Build Your Career inEnergy Assessment & Building Compliance
City & Guilds approved training in Domestic EPCs, Retrofit, SAP, Non-Domestic Energy Assessment and more. Flexible learning. Expert tutors. Real-world support.
Featured Courses
Our most popular Energy Assessor qualifications

Self-Paced Domestic Energy Assessor Course | Guided Online Level 3 DEA Training

3-Day Online Domestic Energy Assessor Course | Live Level 3 DEA Training

2-Day Weekend Domestic Energy Assessor Course | Live Online Level 3 DEA Training
Upcoming Course Dates
Live availability across all our courses

Why Choose Ozone Training
We're working Energy Assessors who train new assessors — not a generic training company.
- Run by practising DEAs since 2011
- City & Guilds approved courses
- Real-world tips, not just exam-pass content
- Spread cost in interest-free instalments
- 100% pass guarantee with free re-sits
What Our Learners Say
Real reviews from our Google profile
Frequently Asked Questions
Do I need prior experience?+
Will you help me secure work after I qualify?+
Yes. While we cannot guarantee employment, we're committed to helping you take the next step in your career after you qualify.
Our tutors and team will provide guidance on becoming a working Energy Assessor, including choosing an accreditation scheme, selecting equipment, understanding the EPC process and getting started in the industry.
We'll also share advice on the different ways you can find work, whether that's working for an established EPC company, estate agent, housing association, local authority or building consultancy, or becoming self-employed and building your own client base.
As part of our ongoing support, we regularly receive enquiries from companies looking for qualified Energy Assessors. Wherever possible, we're happy to introduce our successful learners to employers and businesses looking to recruit. We also provide guidance on setting up your own business, marketing your services and growing your client base if you choose to work independently.
Our goal is not only to help you gain your qualification, but also to give you the knowledge, confidence and support to build a successful career as a Domestic Energy Assessor.
Are there any hidden fees, registration fees or certification charges?+
No. We believe in transparent pricing, so there are no hidden fees.
The price you see for your course includes your training, learning materials, tutor support, assessment, internal quality assurance (IQA) and the cost of claiming your qualification certificate from the awarding organisation.
There are no separate registration fees, examination fees or certification charges added during your course.
Once you've qualified, you'll usually need to join a government-approved accreditation scheme before you can start producing Energy Performance Certificates (EPCs). The good news is that joining an accreditation scheme is free with almost all major schemes, although you'll be responsible for their ongoing membership or lodgement fees, which vary between providers. Many schemes also include additional benefits such as professional indemnity insurance, public liability insurance, software and technical support as part of their membership packages.
If a course includes any optional extras or third-party costs, these will always be clearly stated before you book, so you'll know exactly what is included with your course.
Ready to start your DEA career?
Speak to our team or book your course today. We'll guide you from enrolment to your first paid EPC.
