All Temp Heating and Air Conditioning was started in 1984 by Jeff Green, President and John Guanti, Vice-President. Our goal then and now is to provide quality service at affordable prices. We have a fully equipped service and installation department as well as a top of the line sheet metal fabrication shop. All Temp provides service and installation in the commercial and residential marketplace. Our Inner Harbor location is convenient to Baltimore and the surrounding counties.

All of our clients receive personal hands on service, including 24 hour emergency service. In many cases you can obtain an estimate over the telephone. All Temp is an equal opportunity employeer and we have an AAA rating from the Better Business Bureau. Please allow All Temp Heating and Air Conditioning to help you with all of your heating and air conditioning needs.