
Leonardtown HVAC Service
Leonardtown experiences its fair share of seasonal fluctuations, with hot, humid summers and cold winters. The mix of historic waterfront homes at Frog Town and newer developments like The Meadows at Town Run calls for a blend of traditional and innovative HVAC solutions, depending on the needs of the property. Great Mills Heating & Air Conditioning has over 50 years of experience, and our technicians are factory-trained and NATE-certified. We’re available 24/7 to meet your HVAC needs.
Call (301) 381-2679 today.
Seasonal Solutions for Home Comfort
Maryland's changing seasons present distinct challenges for maintaining a comfortable and efficient home, making reliable HVAC systems essential. Our services are designed to provide comfort year-round from delivering cozy warmth during the cold and wet winter months to keeping your home cool and humidity-free in the summer. We also offer forward-thinking solutions like indoor air quality enhancements and geothermal systems to enhance energy efficiency and sustainability.
Winter Warmth
Heat pumps and traditional heating systems, like furnaces, are at the core of our winter services. Heat pumps provide enhanced energy efficiency by transferring heat instead of generating it, making them ideal for fluctuating winter temperatures. For homes needing more robust heating solutions, our high-efficiency furnaces distribute consistent warmth while optimizing energy use.
Routine maintenance is key to keeping your heating system ready for the coldest days. Our team performs thorough inspections and cleans system components to help get peak operational performance when you need it most. If it’s been a while since your heating system was updated, we can also recommend modern systems designed to address rising energy costs while maintaining a maximum level of comfort.
Zoned heating systems are an excellent solution for homes looking to achieve both comfort and efficiency. These systems allow you to customize temperature settings for different areas of your home, delivering warmth where it’s needed most while minimizing energy waste.
Summer Comfort
Maryland summers bring their own set of challenges, with soaring temperatures and high humidity putting extra strain on your cooling system. Having a reliable air conditioning unit is vital to maintaining a cool and refreshing home during the hottest months. Whether you need installation, repair, or maintenance services, our team is equipped to keep your air conditioning unit performing efficiently, even in the face of intense summer heat.
We offer energy-efficient air conditioners and heat pumps that balance cooling capabilities with a reduced carbon footprint. Ductless mini-split systems are another excellent option, especially for homes seeking targeted cooling for smaller spaces without requiring major ductwork. Additionally, we optimize systems for dehumidification. Controlling indoor moisture improves not only comfort but also helps protect your home from mold and mildew.
Regular maintenance allows us to address common challenges such as clogged filters or reduced airflow due to accumulated debris. Our proactive services are designed to keep your cooling systems in good condition, reduce breakdowns, and provide consistent performance throughout the season.
For homeowners seeking long-term efficiency and sustainability, geothermal systems offer unrivaled energy-saving benefits. These systems leverage the stable temperatures beneath the Earth’s surface to provide both heating and cooling, cutting down on utility costs and reducing environmental impact. With proper installation and maintenance, geothermal options deliver reliable comfort regardless of the season.
Breathe Easier
High humidity, allergens, and pollutants often accompany Maryland’s seasonal transitions and coastal environment. Our indoor air quality solutions include air purifiers, humidifiers, and dehumidifiers. By improving ventilation and controlling airborne particles, we help create a healthier and more comfortable home atmosphere.
Comfort for All Seasons
Seasonal changes don’t have to disrupt your home’s comfort. Our HVAC solutions empower Leonardtown homeowners to enjoy energy-efficient heating, cooling, and air quality solutions that make every season more manageable.
As a family-owned business, we know the stresses that come with HVAC work, including concerns over finances. To make important work accessible to as many people as possible, Great Mills Heating & Air Conditioning makes payment plans and financing available through our office. We hope the options we offer enable you to get the work you need done while still managing your budget.
Call (301) 381-2679 or contact us online today to get a free estimate. We back our work up with a robust warranty.

Hear From Our Happy Customers
-
“I have used them for my rentals, and referred them for business clients. The customer service on the phone is always helpful, and they go over & above for customers.”Lynda
-
“Professional and didn't try to make me feel like more was needed than just a repair. I'm happy to have found an honest company finally!!”Gail
-
“We've been doing business with Great Mills HVAC for over 15 years, and their service is always quick, professional, and friendly.”Bill
-
“Great Mills HVAC was quick to respond to my emergency call for repair. The problem was quickly discovered and solved on site.”Shirley
-
“We have been doing business with Great Mills Heating & A.C. since we built our house in 1997. They are professional, polite, courteous, and reasonably priced.”Ted
-
“GM definitely earned a 5-star rating and not just for the last job but for all the many jobs they've done for me in the past 25 years.”Ray
-
“Great Mills Heating and Air just installed my hot water heater and installed my HVAC system 4 years ago. I have been impressed with them both times.”Kathryn
-
“The service team was fast, professional, and punctual. I needed a quick adjustment within a couple of weeks and they sent a tech out, same-day, without any resistance.”Adam
-
“Been using Great Mills Heating and Air for over 25 years. They provide excellent service. Employees are professional, knowledgeable, and friendly.”Barbara
