Welcome to Cook Group Ltd



Based in Hull, East Yorkshire, Cook Group Ltd have been an institution for over 45 years that specialize in building preservation, structural waterproofing 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


Celebrating 45 Years of Cook Group

Our services include

Cook Group are truly a specialist company, our services include building preservation, structural waterproofing, lift pit waterproofing, ground gas membrane installations and structural repairs using the HeliFix system. 

Ground Gas

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


We have over 45 years experience in dealing with all manner of damp and timber problems in buildings. 


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, lift pit waterproofing and ground gas membrane installations

For all other Services:

  • Hull
  • Bridlington
  • Beverley
  • Barton
  • Brigg
  • Cottingham
  • Goole
  • Hedon
  • Hessle
  • Market Weighton
  • Hornsea
  • Pocklington
  • Howden
  • Withernsea

Why Choose Cook Group

Cook Group was born 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!
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!

Contact Cook Group

  • Ground Gas Membranes
  • Structural Waterproofing 
  • Lift Pit Waterproofing
  • Structural Repairs
  • Damp Proofing & Rising Damp Treatment 
  • Woodworm Control
  • Dry Rot & Wet Rot Treatments
  • Condensation Control

What Our Clients Say...

Home 22nd July 2016