Get $100.00 off your purchase of a Lennox PureAir Purification system & installation.

Our services

JJT Mechanical is your #1 source for HVAC installation

We install both residential and commercial HVAC units like Lenox, Rheem, Bryan and Trane products. From 1.5 tons to 25 tons, no job is too big or small. We offer may efficient and  affordable  central air and heating systems. Our  products  include Dakin and Mitsubishi ductless units that are great for small spaces that cannot accommodate ductwork. We install Aprilaire dehumidifiers and humidifiers, Honeywell and Nest thermostats. 


Our specialized HVAC services include change outs,

 rooftop units,  spiral ductwork and more. 

We have over 30 years experience. 


Our highly skilled team of technicians will install:


Central air systems

Forced air systems

Ductless units

Air Handlers

Air exchangers

Air filtration units

A/C evaporators

Mini split systems

Split systems

Condensers

Compressors

Furnaces


Our  products include  a  full  warranty.  


We work closely  with many  large  residential  and commercial  builders,  architects  and engineers.


We  are  fully  licensed and  insured  in both  Nassau  and Suffolk County, NY.  We are Government  EPA  Certified and  LIPA  cool homes  certified  contractor.  

HVAC condenser upgrade and replacement in Suffolk County New York

HVAC condenser upgrade and replacement in Suffolk County New York

About Us