With a tradition that started 60 years ago in Denmark, Rationel has been characterised by skilled design work and proud craftsmanship. Today, Rationel supplies windows and door in premium quality, performance and energy efficiency.

Established: 1954 – joined the DOVISTA Group in 1999
Products: Windows and entrance doors made of wood and wood/aluminium
Distinctive qualities: durability, energy efficiency and security
Geographic presence: Primary market Denmark
Also present on UK and Irish markets
Exports about 30%
Market: Newbuild and refurbishment
Distribution channels: In Denmark sold through 400 builders merchants and DIY centres
In the UK and Ireland sold through distributors and building contractors