Sean Byrnes Welding
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Sean Byrnes Welding is a full service custom metal working, fabrication and welding services company located in the Lakes Region and White Mountains of NH. Sean Byrnes Welding provides design, engineering and manufacturing of industrial and architectural details and related metalwork services. We also offer portable services and marine construction.

We are expert fabricators of iron and steel components, architectural elements, stairway systems and railings, gates, fencing, docks, custom headers and hinge brackets, winch posts, boathouse gates underwater dive and salvage, and any residential and commercial metal structures. Our portable services include Aluminum Dock and Pontoon Boat repair, heavy equipment, and structural steel and pipe welding.
Services
Sean has been a welder/fabricator since 1983, doing work ranging from structural steel and pipe welding to precision fabrication for the furnace/boiler/energy as well as military sectors. He decided it was time to take his talent on the road in 2003, and Sean Byrnes Welding began offering portable welding and machine work in their shop.
Custom Fabricated Handrails - Iron & Aluminum, interior and exterior handrails. We can design your handrails and fabricate them in house or on location. We offer a full catalog of balluster, newell post and handrail profile options. We can apply a rough finish, sandblasted and painted, or powercoated options are available.
Reviews (4)
Don Stoppe
Don Stoppe
May 28, 2021
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Positive: Professionalism, Quality, Responsiveness, Value
Sean had done many welding jobs for both me and for our snowmobile club. He has all the right equipment for mobile emergencies or in house repairs. All of his work is professional and top notch.
Corbett Tulip
Corbett Tulip
Jan 18, 2021
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Had a mini excavator bucket that needed a bit of fabrication, did a great job in a timely manner.
Nh Guy
Nh Guy
Sep 29, 2020
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Positive: Professionalism, Quality, Responsiveness, Value
Great welder, a golden arm! I think he does more industrial projects but I asked him if he could weld some brackets for my lawn mower. Not a problem for him. He is professional, thorough, and quick. His welds are beautiful!
Diane Ramsdell
Diane Ramsdell
Nov 28, 2016
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Sean is an artist. He created railings for my steep granite stairs that are so creative and functional. I recommend him highly