Serving Nassau, Suffolk, and

the 5 Boroughs of New York

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Commercial Repair for Energy Efficient Systems

Your heating, ventilation and cooling accounts for about 50% of the energy costs in your business. L & J Heating & AC can help you reduce energy costs and consumption by repairing or replacing your old system with our high standard heating and air conditioning services.

L & J Heating & AC provides complete commercial heating and cooling system service and solutions. We have been providing schools in Long Island and the NYC Board of Education with service and installations of roof top package units along with split central A/C and heat pump units with experienced roofers, electricians, plumbers and steel fabrication contractors that work with us.

Trusted in Commercial HVAC Service

If you are looking to implement full-scale HVAC services for your business, Get in touch with L & J Heating & AC today for a no cost, no obligation consultation.


We proudly install Carrier, Luxaire, Tempstar, Sanyo, Mitsubishi,  and other systems with a 1-year labor warranty and manufacturer's warranty.

Need a New HVAC System installed?

For sales, services, and installations, call today:


• Family-owned and operated

• Ask about our FREE estimates

• Senior and military discounts

• Money-saving attic fans

• References available