Same-Day Service

We offer same-day service to for all of your heating and air conditioning emergencies

Serving the Community for 36 Years

Serving Sussex, Morris and Warren Counties

Award Winning Family Owned Business

Voted best Heating and Air Conditioning Company in Sussex County for 5+ years running!

Rated 4.9 Stars

Heating and Air Conditioning Technicians you can Trust!

Who We Are

Willco Air Conditioning, Refrigeration & Heating Inc. was founded in Sussex County in 1988, and we’ve been providing heating and cooling services in the area ever since. We have a professional, knowledgeable and fully trained staff so you can trust in the quality of our work. We are committed to getting the job done quickly and correctly 100% of the time.

We carry innovative, high-end products that will help your Heating and Air Conditioning systems run more efficiently and reliably. Pair high-technology products with our outstanding repair and maintenance service, and you have found a match made in Heating and Air Conditioning heaven. Our friendly technicians make repair challenges look easy – so you will be able to get back to a comfortable home in no time. We aim to exceed your expectations by providing you with a quality product, industry expertise and outstanding customer service.

Your whole-home comfort is our priority. That is why we service all makes and models of heating and cooling equipment and offer service seven days a week, 365 days a year.

Willco Air Conditioning, Refrigeration & Heating Inc. is right here in Sussex County to meet your heating and cooling service and product replacements needs. Give us a call at 862-345-6896 or, request an appointment online to learn more. If you’ve had service done by us, we invite you to fill out our customer service satisfaction survey.

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Our Services

Air Conditioning

Top Quality Central Air, Mini Splits, and Rooftop Systems

Indoor Air Quality

Indoor air quality is essential for maintaining a healthy, comfortable living environment, free from pollutants and allergens.


We install best quality Furnaces, Boilers, Radiant Heat Systems.

Heat Pumps

We can design a heat pump system for your home to ensure optimal performance and make sure you take advantage of all available rebates and tax credits.

Water Heaters and Water Quality

Reliable water heaters and superior water quality are crucial for providing consistent hot water and maintaining the health and safety of your household.

  • HVC Offer Details

    Receive up to $1,700 in rebates OR make no payments, incur no interest for 12 months when financing a new Lennox system**

  • SunSource
  • Goulds Pumps
  • Energy Kinetics
  • Lennox
  • Bradford White
  • Mitsubishi Electric
  • Honeywell

Experience Full Service Comfort Anytime

Free Estimates

We usually can give you an estimate on a replacement system the same day or next day.

Full Service Heating and Cooling Company

We have a solution to meet your needs and your budget

Make Your Home A Haven

Your home should be a haven of comfort and tranquility, where every aspect is designed to provide you with the utmost peace and relaxation.

WillCo Clean and Green Energy

At Willco Air Conditioning, we are committed to not only keeping you cool but also protecting our environment. Our energy-efficient air conditioning solutions are designed to minimize your carbon footprint while maximizing your comfort. By utilizing the latest technology and eco-friendly practices, we help you reduce energy consumption and lower your utility bills. Whether it’s through high-efficiency units, smart thermostats, or regular maintenance, Willco ensures that your cooling system operates at peak performance with minimal environmental impact. Choose Willco for a greener, more sustainable way to stay comfortable all year round.


We Can Help with Heating and Air Conditioning Repair

Followed our troubleshooting guide but your furnace still won’t work?

Call us today at 862-345-6896 or contact us online. We’ll come out and figure out the problem.