Commercial Energy Assessor

Job Description:

Commercial energy assessors measure the energy efficiency of commercial buildings to produce Non-Domestic Energy Performance Certificates.

Job Category:
Energy & Utilities

What you will do:

In your day-to-day duties, you may:

  • carry out detailed inspections of properties
  • collect information on property age, number of floors and building type
  • measure the number and size of rooms and windows
  • identify heating systems
  • write reports and advise on how to reduce energy use and costs
  • record the information on a computer system to produce an energy efficiency rating and Energy Performance Certificate (EPC) (a UK requirement)


You’ll need:

  • knowledge of building and construction
  • maths knowledge
  • to be able to use a computer and the main software packages competently

As well as:

  • to be thorough and pay attention to detail
  • the ability to read English
  • analytical thinking skills
  • excellent verbal communication skills
  • customer service skills
  • the ability to use your initiative (drive)
  • organisational skills
Illustration of employee looking at workspace

Entry Requirements:

To become a Commercial Energy Assessor, you typically need to focus on subjects and skills related to the field of energy assessment, building construction, and environmental science. While specific subjects are not mandatory for this profession, the following subjects can be beneficial:

  1. Mathematics (Maths): A strong foundation in mathematics is important for performing calculations related to energy efficiency, building measurements, and energy assessments.
  2. Science Subjects: Physics and Chemistry can provide valuable insights into the physical principles and chemical processes related to energy consumption, insulation, and HVAC (heating, ventilation, and air conditioning) systems.
  3. Design and Technology (DT): Courses related to design, technology, and construction can introduce you to building structures, materials, and energy-efficient design principles.
  4. Environmental Science: Knowledge of environmental science and sustainability can be highly relevant, as Commercial Energy Assessors often work to improve energy efficiency and reduce environmental impacts.
  5. Geography: Geography can provide insights into climate, regional energy patterns, and the environmental factors that affect energy use.
  6. ICT (Information and Communication Technology): Proficiency in using computer software and modeling tools is essential for energy assessment calculations and reporting.

Post School

You can get into this job through specialist courses run by private training organisations.

Other Routes
If you have no previous experience of commercial energy assessing, in the UK you’ll need to do one or both of the following:

  • Level 3 Diploma in Non-Domestic Energy Assessments
  • Level 4 Diploma in Commercial Energy Assessments

With a Level 3 diploma, you can carry out assessments on existing buildings.

With a Level 4 diploma, you can carry out assessments on new and existing commercial buildings.

If you have relevant experience from related roles or industries like surveying, construction or engineering, you may be able to do a fast-track course or have your previous experience accredited.

Working Hours and Environment:

Typical work hours are variable.

You could work in an office, from home or visit sites.

Career Path & Progression:

With further training you could:

  • carry out low-carbon assessments
  • consult on sustainability issues
  • become a teacher, helping students gain a certificate or diploma