(800) 788-2502 [email protected]

Price. Product. Service.

Request A Quote or Call (800) 788-2502 to get started

What sets us apart from the competition?

We have longevity with some of the most experienced staff in the industry. Our experience, single location, efficiency and low overhead allows us to provide the best pricing in every corner of our state. Cost efficient leasing, good condition used buildings for sale and custom built to order new buildings. No commissioned sales staff or hard selling at CMS, clients enjoy work directly with the decision making leadership delivering exceptional service.

Over 35 Years of experience

CMS began servicing SOUTHERN CALIFORNIA in 1981 with service, rentals and sales of new and used office trailers.


More experience per capita, the CMS staff all have years of industry and product knowledge. We know that you need an expert you can talk with who can answer your questions.


CMS provides more buildings across the California marketplace than most companies our size. We are based and owned right here in California not by some far off corporation in another State or Country. Our low overhead savings are passed on to every client for needs big and small.


Mobile Storage

CMS is an office trailer and modular building supplier first and always.  We will lease storage containers and small storage rooms to our existing lease clients as a service.

Mobile Offices

The CMS mobile offices also known as office trailers are available to lease or purchase.  We manufacture and update these regularly keeping our standards high...


The CMS complex also known as a modular building will be a factory built structure consisting of two or more sections that will be married together...


CMS primarily sells classrooms only leasing on occasion.  Most classrooms are for long term or permanent needs where a purchase is the best value for a client.

Custom Construction

If you are looking for a custom office trailer or modular building you came to the right place.  We have the ability to manufacture and remanufacture...

Product Accessories


CMS provides engineered metal ADA ramps to not only meet code requirements but difficult site restrictions such as space and ground conditions.  


Do you need stairs with your office trailer or modular building?  In most cases yes. When leasing a mobile office you are offered no cost use of access stairs for each door.


CMS manufactures steel, aluminum and galvanized deck, stairs and ADA ramps.  We treat this very much like our modular buildings fabricating...

What they say

Company News

A mobile office is a great solution if for a company in need of temporary office space

A mobile office can be a great solution if for a company in need of temporary office space that may need to be moved to different locations. A mobile…


Commercial Mobile Offices

For anyone running a commercial business, time and money are likely tight. When a business outgrows its current location, more space will be sought…


In need of extra space?

For any type of business in need of extra space, a viable solution that is also extremely flexible and affordable is locating mobile offices for sale.…


Monday - Saturday 9:Am - 6:Pm / Sunday: Closed