Aluminum structures and frames
Frames, brackets, platforms, racks, ramps and railings fabricated in aluminum, or repaired where they have cracked or bent.
Railings, ramps and stairs
Aluminum Welding in Calgary
Aluminum Welding Services
Aluminum welding requires specialized skill, precision, and the right equipment to ensure strong, clean, and durable results. At Fabrication Pros, we provide expert aluminum welding services for projects of all sizes — from structural fabrication to custom repairs and mobile welding.
Lightweight, strong and corrosion-resistant
Why Aluminum Welding Is Unique
Aluminum is lightweight, corrosion-resistant, and widely used in construction, manufacturing, and transportation. However, it’s also more challenging to weld than steel due to its high thermal conductivity and oxide layer. Successful aluminum welding demands advanced techniques, clean preparation, and experienced welders who understand the material’s behavior.
In practice that means heat spreads away from the joint quickly, and the thin oxide skin on the surface melts at a far higher temperature than the aluminum underneath. Aluminum also gives little colour warning before it melts. Settings and habits that work on steel do not carry over, which is why we treat aluminum as its own trade inside the shop.
- Clean, sound welds on thin sheet and thick plate
- Repairs on cracked or damaged aluminum parts
- New aluminum fabrication built to your drawing
What we weld
Aluminum Welding Applications
From structural fabrication to custom repairs, these are the aluminum jobs we see most in Calgary and surrounding areas.
Pressure piping and tanks
Aluminum tanks and piping welded with fully fused, leak-free joints. Cracked and leaking aluminum fuel tanks on trucks and equipment are a common repair.
Aluminum fuel tank repairVehicle and trailer repairs
Aluminum trailer frames, ramps, decks and truck parts repaired and reinforced, so they can go back to work.
Trailer welding and repairMarine and equipment components
Boat and marine parts, brackets and mounts, plus aluminum components on machinery and equipment.
Equipment welding and repairCustom fabrication and prototyping
One-off parts, custom brackets and prototypes made from your drawing, a sample part or your measurements.
Send us your projectNot sure if it can be welded?
Send a photo of the part or call us, and we will let you know whether a repair makes sense.
(403) 879-3443Our Process
We use advanced TIG (GTAW) and MIG (GMAW) welding methods to achieve precise, high-quality welds. Every joint is cleaned, prepped, and inspected to ensure maximum strength and appearance. Whether it’s a new fabrication, a repair, or an on-site weld, our team delivers results that meet or exceed industry standards.
Assess the Part
We check the alloy, thickness and condition of the part, or the cracks and damage, and decide whether to repair, reinforce or build new.
Clean and Prep
Oil, paint and corrosion come off first, then the oxide layer is removed with a dedicated stainless brush or grinding so the weld fuses properly.
TIG or MIG Weld
We choose TIG (GTAW) or MIG (GMAW) to suit the thickness, the joint and the finish you need.
Inspect and Finish
Every joint is checked for strength and appearance before the part goes back into service.
The right process for the job
TIG and MIG Aluminum Welding
Pick a tab to see how we approach each kind of aluminum work.
TIG Welding Aluminum
TIG welding gives the welder fine control of heat and filler metal, which suits thin aluminum sheet, tight corners, repairs on cracked parts and welds that will stay visible. On aluminum it is normally run on AC, where part of each cycle helps break up the surface oxide so the filler can fuse with clean metal.
New to the process? Read what TIG welding is or our complete GTAW guide.
MIG Welding Aluminum
MIG welding feeds aluminum wire continuously, so it lays down weld faster on thicker plate and long seams. Aluminum wire is soft, so a spool gun or push-pull gun is often used to feed it reliably.
The filler wire, commonly 4043 or 5356, is chosen for the base alloy and how the part will be used. See 5356 vs 4043 aluminum filler and our GMAW (MIG) guide.
In Our Shop or at Your Site
Parts that can travel are best welded in our Calgary shop, where cleaning, fit-up and conditions are easiest to control. When a trailer, tank or piece of equipment cannot be moved, our mobile welders come to you.
Outdoor aluminum welding needs shelter from wind so the shielding gas stays over the weld, and we set up for that on site. Learn more about mobile welding repair and portable welding services.
Fabrication Pros
Why Choose Us
- Certified aluminum welders
- State-of-the-art equipment
- Mobile and on-site welding options
- Fast turnaround and competitive pricing
At Fabrication Pros, we take pride in delivering aluminum welds that combine performance, durability, and visual quality. Contact us today for a free quote or to learn more about our aluminum welding capabilities in Calgary and surrounding areas.
Aluminum Welding FAQ
What welding processes do you use for aluminum?
We use TIG (GTAW) and MIG (GMAW) welding. TIG suits thin material, precise repairs and visible welds; MIG is faster on thicker plate and longer seams. Our TIG welding and GMAW welding guides explain both.
Why is aluminum harder to weld than steel?
Aluminum conducts heat away from the joint quickly and is covered by an oxide layer that has to be removed and broken up for the weld to fuse. It takes clean preparation and the right technique. We explain the details in why aluminum welding is different from steel.
Can you weld aluminum at my location?
Yes. We offer mobile and on-site welding options in Calgary and surrounding areas, for parts and equipment that cannot be brought to our shop. See mobile welding repair.
What aluminum parts do you work on?
Aluminum structures and frames, pressure piping and tanks, vehicle and trailer repairs, marine and equipment components, and custom fabrication and prototyping, for projects of all sizes.
Do you repair aluminum fuel tanks?
Yes. We repair aluminum diesel fuel tanks on heavy trucks, semi-trailers and construction equipment, including cracked seams, corrosion and pinhole leaks, and broken brackets. Details are on our aluminum diesel fuel tank repair page.
Which filler should be used, 4043 or 5356?
It depends on the base alloy and how the part is used. 4043 flows well and has a lower hot-cracking tendency on many 6xxx alloys, while 5356 gives higher weld strength and a closer colour match after anodizing. We choose the filler for each job; see 5356 vs 4043.
How do I get a quote?
Call (403) 879-3443 or use the form below for a free quote. Photos, drawings or measurements of the part help us quote faster.
Related Services
Aluminum work often goes hand in hand with these Fabrication Pros services.
Aluminum Fuel Tank Repair
Cracked, leaking and corroded aluminum diesel tanks on trucks and equipment.
Learn more
Mobile Welding Repair
Welding and metal repair brought to your job site, shop, yard or farm.
Learn more
Aluminum Welding Guides
Why Aluminum Welding Is Different From Steel
Heat, oxide and filler choices: what changes when you switch from steel to aluminum.
Read more
5356 vs. 4043 Aluminum Electrodes: What’s the Difference?
How the two most common aluminum fillers compare on strength, cracking and anodizing.
Read moreExpert Aluminum Diesel Fuel Tank Repair in Calgary, Alberta
What goes into a safe aluminum fuel tank repair on trucks and heavy equipment.
Read moreMore from the blog: benefits of TIG welding, straight vs reverse polarity, MIG welding tips, trailer frame and hitch repair.
Need Aluminum Welding in Calgary?
Tell us what you are working on. Call for a free quote, or send photos and measurements with the form below.
Call Now (403) 879-3443Request a Free Aluminum Welding Quote
Feel free to call with any questions that you may have.
- (403) 879-3443
- Mon – Fri: 8:00am – 5:00pm
- Calgary, Alberta
Contact us with any questions you may have.