Trustworthy Heating, Plumbing, and Air Conditioning Services for Families in Magnolia, DE

Magnolia, DE, homeowners stay comfortable in their homes all year long by choosing Horizon for all of their heating and cooling needs. We’re dedicated to complete customer satisfaction with same-day service, next-day installation, and up-front prices. For over 30 years, we’ve served families just like yours. How can we help you today?

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Air Conditioning

Professional tune-ups and regular maintenance help keep your air conditioning system working at maximum efficiency – and help keep your energy bills low! Ensure your family stays cool all summer long. We offer a full line of AC services, including filter, thermostat, and new unit installation.


Winter in Delaware is fun and festive, but it’s also cold. Schedule a tune-up to make sure your heater stays safe and performs at maximum capacity. We handle all home heating services, including repairs for water heaters, heat pumps, furnaces, and more. If your heater fails or slows, call us any time for 24/7 emergency services.


Although we’re perhaps best known for our heating and air conditioning services, we’re also experts in home plumbing. Call us to fix faucets, drains, sump pumps, water heaters, sewer lines, and wherever else water flows. Routine maintenance is an easy, inexpensive way to help prevent unexpected water damage to your home.

Horizon Loves Magnolia

We love helping our friends and neighbors in Magnolia, Delaware. Our service area stretches across the entire 19962, including near such local landmarks like Jonathan’s Landing Public Golf, Ted Harvey Conservation Area, and the Historic John Dickinson Plantation. As proud members of the community, we treat all customers with fairness and friendliness.

You’ll love the plumbing, AC, and heater services we provide. Contact us today to learn how we can help!

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Connecting you to your local Horizon team for expert technicians, same-day service, and a job done right.