Trustworthy Heating, Plumbing, and Air Conditioning Services for Families in Middletown, De

Are you looking for the best heating and cooling services in Delaware? At Horizon, we proudly serve the homeowners in Middletown and the surrounding communities. With over 30 years of experience, we’ve stayed ahead of the competition by delivering customer service so good you’ll recommend us to your friends. Call us any time day or night for the following services:

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Air Conditioning

Keep your family comfortable, safe, and happy even when the temperature outside soars to new heights. Our air conditioning services include everything from quick-and-affordable tune-ups to upgrades and new unit installation. Not only will we design an AC plan to keep you comfortable, but you’ll notice lower energy bills, too.


When you live in Delaware, you need a reliable heater to stay warm and safe. We understand DE winters and know how to keep families comfortable with repairs and maintenance for furnaces, heat pumps, and more. Call us 24/7 if you have a heating emergency. We won’t leave you out in the cold!


Although most people know us as a heating and air conditioning company, we’re also a full-service plumbing company, too. Our expert team can handle any plumbing jobs, including dripping faucets, clogged drains, broken pipes, ruptured mains, and more.

Horizon Loves Middletown

We’re part of the fabric of 19709 alongside beloved landmarks such as Saint Andrews Park, Frog Hollow Golf Club, and Charles E. Price Memorial Park. We live in the same communities throughout New Castle County as our customers, and we promise always to treat you right.

We offer same-day service, next-day installation, and up-front pricing with no hidden or extra fees. Our professional tune-ups have a money-back guarantee, and industry-leading warranties back all new products. You can rest easy knowing you’re in good hands with Horizon.


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