Description
delivered at our dedicated electrical training centre.
The Level 3 Diploma in Electrical Installations advances your knowledge and skills from the Level 2 Diploma.
You don’t need to be employed to take this course, but to become a fully qualified electrician you’ll need to complete either an apprenticeship or the NVQ and AM2 assessment once you’re working in the industry.
Please watch the explainer video and read all the content below. If you need more information or have any questions, our course advisers are here to help.
This course is for anyone who has completed the Level 2 Diploma in Electrical Installations and is working towards becoming a qualified electrician.
It builds on the knowledge and skills gained at Level 2 and is also suitable for those looking to move into related fields such as electrical engineering or electrical design.
This course helps you take the next step towards employment in the electrical industry.
To become fully qualified, you’ll also need to complete either an apprenticeship or the NVQ and AM2 assessment once you’re working in the sector.
If you do find suitable employment, you can transfer to one of our funded apprenticeships to complete your training.
You must hold the City & Guilds Level 2 Diploma in Electrical Installations (Buildings and Structures) (2365-02) to enrol online.
To be eligible for online enrolment, you must have completed this qualification within the last 5 years.
If you don’t hold this specific qualification, or if it was completed more than 5 years ago, please speak with one of our course advisers before booking. They’ll be able to advise you correctly based on your current qualifications and help you explore the best progression options.
Booking without the correct qualification may affect your ability to complete the Diploma and progress to further training, like the NVQ or an accelerated apprenticeship.
Advance your electrical training with the Level 3 Diploma in Electrical Installations
Build on your Level 2 knowledge and develop advanced skills in electrical theory, design, science principles, environmental technologies, inspection & testing, and fault-finding.
Delivered entirely in the evenings, this flexible blended course combines hands-on training, live online learning, and self-paced study—making it easy to fit around your work or other commitments.
Course Overview:
This intensive format is perfect for learners who want to fast-track their progress, gain advanced skills, and unlock new opportunities for further training or employment in the electrical industry.
This Level 3 Diploma builds on your existing knowledge and introduces more advanced topics in electrical science, design, and safety. You’ll explore inspection and testing, fault-finding, and emerging technologies—giving you the skills needed to move closer to becoming a qualified electrician.
301 – Understand the requirements of environmental technology systems
Learn how sustainable technologies are integrated into modern electrical installations.
302 – Principles of electrical science
Deepen your understanding of electrical theory, including AC/DC systems, inductance, and electromagnetism.
303 – Fault diagnosis and rectification
Develop the skills to identify and fix faults in electrical systems safely and effectively.
304 – Electrical installations: inspection, testing and commissioning
Master the techniques for inspecting and testing installations to ensure they meet industry standards.
305 – Electrical systems design
Learn how to design electrical systems for a range of environments, from domestic to industrial.
308 – Career awareness in building services engineering
Explore career pathways and gain insight into roles across the building services sector.
This programme is delivered over two evenings per week (18:00–21:00), following a structured format that blends advanced practical training with guided self-study. Here’s what you can expect:
10 live online sessions followed by 10 in-centre sessions to complete your project assignment.
Advance your technical knowledge from Level 2 as you explore:
These sessions combine classroom-based theory with practical design exercises, preparing you for real-world applications.
Complete online modules at your own pace between in-centre sessions, covering:
These modules reinforce your in-centre learning and prepare you for the next phase of the course.
8 live online sessions plus 2 in-centre sessions for assessments.
Deepen your understanding of electrical theory, including:
This module focuses on the science behind safe and efficient electrical installations.
20 in-centre sessions focused on practical skills.
Learn to carry out full initial verification of new installations or circuits, including:
These sessions are highly practical and prepare you for real-world fault diagnosis and system commissioning.
All sessions are scheduled in the evenings, making it easy to fit your training around work or other daytime commitments.
If you would like to discuss flexible options give us a call on 01293 529777 with your preferred dates.
This Level 3 Diploma completes your classroom-based electrical training. To become a fully qualified electrician, you’ll need to find suitable employment and complete your NVQ and AM2 assessment of competence. However, there are several other pathways you might consider:
You may also wish to consider the following CPD courses:
You will take a variety of practical assessments, short answer written assessments, project-based assessments and online multiple-choice exams.
Please note that you must bring photographic ID such as a passport or driving license with you in order to sit the assessments on this course. Resists are chargeable and can be booked via student services.
BOOKS
You will need to purchase the following textbooks in order to complete this course:
C&G 2365
Mathew has completed our City & Guilds 2365 Level 3 Diploma course at our Leeds electrical training centre. Mathew started a family business with relatives who were plumbing and joiners, realising they lacked electrical knowledge he chose to study and become an electrician.
After finishing the level 3 Diploma course Mathew then continued to complete the NVQ and Am2 assessments. To view more testimonials and case studies please click here.
We understand that some of the courses can be difficult to pay all at once, therefore, on our longer courses you can Pay As You Train, which means you pay week by week interest-free.
Pay As You Train is only available on our longer courses. Typically we will agree on a payment plan with you, where you will pay a deposit, and then pay a set amount 21 days before each class start date.
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This course can be completed 2 weeks on, 2 weeks off.
If you would like to discuss flexible options give us a call on 01293 529777 with your preferred dates.
Yes, you can. You will need to pay a deposit and we can arrange interest-free instalments over the length of your course.
Our Level 3 Diploma in Electrical Installations marks a major milestone in your journey to becoming a qualified electrician. You’ve now completed all the classroom-based knowledge and practical training required for industry readiness.
Here’s what comes next:
To become fully qualified, you’ll need to demonstrate your competence in a real-world setting. You can do this by:
Once you’ve completed both, you’ll be recognised as a qualified electrician and eligible to apply for an ECS Gold Card, which is widely accepted across the industry.
If you secure employment after your Level 3 Diploma, you can transfer onto one of our funded electrical apprenticeships. Because you’ve already completed the knowledge units, your apprenticeship will be shorter and more focused—allowing you to concentrate on building your portfolio and preparing for your end-point assessment (AM2S).
Many electricians choose to join a Competent Person Scheme (CPS) as it offers a convenient and cost-effective way to notify Building Control of completed electrical work. While registration with a CPS can bring obvious business benefits—such as increased credibility and streamlined compliance—it’s important to note that joining a CPS is not mandatory.
You can still carry out both notifiable and non-notifiable electrical work without being registered. However, if you do choose to join a CPS, you’ll need to have completed your full training, including:
Only once these are completed will you be eligible to apply for CPS membership.
One of the best ways to build real-world experience is by working with a local electrician or electrical business. This hands-on exposure helps reinforce your training and gives you valuable insight into the day-to-day work of the industry.
If you secure suitable employment at any stage of your training, don’t forget—you can switch to our funded apprenticeship route. Your existing learning will be recognised, meaning you won’t need to repeat any content and your apprenticeship duration will be shorter.
When you have completed your Diploma Level 3 you may choose to:
On completion of the Level 3 Diploma you may also wish to consider one of our bolt-on courses such as:
Our Electrical Training Centres
Phoenix House has raised the bar for electrical training centres in the UK. It’s situated east of Leeds, just off of the M1 / A1. This makes it easily accessible from Leeds, Sheffield, Hull, York, Harrogate and all over Yorkshire.
Our central London electrical training centre is conveniently located between Farringdon and City Thameslink stations. We have recently finished an exciting renovation of our London training centre meaning we can now deliver green skills training from London alongside our electrical training courses.
Our Portsmouth electrical training centre is based at Unit 8-10 The Boardwalk, Port Solent, Portsmouth, Hampshire, PO6 4TP.
Situated in the scenic location of Port Solent, our Portsmouth Training Centre offers lots of bright, light spaces to train in.
Our Birmingham centre is located at Fairgate House, 205 Kings Road, Tyseley, Birmingham, West Midlands, B11 2AA. With excellent transport links via the M6, M42, and A45, getting here is simple whether you’re commuting by car or public transport.
Located at 22–28 Queen Ann Road, Barton Hill, Bristol, BS5 9TX, our Bristol electrical centre is easily accessible via public transport and major road links including the M32 and A4320. We provide the ideal environment for both practical and theory-based learning across the South West of England.
delivered at our dedicated electrical training centre.