Based in East Lancashire J&J Design Ltd (trading as J&J Fire Engineering) have been serving the sprinkler industry for over a ... quarter of a century. We are an LPCB Level 4 accredited company who specialise in water based fixed fire fighting systems, sprinklers, Gas Suppression, water mist, hose reels and wet and dry risers. Projects range from one and two head modifications, right up to entire distribution warehouses. J&J operate throughout the UK. read more