Boilers, storage tanks,pipe fabrication, welding, Massachusetts based construction service
Boiler and Pipefitting Services

For boilers, environmental, power and process piping and storage tanks, customers want a single-source service contractor who is dependable and knowledgeable. They look for someone who can do it all from the ground up, and do it right the first time, on time. Keystone Construction and Maintenance Services has superior ability, combining our engineering, supervision, craftsmen, equipment and experience to provide construction and maintenance solutions that define success.
Boiler Services
  • New Boiler Installation
  • Boiler Retrofit and Tube Repair
  • HRSG Erection, Installation, and Repair
  • Breeching, Plenum, and Stack Installation
Environmental Services
  • SCR, SNCR Installations
  • Scrubbers, Precipitators, Baghouse Installation and Repair
  • Combustion Turbine Inlet Filter House, Erection and Maintenance
Power & Process Piping
  • On & Off Site Pipe Fabrication and Installation
  • Hanger Assembly and Installation
  • Installation and Test of Valves, I&C and Inline System Components
Tanks / Pressure Vessels
  • Condenser / Heat Exchanger Assembly and Repair
  • Field Erection, Maintenance and Repair of Process, Storage Tanks and Silos

 

WELDING SERVICES
Working closely with our authorized inspector, Hartford Steam Boiler, Keystone is a leader in the welding of boilers, pressure vessels, power and process piping, tanks, and structural steel. Our in-house structural/ welding engineers and QA/QC Manager assure strict compliance and documentation to all applicable welding codes including ASME, AWS, API, ANSI, FDA.

Certificates of Authorization

  • ASME Section I (Power Boiler) "S" Stamp
  • ASME Section VIII Div. 1 (Unfired Pressure Vessel) "U" Stamp
  • NBIC (Repair & Alteration) "R" Stamp
  • Member of ASME and MCAA
©2006 Keystone Construction and Maintenance Services • 64 Forest Ridge Drive - Rowley, Massachusetts 01969 • P/ 978-948-3865