Johnson Chimney Service has been serving Maryland, Washington DC, and Northern Virginia for over 40 years! Customer satisfaction is our top priority. We take pride in providing our thousands of customers with first-rate service. Johnson Chimney Service serves Washington DC Metro Area gas and oil, residential and commercial customers. Chimney cleaning, damper replacement and repair, chimney relining, chimney caps, solar attic fans, animal removal, furnace and dryer vent cleaning, and much more.