M.S. Johnston has been the mechanical contractor for Jefferson, MD since 1932. Our records show 4 completed projects in Jefferson, including 3 commercial HVAC projects, 1 commercial refrigeration project. Our service trucks have run 30 calls to Jefferson businesses, so the technician who arrives has usually been to the building before.
What we do in Jefferson
- Commercial HVAC — design, installation, and service
- Commercial refrigeration — design, installation, and service
- Emergency service for refrigeration and rooftop equipment
- Mobile refrigeration rentals when a walk-in goes down
Work we have completed in Jefferson
A sample of commercial projects in and around Jefferson:
Why Jefferson businesses call us
One contractor covers the whole building. The rooftop units, the walk-in cooler, the kitchen line, and the ductwork that ties them together all come from the same company, fabricated in our own sheet metal shop. When something fails you make one call instead of three, and nobody argues about whose equipment it is.
We are the longest-tenured York dealer in the world, and we have been doing this from the same Hagerstown address since 1932. That matters in Jefferson because the buildings we service, we often installed.