M S Johnston Co
HVAC Contractor - Hagerstown, MD
Services
- Air & Water Systems Balancing
- Air Duct Cleaning
- Attic Insulation Installation
- Attic Ventilation Installation
- Basement Insulation Installation
- + Show all services
About M S Johnston Co
As the longest-tenured York dealer in the world, M.S. Johnston Co. excels at building and sustaining relationships. We value each association with customers, suppliers and professional groups. Along with the company's beginnings in commercial refrigeration, we have expanded to include the food service industry, heating and air conditioning and mechanical engineering. We offer sheet metal, commercial, and industrial HVAC design/build, along with service and sales of restaurant and HVACR equipment.
Credentials & Stats
92 years in business
Ratings and Reviews
Areas We Serve
- Blue Ridge Summit
- Waynesboro
- Frederick
- Big Pool
- Boonsboro
- Braddock Heights
- Brownsville
- Burkittsville
- Cascade
- Cavetown
- Chewsville
- Clear Spring
- Emmitsburg
- Fairplay
- Funkstown
- Hagerstown
- Jefferson
- Keedysville
- Keymar
- Knoxville
- Ladiesburg
- Maugansville
- Middletown
- Myersville
- New Midway
- Rocky Ridge
- Rohrersville
- Sabillasville
- Saint James
- Sharpsburg
- Smithsburg
- Thurmont
- Walkersville
- Williamsport
- Woodsboro
Business Info
Address
13261 Pennsylvania Ave
Hagerstown, MD 21742
Project Gallery
Photo | Project | Date | Description | Cost | Home |
|---|---|---|---|---|---|
| Woodland Way Heat Pump Equipment Replacement | Oct 2013 | Heat Pump Equipment Replacement. | $4k | Hagerstown, MD | |
| Ingram Drive Air Conditioning Equipment Replacement | Oct 2013 | Air Conditioning Equipment Replacement. | $4k | Smithsburg, MD | |
| A/C Equipment Replacement w/ Heat Pump Equipment | Aug 2013 | A/C Equipment Replacement w/ Heat Pump Equipment. | $8k | Hagerstown, MD | |
| Edgemont Condensing Unit and Indoor Coil Replacement | Aug 2013 | Condensing Unit and Indoor Coil Replacement. | $5k | Smithsburg, MD | |
| Potomac Air Conditioning Equipment Replacement | Jul 2013 | Air Conditioning Equipment Replacement. | $7k | Williamsport, MD | |
| Jennifer lane Heat Pump Equipment Replacement | Jul 2013 | Heat Pump Equipment Replacement. | $6k | Hagerstown, MD | |
| Woodlands Run heating and Cooling Replacement | Jun 2013 | Replaced thru-the-wall gas heating and electric cooling system. | $4k | Hagerstown, MD | |
| Chairmain Road Ductless Heat Pump System | Mar 2013 | Installed ductless heat pump system. | $7k | Blue Ridge Summit, PA | |
| Forest School Road Ductless Heat Pump System | Feb 2013 | Installed ductless heat pump system. | $8k | Smithsburg, MD |
