Tri-County Aire

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HVAC Contractor-Charlotte Hall, MD

Heating & Air Conditioning Service in Charlotte Hall

With the community’s cool winters and warm summers, many residents of Charlotte Hall use their home comfort systems throughout the year. At Tri-County Aire, we provide exceptional air conditioning service so that you can enjoy a comfortable home all year long. Our factory-trained technicians will inspect your HVAC system and make any necessary adjustments. For your convenience, we also offer maintenance contracts.

Heating & Air Conditioning Repair in Charlotte Hall

If your unit unexpectedly breaks down, our experienced technicians will respond promptly to your calls, and we’ll have your system repaired as quickly as possible. If you decide to upgrade to a new HVAC system, we will recommend the best new unit for your home and have it installed promptly. Whether you are in need of air conditioning repair, service or installation, Tri-County Aire is here to help.


History of Charlotte Hall

In the late 1600s, a mysterious illness began affecting numerous residents of Southern Maryland. Many people believed that bathing in one of the local springs helped cure the illness, and the governor ordered a hospital and care home to be established near the spring. The hospital was one of the first of its kind in the colonies, and the local population began to grow as more people heard about the cure. In 1774, the Charlotte Hall Military Academy was built on the grounds of the former hospital. Named in honor of England’s Queen Charlotte, it was one of the oldest institutions in the country. After the school closed in 1976, the building was converted into the Charlotte Hall Veterans Home. Today, much of the area is now part of the Charlotte Hall Historic District.


The relatively small community of Charlotte Hall has a total area of about five square miles. Located in St. Mary’s County, it is one of the oldest areas in Southern Maryland. Situated off of State Route 5, Charlotte Hall is approximately 40 miles south of Washington, D.C., and it is about 70 miles south of Baltimore.


According to the latest estimates, Charlotte Hall has a population of about 1,400 people. The median value of a home in Charlotte Hall is approximately $330,000, and the median income is about $65,000. In addition, most of the residents are married. Almost 75 percent of the residents have graduated from high school, and about 12 percent of the adults have graduated from college. Charlotte Hall is also home to a large Amish community.

Climate and Weather in Charlotte Hall

Charlotte Hall averages almost 47 inches of rainfall each year. July is the warmest month of the year, and the average high temperature is 87 degrees. January is the coldest month of the year, and the average low temperature is 26 degrees. The area also experiences high humidity.

Climate and Weather

Mechanicsville’s temperate climate is marked by mild transitional seasons, hot summers and chilly winters. Due to its location on the Atlantic Coastal Plain, Mechanicsville is heavily influenced by the nearby waters of the Gulf Stream. In summer and early fall, these warm waters draw tropical moisture that can produce coastal flooding and high winds. In the winter, nor’easters and clippers can bring cold, driving rain or snow to the area. Fortunately, the nearby waters also moderate Mechanicsville’s temperatures and shelter it from the extremes that plague inland regions.

Local Events and Popular Attractions

There are many Amish farms located throughout Charlotte Hall and the surrounding communities. The North St. Mary’s County Farmers Market is located in the Charlotte Hall Library and features local produce, baked goods and other specialties from Amish businesses. The Dent Chapel was built in 1883 on the grounds of the Charlotte Hall Military Academy, and today, it is a popular stop for visitors touring the historic area. For more information about local attractions, including Ye Coole Springs and the new Three Notch Trail, tourists can stop by the St. Mary’s County Welcome Center, which was formerly the home of the school’s headmaster.



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