Trade & Technical Schools in Potomac Heights 1 Trade & Technical Schools in Potomac Heights Potomac Heights SearchAll (12)Schools (K-12) (2)Trade & Technical Schools (1)Churches & Places of Worship (2)Civic & Community Organizations (1)Tire Shops (1)HVAC & Air Conditioning Services (1)Southern Maryland HVAC Academy Trade & Technical Schools4275 Hawthorne Rd