Whether you are in need of a heating and air conditioning system, repair services or preventative maintenance, our skilled technicians can handle the job.
Have one of our professionals come out for a diagnostic assessment for the small fee of $69.

New Installation

Your home comfort system is most likely the single biggest use of energy in your home. In fact, over a third of the energy used in the United States is used to heat and cool buildings.

Upgrade or Replacement

Your home comfort system is most likely the single biggest use of energy in your home. In fact, over a third of the energy used in the United States is used to heat and cool buildings. Having a properly designed and installed heating and air conditioning system will have the biggest impact on your energy costs.

Repair Service

As licensed contractors and specialists in the field of heating and air-conditioning, we have the tools, the equipment, and the experience to keep your equipment running smoothly all year long. If it is repair service that you need, we are here to assist you, just give us a call.

Membership Plans

Experience the valuable benefits of becoming a A Plus HVAC member.

Indoor Air Quality Specialists

Indoor Air Quality Specialists

While we are often warned about the air quality outside and its health impacts, we need to be more diligent about the air quality inside the home. Our Indoor Air Quality Specialists can measure, monitor, and rectify any of your air quality issues.

Sheet Metal Fabrication

Sheet Metal Fabrication

Customization starts in our own shop where Master Craftsmen are charged with the design and fabrication of HVAC applications. In-house manufacturing guarantees a high level of quality and a streamlined install process.

Manual J Load Calculation

Manual J, a protocol developed by the Air Conditioning Contractors of America (ACCA). Manual J HVAC load calculations determine how much heating and cooling a house actually needs. Oversized systems cost more in the present and could prove even more costly in the long run.

Duct Design, Manual D

Duct Design, Manual D

Matching the duct size with the blower is both an art and science. Let the experts at APlus design the right ducts for your specific needs. A properly designed duct system maintains uniform temperatures throughout the house, running both quietly and efficiently.

Duct Sealing

Optimizing efficiency is essential and part of that process includes professionally-installed duct work that doesn’t have leaks, holes, or compromised connections.

Duct Design, Manual D

Commercial Services

From light commercial to industrial HVAC applications and commercial refrigeration, our APlus experts can service all of your heating and cooling needs.

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A Plus HVAC Inc 26 Airport Drive Westfield, MA 01085
Phone: 413-362-0054


by John and Randi B on A Plus HVAC
Full Furnace and A/C Replacement

Great experience with A Plus HVAC! We got 5 quotes for a complete gas furnace and central a/c replacement. We ended up choosing A Plus - and we're happy we did. From the owners on through the tech/install crew, everyone was professional and friendly. They did a great job - including a special request for a framed platform for the a/c. It came out great. Also, everything was cleaned up at the end. They explained everything, patiently answered all our questions and helped us every step of the way: including the MassSave HEAT program and even processing our MassSave rebates.

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Disclaimer: Free estimates for Design Consultations only.