Diamond Shield Trade Windows
For Windows & Doors Business of the Year, Merseyside 2026
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Diamond Shield is an established independent supplier of windows, doors and glazing products based on Jackson Street in St Helens. The company specialises in uPVC and aluminium windows, composite entrance doors and bifolding and sliding patio doors. It operates a trade supply centre serving installers and building professionals across Merseyside and the North West. Its product range also includes roof systems and associated building materials.
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