As a family-owned heating and air conditioning service company, Commonwealth has been helping our Northern Virginia friends and neighbors to enjoy clean and comfortable indoor air year-round for more than 15 years. Serving Lorton, Springfield, Alexandria, Fairfax, Burke, and all of Northern Virginia, weve built our business on one overriding principle: We go the extra mile. Were not looking for a quick sale because were in the business of building relationships. We want to be your AC Service company of choice for many years to come, so guaranteed customer satisfaction is our number one priority.