Industrial refrigeration contractor / Maryland
McDonough Mechanical Services, Inc.
Forest Hill, MD
Last checked 2026-10-17
Company profile
About McDonough Mechanical Services, Inc.
McDonough Mechanical Services (MMS) is an industrial refrigeration specialist at 343 Granary Rd., Unit D, Forest Hill, MD 21050. Its site documents industrial refrigeration installation and service, ammonia systems, preventive maintenance, PSM and RMP third-party audits, mechanical integrity inspections, P&ID generation, compressor service, and a hazmat team trained at the technician level for ammonia response. The cited page does not publish a 24/7 claim.
Technical scope
Systems & facilities
- Systems
- Ammonia (NH3/R-717)
- Services
- Preventive maintenanceCompliance documentation
Service area
States served
Research references
Sources
Last checked 2026-10-17
- Home - McDonough Mechanical Services, Inc.accessed 2026-10-17