Rowan Heating & AirConditioning · Since 1958

Rowan Heating & Air Conditioning

Reliable Heating & Cooling for Highland and Howard County

Family-owned and operated in Howard County since 1958 — honest, dependable heating and cooling you can trust.

Our Services

Full-service heating and cooling for your home or business.

Heating

Furnaces (gas, electric, and oil) and boilers — repair, service, and installation to keep your home warm all winter.

Air Conditioning

Cooling system repair, seasonal service, and new installations sized right for your home.

Heat Pumps

Sales, service, and repair of efficient heat pump systems for year-round comfort.

Geothermal Systems

Design and service of ground-source geothermal systems for long-term efficiency.

Custom Sheet Metal & Ductwork

In-house fabrication of custom sheet metal and ductwork for a precise fit.

Aeroseal Duct Sealing

Aeroseal duct sealing that tightens your duct system to improve comfort and efficiency.

Indoor Air Quality

Humidifiers, dehumidifiers, air cleaners, and modern thermostats for healthier indoor air.

Maintenance & Service Agreements

Planned maintenance and service agreements that keep your equipment running reliably.

We service and install Trane, Carrier, and WaterFurnace systems.

Why Choose Us

Licensed & Insured in Maryland

Fully licensed and insured for work throughout the state of Maryland.

Family-Owned Since 1958

Three generations of honest, dependable service to Howard County families.

Honest, Upfront Pricing

Clear estimates and fair pricing — no surprises, no pressure.

Fast, Reliable Service

We understand what you're going through and work to get you comfortable again quickly.

Service Area

We proudly serve Highland, Clarksville, Fulton, Dayton, Maple Lawn, and surrounding Howard County, MD.

Request Service
  • Highland
  • Clarksville
  • Fulton
  • Dayton
  • Maple Lawn
  • Howard County

What Our Customers Say

We have used Rowan Heating & Air Conditioning on three occasions -- always emergencies. The first time our furnace failed on the coldest day of the winter. BG&E said they couldn't service us for at least 4 or 5 days. Rowan came out the next day. Yesterday, our air conditioning stopped working on the hottest day of the summer. We called Rowan around 9 pm last night and someone actually answered the phone, was helpful in telling us what to check until someone could come out, and Jake, the service tech who came out, was professional, thorough, knowledgeable, and just a great guy. He had us up and running before noon today! I love this company because they understand what their customers are going through when the heat and a/c aren't working and they care enough to help ASAP. I also love that they're a family-owned business. Their owner Teresa rocks too! I won't call anyone else for our heating and a/c needs.
— Marcia White
The Rowan family has been taking care of my family's heating and cooling needs in two houses since the summer of 2007. We are very satisfied. The technicians are courteous, thorough, very professional and knowledgeable about oil and gas furnaces as well as electric cooling systems. They do all the analytical work to make sure the systems are working efficiently. They keep detailed notes so all tests are documented and available for review. When we have had emergencies they have been quick to respond. I recommend without any qualification.
— John Duncan
What great folks! My heat broke when it was freezing in DC. After two days of trying to get service from other companies, I saw the Rowan van parked in my neighborhood. I called the number on the van and they sent Dean over in a matter of minutes. What a nice guy! Everything is fixed and Dean gave some maintenance recommendations. This is a family-run business and I feel they're good people.
— Ebony Qualls

Request a Quote

Tell us what you need and we'll get back to you. Prefer to talk? Give us a call.

Mail
P.O. Box 109, Fulton, MD 20759
Hours
Monday–Friday 9:00 AM – 5:00 PM