With respect for the environment.

Decomo places great importance on all matters relating to sustainability and improving the environment within which we live. We are fully committed to achieving a net zero carbon economy by 2050 and are continually working towards meeting our industry targets as demonstrated by our status as a fully audited Member of the Mineral Products Association (MPA) Precast Sustainability Charter as well as our ISO14001 accreditation for our Environmental Management System.

Although not always, commonly, appreciated, Architectural Precast Concrete and, indeed, concrete in any form, naturally offers many sustainable advantages over other types of material.

Concrete’s durability and resilience and its resulting longevity are critical to ensuring that it remains fit for purpose for many generations. Typically, buildings utilising Architectural Precast Concrete elements will have a design life of 50 or 60 years with 100 years becoming increasingly common.

The whole-life performance of concrete over such long lifetimes can offset the embodied carbon relating to the initial impact of production methodologies through better energy efficiency and reduced ongoing maintenance requirements. Significantly, it also naturally absorbs atmospheric carbon during its lifetime through ‘carbonation’; a process which increases when concrete is crushed and recycled. Up to a third of its original embodied carbon can be absorbed in this way.

There is much to suggest that utilising concrete, with its impressive durability and longevity, may represent a more sustainable option than selecting other materials which may possibly have ultra-low embodied carbon credentials but, equally, only offer relatively short life spans in use.

The versatility of Architectural Precast Concrete elements together with the philosophy of ‘long life, loose fit’ allows much scope for re-use and where this may not be practicable or desirable, concrete can be 100% recycled.

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  • What actions do we take to control our energy and water consumption?
  • How does sustainable waste management limit our impact on the planet?
  • What are we doing to reduce our CO emissions?
  • And how can we reduce our ecological footprint even further by being smart about raw materials and hazardous substances?

An answer to all these questions can be found below

Decomo is investing heavily in renewable energy sources.

LED lighting, more daylight in our workspaces and optimal insulation keeps our energy consumption to a minimum.

The 2 installations of our solar panels comprise of as many as 1,000 panels on the roof of our finishing hall and 294 panels on the roof of the concrete plant and already provide 30% of our total electricity needs.

In the most recent extension on the site (2016), concrete sandwich panels with a high insulation value were chosen. A first roof renovation was carried out in 2020, focusing on roof insulation and additional incidence of daylight in the studios (to save artificial light and electricity useage).


2021 entire site converted from traditional lighting to led bulbs.

Solar energy

1.294 solar panels supply 30% of our needs.


Extra attention for insulation in new builds and renovations.

Decomo developed a thorough water recovery system.

The production of architectural concrete requires a large amount of water, both during production and when finishing the concrete elements. Therefore, we have developed a thorough water recovery system and are committed to treating industrial waste water.

Since 2004, the polishing and finishing areas have been equipped with a water treatment plant to collect, treat and recycle wastewater and a plant to store some 310 m³ of rainwater. The latter, recycled water is used during the finishing process of architectural concrete.


700,000 litres of water collection 

  • buffer tank under the parking
  • various rainwater storage tanks on the site



ECOFROG machine: separation of sand and gravel particles, these particles are reused in various concretes This reduces the amount of inert waste.


Water collection and treatment ensure that we use less than 10,000 m³ of fresh water per year instead of 26,000 m³.

Decomo commits to maximum recovery and recycling.

In our production and finishing workshops, we use materials efficiently. Thanks to sophisticated waste management, we keep waste streams as low as possible and strive for maximum recovery and recycling of residual products. To this end, we work in association with registered waste recycling companies.

Decomo maintains a register of waste collected by approved organisations. Our aim is to sort as much as possible and reduce the amount of class 2 waste (mixed construction and demolition waste) that cannot be recycled.

Sludge processing

After collection, the sludge is processed by an approved treatment centre and, if possible, reused in another industrial process.

Steel grit and wood waste

Recycled up to 6x and then reused as a full blasting media. Formwork wood is fully recovered.

Waste segregation

  • colour system where waste is deposited by type
  • each container will have its own colour and annotation
  • take-back of maximum waste by authorized companies

Decomo is committed to achieving a CO₂ neutral future.

In our ambition to become a carbon-neutral company, we are not only committed to maximum reduction in energy use and water recovery, we are also researching into concrete products with lower CO values.

We are also making efforts to reduce CO emissions from our production installations to improve the air quality on our site.

All installations are equipped with filters and comply with legal standards on emissions, controls and frequency of controls. The follow-up is ensured by a maintenance program that automatically notifys the dates of required planned preventative maintenance and controls (support access).


13 Economical and clean installations for propulsion and heating at the mouscron site.


The filter-equipped installations comply with legal standards on emissions, controls and monitoring frequency. All dates of maintenance and checks are tracked by the maintenance programme. Follow-up ensured.

Less dust

  • cement and limestone carefull unloading
  • extraction and filtration system in joinery for wood chips and sawdust

Decomo uses primary raw materials.

To produce architectural concrete, we primarily use raw materials such as aggregates, sand and FSC certified timber (for the formwork). In addition, we also process steel, cement and cement substitutes. Thanks to the high quality of the raw materials and efficient application (and logistics), we further enhance the sustainable character of our products.


100% recycled steel for the reinforcement in the concrete elements.


Use of FSC certified timber sourced from sustainably managed forests for the formworks.

Cement and CO₂ emission

Reduce carbon footprint by looking for:

  • appropriate concrete design for reduced cement content
  • cement substitutes
  • new cement types

Sand and aggregates

32 above-ground silos: 32 x 64 ton capacity

Arranged in 2 rows, fully enclosed in the factory building. therefore aggregates no longer need to be stored outdoors in concrete bunkers and transported by wheel loaders to the concrete plant.

Aggregates are extracted from European quarries and selected by colour to ensure the aesthetic qualities of architectural concrete.

Decomo manages hazardous materials correctly and safely.

The production and finishing of architectural concrete cannot be done without using hazardous substances.

It goes without saying that when using them, we follow strict regulations and procedures to ensure the safety of our employees, prevent workplace calamities and minimize the impact on the environment.


  • chemicals are stored in retention tanks to prevent the risk of any products from entering drainage systems
  • in case of spils, spill kits are available
  • safety data sheets, centralized and maintained, are available to all ­employees
  • legal precautions are taken for the various depots


Hazardous products are stored on a bund or drip tray that remains closed and is identified and labelled. Hazardous waste is collected in specially provided containers that comply with all regulations. These are fitted with a plastic bag to shield the products from the environment.


Collection is provided by a specialized company.