ROC #350729
(928) 910-3805
Granite Mountain MetalWorks
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ASME / AWS Certified

Full-Service Welding & Metal Fabrication

We deliver certified structural welding, custom architectural metals, and functional art across the American Southwest. Every project is backed by modern building science, thousands of inspected welds, and a problem-solving approach that treats your timeline and your budget as part of the job.

Inquire Now(928) 910-3805
Licensed, Bonded & Insured / ROC #350729 / Prescott, AZ
Trusted by industry leaders, contractors, and builders
DN Tank
Fann Contracting
Granite Basin Engineering
NextEra Energy

Our Services

Certified welder placing inspected welds on seismic rebar for a City of Prescott water reservoir

Certified Welding

Code-compliant welds that pass inspection the first time

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Engineered steel moment frame fabricated and installed in a wood-framed home in North Phoenix

Structural Fab

Engineered steel connections built to AISC standards

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Custom welded steel bracket fabricated to fit a timber-framed log cabin in Prescott

Custom Fabrication

One-off parts and production runs built to spec

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3D laser scan of an existing structure with the modeled steel patio addition overlaid for precise fit
Precision Meets Innovation

3D Scanning & CAD Design

We scan existing structures and environments in full 3D, then model precise CAD designs and fabrication plans directly from the scan data. This means exact-fit components, reduced field time, and the ability to show you a complete digital model before we cut a single piece of steel.

Architectural Metals

Gates, railings, and staircases designed to match your space

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Equipment Repair

Mobile repairs that get your equipment running again

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Functional Art

Custom metalwork where engineering meets design

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3D-modeled steel building frame rendered on an Arizona desert site, showing columns, rafters, and clear-span structure
New Service

Steel Buildings

Pre-engineered and custom steel buildings designed, fabricated, and erected in Arizona. Shops, barns, hangars, warehouses, riding arenas, and commercial structures. From clear-span gable frames to multi-bay column systems, engineered for local snow, wind, and seismic loads.

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We Come to You

Mobile Fabrication & Repair

Fully equipped for onsite work, from the Quad Cities to the Verde Valley, Phoenix, and beyond. When your equipment goes down or your project needs field welding, we bring the shop to you. Same certifications, same quality, wherever the job is.

Why Builders and Contractors Choose Us

Certified & Compliant

ASME and AWS compliant with thousands of inspected welds. Close working relationships with certified weld inspectors ensure every job exceeds code requirements.

Modern Building Science

We bring modern building science and procedure-based methods from structural welding to every project, ensuring precision and lasting quality.

Customer-First Approach

We are a service-based company focused on customer relationships, making sure our customers are satisfied with every aspect of the product.

Mobile Capabilities

Equipped with mobile repair capabilities for prompt onsite assistance. We come to you to get your equipment back up and running.

Solution Provider

We approach every task with a problem-solving mindset. From custom fabrications to structural repairs, we develop tailored solutions for your specific goals.

Licensed & Insured

Fully licensed (ROC #350729), bonded, and insured. You can trust that your project is protected and in professional hands from start to finish.

Featured Projects

Moment Frame Structural Steel - Carefree Highway, North Phoenix
Structural Fabrication

Moment Frame Structural Steel - Carefree Highway, North Phoenix

Engineered steel moment frame for a custom home along Carefree Highway in North Phoenix. Field-welded full-strength connections deliver a wide-open floor plan in a wood-framed structure where engineering required steel for shear resistance.

City of Prescott Water Reservoirs
Certified Welding

City of Prescott Water Reservoirs

Certified welding on precast concrete reservoir panels for the City of Prescott. Over 8,000 weld connections in weldable seismic rebar reinforcing two municipal water tanks.

Cantilevered Patio Addition - Desert Mountain, Scottsdale
Structural Fabrication

Cantilevered Patio Addition - Desert Mountain, Scottsdale

Cantilevered structural steel patio addition for a private residence in Desert Mountain, North Scottsdale. Designed with 3D laser scanning and modeling for a precise layout.

Custom Timber Frame Hardware - Copper Basin, Prescott
Custom Fabrication

Custom Timber Frame Hardware - Copper Basin, Prescott

Custom welded hardware and brackets fabricated to fit a unique timber-framed log cabin and deck in Copper Basin, Prescott. One-off weldments designed around the structure to make complex timber framing possible.

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Client Reviews

5.0on Google

Maintaining a perfect rating across every project we deliver.

“We had Sean come over to my job and fabricate some railing and gate match existing. He did an outstanding job of matching design. Would highly recommend him.”

S
Steve Sturdy
Google Review

“We needed a certified structural welder for our custom home project. Sean responded right away and was able to work directly with our framers and timeline to keep the project moving with no interruptions. Very professional, would definitely recommend and will definitely be using Sean and his company again.”

N
Nathan Green
Google Review

“Sean did an amazing and professional job. We had expanded our deck requiring new metal railings for it along with a metal gate with a Native American thunderbird on it. But the challenge was that he had to match the existing railing that was fabricated over 20 years ago and create some artwork panels from renderings. His challenge was to make it look like it was all made at the same time. Well, it came out amazing, even to color matching the paint on the railings!”

J
Jose Sanchez
Google Review

“Sean was amazing and soooo dedicated to our project! It was a huge project in the middle of summer and he was phenomenal! I will never ever use anyone but him! To all the big companies out there Sean has the skill and knowledge for your projects!”

R
Ramona Cretu
Google Review

“Sean is a very skilled welder with excellent customer service. He goes to great lengths to ensure the customer is happy with his work. He's meticulous, precise, knowledgeable, and friendly.”

J
Josh
Google Review

“Complex welding fabrication was a breeze for Sean. Addressed my needs for our RV modification immediately, done in 2 days. Could not be happier!”

R
R. Danny Berg
Google Review

“Sean is not only one of the hardest workers I know. He also is extremely knowledgeable in his profession, and couldn't recommend him enough to anyone I know.”

C
Caleb Diemert
Google Review

“Sean is fantastic! He is very knowledgeable and does great workmanship. I highly recommend him.”

C
Creo Builder
Google Review

“Professional, dependable, problem solver. First class welding. Stands behind his work. Highly recommended!”

M
Mike M.
Yelp Review

Let's Build Something Extraordinary

Whether you need structural steel fabrication, custom architectural metals, equipment repair, or a one-of-a-kind functional art piece, we're ready to bring your vision to life. Tell us about your project today.

Inquire NowCall (928) 910-3805

We respond to all inquiries within 24 hours.