Quality HVAC Installation & Service

Residential & Commercial Air-Condition Service in Queens, N.Y.
Open 24 hours
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@dreamnyc enjoy the summer in your office with cool temperatures. @fahrenheitsupply #4sonsmechanical #hvacmaintenancenewyork #hvacservicenewyork #tosotminisplitac

I tell customers all the time, the most important thing about buying a new system is finding a company that will properly install it, brand doesn't matter if it's a poor installation. #4sonsmechanical #4sonsmechanicalinc #hvacmaintenance #hvacastoria #hvacnewyork #hvacservice #hvacrepairs #minisp...

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#4sonsmechanical #4sonsmechanicalinc #hvacmaintenance #hvacastoria #hvacnewyork #hvacservice #hvacrepairs #minisplitac #ductlessinstallation #aircondition #heating #service #hvacmaintenancecontract #hvacpreventivemaintenance

Preventive HVAC maintenance helps prevent nuisance breakdowns. Call now for your free estimate. #4sonsmechanicalinc #hvacmaintenance #hvacastoria #hvacnewyork #hvacservice #hvacrepairs #minisplitac #ductlessinstallation #aircondition #heating #service


Sep 8, 2018 – Sep 7, 2019

Sign up for a 1 year maintenance agreement and receive 1 free condenser coil cleaning on all your air-cooled condensers.

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Air Conditioning Services

  • Emergency Service Repairs

    If your A.C. breaks down in the middle of summer, you can look forward to hot, sticky, humid conditions until it’s been repaired. Extreme temperatures can even be dangerous, especially to the elderly.It's important to have an experienced and trustworthy technician examine your system. Improper care like adding the wrong refrigerant, failing to fix a leak or making other errors can create even more problems. No matter what your AC needs are, we've got you covered. We provide everything from seasonal AC tune-ups to emergency air conditioning repairs for complete, state-of-the-art, energy efficient HVAC systems. We even provide low-cost monthly protection plans for your home or business systems to help safeguard your family, employees, and budget from unexpected emergency repairs or unplanned installations and replacements.Turn to the professionalism and technical expertise of 4 Sons Mechanical, Inc. technicians to make sure the job is done right.
  • Thermostat Replacement

    4 Sons Mechanical can replace your old thermostat with one of the best smart thermostats available, one that is on the cutting edge of technology with advanced user-friendly programmable options.Programmable thermostats are a low voltage wiring installation and involve anywhere from 2-10 wires, depending on your type of heating and cooling system. If your job requires a replacement or new installation, call your 4 Sons Mechanical professional to ensure the proper equipment and installation, as well as operation with your heating and cooling system. Smart thermostats require professional installation to maximize their performance depending on your vintage and type of heating and cooling system.Your technician will ensure proper installation and instruction for your new thermostat.
  • Heat Pump Repairs & Replacements

    An air-source heat pump can provide efficient heating and cooling for your home, especially if you live in a warm climate. When properly installed, an air-source heat pump can deliver one-and-a-half to three times more heat energy to a home compared to the electrical energy it consumes. This is possible because a heat pump moves heat rather than converting it from a fuel, by exploiting the physical properties of the refrigerant.Contact 4 Sons Mechanical for your Air-Source Heat Pump repair and replacement needs.
  • Planned Preventive Maintenance Agreements

    Routine maintenance inspections will ensure your air conditioner is working at top efficiency, extending its lifespan. Set up your planned preventive maintenance agreement with 4 Sons Mechanical, Inc. to clean the unit, check on the refrigerant, check electrical connections, change filters and belts, and make sure the system is in safe working order.


4 months ago
Fred, and his crew where amazing. The installation was done perfectly and all units work perfect. I would highly recommend for your air conditioning needs.
- Wanda R
2 months ago
Great service and clear communication on what was wrong with my home central AC unit. Freddy answered all my questions no matter how big or small.
- Sandro P
a year ago
They are the best
- Max L

Quality and Honesty

At 4 Sons Mechanical Inc. we are your premiere source for Residential and Commercial h.v.a.c. sales, maintenance, installations, and service. I started 4 Sons Mechanical Inc. with one simple idea: I don't need to be the biggest 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 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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Contact Us


Call now
  • (646) 854-7667


Get directions
2410 29th Street, Suite#1
4 Sons Mechanical Inc.
Astoria, NY 11102
United States

Business Hours

Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours
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