Professional Trailer Towing & Electrical Upgrades in Irwindale, California

A&R One Stop Shop provides complete towing and electrical upgrades for all types of trailers, including lunette eye installation, 7-way wiring setup, junction box upgrades, and battery box installation. Whether you’re upgrading your hauling capability or fixing worn-out towing equipment, we deliver clean, professional work built for heavy-duty use.

Trailer wiring & hardware installs (done clean)

We install lunette eyes, 7-way wiring, junction boxes, and battery boxes with clean routing and proper protection so your electrical setup stays reliable.

Related services

Need troubleshooting or other repairs? Visit Trailer Repair. For brackets/mounts and metal work, see Welding & Fabrication. To schedule, use Contact.

Heavy-Duty Lunette Eye Installation

A properly installed lunette eye gives your trailer:

  • Stronger, more secure towing connection
  • Better compatibility with pintle hitches
  • Increased durability for off-road & job-site use
  • Improved stability under heavy loads

We cut, weld, align, and reinforce the front end so your lunette eye is perfectly centered and ready for real-world use.

Clean & Professional 7-Way Wiring Installation

We install and upgrade 7-way connectors for:

  • Trailers with electric brakes
  • Trailers requiring auxiliary power
  • Trailers running multiple lighting circuits

Our wiring jobs are done clean, protected, and organized. We don’t do sloppy wiring — everything is routed properly, secured, and weather-sealed.

Junction Box Installation & Upgrades

A junction box keeps your electrical system clean, organized, and easy to service. Our installations include:

  • Clean wire management
  • Weatherproof connectors
  • Labeled terminals
  • Secure mounting to the trailer frame
  • Integration with your 7-way plug

This reduces electrical failures and makes future wiring repairs simple.

Battery Box Installation

Need onboard power for hydraulics, winches, lighting, or accessories? We install:

  • Heavy-duty battery boxes
  • Vented or sealed enclosures
  • Clean wiring to power systems
  • Reinforced mounting brackets
  • Weatherproof protection

We make sure your battery box is safe, secure, and built for the elements.

All Fabrication & Wiring Done In-House

Your installation includes:

  • Professional cutting, welding & fabrication
  • Wire routing, sealing & protection
  • Heavy-duty mounting hardware
  • Electrical testing & verification
  • Final safety inspection

Everything is built to last — no shortcuts.

Compatible With All Trailer Types

We service:

  • Equipment trailers
  • Utility trailers
  • Cable trailers
  • Dump trailers
  • Work trailers
  • Construction trailers

If it tows or powers equipment, we can upgrade it.

Serving Irwindale & Surrounding Areas

We provide towing & wiring upgrades for customers in:

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

Why Choose A&R One Stop Shop

  • Clean electrical work
  • Precision welding
  • Heavy-duty fabrication
  • Fast turnaround
  • Fair pricing
  • Built for hard, daily use

Get a Quote for Your Installation

Need a lunette eye welded in? Upgrading your trailer wiring? Adding a battery box or junction box?
A&R One Stop Shop delivers professional, reliable results every time.

Call today to get a fast quote or schedule your installation.

Need wiring, lighting, or structural welding on your trailer? Visit Trailer Repair and Welding & Fabrication. To get scheduled, contact us.