Reliable Heating, Plumbing, and Air Conditioning Services for Customers in Olney, MD

For many years, Horizon has provided quality heating, cooling, and plumbing services to Olney, MD. Our top priority is to reduce stress and finish to-do lists for customers. We stand behind our products and services with warranties and a satisfaction guarantee.

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Give us a call today, and let us know how we can help with your next home improvement project.

Air Conditioning

Our professional technicians install, replace, and repair all types of air conditioning systems. We provide professional tune-ups to keep your AC cool throughout those hot Maryland summers.

Give us a call to help with anything from programming your smart home thermostat, to filter replacements, to troubleshooting fan problems. We’re here to help!


Your heater needs regular tune-ups to keep it running longer, let us help you maintain your heating system so it can keep you warm and safe for many years to come.

We are proud to offer upfront, transparent pricing to all of our customers, and we do not charge extra for 24/7 emergency calls.


Horizon has a reputation for being the leading heating and cooling company in Maryland, but did you know that we offer a full range of plumbing services too? Our trained plumbers fix any leak or clog professionally and with care. We get the job done right the first time.

We also offer water softening and filtration services to prevent pipe corrosion and future leaks.

Horizon Loves Olney

Olney, MD 20832, is home to a lot of fun attractions like the Olney Theatre Center and the Field of Screams in the fall. At Horizon, there is something greater in Olney, our customers.

We look forward to serving you and are available 24/7 to take your call. How can we help you today?

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