Offices Nationwide

Air Testing & Leakage
We have a checklist you can download for Air Leakage Testing. If you follow our air tightness checklist, this will improve your likelihood to achieve a pass!

Point of Reference
10 dBA is the sound level of normal human breathing. To put it into perspective, thunder is a whopping 120 dBA...more
Childwall - Domestic Carbon Emission Calc - 0161 403 0129
The office that covers this area is: Manchester
Phone Number: 0161 403 0129 Email: childwall@e2consultants.co.uk
SAP Calculations is sometimes referred to as Part L1B Compliance, SAP Conversion Calcs, SAP Conversion rating, SAP Conversion Calc, SAP Conversion Assessment, SAP Conversion Calculations.
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).
The higher the SAP rating, the lower the cost will be to run the building. The score represents the cost of energy required by a property over the course of a year with a 100 score meaning there's no energy cost. To calculate the SAP, the assessor uses information relating to lighting, heating, hot water systems, renewable technolgies used and the elements of structure.
Why Do I Need A SAP Calculation?
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 Childwall in 2006.
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.
How Is A SAP Assessment Undertaken?
A SAP is done off-site but requires plans and drawings of the site in order to be calculated. Amongst other things, the SAP assessor will determine how good the thermal elements are in the floors and walls and 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.
The crucial information needed for the SAP software relates to the type of dwelling, floors, walls, the roof, windows, doors, lighting, renewable technologies, 'U' values, hot water and ventilation. With this, we can determine if a building complies with Building Regulations in Childwall.
Our other services include:
Domestic Carbon Emission Calc can also be known as:
SAP Calculations, Standard Assessment Procedure, SAP Assessment, SAP Calc, TER DER Calculation, SAP Rating, Domestic Carbon Emission Calculation, TER DER Calc,


Copyright 2025 E2 Specialist Consultants Limited
Company No. 06728970