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Central Heating &  Gas Engineers

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© 2006 Abacus Gas


In April 2005, the Building Regulations for England and Wales changed in some very important ways.  

The new regulations stipulated that when a gas appliance in a residential property is renewed or exchanged, the work must be notified to building control which, under normal circumstances would involve a delay in carrying out the work and extra costs.  To avoid the lengthy and costly process of notifying building control the Government introduced Competent Persons Schemes allowing individuals and businesses to self-certify that their work complies with the Building Regulations.

In order to self-certify an engineer must prove competence and register with an approved Competent Persons Scheme (such as CORGI).

For electrical works engineers must be Building Regulations Part 'P' Compliant and carry £2million Public Liability Insurance and offer an insurance backed Workmanship Warranty.

CORGI's Complete Safety Initiative the 'Gas Work Notification Scheme' was launched to enable engineers to self-certifiy. Click here for more information Work Notification Information

One of the Governments first steps in its action to seek improvements to the energy efficiency of homes is through changes in the building regulations which deal with the minimum standards for buildings.  The Regulations are designed to ensure the health, safety and welfare of people in and around buildings and to encourage energy conservation.

From 1st April 2005:

  1. All gas boilers installed in England and Wales must be of the condensing type.  Exceptions are allowed in certain exceptional circumstances and we cover this issue later.

  2. Details of all boiler installations must be supplied to the Local Authority Building Control. (LABC)

  3. Any electrical work that involves adding a new circuit must be either

    1. completed by a person competent to carry out the work and notified/inspected by LABC or

    2. completed by a competent person registered with a Part P self-certification scheme who must then notify the scheme provider.

  4. Small jobs such as replacing socket outlets in kitchens and bathrooms must also be notified.

More information on these issues can be found on the website of the Office of the Deputy Prime Minister.


From 1st April 2005 it is a requirement of the Building Regulations Part L1 (Conservation of Fuel and Power) that any replacement or new gas fired boiler be of the condensing type.  

There are certain exceptional circumstances where a standard efficiency boiler may be installed and these are determined by an Assessment procedure. 

The assessment is an evaluation of the property to find a position where a condensing boiler can be installed at lowest cost, ignoring obstacles such as furniture or fitments and disregarding whether or not the position is acceptable to the owner.

If a customer does not want a condensing boiler or it is too difficult and expensive to install one, the engineer will fill in an Assessment Form which is based on points system.

The points system has been developed so that a simple 'yes' or 'no' decision can be made as to whether or not a condensing boiler must be installed.  

This Assessment will take into account:

  • The property type (flat, semi-detached, detached etc)

  • The fuel type

  • If the boiler needs to be moved to another position. 

  • If the flue needs to be extended

  • The need for a condensate soakaway or pump.

All feasible condensing boiler positions anywhere within the property and flue options, irrespective of  whether they are acceptable to the owner will be taken into account  including cost and feasibility.   Should the points be lower than 1000 a high efficiency condensing boiler must be installed.  If the points for the installation are higher than 1000, a standard efficiency boiler can be installed.  An Assessment Form, signed by a competent person, must be kept as evidence of compliance with the Building Regulations and may be required when the house is sold. 

There have been a number of leaflets produced giving more information.  Click on one of the leaflets to read the complete document.

For more detailed information on Condensing Boiler Installation Assessment Procedure.

Building Regulations Information - Click Here

For more detailed information on the Building Regulations

Advice to Householders - Click Here

The ODPM have produced a leaflet that gives a simple explanation of the new energy efficient standards for new and replacement boilers, the role of condensing boilers and the actions that households may need to take

BRE frequently asked questions.

There have been a number of leaflets produced giving more information.  Click on one of the leaflets to read the complete document.

Building Regulations
Part L1

Building Regulations - Part L1

New Building Regulations - They Will Effect Your Home

New Building Regulations - They Will Effect Your Home

You will need to have Acrobat Reader installed on your computer to read .pdf files.  Click on the button be;ow to go to the relevant download site.