Energy Performance Certificates

As experienced energy assessors we are fully accredited to produce Energy Performance Certificate’s (EPC’s) for new-build dwellings and commercial buildings throughout the UK.

What is an EPC?

An Energy Performance Certificate (EPC) is a document which states the energy efficiency of a building. They provide an analysis of a property’s energy performance and identify cost-effective improvement measures that help to save energy, reduce bills and cut carbon dioxide emissions. With very few exceptions the law requires that all buildings must have an EPC lodged on the Central Register upon completion of construction. 

'Design Stage' Assessment

It is prudent to check the EPC rating that your building is likely to achieve, particularly if you wish to achieve a specific EPC rating. We will perform an assessment using approved software to establish the EPC rating your building is achieving based on design stage data.

‘As-Built’ Assessment

We are fully qualified to produce EPCs for a variety of buildings across the construction industry. The different procedures for domestic and non-domestic buildings are described below:

Domestic

Once the construction of the building is complete a second assessment will be undertaken by Carbon Futures to check that any deviations from the ‘design stage’ calculation are reviewed to ensure compliance with regulations has been maintained. 

We do not need to visit the site and all information is gathered via correspondence between the project design team.

Towards completion, we will typically distribute a checklist requesting as-built details of the thermal envelope, building services, air pressure test results and any other changes that may have occurred during the build process. You will generally be asked to check, sign and return the checklist which will be held on file for quality control purposes. 

Upon receipt of the signed checklist, the EPC will be lodged on the central register, enabling us to generate the EPC for the dwelling in electronic PDF format. A copy of the EPC will then be emailed to the relevant person for submission to Building Control and display within the dwelling.

Non-domestic

All non-domestic EPC’s must be performed by an accredited Low Carbon Energy Assessor and lodged on a central register.

Towards completion, we will distribute a schedule of information requesting as-built details of the thermal envelope and building services. The thermal model is updated to reflect the building before running the EPC calculation within the IES Virtual Environment software.

The Low Carbon Energy Assessor is also required to visit the site to verify the installation reflects the as-built information. After the survey, and on receipt of all as-built information, the EPC can then be lodged on the central register and will be issued.

As Low Carbon Energy Assessors are externally audited, you can be assured that we perform at the highest of standards, whilst we work swiftly to avoid handover delays.

"

MAST have a close working relationship with Carbon Futures.  We engage them on a range of residential projects where they work with us to develop robust SAP and energy strategies ensuring that we exceed the minimum standards.  They undertake energy and thermal modelling, provide Section 6 certification as well as EPC’s.  We value their input in undertaking options appraisals and value engineering exercises, with them adopting a thorough and professional approach, often working to tight timescales.  We look forward to working with them in the future and would be happy to recommend their services.

MAST Architects

"