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.
Can I pay for my course in instalments? How does the payment plan work+
Yes. We offer flexible interest-free payment plans on most of our training courses, making it easier to spread the cost of your qualification.
To secure your place, you'll pay an initial deposit when you book your course. The remaining balance (including VAT) is then divided into two equal monthly instalments.
Your instalments are due on the same date in each of the following two months after your initial payment. For example, if you pay your deposit on the 10th of the month, your remaining payments will be due on the 10th of each of the next two months.
There are no hidden charges or interest when payments are made as agreed. We'll confirm your payment schedule before your course starts, so you'll know exactly when each instalment is due.
If you have any questions about our payment plans or need help choosing the option that's right for you, our team will be happy to assist before you enrol.
What happens after I purchase a course?+
Once you've booked your course, we'll guide you through every step of the process, making your learning journey as smooth and straightforward as possible.
Immediately after your purchase, you'll receive a confirmation email containing your booking details. Please check your inbox and your junk or spam folder, as confirmation emails can occasionally be filtered by your email provider.
The confirmation email will also contain a secure link to complete your enrolment. You'll be asked to upload any required documents so we can process your registration and prepare your course. Completing your enrolment as soon as possible helps us ensure everything is ready before your training begins.
If you've booked an online or self-study course, you'll also receive access to our Student Assessment Management System (SAMS), where you'll find your learning materials, assignments and course resources.
Before your course starts, we'll send you everything you need, including your course schedule, joining instructions and any preparation required. For online courses, you'll receive details of how to join your live training sessions. For classroom courses, we'll provide the venue information and everything you need for the day.
Once your training has been completed, you'll work through your assignments and portfolio. Your tutor will review each submission, provide feedback where necessary and sign off your work as you successfully complete each assessment.
After all of your assignments have been signed off, your portfolio is reviewed by our Internal Quality Assurer (IQA) as part of our quality assurance process. Once this has been completed, your qualification is claimed from the awarding organisation, and your certificate is typically issued within two weeks of the final sign-off.
After receiving your qualification, we'll guide you through the next steps, including joining an accreditation scheme, choosing any equipment you may need and preparing to start your career as a qualified Energy Assessor. Our support continues even after you've qualified, so you'll always have someone to turn to if you need advice or guidance.
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.
