6176 University Ave, San Diego, CA 92115 · Licensed & Insured Call us for a quote: (619) 571-5733

Licensed Welding Contractor · San Diego, CA

Every application of welding for homes and businesses across California & beyond, backed by 15+ years of experience and a 3-year, no-questions-asked warranty.

Free Onsite Estimates 3–5 Day Turnaround Mobile, We Come To You
5.0
Google Rated
15+
Years Of Experience
3YR
No-Questions Warranty
Licensed & Insured

Who We Are

San Diego's Trusted Welding & Fabrication Experts.

Fusion Welding & Fabrication, Inc. is a licensed, insured welding contractor serving residential and commercial projects across California and beyond. We work ferrous and nonferrous metals in every welding application, gates, fences, railings, staircases, structural steel, ornamental metal work, sheet metal and pipe. Professional workmanship and honest pricing have earned us repeat customers one project at a time; this isn't a race, it's a marathon, and we're in it to win it.

  • Fully licensed & insured welding contractor
  • 15+ years of hands-on welding experience across every type of project
  • Every install backed by a 3-year, no-questions-asked warranty

What We Do

Every Application Of Welding. One Call.

No matter the metal or the project, you decide what needs done and we get it done, in the shop or at your site. Pick a service to see how we handle it.

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Welder fabricating with sparks flying

Custom Gates & Fences

Driveway gates, security fencing and custom concepts, CAD & shop drawings included, designed, fabricated and installed.

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Welder working on a metal piece

Railings, Stairs & Ornamental

Interior and exterior railings, staircases and ornamental metal work, finished clean and up to code.

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Structural welding in progress

Structural & Sheet Metal

Structural steel and sheet metal for residential and commercial builds, welded to spec, documented and safe.

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Welder working on metal pipe

Pipe Welding

Pipe welding in ferrous and nonferrous metals, full-fusion passes, clean finishing, sealed right the first time.

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Welder at work with sparks

Marine & Aluminum

Boats, trailers and aluminum repair, old hulls brought back with real shipyard discipline.

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Onsite welding in progress

Mobile Welding

Fully mobile service, we bring the rig to your home, jobsite, dock or yard, California and beyond.

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+Powder Coating +Galvanized Dipping +Free Onsite Estimates +3–5 Day Turnaround +Residential & Commercial

Testimonials

What Our Customers Say

Rated 5.0 on Google by the homeowners, project managers and boat owners we've built for.

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"Fast, affordable and reliable, the team finished the project on time."

MB
Melissa B.Project Manager

"I asked for a custom fence and they were able to bring my concept fence to life. Great work!"

MD
Mike D.Homeowner

"Professional! Every weld was correct and up to code. Easy to communicate with and work with."

PT
Paige T.Commercial Real Estate

FAQ

Frequently Asked Questions

Are you insured and licensed?

Yes, fully licensed and insured. Over 15 years of welding experience shaped our standard for workmanship, safety and quality assurance.

Are you AWS certified?

Yes, we are AWS certified.

Do you have a weld procedure?

Yes, we have aluminum and steel.

Do you offer financing or payment options?

Yes, we accept many payment options including check, credit cards, Venmo and Zelle. Ask about financing when you book your estimate.

How fast can you install?

Most projects are completed on a 3–5 day turnaround, and every estimate is free and onsite.

Do you offer powder coating and galvanized dipping?

Yes, we professionally install both, so your fabrication leaves with the finish and corrosion protection it needs.

Free Onsite Estimate

Get A Quote From Us Today

Tell us what needs built or fixed. We'll come to you, price it honestly, and stand behind the work for 3 years.

Get In Touch With Us

Home / Services

Our Services

From custom fabrication to commercial work, you decide what needs done, and we get it done. Every service below is mobile: we come to you, California and beyond.

Welder fabricating with sparks flying

Custom Gates & Fences

Driveway gates, security fencing and one-of-a-kind concepts, fabricated and installed.

View Service →
Welder working on a metal piece

Railings, Stairs & Ornamental

Interior and exterior railings, staircases and ornamental metal work, up to code.

View Service →
Structural welding in progress

Structural & Sheet Metal

Structural steel and sheet metal for residential and commercial builds.

View Service →
Welder working on metal pipe

Pipe Welding

Ferrous and nonferrous pipe work, steel, stainless and aluminum.

View Service →
Welder at work with sparks

Marine & Aluminum

Boat, trailer and aluminum repair backed by shipyard experience.

View Service →
Onsite welding in progress

Mobile Welding

The rig comes to your home, jobsite, dock or yard, California and beyond.

View Service →
+Powder Coating & Galvanized Dipping +Free Onsite Estimates +3–5 Day Turnaround

Home / Services / Custom Gates & Fences

Custom Gates & Fences

Security, curb appeal and craftsmanship, driveway gates, pedestrian gates and fencing designed around your property and built to outlast it.

Your Concept, Brought To Life

Bring us a sketch, a photo or just an idea, we design, fabricate and install gates and fences that match it. We provide CAD and shop drawings, so you see the exact design before we cut steel. From clean modern horizontal slat gates to classic wrought-iron looks, we work steel, aluminum and everything between, then finish it with optional powder coating or galvanized dipping so it holds up to San Diego sun and coastal air.

What We Handle

  • Driveway & pedestrian gates, swing and sliding
  • Security fencing, pool fencing & fence toppers on block walls
  • ADA-accessible gate designs with slow-close hardware
  • Repairs, re-hangs and hardware upgrades on existing gates

One recent build: a custom ADA-accessible gate for a local American Legion post, inward-opening for mobility-impaired members with a slow-closing mechanism, designed around how the members actually use it. That's the level of thought every gate gets.

Home / Services / Railings, Stairs & Ornamental

Railings, Stairs & Ornamental

Interior and exterior railings, staircases and ornamental metal work, safe, code-compliant and finished like furniture.

Where Safety Meets Craft

A railing has two jobs: hold weight without question, and look like it belongs in your space. We fabricate and install stair railings, balcony and deck rails, handrails and ornamental pieces in every style, modern cable-and-steel, classic scrollwork, or something only you've imagined. Every install is plumb, solid and up to code.

What We Handle

  • Interior & exterior stair railings and handrails
  • Balcony, deck & guard rails for homes and commercial buildings
  • Steel staircases, straight, switchback and custom
  • Ornamental & decorative metal work of every kind

Home / Services / Structural & Sheet Metal

Structural & Sheet Metal

Load-bearing steel and precision sheet metal for residential and commercial projects, welded to spec with quality-assurance discipline on every pass.

Welds You Can Build On

With 15+ years across every kind of welding, our standard for penetration, fit-up and inspection was set on jobs far less forgiving than a backyard. We bring that same discipline to beams, posts, brackets, frames and sheet metal fabrication for contractors, property managers and homeowners.

What We Handle

  • Structural steel, beams, columns, moment frames & brackets
  • Commercial build-outs & tenant improvements
  • Sheet metal fabrication, enclosures, panels, guards & covers
  • Ferrous & nonferrous metals, all welding applications

Home / Services / Pipe Welding

Pipe Welding

Ferrous and nonferrous pipe work in every position, steel, stainless and aluminum, sealed right the first time.

Pipe Is Where Precision Lives

Pipe welding leaves no room for "close enough", a weld either seals and holds pressure, or it doesn't. Fifteen-plus years of pipe work across homes, businesses and boats carry into every job: proper prep, correct filler for the alloy, full-fusion passes and clean finishing.

What We Handle

  • Steel, stainless & aluminum pipe, all common schedules
  • Repairs, reroutes, brackets & supports
  • Handrail & structural pipe fabrication
  • Onsite pipe work via our fully mobile rig

Home / Services / Marine & Aluminum

Marine & Aluminum Welding

Boats, trailers and aluminum structures repaired with real shipyard discipline. Old aluminum hulls are a challenge of their own, and they're our specialty.

Shipyard Standards For Your Boat

Aluminum boat repair punishes shortcuts: contaminated metal, thin corroded sheets and stress points that fail again if the fix isn't planned right. We establish a clear, concise repair plan first, then execute it with the prep and filler discipline marine work demands. Recent work includes transom replacement, chine and centerline welding where hull sheets meet, and axle, leaf-spring and fender retrofits on trailers.

What We Handle

  • Aluminum boat repair, transoms, chines, centerlines & seams
  • Boat trailer repair & retrofit, axles, brackets, leaf springs, fenders
  • Custom marine fabrication, rails, mounts, tanks & fittings
  • Dockside & yard service via our mobile rig

Home / Services / Mobile Welding

Mobile Welding

Fully mobile service, built for convenience, the rig comes to your home, jobsite, dock or yard, no matter how far.

The Shop That Comes To You

Some jobs can't come to a shop, a gate hanging off its hinge, a broken trailer on your property, structural steel already standing. Fusion is a fully mobile operation: we roll a complete welding rig to your location, California and beyond, assess onsite, and turn most jobs around in 3–5 days.

What We Handle

  • Onsite repairs, gates, fences, railings, equipment & trailers
  • Jobsite welding support for contractors
  • Dockside marine & trailer work
  • Free onsite estimates, typical 3–5 day turnaround

Home / Testimonials

Client Testimonials

Rated 5.0 on Google and trusted across Yelp, HomeAdvisor and Angi, here's what homeowners, contractors and businesses say about working with Fusion.

After 41 years as a San Diego contractor, I know the difference. Professional and polite on every visit, uncompromising on workmanship and materials, and instead of an upsell, Fabio offered me an honest alternative. Customer service was 1st class.
Fred L.Retired Contractor · HomeAdvisor
Fusion built a custom ADA-accessible gate for our American Legion post, inward-opening with a slow-close mechanism, designed around how our mobility-impaired members actually use it.
Google ReviewAmerican Legion Post Project
They gave our old aluminum boat a second life, transom replaced, chine and centerline welded where the hull sheets meet, and the trailer refit with a new axle, leaf springs and fenders.
Google ReviewAluminum Boat Repair
Brought them a technical aluminum job and the result made the decision easy, they'll be getting all my aluminum welding from here on out.
Yelp ReviewerAluminum Welding
Professional! Every weld was correct and up to code. Easy to communicate with and work with.
Paige T.Commercial Real Estate · Website
01 / 05

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Pick a time that works and we'll take it from there, or call and we'll get you on the schedule. Every estimate is free and onsite.

Fusion Welding, Availability

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Business Hours

Monday5:00a – 7:00p
Tuesday5:00a – 7:00p
Wednesday5:00a – 7:00p
Thursday5:00a – 7:00p
Friday5:00a – 7:00p
Saturday5:00a – 7:00p
SundayClosed

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Mobile service, California & beyond

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