Welcome to Cook Group Ltd

Based in Hull, East Yorkshire, Cook Group Ltd have been an institution for over 45 years that specialize in structural waterproofing, structural repair and ground gas membrane installations.

Structural Waterproofing and Ground Gas Membrane Specialists

If you have any queries or questions simply give us a call.

Latest News

Our Services


Our speciality is designing and installing combined Ground Gas Membrane and Structural Waterproofing systems – Contact us today to speak to our CSSW qualified design team

Ground Gas

We specialize in the specification and installation of all types of Ground Gas Membranes, including CS1, CS2, CS3 (VOC) types


Cook Group are the only HeliFix approved installers in Hull and East Yorkshire  


We offer a complete service for waterproofing structures below ground. We specialize in new construction and the installation of combined waterproofing and ground gas membranes systems.

Areas we cover

We work nationally for structural waterproofing and ground gas membrane installations

For structural repair services, we cover Hull and the surrounding area

Why Choose Cook Group

Cook Group was established on 21st August 1974 as a limited company specialising in curing all dampness and timber decay/infestation problems. 
We have the same company registration number now as we did when the company was formed in 1974!
Shortly after our establishment, Cook Group branched out into the structural waterproofing of private dwellings and commercial buildings. From then on, we have contunued to set the standard for building preservation and structural waterproofing works. If that’s not enough, we are also owned by the same family that started the company. There aren’t many preservation companies that can make that claim!
With over 45 years experience in the industry, you can’t go wrong with Cook Group 
Home 22nd July 2016