Book Online

HVAC Company in Middletown, MD

We Offer Financing

See more details.

Markool Heating & Cooling is the right HVAC company for customers in Middletown, MD. As a full-range heating company, we’re ready to serve our customers’ needs. We’re a Carrier Factory Authorized Dealer, providing system upgrades and adding new comfort to the area’s historic homes. We keep you warm through Maryland winters.

ACCA

Carrier Factory Authorized Dealer

EPA Certified

NATE Technicians

"The Markool Heating & Cooling team did an excellent job with my system check up. Highly recommend the maintenance plan to make sure your system is always running at peak efficiency!"

See More 5 Star Reviews

Responsive HVAC Company for Repair in Middletown

Trouble with your heating system in Middletown isn’t cause for worry, it’s just time to call Markool Heating & Cooling. We’re renowned for our diagnostic ability, so we’re your best call for effective heating repairs. For urgent problems, we’re available 24/7 to make sure your family stays warm. We explain the issues and your options for repair so you’ll make an informed decision, and with fully stocked vehicles we’re ready to make one-trip repairs.

Watch for your heating system for performance other problems, and call us for heating repairs:

Unusual smells or sounds, especially as the unit starts up
Blower motor noises or lack of airflow
Running a long time to reach your desired temperature
Poor air quality
Carbon monoxide alerts

Convenient Middletown Heating Installation

From time to time, it’s important to ask whether your heating system can still provide the reliability and energy efficiency that you’re looking for. A new energy efficient system can keep you warm with a feeling of confidence that an older unit can’t. As a local HVAC company that Middletown residents rely on, we can recommend units that are right for the local climate, and install your selection at your convenience, showing your family how to operate any new features.

Professional Heating Company for Maintenance

Preventive heating system maintenance is the key to energy efficiency, reliability, and longer system lifespan. We visit in the off season at your convenience. You also get an expert heating technician’s eyes looking over everything from your heat source to ventilation motors and belts, keeping the chance of midwinter repairs as low as possible.

Markool Heating & Cooling is here for you when the air turns cold in Middletown. For an HVAC company you can rely on, call our team and get expert help today. We offer excellent whole home humidifiers as well! Check them out now!

We’re not just your heating company, we provide complete AC services including installation, repair, and maintenance for year-round comfort.

Furnace Repair

Trust Markool Heating & Cooling, your preferred heating company for fast, expert diagnosis and skilled heating repairs when you need them most. Our reliable heating technicians are here for you 24/7.

Furnace Installation

Scheduled in the off season or as an urgent replacement, we offer top-rated heating systems with a variety of technologies. Plan ahead and find out about our new heating system offerings!

Furnace Maintenance

The heart of your reliable heating system is our trusted heating maintenance. Keep warm and manage energy costs with regular system tune-ups by our top quality technicians.