Serving Ontario & Greater Los Angeles

Forge Your Vision Into Steel

From custom gates to structural repairs — expert welding craftsmanship built on integrity, precision, and decades of hands-on experience right here in Ontario, California.

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15+

Years Experience

Trusted welding expertise serving the Inland Empire community since 2009.

100%

Satisfaction Rate

Every project completed to the highest standard — on time and within budget.

Local

Ontario-Based

Proudly serving Ontario, Rancho Cucamonga, and the greater Inland Empire.

Same Day

Emergency Service

Urgent repair? We respond fast with reliable on-site welding solutions.

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What We Offer

Comprehensive Welding & Repair Services

From residential gate installations to industrial fabrication — we bring the skill, equipment, and dedication to every job, big or small.

Residential Welding

Custom gates, railings, fences, and decorative metalwork that enhance your home's security and curb appeal.

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Structural Repairs

Reinforce and restore structural steel components — beams, columns, supports, and load-bearing frameworks with certified welds.

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Commercial Fabrication

Custom metal fabrication for businesses — storefronts, signage, shelving, and industrial equipment tailored to your specifications.

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Metal Roofing & Siding

Installation and repair of metal roofing, siding, and weatherproofing systems for residential and commercial properties.

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Aluminum & Stainless Steel

Precision welding on aluminum, stainless steel, and exotic metals — from delicate finishes to heavy-duty applications.

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Emergency Repairs

Broken gate? Failed weld? We offer same-day emergency response for urgent structural and security repairs across the area.

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15+

Years of
Excellence

About Us

Craftsmanship Rooted in Hard Work and Honesty

Super Mario Welding was founded on a simple principle: deliver honest, high-quality metalwork at fair prices. Based right here in Ontario, California, we've spent over 15 years building a reputation earned one weld at a time.

Whether it's a homeowner needing a custom gate, a contractor calling for structural reinforcement, or a business requiring precision fabrication — we treat every project with the same level of care and attention. No shortcuts. No surprises. Just solid workmanship you can trust.

Licensed & Insured

Free Estimates

On-Site Service

Competitive Pricing

Let's Discuss Your Project

Our Work

Built to Last, Finished with Pride

Every weld tells a story of precision and dedication. Here's a glimpse of the work we've delivered across residential and commercial projects.

Custom Wrought Iron Gate

Residential — Ontario, CA

Structural Steel Repair

Commercial — Rancho Cucamonga

Stainless Steel Handrail

Residential — Fontana, CA

Decorative Metal Fencing

Residential — Chino, CA

Precision MIG Welding

Custom Fabrication — San Bernardino

Metal Roofing System

Commercial — Pomona, CA

Testimonials

What Our Clients Say

We let our work speak for itself — but don't just take our word for it.

"Super Mario Welding installed a beautiful custom gate at our home. The craftsmanship is outstanding — clean welds, perfect finish, and they finished ahead of schedule. Highly recommend."

M.R.

Maria R.

Ontario, CA

"We called them for an emergency structural repair on our commercial building. They came out the same day and had it done by afternoon. Professional, fast, and fairly priced — exactly what you want in a crisis."

J.T.

James T.

Rancho Cucamonga, CA

"I've used Super Mario Welding for multiple projects now — from a stainless steel railing to a custom patio cover frame. Every time, the quality is consistent and the communication is excellent. A true local gem."

D.L.

David L.

Chino Hills, CA

Start Your Project

Ready to Bring Your Metal Project to Life?

Whether it's a one-time repair or a full custom build, we're here to help. Reach out today for a free, no-obligation estimate — we'd love to hear about your project.

Call (909) 467-1797 Send a Message

Let's Talk About Your Project

Have a question or need a quote? Reach out by phone, email, or stop by our shop. We respond to all inquiries within one business day.

Phone

(909) 467-1797

Mon–Fri: 7AM–6PM | Sat: 8AM–2PM

Address

410 S Bon View Ave

Ontario, CA 91761-1907

Walk-ins welcome during business hours

info@supermariowelding.com

We reply within 1 business day

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