Piping & Plumbing Installations

Notch is your prime contractor for the full range of piping used in manufacturing processes, plant utilities, and building services. For more than two generations, industrial piping has been a business mainstay. Our reputation is built on the quality, craftsmanship, and performance of the systems we develop, as well as the continuous service and support we provide our customers.

All of our pipe welders are certified to ASME Section IX and are capable of working with a broad array of materials and welding methods. From welding and threading to gluing and soldering, our team has the expertise to join any metal or plastic piping material using the most durable, secure method. We can even develop and execute a prefabrication plan for your piping system, lowering overall job costs and reducing facility disruptions. With decades of experience spanning a wide range of industries and applications, we have the knowledge and skill to address any type of process piping challenge your facility may face.

Our customers demand quality, operating enterprises where reliable, high-performance piping is critical.


  • Chemical piping per ASME B31.3
  • Process gas piping (nitrogen, oxygen, hydrogen, etc.)
  • Convey piping
  • High purity orbital welding on sanitary stainless steel tubing per ASME BPE
  • Jacketed piping systems (steam, hot oil, chilled water)
  • Tank farms and reactor rooms
  • Hydraulic and pneumatic tubing
  • Plant and instrument air piping
  • Steam and condensate systems per ASME B31.1
  • Chilled water and free cooling systems
  • High pressure ASME stamped PP steam piping
  • High pressure natural gas system design and state permitting
  • Piping per ASME B31.9
  • Potable water plumbing
  • Backflow preventers
  • Natural gas/LP gas piping
  • Drain and waste piping
  • Refrigeration piping
  • HVAC piping
  • Central boiler and chiller plants
  • Cogeneration systems
  • Carbon steel
  • Stainless steel
  • Copper
  • Inconel
  • Hastelloy
  • Chrome-Moly
  • Alloy 20
  • Aluminum
  • Plastic (PVC, CPVC, Polypropylene)
  • Teflon-lined piping systems
  • Fiberglass (FRP) piping systems
  • Connecticut Mechanical Contractor – MEC 1094
  • Connecticut Unlimited Heating, Piping & Cooling Contractor – HTG 0389811-S1
  • Connecticut Plumbing & Piping Unlimited Contractor – PLM-0280742 P1
  • Connecticut Registered Professional Engineers
  • Massachusetts Master Pipefitter – PM-030953
  • Massachusetts Plumbing Corporation 2410
  • Massachusetts Refrigeration Contractor – RC-019404
  • Massachusetts Sprinkler Contractor – SC-007053
  • Massachusetts Registered Professional Engineers
  • New Hampshire Master Plumber 3965
  • Rhode Island Master 1 Pipefitter 00006620
  • Rhode Island Master Plumber MP-002173
  • Rhode Island Master Refrigeration 00007427
  • Rhode Island Professional Engineer
  • Vermont Master Plumber PM-03659
  • Vermont Natural Gas Installer GN-03448(H)
  • Vermont Professional Engineer

Ready To Get started?