We are a family run company based in the beautiful county of Norfolk providing energy assessments and support throughout the UK.

Originally set up as Construction Assessment Services by Robert Fleming in 2008, we became a limited company in 2015.

We have a number of qualified assessors who are able to provide the following services.


  • New Build Energy Assessments on both Domestic and Non-Domestic buildings.
  • SAP & SBEM levels 3, 4 & 5 on New and Existing buildings (as per Building Control approved document part L1A, part L2A and part L2B)
  • CO2 Emissions Reports (as per Building Control approved document part L1B)
  • Water Usage Calculations
  • U-Value Calculations
  • Condensation Analysis Reports
  • Thermal Modelling Simulation
  • Sustainability Reports
  • Calculations for discharge of Planning conditions
  • Renewable energy feasibility studies
  • Pre Tender Assessments
  • RdSAP
  • Code for Sustainable Homes



We pride ourselves on being able to assist you with your project from planning, design stage right through to completion.

With many years of experience within the construction industry, our assessors are able to see things from the construction side as well as design and are willing to help you to resolve any issues along the way.