Welcome to A1 Heating & Air Conditioning, locally owned HVAC Contractors on Long Island specializing in heating repair and air conditioning repair. Our cost-effective services and agreement plans for Air Conditioning units, furnace repair, boiler replacements, and Plumbing repair ensures our customers remain loyal to the A1 Heating & Air Conditioning team year after year.

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HVAC Services Long Island We offer

Heating Repair Long Island

Air conditioning repair

Furnace Repair

Central Air Conditioning repair

We are one of the best HVAC companies on Long Island

Call us now for fast affordable HVAC repair on Long Island in the surrounding suburbs 631-331-2102.

From concept to completion of any air conditioning project, A1 Heating & Air Conditioning’s goal is to help customers install or replace their HVAC systems as innovatively as possible while staying within budget.

We believe that any heating or air conditioning equipment installation should be a ‘win-win’ situation with our customers receiving high-quality products and unsurpassed service. As a professional HVAC contractor, we are benefiting the most from a loyal customer.

A1 Heating & Air Conditioning offers a prompt response and repair of all systems with “not cooling” or “not heating” failure. Regardless if you have a heat pump, or A/C system, a natural gas, oil, or propane furnace or boiler, our team of highly trained technicians is here to ensure that your equipment is always serviced by a knowledgeable professional.

Emergency service, maintenance, inspections and replacement for all existing manufacturers and models. Heat pumps, straight A/C systems. Complete HVAC sizing and design for new construction warrantied for up to 10 years with timely preventive maintenance.

  • Certified expert in installation of top quality Heating and Air Conditioning repair and replacement on Long Island
  • Energy Star qualified HVAC systems that may help save up to 20% on your annual energy costs.
  • A full line of Lennox cooling and heating systems.
  • Water Heater Installation And Repair on Long Island
  • Indoor Air Quality Assessments

Preventive maintenance service contracts for newly installed air conditioners and heaters as well as older systems inspected and approved by an A1 Heating & Air Conditioning technician.

Your air conditioning system is important in keeping your home comfortable all year round. That’s why, when things get bad with your AC, you want to know that you can get it fixed quickly and efficiently. A1 Heating & Air Conditioning understands how important, that air conditioning systems repair and replacement are functioning properly during summer time.


At A1 we offer a variety of repair & installation services on:

  • Heating systems
  • Air conditioning systems
  • Generators
  • Water heaters

Service Program

Our Service Agreement Program is offered to newer equipment (10 years or less). Service Agreements include proper cleaning and maintenance (spring and fall) and all necessary service calls throughout the year, plus all parts* and repair labor. (*excludes compressors)

Both our Preventive Maintenance Programs and Service Agreements help reduce the price of repairs and ensure preferred service response time (over noncontract customers) all year long, especially during our busy seasons. Preventive Maintenance Programs and Service Agreements can be customized to fit your needs.

Speedy Availability

Our technicians are available for same day service to service all of your HVAC needs. Call us today at 631-331-2102 to schedule a consultation or a service call. There is no job to big or to small that we cannot handle. We look forward to hearing from you today to start to build a lasting relationship.