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
Can I claim my CPD hours from your modules?+
Yes. Ozone Group Training is an accredited CPD provider, and our CPD courses are approved by The CPD Group and listed on the CPD Register.
On successful completion of a course, you'll receive a CPD Certificate of Completion showing the number of CPD hours awarded. You can use this certificate as evidence of your Continuing Professional Development (CPD) when maintaining your membership with your accreditation scheme or professional body.
Our CPD courses are designed to provide practical, up-to-date knowledge that helps Energy Assessors and other built environment professionals stay informed about industry changes, legislation and best practice.
As CPD requirements can vary between accreditation schemes and professional organisations, we recommend checking their current requirements. However, because our courses are accredited by The CPD Group and published on the CPD Register, you can be confident that you're completing recognised, high-quality CPD training.
If you're unsure whether a particular course is suitable for your CPD requirements, our team will be happy to advise you before you enrol.
How do I become a working Energy Assessor after the course?+
Once you've successfully completed your qualification, there are just a few simple steps before you can start carrying out Energy Performance Certificates (EPCs) professionally.
Once you're accredited and insured, you'll be able to lodge EPCs on the national register and begin working as a Domestic Energy Assessor.
Many of our learners choose to become self-employed, while others work for EPC companies, estate agents, housing associations, local authorities or property consultancies. The qualification offers flexibility, allowing you to work full-time, part-time or alongside your existing career.
At Ozone Group Training, our support doesn't stop when you qualify. We'll guide you through the accreditation process, advise you on the equipment you'll need and answer any questions you have as you take your first steps into the industry. Our aim is to help you become not only qualified, but also confident and ready to start working as a Domestic Energy Assessor.
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.
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.
