All Temp Heating and Air Conditioning has been servicing Maryland’s heating, air conditioning and sheet metal needs since 1984. We are a full service, licensed and insured HVAC contractor. All Temp services both the commercial and residential markets.

In the consumer marketplace, All Temp provides service and replacement for existing furnaces, boilers and air conditioning units. Additionally, we work with homeowners to provide affordable and energy efficient solutions for all of their replacement and add-on HVAC needs. We will always provide the highest level of quality service and product in the area.

Our commercial services are unparalleled and we have serviced builders, contractors and government contracts in Baltimore, Howard, Anne Arundel, Frederick, Harford, Montgomery and Price George’s counties. All Temp has worked with new construction, custom home builders, and rehab work in single family, town homes and multi-family dwellings. In order to serve you better, we have our own sheet metal shop on site.

Call us today at 410.467.3311 for all of your HVAC needs!