The HVAC system in your home or office should operate behind the scenes, keeping temperatures and humidity circulating seamlessly. Ideally, you should not even feel climate changes. When you do, it’s typically because there’s a problem. That’s when it’s time to take advantage of D&T Mechanical Services.

When you choose to work with us, you’re getting more than just regular HVAC; you’re entrusting your home or office to a top-flight New York City specialist who’s seen just about every issue the city’s buildings can muster. We take our responsibility as your trusted New York City HVAC specialist very seriously, and thus strive to not only offer fabulous work but exceptional customer service as well.


OUr services INclude

  • HVAC System Services
  • Commercial Heating Services
  • Commercial Air Conditioning Services
  • Ventilation Services
  • 24/7 Emergency Service
  • 100% Guaranteed Work
  • Apartment Owners Welcome
  • Licensed
  • Insured
  • Most Factory Parts on Our Trucks
  • Factory Trained and Authorized
  • Professional Technicians
  • Radio-Dispatched Trucks
  • Same-Day Service
  • Up-Front Pricing
  • Written Estimates
  • Environmentally Conscious
  • We Recycle Ozone-Depleting Refrigerants


Performance Air Conditioning Service Agreement

The Peak Performance Service Agreement is different. While keeping breakdowns and repairs at a minimum, it also focuses on reducing utility cost. The number one complaint is lack of comfort. When people are uncomfortable, their productivity can be decreased by up to 25%. We will find and eliminate small problems before they grow large and expensive. We also include an 18 point “Peak Performance Maintenance Schedule”, to keep your air conditioning working to its maximum efficiency, and 24-Hour Emergency Service.

The Facts:

  • 100th of an inch of dirt on an evaporator coil can increase operating costs.
  • Dirty blower wheels can reduce airflow over 30%.
  • 23% refrigerant undercharge can cause 52% efficiency loss.
  • Depending on the severity, a savings of more than $100 per rated ton each season could be possible where maintenance has been poor or nonexistent.


From window units to commercial condensers, we can install the right system for your property.  Are you in the market for a commercial or residential HVAC units? If so, D&T Mechanical is proud to offer HVAC installation services that are competitively-priced so you can enjoy high-quality New York City heating and cooling without experiencing sticker shock. 


Service Capability

While certain companies specialize in servicing one type of air conditioner, at D&T, we don’t think that’s enough. We pride ourselves on being able to provide expert quality HVAC service for all makes and models of HVAC systems, including but not limited to:

Aaon, Air Temp, American Standard, Bryant, Carrier, ClimateMaster, Comfort-Aire, Cool Air, Daikin, Fedders, Florida Heat Pump, Fujitsu, Friedrich, Goodman, Ice Air, Icecap, Islandaire, LG, Lennox, Luxaire, McQuay, Mitsubishi, Rheem, RUUD, Skil aire, Skymark, Totaline, Trane, Unitary, United Cool Air, York


Why Choose US

For over 30 years, the pros at D&T Mechanical has been dedicated to providing honest, top-quality HVAC service throughout New York City.

1. Our employees are experts in heating and cooling.

Each one of our technicians have years of experience in all aspects of heating, ventilation, and air conditioning. It is mandatory for each technician to complete a full in-house training calendar to ensure that they are up-to-date on the latest HVAC equipment. All of our service and project managers, as well as our customer service representatives and dispatchers are experts in HVAC service and are able to help you throughout the entire process.

2. We pride ourselves in the quality of our work.

From the way we insulate our ductwork to the running of the copper refrigeration pipe, our quality is like no other. We spend as much time as we need to insure that our jobs are done perfect. We are not interested in going back or cutting corners; when choosing Interstate you know the job will be done right. Please feel free to check out our portfolio of installation jobs to see for yourself.

3. Dedicated to Honesty and Transparent Communication.

Unlike other commercial HVAC companies in NYC – our goal is to keep you a customer for life. We are 100% honest, and do not take advantage if problems are to arise. Please look at our long list of happy customers to get an idea of what we are all about.