Tri-County Aire

We’re Tri-County Aire, a locally owned HVAC and plumbing team based in Charlotte Hall, Maryland. For decades, we’ve helped homes and businesses stay comfortable through Southern Maryland’s changing seasons. We serve Calvert, Charles, and St. Mary’s Counties, as well as King George County, Virginia. Because we know the region’s climate, older homes, and communities, we bring local experience to the work we do.

Our factory-trained, NATE-certified technicians install, maintain, and repair major heating and cooling systems for residential and light commercial properties. Our services include furnaces, boilers, central air conditioners, heat pumps, HVAC systems, and geothermal contracting. We also help improve indoor air quality through equipment services, duct cleaning, sealing, and renovation. For residential and light commercial projects, we manufacture custom ductwork to suit the needs of the property. Our commercial HVAC specialists can provide system design along with installation, maintenance, and repair for gas- and oil-fired furnaces and boilers, central air conditioners, commercial and industrial HVAC systems, indoor air quality equipment, and ductwork.

Our plumbing services include installation, repair, and maintenance for traditional and tankless water heaters. We also provide professional drain cleaning to remove blockages, grease, debris, and buildup while helping prevent future plumbing problems. When an urgent heating or cooling issue arises, our 24/7 emergency service is available every day of the year. Whether we’re maintaining an existing system, completing a repair, or installing new equipment, our focus is on delivering comfort with care to the homes and businesses we serve.