2 Ways 2 Save

  Tri-Boro Trailer has been a top provider of office trailer and mobile storage solutions to the construction industry since 1964. We handle all types of jobs including residential, commercial, industrial, highway, and remodeling projects.


What Portable Toilet Does Your Event Need?

When it comes to planning a large event, making sure you have adequate restroom facilities is essential. Planning a successful wedding, concert, fair, or large event is not an easy task. Hiring the right portable restroom company to help you handle the needs of your guests can make a drastic difference in the overall satisfaction… Read more »


Infographic: Benefits of Porta John Rentals for Contractors

More than just a convenience, on-site porta johns are an investment that results in measurable financial savings for construction managers. While porta johns might not be the first item contractors think of when plotting out the logistics of a construction site, on-site sanitation is a monetary, health, and site preservation concern for property developers. Here… Read more »


Get to Know Mr. John- Interview with Carmen Calabrese

What is your favorite cereal? I have two favorites actually, Cocoa Krispy’s and Quaker Old Fashion Oats, the hot stuff!   Mountain hideaway or beach house? Why? Beach House, nice constant ocean breeze, constant warm temps and always access to fishing, so that I will never starve of course. 


Welcome to the New mrjohnpit.com!

Mr. John is proud to announce the launch of the new and improved mrjohnpit.com. The new site combines a sharp design and easy navigation, with updated information and content. We will continue to add new features to make mrjohnpit.com a valuable resource for our partners, customers, and employees.


Elite 8

The Elite 8 is our newest high end luxury restroom trailer option. With an elegant finish and contemporary design, it is a perfect product for weddings, private parties, and upscale events. As our smallest restroom trailer option, the Elite 8 is easy to deliver and install at a variety of location making it perfect for… Read more »


Hand Sanitizer Service

As a market leader with a commitment to our brand ideals, and those of our customers, Mr. John now includes hand sanitizer as part of our standard service. We have been providing special event and single day rentals with hand sanitizer for the last two decades, and feel it’s a basic human right for all… Read more »


M.Z. Andy Gump Award 2011

This year’s recipient of the M.Z. Andy Gump Award was our very own Michael McCarthy! Michael was presented with this award by Barry Gump and his daughter Nancy Gump, at the 2011 Portable Sanitation Association International Convention and Trade Show in San Antonio, Texas. The M.Z. Andy Gump Award is presented and sponsored by Andy… Read more »