HMP Berwyn in Wrexham is the largest prison in the UK – with the capacity to hold 2,100 inmates – and it enlisted the team at SD Sealants to assist with the development of its expansive building.

The facility, which opened its doors in February, became fully operational this autumn and comprises three wings, each housing 702 men. The prison also has new gyms, five-a-side pitches, a library and a visiting room with a play area for children.

The SD Sealants team worked on the ancillary buildings including the college, health care centre, kitchen, workshops, multi-faith centre, the sports block, visitors building and reception buildings. They also carried out sealant work on house blocks.

SD Sealants, which provides sealant application, cosmetic repairs and tiling for commercial businesses, homeowners and house builders, celebrated its most successful month of business in May.

Managing Director Nick Jones, said: “We couldn’t be happier with the progress made already this year. May saw us producing the highest turnover to date, with the largest workforce under our roof, and to top it off we also have a number of great projects like the HMP Berwyn at Wrexham ongoing.”

Launched in 1973, SD Sealants and Cosmetic Repairs originated as a family run business in Somerset that specialised in the supply and application of sealant. Since then, the business has gone from strength to strength, becoming one of the UK’s largest sealant companies, with eight offices across England, Scotland and Wales.

In that time, SD Sealants has extended its services to include cosmetic building repairs, and as of this year, has introduced a new tiling service to its portfolio.