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
What is the difference between the 3-Day Online DEA course and the 2-Day Weekend DEA course?+
Both courses cover exactly the same Level 3 Domestic Energy Assessor syllabus and lead to the same recognised qualification. The training materials, assignments, portfolio requirements and assessment criteria are identical.
The only difference is how the training is scheduled.
The comparison below shows the difference between the two delivery options.
| 3-Day Course (Weekdays) | 2-Day Course (Weekend) | |
|---|---|---|
| Days | Monday – Wednesday | Saturday – Sunday |
| Start Time | 9:30 am | 8:30 am |
| Finish Time | 3:30 pm | 5:30 pm |
| Daily Training Hours | 6 Hours | 9 Hours |
| Total Duration | 3 Days | 2 Days |
As you can see, the weekend course has longer training days, allowing us to cover the same syllabus in just two days. No topics are omitted or shortened, and every learner receives the same training materials, tutor support and guidance.
Whichever option you choose, you'll complete the same assignments and portfolio before achieving the same recognised qualification.
If weekdays are difficult because of work or other commitments, the 2-day weekend course offers a convenient way to complete your training without taking time off.
Is a Commercial Energy Assessor the same as a Non-Domestic Energy Assessor?+
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.
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.