“Attention to detail by field supervision and project management allowed KDB to commit to schedule and provide a high quality installation.

Robins & Morton
Richardson Indoor Stadium

Mechanical Construction

KDB’s history in mechanical construction dates back to 1960.  KDB provides a complete spectrum of HVAC, plumbing and fire protection services for commercial and industrial projects.  We have constructed projects of varied size and complexity by self-performing and thoughtful teaming.  Pre-construction services including budgeting, scheduling, system selection support, and value engineering are our specialties. Working together with owners, engineers, architects, and construction managers, KDB guarantees a quality and efficient mechanical system. KDB is signatory to union locals 5, 486 and 602 and boasts one of the most capable construction teams in the Baltimore-Washington-northern Virginia metro area.


  • Design-Bid-Build
  • Design-Build Delivery
  • Design & Pre-Construction Service
  • Indefinite Delivery/Indefinite Quantity (IDIQ)
  • Joint Venture/Teaming Agreements


  • New Construction
  • Renovation
  • Tenant Fit-Up
  • Disaster Recovery/Rapid Response
  • After-Market Service & Maintenance


Complete turn-key HVAC, plumbing, and fire protection construction and installation services for commercial and industrial projects.

  • HVAC Piping Systems
  • Medical gas installations
  • Water distribution & waste piping systems
  • Commercial & industrial plumbing
  • Boiler installations & services
  • Ammonia refrigeration systems
  • Process instrumentation installations
  • Air ventilation systems for industrial applications
  • Automatic fire sprinkler systems
  • Pre-Action, Dry-Pipe, Antifreeze, Deluge, Industrial Water Spray Systems
  • Standpipe systems
  • Fire pumps
  • Underground piping networks & fire hydrants
  • ESFR systems
  • Foam Systems
  • Clean Agents
  • Backflow preventers
  • Water storage tanks