Hand Made Compost Toilets

Thunderbox compost toilets are the simplest way of providing a remote or off-grid toilet without costing the Earth.
Whatever your requirements - talk to us!

Welcome to Thunderboxes

Here at the Thunderbox Collective we make a variety of compost toilets to order, or you can hire them for festivals and other short term events. Thunderbox compost toilets use a virtually maintenance free system that is ideal for a wide variety of situations.


We have a strong environmental ethos and view sustainability as a priority. Our timber is sourced from sustainably managed Devon woodlands and compost is collected in recycled food containers.

Event Hire

From small events, weddings and camps to larger festivals, Thunderbox compost toilets provide a solution that is pleasant to use. Devon and Somerset only - sorry.

No Water or Electric

Thunderbox compost toilets are entirely off-grid, requiring no water or electricity. We can include solar lighting, and provide hand sanitiser dispensers for waterless locations.

Environment Agency Approved

We have been working with the Environment Agency to ensure that the Thunderbox compost toilet system is a safe one.

The Thunderbox Collective have provided an excellent service to us over
a number of years. We have been extremely happy with the efficiency
with which they have set up and taken down the units supplied and we
were considered the price they charge very reasonable. We have no
hesitation in recommending them.

Roland WilkinsonSchool of Movement Medicine

We now have 3 thunderboxes, a single, a double and a disabled one. The installations were efficient and the toilets themselves have made a real difference to our facilities. The wooden structures fit well into our woodland environment, they are low impact, low maintenance and perfect for our needs.

Jo WinterburnRunning Deer

We are very pleased with our Thunderbox and look forward to using it during Forest School sessions.
Thank you.

Jan WhellerWellington prep school

You will be pleased to learn I enjoyed using the Thunderboxes at Balter festival. A great design.

Anton GijsenHappy punter

Of the many designs of composting toilets implemented by National Trust, the Thunderbox has been reviewed by an independent consultant as one of the best.

Chris WeedonConsultant

Single Thunderbox

Pleasant to use, requires no water or electricity, and most importantly, makes great compost!

How does it work?

Creator of quality timber products with a strong environmental ethos

We all have an obligation to the planet that sustains us not to use more resources than we really need in order to survive. Thunderboxes are the perfect solution for those who take their carbon footprint seriously.

For Event Organisers

Hiring a Thunderbox compost toilet

Those of you with larger events will usually need site specific discussions beforehand but will have the advantage of economy of scale. Generally, the hire of a double Thunderbox compost toilet works out around £350 (or £175/seat) without servicing, but includes delivery (within 30 miles), collection and subsequent disposal. We take 'poo miles' seriously, so we don't travel more than 70 miles from our base in mid Devon for small events. All our loos come with lighting, sawdust, loo roll, magazines, flowers and LOVE!

Contact us
Legal Recognition At Last!

Environment Agency Approved

We've been building compost loos since 2003 and so we have considerable experience in all scales of events and sites. We have also been working with the Environment Agency over the last few years to develop the new code on composting human waste, based on the Thunderbox method. We hold risk assessments and safety records as well as special excemption licences for some of our clients. It is important to talk to us early in proceedings to allow time for the paper trail to catch up with our bacteria!

Thunderbox Options

With low usage and up to 1000 litres capacity under your seat there’s no fear of ever getting full! Just swap the tanks over if you do.
We can deliver anywhere in the UK.

Basic Model


Single Thunderbox

Great value! Basic Thunderbox with one cubicle.

From £1750


Most Popular


Double Thunderbox

Two cubicles back to back for extra user facility or male/female cubicles.

From £1950


Big Size


Family Thunderbox

Based on our double Thunderbox but with one larger than normal cubicle.

From £1850


Good Value


Disabled Access

Ramp, handrails and easy access sliding door! Comes as a double with larger than normal cubicles and a urinal.

From £3900


Find a Thunderbox!

We have provided Thunderbox compost toilets to hundreds of sites around the UK. From urban allotments to remote Scottish camp sites, it’s even possible to install  a Thunderbox without vehicle access! This map shows some of the locations of our Thunderboxes.



We Love to Chat!

Contact us today to talk through your requirements

All of our Thunderboxes can be customised to suit your needs. We have a solution for everything!