What is our mission ?

At Coliseum, our mission is to reduce the carbon footprint of the construction sector by limiting material waste. We believe that the key to achieving this goal is to make the use of reused or surplus materials easy and economical, so that they become a real alternative to new conventional materials.

Build Better


What are our values ​​?

The construction sector is responsible for 40% of global greenhouse gas emissions. Faced with this reality, it is urgent to act to guarantee a more sustainable future for future generations. As the energy efficiency of buildings advances rapidly, it is crucial to look at the construction methods themselves. Tons of construction materials are currently, at best, recycled, or at worst thrown into landfills. Very often, these materials could be reused to extend their lifespan.

At Coliseum, we believe that reusing building materials is essential to building more sustainably. By adopting a circular approach, we can transform construction into a more environmentally friendly activity and help address the climate challenges we face. We are determined to do our part to improve the sustainability of the construction sector and we invite everyone in the sector to join us in this crucial effort for the future of our planet.

Our blog


Who are we ?

We are Marc-Antoine and Barthélemy, two entrepreneurs passionate about the idea of ​​contributing to a more sustainable construction sector.

Drawing on our experience in the world of construction - Marc-Antoine on the contractor side and Barthélemy on the client side - we have often observed that the implementation of more circular practices was often so complex that many gave up trying.

This is why we decided to act by creating Coliseum, a unique supplier of circular construction materials (reuse and surplus).

We are convinced that simplicity and accessibility are the keys to encouraging construction stakeholders to adopt more sustainable practices. Our mission is to make the use of circular building materials simple and economical for everyone. At the Coliseum, we want to help construction stakeholders integrate more sustainable practices and contribute to a greener future.

Contact us