How Do I Become a Domestic Energy Assessor?

Domestic energy assessors are responsible for calculating the energy efficiency of residential buildings like houses and apartments. The role is diverse and you will have the opportunity to meet new people every day and make a positive impact on the environment.

If you’re interested in working in this rewarding field, then here is everything you need to know about becoming a domestic energy assessor in the UK:

What does a domestic energy assessor do?

A domestic energy assessor visits residential properties and completes a detailed assessment to calculate how energy efficient the building is. They record information relating to the age of the property, the number of floors, the heating and hot water systems, and more.

This information is entered into a computer software programme to produce an Energy Performance Certificate (EPC). A domestic EPC gives properties an energy rating from A-G, with A being the most efficient. Domestic energy assessors also provide property owners and landlords with recommendations to improve energy efficiency e.g. by completing energy-saving home improvements such as installing wall cavity insulation.

How do I become a domestic energy assessor?

You will need to complete a specialist training course if you want to become a domestic energy assessor. Most professionals complete an energy assessor course run through a private training organisation. Another route to qualification is to complete a Level 3 Certificate in Domestic Energy Assessment and become a member of an approved accreditation scheme. You might be able to qualify as a domestic energy assessor faster if you have experience in a related field like construction or property surveying. 

Once you’ve completed the necessary training, your details will be added to the register of accredited domestic energy assessors. This means that potential clients can find your details online and contact you with work.

What skills should a domestic energy assessor have?

Domestic energy assessors need several skills to be successful in the role. Here are a few preferred skills that you should either have or be willing to build on:

  • Knowledge of maths, engineering, and technology
  • Excellent communication skills, both spoken and written.
  • Knowledge of construction is preferred but not essential.
  • Confident using a computer and handheld devices.
  • Good analytical thinking skills.
  • Strong attention to detail.

You will learn most of these key skills while you are completing an energy assessor training course. You should also try to build as much relevant work experience as possible. This will expand your skills and knowledge and give you a competitive advantage in the job market.

How much can I earn as a domestic energy assessor?

Domestic energy assessors earn an average annual salary of £29,000 in the UK. Domestic energy assessors can boost their average earnings by working overtime or offering their services on a self-employed basis.

Can I work as a self-employed domestic energy assessor?

Many domestic energy assessors are self-employed and work on a freelance basis. Being self-employed offers several perks including higher earning potential and greater flexibility over your work schedule. However, there are some disadvantages of self-employment e.g. you won’t receive employee benefits like sick pay or holiday pay. Weigh up the pros and cons and decide whether self-employment is the best option for you.

What career advancement opportunities are available?

As a domestic energy assessor, you could move into the role of a commercial energy assessor and carry out assessments of commercial buildings like offices and warehouses. You will likely have to complete additional training to move into this role e.g. a Level 4 Certificate in Non-Domestic Energy Assessment.

Experienced energy assessors can also transition into assessor training and become responsible for training the next generation of energy assessors.


Becoming a domestic energy assessor is an increasingly popular career choice thanks to the new focus on sustainability. There is an increasing demand for qualified energy assessors throughout the UK and there is plenty of work opportunities for domestic energy assessors.

The good news is, training to become a domestic energy assessor is relatively straightforward and affordable. Follow the steps above if you want to become a qualified domestic energy assessor in the UK.