Specialists in the manufacture of GRP mouldings & impenetrable building solutions.


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Whether you’re installing a roof window, an access hatch or any other service on the roof of a building, the penetration will require careful planning and expert knowledge to ensure it is structurally sound and weatherproof.

Here at Jones and Woolman UK, we specialise in dealing with building penetrations, and our comprehensive service ensures the best results for your project – from the initial site survey, through to design and build, installation and maintenance. We specialise in working with commercial clients throughout the UK and Ireland, as well as overseas.

Our solutions include:

  • Roof penetrations
  • Vertical penetrations
  • Service risers
  • Commercial rooflights and windows
  • Access hatch and smoke vent upstands
  • Commercial roof repairs
  • Fibreglass roofs
  • GRP architectural mouldings
  • GRP linings

We can supply and fit a wide range of roof units, and we can also make and fit load-bearing curbs and upstands to suit requirements. Our unique inclined load-bearing curb system allows Velux and other types of roof windows to be installed on all types of low-pitched roofs.

In addition, our specially developed fibre-reinforced, cold-applied liquid weathering system is extremely weather resistant and is compatible with most types of cladding and single-ply membrane roofs.

To find out more about our building penetration solutions, or to discuss your project with a member of our team, please get in touch.

Why Choose Jones and Woolman UK

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Exceptional Service

Jones and Woolman UK offer an exceptional customer service from design to delivery, and we pride ourselves on being with you every step on the journey to completing your project.

“We’ll provide the answer to your cladding and roofing penetration requirements, from the complete weathering of complex details to the complete design, manufacture and fitting of load bearing upstands.”