Welcome to Dual Energy Assessors

We would like to take the opportunity of introducing ourselves as Dual Energy Assessors, and our sister company Dual Home Inspectors, which are a part of the Dual Group. The Dual Group has been successfully trading in properties for over 20 years, and our staff is fully qualified in carrying out the following inspections in both the commercial and residential market:

  • SBEM Calculations (The governments Standard assessment Procedure for energy rating of Non dwellings part L2A & L2B of the building Regulations).
  • NDEPC (Energy Performance Certificates for existing or “As Built” Non Domestic dwellings).
  • SAP (The governments Standard Assessment Procedure for energy rating of dwellings part L1A & L1B of the building Regulations).
  • PEA (Predictive Energy Assessment for off plan domestic properties).
  • "On Construction EPC" (Energy Performance Certificates for “As Built” new build dwellings properties).
  • "On Construction EPC" from comprehensive SAP data set.
  • Code for sustainable Homes).
  • EPC (Energy Performance Certificates for existing dwellings).

Available information in relation to the regulatory requirements on EPC's is sometimes unclear. With this in mind, we have put together some information sheets which we hope will be useful, and will provide you with clear information without government jargon/doublespeak.

Should you require a competitive quotation for any of the services we offer, please do not hesitate to contact us.

All quotations are, of course, free of charge, and without obligation.

We look forward to hearing from you in the near future.


Mike Jones

Dual Home Inspectors

399 Old Chester Road
CH42 2DU

0151 214 1420

We are listed on Code North Wales