G&A Precision Systems

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Inland Empire · CA

Ontario

CA · Inland Empire

Structural and pipe fabrication for Ontario's logistics hubs, manufacturers, and airport-area industrial parks.

(909) 556-7676
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Warehouse and distribution center steel
Fire and process piping fabrication
Equipment frames and machinery bases
Field welding on active facilities

Ontario's industrial parks and distribution centers around the airport and the I-10/I-15 interchange are a core part of our service area. We fabricate mezzanine and platform steel, conveyor supports, dock equipment repairs, and pipe for facility systems.

Manufacturers in Ontario also bring us production equipment work: machinery bases, guards, custom frames, and the repairs that keep a line running.

Twenty-five minutes down the I-10 from the shop, Ontario clients get shop-fabricated work delivered quickly and field crews without a long mobilization.

Areas We Serve in Ontario

Rancho Cucamonga
Chino
Upland

Planning a Project in Ontario?

Get a free, no-pressure estimate from G&A Precision Systems — and 15% referral discount.

(909) 556-7676

Have a fabrication job coming up?

Send the drawings and get an itemized quote from a shop with 25 years behind the hood.

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G&A Precision Systems

G&A Precision Systems Inc. is a Colton, CA welding and fabrication shop building pipe spools, structural steel, and process skids for industrial clients across Southern California. Carbon, stainless, and alloy work in the shop or in the field, backed by 25 years at the torch.

15% off when you refer a new customer

Contact

Serving the Inland Empire, Los Angeles, Orange County & San Diego
English · Español

Hours

  • Monday – Friday
  • Saturday – Sunday: Closed
  • 6:00 AM – 4:30 PM

Licensed & Insured

© 2026 G&A Precision Systems Inc.. All rights reserved.

Welding & Fabrication · Colton, CA