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Heating & Cooling Services

Chilltrol One Hour Heating & Air Conditioning is ready to take care of all your heating and air conditioning needs including installation, repair, replacement, and maintenance.

  • Air Conditioners
  • Boiler
  • Furnaces
  • Indoor Air Quality
  • Heat Pumps
  • Thermostats
  • Air Handler

Learn More About Our Services

Protection Plans

What would happen if you never changed the oil in your car? Like your car, your home's cooling and heating system required regular maintenance and service to operate safely and efficiently.

Join Home Comfort Collection today and receive a wide variety of benefits.


Get Details On Our Protection Plans

Our Difference

How do you know a company cares about the quality of their work? They stand behind it - that's how. At Chilltrol One Hour Heating & Air Conditioning, the warranties and guarantees are industry leading because of our experienced technicians and the high quality parts we use. Our technicians are friendly, clean, polite, drug-free and experienced--and our techniques are state-of-the-art, guaranteed!

Learn More About Our Difference

As the first home services partner of Children's Miracle Network, One Hour Air Conditioning and Heating is working to help children in local hospitals. We've always strived to provide comfort and service to our customers, and we are excited to extend that goal towards patients served at children's hospitals in Baltimore and beyond. Johns Hopkins Children's Center is a part of the Children's Miracle Network, and we're thrilled to support the children and families treated by this hospital, right here in our own backyard.

Every dollar we raise, with your help, will go to support research and training, purchase equipment, and pay for the care of every child that needs treatment. More importantly, all money raised in the area will stay right here in the community and benefit the children at Johns Hopkins. Call us to learn more!

Protect yourself from unexpected costs with a Heating & Cooling Essentials Plan by Direct Energy.

Click here to find the right plan for your home.

HVAC Contractor in Baltimore & Central MD

Serving Central & Southern MD including Montgomery County.

One Hour Air
In Central Maryland

When you need reliable Severn, MD, air conditioning repair, you can trust the experienced team of technicians at Chilltrol One Hour Heating & Air Conditioning to get to work for you. We proudly deliver reliable HVAC services to property owners throughout Hanover, MD, and the surrounding areas. Whether your AC is acting up, running inefficiently, or is not working at all, our team of technicians is here to provide you with the excellent services you need to get your system running properly again.

At our company, our HVAC technicians can handle any repairs you need for your air conditioning system. Regardless of the issue, we will implement a reliable solution for you. Our prompt, and friendly technicians are here to deliver exceptional repairs, maintenance, and installation services. We will always work in a timely and efficient manner, and we even offer same-day service when available. Whether you live in Severn, Columbia, Crofton, Elkridge, or any of the surrounding areas, we will be to your property on time for your appointment, guaranteed.

When it comes to Severn, MD, air conditioning repair services, Chilltrol One Hour Heating & Air Conditioning is the team to trust. We work on both commercial and residential properties in Hanover, MD. Regardless of your needs or your budget, we will work hard to satisfy you. To schedule your appointment, call us today.

A Family Of Home Services:

Strong partnerships and a national support system.