Building high-end and affordable noise barriers to block traffic noise.


Many talk about it

We do it 

Every single day

Noise Block Projects | Henk Steenhoudt

Highway to Silence


Solicited in 2011 by a world-leader in the polymer industry, we agreed to take the PVC noise barriers unit to the next level: noise barriers based on recycled plastics (PVC).

Highlight was a major railway project in 2015: 60.000 sqm of PVC noise barriers were rolled out along several HST tracks in France. An important breakthrough for plastics in this field, for sure when compared to more conventional barriers like concrete or aluminium .

Despite years of presentable success, the board decided to reserve all recycled PVC compound entirely for the production of core products.

After all, the noise-program had served its purpose, promoting low-carbon plastics. The business unit was about to be put to sleep, the entire supply chain was in danger.

I had to find a solution for dealers, contractors and designers. An emergency scenario was rolled out in order to secure business in progress and projects in the pipeline.

Luckily, I came across an alternative that would help out most stakeholders in the field of low-carbon barriers. A meeting was set up with NOISE Srl., Italian manufacturer of Le Difese noise  barriers, also based on recycled plastics.

The factory visit was an eye-opener: low-carbon extrusion and high-tech injection processes based on recycled compounds (PVC + PC-ABS) proved their ecological ambitions.

Simultaneously the quality and appearance of their products appeared to be more balanced then anything I had seen before. More and better designs were possible thanks to new technics like hydro-dipping and the introduction of LED modules.

In all, very sustainable products offering more value for money. 

We exchanged expertise and defined mutual goals leading to personal commitments and a strong partnership.

I started up a consulting agency with focus on the further development of Le Difese noise barriers. Goal was to develop dealer networks and partnerships throughout Europe.

The supply of sustainable plastic noise barriers had been restored: a direct link between manufacturer, investors and designers had been re-established.

Noise Block Projects was born.



Sincerely yours,


Henk Steenhoudt


Business development in low-carbon noise reducing projects since 2010

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