Keystone Construction and Maintenance Services Homepage
Homepage for Keystone Construction and Maintenance Services of Massachusetts.

About Us
General information about Keystone's power generation and industrial contractor services in New England.

What's new at Keystone?
New headquarters in Rowley, MA for Keystone's office and fabrication shop.
Keystone erected it's first wind turbine.
Involvement in Alternative Energy Sources in New England

Commitment to Safety
Keystone's corporate requirement for safety

Employment Opportunities
Job opportunities for construction industry professionals

Maintenance Services

• Boilermaker Services (boilers, boiler retrofit and tube repair, boiler installation)
• Environmental Services (alternative energy sources, storage tanks, silos)
• Power & Process Piping and Tanks
• Welding Services
• Process Machinery - Millwright Services
• Combustion, Steam and Hydro Turbine Generator
• Structural and Miscellaneous Steel Erection (structural steel foundations, structural steel strips, structural steelwork design)

Boiler - Pipefitting
Single service contractor for boilers, environmental, power and process piping and tanks, pressure vessels, welding.

Structural Steel Erection
Steel erection services on time and on budget.

Turbine - Millwrights
Turbine centerline (gas, steam or hydro) engineers.

General Construction
Other building maintenance services

Industries
Industries and Customers Keystone Maintenance and Construction has served.

Project Profiles
Successful projects implemented by Keystone

Central Artery Tunnel Project - The Big Dig
Keystone was instrumental in this challenging infrastructure project with one of the largest highway tunnel ventilation systems in the world.

Distrigas - LNG Processing Plant
Keystone implemented the erected the structural steel for this LNG Gas Vaporizer Processing Facility and two 200 foot utility stair towers.

Matep Facility Combustion - Turbine Upgrade Project
Keystone provided engineering, construction management, and construction trade services to MATEP's extensive power generation upgrade.

Contact
How to contact Keystone's Corporate Massachusetts' office.