In-house workshops
From design to production and installation — all in-house.
About us
Your brand in sight for over 190 years.
Herva is the Belgian branch of the Doublet Group, a family business founded in 1832 that has grown into a European reference in visual communication, signage and facility solutions.
From our headquarters in Olen we work for SMEs, municipalities, retailers and developers across Belgium. Our in-house designers, production and installation teams let us keep projects fully under control.
Active across Belgium from Olen, and across Europe via the Doublet Group.
1832
Founded
300+
People in the group
ISO 9001/14001
Certified
100%
LED conversion where possible
Our values.
Long term
We think in partnerships, not one-off transactions.
Sustainable business
ISO 14001, recycled materials and energy-efficient LED.