Thinking of a new heating or cooling system on the North Shore?

Your family’s comfort:
you want it; we deliver it.

No matter the season, be sure your family truly enjoys your home year-round by turning to the experts at Preferred Air to install, maintain and supply efficient heating and air conditioning systems. Our technicians work with almost all types of HVAC systems including forced hot air, forced hot water,  steam heating, air conditioning, air handling, air cleaning and humidity control—all with the quality and affordability you should expect from any contractor.

Forced Warm Air Heating Systems & Service


Once upon a time, most furnaces were similar. No more. Your choice of a furnace could be the difference in hundreds of dollars per year in savings off your monthly energy bills. Plus, many high-efficiency furnaces are eligible for rebates from manufacturers, utilities and your fuel provider.

Advances in home heating technology means that a new furnace can be up to 40% more efficient than your current one— even one as little as 15 years old. With current fuel prices, the difference to your checkbook can add up to hundreds of dollars per year — in some homes, over $1000 per year. Plus, today’s systems are quieter and more dependable.

At Preferred Air, we offer high-efficiency furnaces suited for every size house and every size budget. These furnaces feature the highest AFUE ratings (like a gas mileage rating on cars), the lowest decibel sound levels, and the ability to “predict” the need for heat in your home— cutting temperature swings in half. Many models allow you to control temperature, humidity, air quality, fan speed, ventilation…and even detect when the air filter needs replacing.


If your furnace is just fine, allow Preferred Air to keep it in tip-top shape. We repair and maintain all make and models of heating systems, and our technicians are carefully selected for their breadth of skills and experience. We’re proud of them; we believe no other North Shore contractor has a team with the same level of professionalism and integrity. Emergency service is available 24 hours a day — especially in no-heat situations.

Central Air Conditioning Systems & Service

(For ductless cooling systems, visit our Duct-Free Page.)

The difference between an efficient and an inefficient central cooling system can be huge.

From the perspective of comfort: a home with a properly sized and installed quality air conditioning system is one where the temperature inside barely wavers no matter what the weather outside. It’s one where allergens and pollen are removed and every room smells fresh and clean. In such a home, you rarely hear the rushing of air or the noise of a condenser.

From the perspective of cost: today’s high electric rates are changing the way homeowners look at their air conditioning systems. For any system which is starting to show its age, the cost of electricity often makes it a smart choice to upgrade to high-efficiency systems with a fraction of the monthly operating cost.

The experienced staff at Preferred Air can help you make a smart selection of a cooling system that’s right for your home and budget. We’ll explain the important factors like:

  • choosing the right seasonal energy efficiency ratio, or SEER
  • how we properly “size” an air conditioning system for your living space
  • the difference between single-stage and two-stage systems, to maintain temperature
  • the difference in noise levels between systems
  • how intelligent controls reduce operating costs and can allow for control while you’re away from home

When you turn to Preferred for service and repair of central air conditioning units, you have chosen a team of technicians who are well-trained and have “seen it all” for a variety of systems and conditions. You can have the confidence that the repair will be done right — the first time. We’ll do everything possible to provide same-day service for our contract customers.

Learn more: Why are state contractor licenses important?

A word about our staff: By choosing Preferred Air, you are choosing the people you want in your home to install and service your comfort system. Our hiring policies are strict. The trustworthy people we employ are rare and expensive. Our technicians are as focused on their professional capabilities as they are on their moral convictions.