Offices Nationwide

Air Testing
As part of thermographic surveys we can also use an air Pressure testing kit to depressurise the building and help detect any air leakage within the property..more

Air Testing & Leakage
We can offer additional services at discounted rates along side our tests! These are Sound Testing and Part F. Ask our Consultants for more
Thermal Bridging And Airtightness
Enhanced Construction Details

Chalfont St Giles - Standard Assessment Procedure - 01908 900 138
The office that covers this area is: Milton Keynes
Phone Number: 01908 900 138 Email: chalfont-st-giles@e2consultants.co.uk
SAP Calculations is sometimes referred to as SAP Conversion rating, SAP Conversion Assessment, SAP Conversion Calcs, Part L1B Compliance, SAP Conversion Calculations, SAP Conversion Calc.
How Is A SAP Assessment Undertaken?
The SAP software will determine if a building complies with Building Regulations in Chalfont St Giles using the information provided by the SAP assessment. This crucial information relates to the type of dwelling, floors, walls, the roof, windows, doors, lighting, renewable technologies, 'U' values, hot water and ventilation.
Amongst other things, the SAP assessor will determine how good the thermal elements are in the floors and walls as well as how well heat passes through these elements - this is known as a 'U' value. A high 'U' value represents a high amount of heat lost - this is used in the SAP calculation which is done off-site but requires plans and drawings of the site in order to be calculated.
Why Do I Need A SAP Calculation?
You will need to provide information about energy efficiency in a Predicted Energy Assessment (PEA) if you are planning to sell the property before it has been built.
It is the responsibility of the builder to provide any On Construction EPCs when a home is constructed. This will also apply if a building is converted into fewer or more units (material change of use) and changes are made to the heating, hot water provision or air conditioning/ventilation services.
Any conversions or new dwellings need to have a SAP Calculation and Predicted EPC before any work can begin as outlined in Part L of Building Regulations in Chalfont St Giles in 2006.
What Is A SAP Calculation?
A SAP calculation, the Government's Standard Assessment Procedure for Energy Ratings, is required to produce an On Construction EPC (Energy Performance Certificate) or a Predicted Energy Assessment (PEA).
A SAP rating represents the cost of energy required by a property over the course of a year with a score of 100 meaning there's no energy cost. This is calculated from lighting, heating, hot water systems, renewable technolgies used and the elements of structure. The higher the score, the lower the cost of running it.
Our other services include:
Standard Assessment Procedure can also be known as:
SAP Rating, TER DER Calculation, Domestic Carbon Emission Calc, TER DER Calc, SAP Assessment, Domestic Carbon Emission Calculation, SAP Calculations, SAP Calc,


Copyright 2025 E2 Specialist Consultants Limited
Company No. 06728970