Long Engineering

Long Engineering LLC offers commercial HVAC services, residential HVAC services, heater installation, heater repair, AC installation, AC repair, generator services, and home improvement throughout the Washington–Baltimore corridor. Properties across this region vary widely—from older housing stock in established neighborhoods to newer developments along major routes—and each demands attention to function over flash. Whether you manage a commercial building in Baltimore or own a home in Bowie, your systems need to work reliably when it matters most.