In the United Kingdom, the rules and regulations for installing handrails in buildings are primarily covered by building codes and standards set by the government. Before installing a safe and effective handrail solution, the British Standards BS6180 should be consulted for guidance on safe handrail installation in various environments, with BS 4592-0:2006+A1:2012 providing comprehensive information on industrial usage such as on commercial premises. Specific regulations may vary depending on the type of building, its use, and the year it was constructed or renovated.
It's important to note that building regulations and standards can change over time, so it's essential to consult the most recent version of the Building Regulations and any local codes or guidelines issued by your local authority. Additionally, if you are planning to install handrails or make any structural changes to a building, it is advisable to seek guidance from a qualified architect, builder, or structural engineer who is knowledgeable about the current regulations and can ensure compliance with them.