Air Conditioning

Air conditioning service.

Chaves Heating & Air Conditioning, Inc. is your leading HVAC contractor in Hudson, MA, and the surrounding communities for all of your cooling needs. If you require repairs, maintenance, or a brand new system, the technicians and consultants at Chaves are the qualified professionals for the job. Call us at 877-7-CHAVES or 978-562-5309 or request service online now.

In addition to providing the highest quality of service, we aim to educate our customers – informed decisions are good decisions. It is important that you have confidence in our ability to perform the task for which you are hiring us.

How Much Money Can a New Air Conditioner Save You?

Our SEER2 (Seasonal Energy Efficiency Ratio 2) energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit’s SEER value and compare it to a newer, more efficient SEER2 unit. You can even customize it to better match your home’s system for a more accurate calculation.

SEER2 Energy Savings Calculator

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This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.

Customize to Your Home

Adjust these settings for a more accurate calculation:




Rate (¢/kWH)


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Historical Comparison

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** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study

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Air Conditioning Basics

The four main components to your air conditioner are:

Condenser: This is the outdoor unit where the refrigerant from the compressor is condensed into liquid. When the gas enters the compressor it is extremely hot but then lowers in temperature and converts back to a liquid form.

Compressor: This is located inside of the condenser and circulates the pressurized refrigerant, concentrating the heat and converting the gas from low to high pressure.

Evaporator: The indoor part of the system that absorbs the heat from your home.

Expansion Valve: The expansion valve controls the amount of refrigerant in your system.

These components are connected by a copper tube that handles the refrigerant and creates a closed loop. Heat is collected in the evaporator then sent to the condenser where heat is removed and circulated back into your home in the form of cool air.

AC Facts

An Air Conditioner Does Not Create Cool Air.
What happens in the process is the removal of heat from the air. The warm air goes over the coils in your unit, converting from liquid to gas and back again. In the process, the refrigerant removes the heat and transfers it outside so the air produced in your home is cool.

Your AC Will Remove Humidity.
Lower humidity improves the overall level of comfort by making you feel cooler even if the temperature remains the same.

Your Air Filter Needs to be Checked and Replaced Every 2-6 Months (depending on manufacturer's recommendations).
A dirty filter restricts air flow, thus reducing efficiency and creating the potential for a costly repair due to stress placed on the unit.

Maintenance, Maintenance, Maintenance.
Your HVAC system requires an annual check-up to ensure it continues performing at max capacity and peak efficiency. Regular preventative maintenance will bring your system a longer life and fewer breakdowns.

The Seasonal Energy Efficiency Ratio (SEER) measures air conditioning and heat pump cooling efficiency, which is calculated by the cooling output for a typical cooling season divided by the total electric energy input during the same time frame. A higher SEER rating means greater energy efficiency.

At Chaves HVAC, we provide all the services you need to keep your AC running in top-notch shape. Call us at 978-562-5309 for repairs, maintenance, or new-system installation.

Air Conditioner Maintenance in Clinton, MA 01510

“Matt is always very polite and knowledgeable”
- Rich M.

Air Conditioner Maintenance in Hudson, MA, 01749

“Matt Coyle was on top of his game.
I had a visit by him in the past.
Was glad to see he was assigned to my need again.
Personable & knowledgeable.
Keep up the good work!”

- Michael G.

Air Conditioner Repair in Marlborough, MA, 01752

“Very prompt and professional.. Better than others I used in the past.”

- Ken A.

Air Conditioner Maintenance in Holliston, MA 01746

“Annual early season checkup and maintenance performed today. The technician, Matt, was by far one of the most thorough and best I’ve experienced. I could not be more pleased!”

- Len Z.

Air Conditioner Maintenance in Hudson, MA, 01749

“On time and very professional.”

- George C.

Air Conditioner Maintenance in Clinton, MA 01510

“Dwayne called ahead and was prompt. Was very thorough in the maintenance process and answered questions I had regarding replacing my current AC system, though running good, is about 15 years old.
He processed my Maintenance Membership Program renewal before he left.
Very professional.”

- Paul S.

Air Conditioner Maintenance in Wayland, MA 01778

“Matt took the time to carefully examine and clean the units finding one small issue he fixed and even changed a filter for me. He was pleasant, wore covers over his shoes, and made sure to show me how to clean the filters in the mini splits before he left. Very nice.”

- Mary T.

Air Conditioner Maintenance in Hudson, MA, 01749

“Eric was here today performing the annual check of the AC system. He arrived ahead of schedule (yeah), was super courteous, professional and clean. The entire visit lasted 45 minutes; the system is now all ready for the hot summer months.”

- Martha P.

Air Conditioner Maintenance in Clinton, MA 01510

“I got a text and Kevin called to say he was on his way and expected time of arrival. Kevin was very professional and cordial. He explained his findings and said the system is in good shape .”

- Rich M.

Air Conditioner Maintenance in Marlborough, MA, 01752

“Today we had our annual air conditioner service completed. The Chaves technician Matt was very thorough in the service maintenance and gave a detail report. Matt manners are very professional. We have used Chaves for 13 years now. We have peace of mind knowing that we have a service company to meet all our needs. Thank you.”

- Andrew T.

Need Air Conditioner Service?

Contact the experts at Chaves HVAC.

Call us at 978-562-5309!