Regulations & Accreditations

Part L: Conservation of Fuel & Power (U Values)
Part M: Access to and Use of Buildings
Part N: Glazing Safety
Pas 23: General Performance Requirements for Door Assemblies
Pas 24: Enhanced Security Performance Requirements for Door Assemblies

When constructing a new building, or making alterations or extensions to your existing one, we would always recommend that you speak to your local Building Control officer to ascertain exactly which building regulations might apply to the work you are carrying out. The application of these regulations varies from new build to renovation and also between domestic and commercial premises. The government's Planning Portal website is a very useful source of information concerning this area.

New and replacement doors are specifically referred to in the building regulation documents listed below and you should consult your local Building Control Officer if you have any doubts as to whether the regulations apply. Failure to comply may lead to additional costs or penalties at a later date to rectify any non-compliances.

The general public can find more information on where the regulations might apply to proposed work you wish to carry out on your home here .

One important point worth' noting is that 'Building Regulations' are entirely separate and different from 'Planning Permission':

Building Regulations set standards for the design and construction of buildings to ensure the safety and health for people in or about those buildings. They also include requirements to ensure that fuel and power is conserved and facilities are provided for people, including those with disabilities, to access and move around inside buildings.

Planning seeks to guide the way our towns, cities and countryside develop.  This includes the use of land & buildings, the appearance of buildings, landscaping considerations, highway access and the impact that the development will have on the general environment.

For many types of building work, separate permission under both regimes (separate processes) will be required.  For other building work, such as internal alterations, Buildings Regulations approval will probably be needed, but Planning permission may not be.  If you are in any doubt you should contact your Local Planning Authority or a Building Control Body.

Doors are affected by the following documents within the current Building Regulations:

Part L: Conservation of Fuel & Power (U Values)

Part L of the Building Regulations relates to energy saving relating to the use of suitably insulating materials and components, eg doors.

This standard is particularly relevant to new build where such properties must comply. It is also a very important standard on a lot of renovation work.

The current version of 'Approved Document L: Conservation of fuel and power' is split into four parts, click the links below to access the individual parts of the document on the government's planning portal website - downloadable copies of the documents can be found on these pages:

Part M: Access to and Use of Buildings

Part M of the Building Regulations relates to the 'Access to and Use of Buildings' and draws largely on the legislation covered by the 'Disability Discrimination Act 1995 and the Disability Discrimination (Employment) Regulations 1996.

This document is particularly relevant to new build where such properties must comply. If in any doubt as to whether your alterations are affected by this document, we would recommend that you contact your local Building Control department.

A copy of document Part M can be downloaded from the government's planning portal website here .

Pas 23: General Performance Requirements for Door Assemblies

PAS23 - General performance requirements for door assemblies. Single leaf, external door assemblies to dwellings - includes testing to BS6375 Part 1 with respect to weather performance and also general performance requirements.

Pas 24: Enhanced Security Performance Requirements for Door Assemblies

PAS24 - Enhanced security performance requirements for door assemblies. Single leaf, external door assemblies to dwellings - to give it its full title, tests the enhanced security performance of an external door.

This is a full blown attack on all parts of the door construction such as glazing, locks, joints and beads.