HVAC Contractor in Frederick, MD

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Markool Heating & Cooling is a premier HVAC contractor locally owned and operated in Frederick, MD. Since 2016, our team of skilled technicians has offered high-quality work and emergency services with a personal touch 24 hours a day, seven days a week. Our heating company is Energy Star-certified and a member of the ACCA, our technicians are NATE-certified, and we are a Carrier Factory Authorized Dealer. We also care about our community and donate to Ducks Unlimited, a nonprofit organization dedicated to preserving the wetlands here in Maryland and throughout North America.

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!"

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Trusted HVAC Contractor for Repair in Frederick

Some heating repairs are obvious, but others might require further inspection. Customer service staff are available 24 hours a day, seven days a week to take your call and can send our team of experts to provide the highest standard of service.

Call Markool Heating & Cooling for immediate assistance if you notice any of these issues with your furnace.

Strange noises, such as loud bangs or whistling
Strange odors, like burning oil or rubber
An uncharacteristically high energy bill
The heater doesn’t produce heat
The temperature inside is inconsistent
Poor indoor air quality, especially if your carbon monoxide detector goes off

Professional Heating Company Providing Expert Installation

Here at Markool Heating & Cooling, we love taking care of customers. That includes providing value and ensuring that they are getting the most for their money. Frequent repairs and maintenance on your furnace are a waste of time and money. Upgrading to a newer, more energy-efficient unit can help, reducing the frequency of repair calls and saving money on utility bills. Our technicians are courteous and friendly, prepared to discuss your needs while keeping your best interests in mind. With Markool Heating & Cooling as your local heating company, you can count on reliable installation and impeccable customer service.

Stay Warm with Professional HVAC Maintenance

Like any well-oiled machine, your heating system needs routine maintenance to ensure everything is running smoothly. Our team of skilled professionals keeps your furnace in top shape to maintain improved energy efficiency, better indoor air quality, and combat any minor issues before they become problems.

Markool Heating & Cooling is a proud member of the Frederick community since 2016. We are honored to assist you with your heating needs, so call our team today. We also offer an exceptional line of whole home humidifiers! Check them out now!

Are you trying to beat the Frederick heat? Markool Heating & Cooling is an HVAC contractor that also offers air conditioning services!

Furnace Repair

Was that noise just the wind blowing, or did it come from the air ducts? Call Markool Heating & Cooling at the first sign of trouble for fast, reliable heating repair service 24/7.

Furnace Installation

Ready to upgrade your heating system? Trust Markool Heating & Cooling as your HVAC contractor for the most reliable installation services.

Furnace Maintenance

Winter nights in Frederick can get pretty chilly. Rely on Markool Heating & Cooling as your heating company to maintain your furnace and stay warm all season long.

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