Site Welding Services is a premier steel fabrication and erection contractor based in Woodinville, Washington. We specialize in structural and architectural projects throughout Washington state.

We set ourselves apart from our competitors by being both a precision fabricator and an experienced jobsite installer of steelwork on both commercial and residential projects.

And our customer service and attention to detail is second to none.

Site Welding Services was started in 1995 by owner John (Phil) Hanlon.  Site Welding Services occupies a one-half acre site that contains a production / storage yard, loading & unloading areas, a 12,000 sq. ft. fabrication shop and a 2000 sq. ft. administration building.



We can help you

The definition of success in the construction industry is how problems are solved.  Our history of problem solving is emphasized by the number of times we are called in to “fix” issues that have happened on a job that is experiencing problems.  That experience has given us an pre-installation and fabrication approach that allows us to solve the problems before they happen.

  • Project Planning
  • Feasibility Assessment & Value Engineering
  • Needs Analysis
  • Expert estimating and costing