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Full Service Mechanical Contractor
Providing 24/7
Heating, Refrigeration & Air Conditioning
Maintenance, Repair, and Installation

We service everything:


  • Boilers
  • Chillers
  • Cooling Towers
  • Rooftop Equipment
  • Pumps
  • Heat Pumps
  • Air Handlers
  • Variable Frequency Drives
  • Oil & Gas Fired Equipment

We offer System Design Services to Complement our Installation Capabilities:


  • Air Handling Equipment
  • Building Automation Controls
  • Chilled & Condenser Water Systems
  • Ductless Mini Split Systems (including VRF Multi-Zone)
  • Geothermal Equipment
  • Hydronic Heating Systems
  • Piping Systems
  • Welding

Customer Testimonials

" We have received numerous compliments about the professionalism displayed along with comments about the improvement notice in temperatures, air flow, etc. I highly recommend Building System Solutions."
Melinda Bednarik, Annapolis Management Company
"Building System Solutions has provided professional, comprehensive, and courteous service personnel. They have proven themselves to be responsive even during severe weather events, and after‐hours emergencies. Building System Solutions has delivered excellent results, and above all else maintains an honest, ethical relationship with Holy Trinity. I would encourage you to engage Building System Solutions and have confidence that you will not be disappointed."
Christopher Kehoe, Holy Trinity Church
"I have been very pleased with the honesty, workmanship, and professionalism from Mr. Younger and his staff. I highly recommend Building System Solutions."
Alicia Trust, Twenty Ridgely Limited Partnership

Preventive Maintenance

Flexible Agreements Available

System Repair

24/7 Emergency Service

Equipment Installation

Complete Comfort Systems