:00 AM – 4:30 PM
Tue:8:00 AM – 4:30 PM
Wed:8:00 AM – 4:30 PM
Thu:8:00 AM – 4:30 PM
Fri:8:00 AM – 4:30 PM
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