Heavy-Duty Storage Upgrades for Work & Utility Trailers in Irwindale, California

Under-mount toolbox & cone holder installation

We install heavy-duty under-mount toolboxes, chain boxes, and cone holders with secure mounting so your storage holds up to real job-site use.

Related services

Need custom brackets or welding for mounts? See Welding & Fabrication. For additional trailer fixes, visit Trailer Repair. To get a quote, use Contact.

A&R One Stop Shop provides professional installation of 48” under-mount toolboxes and cone holders for all types of work trailers. Whether you need more secure storage, better organization, or safer access to traffic cones, we install everything clean, reinforced, and built for long-term use on the job.

48” Under-Mount Toolbox Installation

We install heavy-duty under-mount toolboxes that provide:

  • Secure lockable storage
  • Weather-resistant protection
  • Space-saving under-frame mounting
  • Clean, professional organization for tools & gear
  • Reinforced brackets for rough job-site conditions

Our installations are custom-fit to your trailer frame for maximum strength and accessibility.

What’s Included in a Toolbox Install

  • Custom mounting brackets
  • Precision cutting and drilling
  • Reinforced steel plate installation
  • Rust protection and sealing
  • Clean, secure final fitment

No rattling, no loose mounts — we build it solid.

Traffic Cone Holder Installation

We install cone holders designed for:

  • Quick and easy access on job sites
  • Secure upright storage of multiple cones
  • Durable welded steel construction
  • Mounting to utility, cable, construction, and work trailers

These holders keep your cones organized, accessible, and safely stored during transport.

Why Add a Cone Holder?

  • Improves job-site efficiency
  • Reduces clutter and loose equipment
  • Better safety compliance
  • Professional and organized trailer setup

Perfect for crews working in traffic, construction zones, or utility environments.

Custom Fabrication & Reinforcement

A&R One Stop Shop handles all fabrication in-house:

  • Cutting, welding, & mounting
  • Frame reinforcement when needed
  • Weatherproof hardware installation
  • Clean routing and alignment

Everything is installed to withstand daily use, vibration, and heavy-duty environments.

Compatible With All Trailer Types

We install toolboxes and cone holders on:

  • Utility trailers
  • Equipment trailers
  • Work trailers
  • Construction trailers
  • Cable trailers
  • Enclosed trailers

If it’s a trailer, we can mount it.

Serving Irwindale & Nearby Areas

We provide installations for customers in:

  • Irwindale
  • San Gabriel Valley
  • Azusa
  • El Monte
  • Duarte
  • West Covina
  • Covina
  • Baldwin Park
  • Los Angeles County

Why Choose A&R One Stop Shop

  • Skilled welding & fabrication
  • Heavy-duty custom mounting
  • Clean and professional installs
  • Fair pricing
  • Fast turnaround

Get a Storage Upgrade Quote

Need a 48” under-mount toolbox or cone holder installed on your trailer?
A&R One Stop Shop delivers strong, clean, and professional installations built to last.

Call today for a quote or to schedule your installation.

Need custom mounts, welding, or additional trailer upgrades? Check Welding & Fabrication and Trailer Repair. For pricing/availability, contact us.