A portable toilet is only as good as its last service. On a construction site or at a large outdoor event, a unit that is not serviced on time soon turns into a hygiene problem, a WHS liability, and a source of complaints from workers and attendees.
Understanding what a proper portable toilet service includes and how to set the right servicing frequency can save you time, avoid compliance issues, and keep your site or event running without disruption. Serious About Waste has been servicing portable toilets across South East Queensland for over 40 years, and this guide covers exactly what you need to know.
What Does a Portable Toilet Service Include?
A professional portable toilet service involves a lot more than a quick empty and wipe-down. Our servicing process is a structured, multi-step one carried out by trained operators using purpose-built vacuum trucks.
Step 1: Complete Waste Tank Empty
Using our custom-built vacuum trucks equipped with retractable hose reels, the operator carries out a complete empty of the waste tank. The retractable hose design allows access around construction sites with restricted space or multiple obstacles, and ensures all waste is fully removed rather than simply reduced.
Step 2: Odour Treatment
Once the tank is empty, 20 litres of fresh water are added followed by an odour neutralising sachet. This sachet is specifically designed to neutralise smells over a three to seven-day period, keeping the unit fresh between service visits.
Step 3: Consumables Restock
The operator restocks all consumables including soap and toilet paper to the full quantity required. Fresh water for hand washing and flushing is topped up to the correct level.
Step 4: Interior Clean and Dry
The interior walls, floor, and seat are washed, rinsed, and dried. Drying the interior reduces residual moisture that can contribute to odour and deterioration of the unit surfaces over time.
Step 5: Fragrance and Service Record
The interior is lightly fragranced to leave it smelling clean at the end of the service. The driver then updates the service record sticker with the date, time, and their initials. This sticker is affixed inside every Serious-serviced unit and provides a visible quality assurance record for site managers and clients.
All waste collected is transported to EPA-authorised treatment and disposal facilities. Complete documentation is handled electronically and monthly reports are available on request.
How Often Should a Portable Toilet Be Serviced?
Servicing frequency depends on how many people are using the unit and how intensively it is being used. We offer flexible servicing schedules to match the demands of different site types.
Construction Sites
For a standard construction site with regular daily use, weekly servicing is the most common arrangement. Sites with larger crews or higher usage may require twice-weekly visits. For projects with minimal foot traffic, fortnightly servicing may be sufficient.
As a starting point: if your site has fewer than 10 workers using a single unit on weekdays, weekly servicing typically maintains acceptable hygiene standards. For larger teams or multiple units, our team can advise based on your crew size and project duration. You can also review unit inclusions directly on our portable toilet hire page.
Events
For short-term event hire across Gold Coast, Brisbane, and Logan, servicing frequency is typically determined by the length of the event. Single-day events are generally delivered pre-serviced and collected after the event. Multi-day events and festivals may require daily servicing depending on attendance numbers.
Available Servicing Schedules
- Daily
- Twice weekly
- Weekly
- Fortnightly
- Monthly
- Dry hire (no servicing included)
Emergency servicing is also available 24/7 for urgent situations.
Does Serious Service Portable Toilets the Client Already Owns?
Yes, we service portable toilets owned by customers as well as units hired from us. If your site has existing portable toilet infrastructure that requires professional servicing, our team can establish a regular schedule to keep those units compliant and operational.
This is particularly useful for construction companies, civil contractors, and event hirers who manage their own equipment but require a licensed operator to handle waste removal and disposal.
Fleet Capability and Access
We operate a fleet of over 40 custom-built vacuum trucks designed to access a wide range of site conditions:
- Low-clearance entry trucks under 2.2m for restricted access sites
- 4WD vacuum truck and trailer combinations for complex terrain
- Up to 30,000 litres per trip capacity
This fleet capability means Serious can service sites that standard operators cannot access, including basement-level facilities, tight construction site entries, and remote project locations.
Portable Ablution Blocks and Larger Site Requirements
For larger construction sites and long-duration events, portable ablution blocks provide a more substantial sanitation solution than individual portable toilets. These multi-unit configurations are serviced using the same process as individual units, with waste removal, consumable restocking, and interior cleaning carried out on each chamber. Contact us to discuss ablution block hire and servicing options suitable for your site size.
Why Servicing Compliance Matters
Under Queensland Work Health and Safety legislation, employers must provide appropriate welfare facilities for workers on site. This includes maintaining sanitation facilities in a clean, hygienic, and functional condition. Regular documented servicing by a licensed operator is the most straightforward way to demonstrate compliance.
We provide full electronic documentation of every service, with monthly reports available on request. Call 1300 882 786 or visit our portable toilet servicing page to set up a schedule for your site.
Frequently Asked Questions
What does a portable toilet service include?
A full Serious About Waste service includes a complete waste tank empty, addition of 20 litres of fresh water and an odour neutralising sachet, restock of soap and toilet paper, fresh water top-up, interior wash and dry, light fragrance, and a service record sticker update.
How often should portable toilets be serviced on a construction site?
Weekly servicing is the standard for most construction sites with regular daily use. Higher-traffic sites or larger crews may require twice-weekly visits. Our team can advise on the right frequency based on your crew numbers and project duration.
Does Serious service portable toilets that the client already owns?
Yes. We do service client-owned portable toilets on a schedule that suits the site. Contact the team to discuss your existing units and confirm a servicing arrangement.
What happens to the waste after collection?
All waste is transported to EPA-authorised treatment and disposal facilities in Queensland. It is treated and, where appropriate, recycled to the highest possible environmental standard. Full disposal documentation is provided electronically.
Are there lock-in contracts for portable toilet servicing?
No. We do not require lock-in contracts. The team recommends that any existing supplier contracts are no longer binding before the service start date, and we operate without fixed-term commitments, relying instead on quality and reliable service.


