Colonial Machine offers top of the line structural and pressure retaining welding and fabrication services.

We have served the nuclear power industry for decades, supplying technically complex venturi-type flowmeter and spool assemblies.

Our welding program is in compliance with the following standards:

  • 10CFR50 Appendix B/ NQA-1
  • 10CFR Part 21
  • AWS D1.1 and D1.6

Additionally, we can weld to a variety of processes and alloy requirements in order to meet our customers’ needs. Reach out for a quote and we will work with you to supply your welding needs.

We specialize in both small assemblies and large fabrication jobs, with a 10 ton lift capacity.

With careful oversight from our quality assurance system, our qualified welders and weld procedures are prepared to meet the needs of a variety of industries.

“Thanks for being a partner for many years… Colonial has provided and advised us of any stub end needs for welding fittings.”

“Great company and great people.”

“We appreciate the relationship we have with Colonial.”

“You have always been very helpful and timely with your responses.”

“Great company and super people. Been doing business with Colonial Machine for over 40 years. Very knowledgeable.”

“Overall the customer service is very good.”

“It is a pleasure to do business with Colonial Machine.”

“Colonial Machine is a preferred partner for us as they are a great company to work with.”

“I have been working with Colonial Machine for the past 13 years and they are a very knowledgeable machine shop that can produce quality parts.”

“Honestly one of the best companies that I’ve dealt with in my 44 years in the business.”

“Colonial is one of our favorite vendors!”

“Customer service responds promptly and very courteous to work with.”