Purpose-Built for Office Trailers with Bathrooms
Engineered specifically for office trailers, the Mobile Water Box provides reliable fresh water, waste capacity, and pumping—all positioned outside your workspace.
The Mobile Water and Waste Box is a compact, insulated system that provides 270 gallons of fresh water and 330 gallons of waste capacity for office trailers—eliminating the need for bulky interior tanks, noisy pumps, and complex plumbing. Installed outside your trailer, it saves valuable space, operates quietly, and includes integrated freeze protection for reliable year-round performance. Ideal for single or multi-trailer setups, it offers a complete, professionally installed water and waste solution that keeps your site running efficiently in any season.
Without municipal water and sewer connections available (which they rarely are at construction sites), you’re forced to install systems inside the office trailer itself. This means cramming a freshwater tank somewhere inside your limited office space, adding a waste tank that requires monitoring and service access, installing a pump system that creates noise throughout the workday, running plumbing connections through your office environment, and covering everything with insulation and heat tape hoping it survives winter.
This interior approach creates an ongoing list of complications: valuable office space consumed by water management equipment, pump noise disrupting meetings and phone calls all day, freeze failures shutting down your bathroom and kitchen when temperatures drop, complicated servicing requiring access inside your office space, and a makeshift appearance that doesn’t reflect well on your operation.
We designed the Mobile Water and Waste Box specifically for office trailers with bathrooms and kitchens. The entire system—fresh water, waste tank, pump, everything—sits outside your trailer where it belongs. The insulated, heated enclosure protects against freezing while your office space remains completely dedicated to actual office use.
Engineered specifically for office trailers, the Mobile Water Box provides reliable fresh water, waste capacity, and pumping—all positioned outside your workspace.

Its insulated, heated enclosure prevents freezing, ensuring dependable operation even in the harshest winter conditions.
Installed outside your trailer, it frees up valuable interior space for desks, meetings, and work—not plumbing equipment.
With the pump located outdoors, the system eliminates noise disruptions, keeping your office environment quiet and focused.
Delivered, installed, and serviced by professionals, it connects seamlessly to your trailer and is maintained without disrupting operations.
Easily expanded across multiple trailers, it creates a coordinated, reliable water and waste solution for your entire site.

Ideal for construction site offices needing full water and restroom functionality without permanent connections. Perfect for temporary headquarters on major projects where professional, reliable facilities are essential. Supports remote office locations where traditional utilities aren’t feasible or cost-effective. Enhances sales offices at development sites, offering clients a comfortable, fully functional experience.

Built for cold-weather construction where freeze protection is critical for uninterrupted progress. Optimized for long-term job sites seeking fewer service calls and simplified logistics. Designed for remote locations without permanent water infrastructure. Provides temporary utility solutions that perform dependably during industrial renovations and shutdowns.

Supports disaster response operations needing fast, reliable water and waste systems. Trusted for government and military projects requiring proven, rugged solutions that meet strict operational standards. Delivers dependable event facilities with professional restroom capabilities for extended gatherings. Serves agricultural operations supporting seasonal workforce housing and temporary site needs.


The 270-gallon fresh water and 330-gallon waste capacity typically supports office trailer installations with one bathroom and kitchenette serving 10-20 people during standard business hours. Actual capacity varies based on specific usage patterns and fixture types.
| Consideration | Mobile Water Box (Exterior) | Traditional Interior Tanks |
|---|---|---|
| Office Space Impact | Zero—all equipment positioned outside | Significant—tanks and pumps consume valuable square footage |
| Noise During Work Hours | Quiet—pump operates outside office | Disruptive—pump noise with every use |
| Winter Freeze Protection | Engineered insulated/heated enclosure | Improvised heat tape and insulation often failing |
| Installation Complexity | Exterior connections in 3-4 hours | Interior installation requiring full day or more |
| Service Accessibility | Complete exterior access—no office disruption | Service requires entering office space |
| Professional Appearance | Clean exterior installation | Exposed plumbing and equipment inside office |
| System Reliability | Purpose-built components for reliable operation | Improvised solutions requiring constant attention |
| Service Efficiency | Single-stop waste pumping and water refilling | Complicated interior access for servicing |
The Clear Choice for Office Trailer Applications:
When your priority is maintaining a professional, functional office environment while ensuring reliable bathroom and kitchen facilities, exterior positioning with the Mobile Water Box delivers advantages that interior installations simply cannot match.

Flexible Arrangements:
Whether you need a Mobile Water Box for a 6-month project or a multi-year construction timeline, we structure rental terms matching your duration. For organizations regularly using office trailers across multiple projects, purchase options provide long-term value.
The Alternative Cost:
Consider what traditional interior installations actually cost: equipment and installation labor for interior tanks and pumps, ongoing heating costs and heat tape replacements, emergency repairs when freeze failures occur, lost productivity from pump noise disruptions, and the professional cost of clients seeing makeshift systems inside your office.
The Mobile Water Box eliminates all of these hidden costs while delivering superior performance and reliability.
Request your custom quote or call (844) 900-3190 to discuss pricing specific to your office trailer installation needs.
If you can’t find what you’re looking for, feel free to contact us.
The Mobile Water Box works with any office trailer that includes a bathroom, kitchenette, or both—the most common configuration for construction site offices. Whether your trailer has a full bathroom with toilet and sink, a half-bath, or bathroom plus kitchen facilities requiring running water, this system provides the complete water supply and waste management solution.
Standard office trailer plumbing connections interface directly with our system. We’ve installed Mobile Water Boxes serving everything from small single-office trailers for site supervisors to large multi-room office complexes serving entire project management teams.
If you’re placing an office trailer at a construction site where municipal water and sewer connections aren’t available (which describes most construction sites), the Mobile Water Box eliminates the need for complicated interior tank installations while providing reliable functionality.
Winter freeze protection was a primary design consideration because so many construction sites operate year-round including through cold months. The Mobile Water Box features complete insulation surrounding all components and an integrated heating system that maintains operational temperatures automatically.
Unlike traditional interior installations relying on heat tape (which frequently fails) or temporary insulation (which proves inadequate), our purpose-built system actively prevents freezing through engineered thermal protection. The heating activates when temperatures approach freezing, maintaining safe operating conditions for all water management components.
Construction sites using Mobile Water Boxes through harsh winter conditions consistently report zero freeze failures even during extended cold periods. Your office trailer bathroom and kitchen continue functioning reliably regardless of outdoor temperature—essential for maintaining normal operations during winter construction.
Service frequency depends on your office trailer usage patterns—primarily how many people use the bathroom and kitchen facilities and how frequently. Typical service intervals range from weekly to bi-weekly for standard office trailer installations.
The 270-gallon fresh water capacity and 330-gallon waste capacity provide substantial operating duration between service visits. For example, an office with 15 people using a bathroom and kitchenette during standard work hours typically requires weekly service comfortably without risk of running out of fresh water or experiencing waste capacity limits.
Service happens from outside—the truck connects to exterior fill and dump points, pumps waste, and refills fresh water in one efficient stop. Your office work continues normally without any disruption from service activities.
We can help you determine optimal service frequency based on your specific office trailer size, staff count, and facility usage patterns.
Yes—for construction sites with multiple office trailers, we provide corresponding Mobile Water Box units creating comprehensive water management for your entire office complex. We’ve served sites with 2-3 trailers up to larger installations with 10+ office trailers requiring water and waste management.
We position units efficiently, coordinate service routes covering all installations, and provide centralized support across your complete office trailer infrastructure. Whether your trailers cluster together or spread across your construction site, we configure solutions matching your specific layout and operational needs.
For very large office complexes, we can discuss whether individual units per trailer or higher-capacity units serving multiple adjacent trailers better fit your situation.
Construction project timelines frequently extend beyond initial estimates—we completely understand that reality. Extending your Mobile Water Box rental is straightforward: simply contact us before your current term ends to discuss continuation.
We accommodate reasonable timeline adjustments without penalties, offer flexible month-to-month arrangements when completion dates remain uncertain, and maintain same-quality service throughout extended periods.
If your project completes early, we coordinate prompt removal at your convenience. Our goal is supporting your project needs—not creating complications around rigid rental terms.
For most construction site locations, we can deliver and install your Mobile Water Box within 48-72 hours of confirming your need, assuming the office trailer is positioned and ready for connection. Installation itself typically requires 3-4 hours from our team’s arrival to complete, tested functionality.
For urgent situations—unexpected office trailer additions or emergency replacements—contact us directly at (844) 900-3190 to discuss expedited service options. We understand construction schedules sometimes compress unexpectedly and work to accommodate tight timelines when possible.
If you’re placing an office trailer with a bathroom and kitchenette at your construction site, you need reliable water supply and waste management that actually works—especially during winter. The Mobile Water Box delivers exactly that: exterior positioning preserving office space, insulated and heated for freeze protection, quiet operation supporting productive work, and professional installation with efficient ongoing service.
Stop cramming bulky tanks and noisy pumps inside your office trailer. Get a purpose-built solution engineered specifically for office trailer applications at construction sites.
Contact Our Team Call (844) 900-3190 or request a quote online to discuss your office trailer installation, project timeline, and site requirements.
Receive Your Proposal We’ll provide clear pricing, confirm delivery and installation timeline, and answer questions about how the Mobile Water Box connects to your specific office trailer configuration.
Professional Installation Our team delivers your Mobile Water Box, positions it beside your office trailer, connects all plumbing and electrical, tests complete functionality, and ensures your bathroom and kitchen operate reliably.
Reliable Daily Operation Your office trailer facilities function normally day after day, season after season—including through freezing winter conditions—while you focus on managing your construction project.