Roof Sumps and Drain Piping

Contrast Mechanical is a full service mechanical construction company serving the commercial and industrial markets throughout Michigan.  Among our services, we install and service all rooftop mechanical systems.

We offer a full range of services for rooftop mechanical systems, including the installation, repair and relocation of the following systems:

  • Roof sumps
  • Overflow sumps
  • Roof conductors
  • Drain piping
  • Plumbing vents
  • HVAC roof curbs and vents
  • Gas piping and pitch pockets
  • Duct and refrigerant line insulation


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