Level 3 Diploma in Plumbing

1. Plumbing Health, Safety and Professional Practice : Develops knowledge of safe working procedures, hazard identification, risk assessment, PPE, COSHH principles, manual handling, work at height, emergency procedures, site organisation, professional conduct, and responsible working practices within plumbing environments.

2. Plumbing Science and Technical Principles : Introduces the scientific and technical principles used in plumbing, including pressure, flow, temperature, heat transfer, measurement, basic mechanical principles, material properties, pipe sizing concepts, and the relationship between plumbing components and system performance.

3. Pipework Installation and Jointing : Develops practical knowledge of pipe measurement, preparation, cutting, bending, supporting, alignment, jointing and connection techniques for common plumbing materials, with emphasis on accuracy, workmanship, system integrity and appropriate installation methods.

4. Hot and Cold Water Systems : Covers the design principles, components, installation, storage, distribution, control and maintenance of hot and cold water systems, including water supplies, storage arrangements, outlets, valves, fittings, temperature control and prevention of contamination.

5. Sanitary Plumbing and Appliance Installation : Develops competence in installing and connecting sanitary appliances and associated plumbing components, including washbasins, sinks, baths, showers, toilets and related fittings, while considering usability, access, drainage connections and installation quality.

6. Drainage and Rainwater Systems : Covers above-ground drainage, connections to below-ground systems, waste pipework, traps, gradients, ventilation, rainwater disposal, inspection arrangements and common drainage defects, with emphasis on reliable flow and effective system performance.

7. Plumbing Inspection, Testing and Fault Diagnosis : Develops systematic approaches to inspecting installations, pressure and leakage testing, identifying defects, diagnosing faults, interpreting symptoms, carrying out corrective work, and verifying system performance after repair or installation.

8. Plumbing Systems, Efficiency and Integrated Project Practice : Brings together planning, installation, testing, commissioning, water efficiency, environmental considerations, technical documentation and customer requirements through an integrated plumbing project that demonstrates applied occupational competence.

• Develops a broad Level 3 understanding of professional plumbing practice.

• Covers both theoretical principles and practical plumbing applications.

• Builds knowledge of pipework, water systems, sanitary installations and drainage.

• Develops inspection, testing and fault-diagnosis capability.

• Strengthens health, safety and professional working practices.

• Supports progression into employment and higher-level plumbing or building-services studies.

• Provides an integrated project structure for demonstrating applied competence.

• Supports continuing professional development within construction and building services.

The qualification design reflects the current Level 3 occupational profile for plumbing, which includes planning, selecting, installing, servicing, maintaining and commissioning plumbing systems.

This qualification is suitable for:

• Learners seeking a structured Level 3 qualification in plumbing.

• Plumbing trainees developing occupational knowledge and practical skills.

• Construction workers wishing to specialise in plumbing installation and maintenance.

• Facilities and maintenance personnel involved in building plumbing systems.

• Experienced plumbing workers seeking a formal qualification pathway.

• Learners progressing from Level 2 construction or plumbing studies.

Assessment Format: Written knowledge assessment, unit-based assignments, practical skills assessment and integrated plumbing project assessment.

Total Questions: 60 questions across the principal knowledge assessment, supported by practical and assignment-based assessment.

Passing Score: Minimum 60% in the written knowledge assessment, with all mandatory practical and project assessment requirements successfully completed.

Duration: 90 minutes for the principal written assessment, with practical and project assessments scheduled separately according to the delivery model.

Certification: Learners who successfully complete all required units and assessment components may be awarded the HiQual UK Level 3 Diploma in Plumbing, subject to the applicable HiQual UK approval and certification procedures.

To deliver this Qualification, HiQual UK Approved ATPs must demonstrate the capability to deliver, assess, and internally quality assure qualifications in line with recognised regulatory principles and the expectations of the Regulated Qualifications Framework (RQF).

Approved centres must operate effective systems to ensure the validity, reliability, fairness, consistency, and security of assessment.

1. Centre Recognition and Legal Compliance

Centres must be formally recognised by HiQual UK prior to the delivery or assessment of any qualification. To maintain recognition, centres must: Be a legally constituted organisation operating in compliance with applicable legislation and regulatory requirements. Demonstrate effective governance, management oversight, and clear lines of accountability. Comply with all HiQual UK policies, procedures, and conditions of centre recognition. Notify HiQual UK promptly of any material changes that may affect delivery, assessment, or internal quality assurance arrangements.

2. Resources, Facilities, and Learning Environment

Centres must ensure that sufficient and appropriate resources are in place to support learning and assessment. This includes: Learning environments appropriate to the mode of delivery, including classrooms and, where applicable, specialist or practical facilities. Access to learning and assessment resources that enable learners to meet qualification outcomes. Secure systems for managing learner data, assessment records, and certification claims. Arrangements that support equality of access and reasonable adjustments for learners where required.

3. Staff Competence and Occupational Expertise

Centres must ensure that all staff involved in delivery, assessment, and internal quality assurance are competent and suitably qualified. Centres must: Appoint tutors with appropriate subject knowledge, teaching competence, and relevant occupational or professional experience. Ensure assessors are trained and competent in applying HiQual UK assessment requirements and standards. Appoint a qualified Internal Quality Assurer (IQA) responsible for monitoring assessment practice and decisions. Maintain records of staff qualifications, experience, training, and continuing professional development (CPD).

4. Assessment Practice and Internal Quality Assurance (IQA)

Centres must operate robust internal quality assurance systems to ensure assessment integrity. Centres must: Ensure assessment is valid, fit for purpose, and conducted in line with HiQual UK requirements. Implement effective IQA procedures to monitor assessor performance and confirm the consistency of assessment decisions. Maintain accurate, complete, and auditable records of learner registration, assessment evidence, and outcomes. Carry out regular internal reviews and standardisation activities to support continuous improvement.

5. Integrity, Risk Management, and Malpractice

Centres must take appropriate measures to protect the integrity of assessment. Centres must: Maintain policies and procedures for the prevention, identification, and management of malpractice and maladministration. Ensure secure handling, storage, and retention of assessment materials and learner evidence. Report any suspected or confirmed malpractice to HiQual UK in accordance with published procedures.

6. Health, Safety, Safeguarding, and Learner Protection

Centres must provide a safe, inclusive, and supportive learning environment. Centres must: Comply with applicable health and safety and safeguarding legislation. Conduct risk assessments for learning activities, particularly where practical or technical work is involved. Maintain procedures to safeguard learner welfare and wellbeing.

7. Learner Information, Support, and Fair Treatment

Centres must ensure learners are informed, supported, and treated fairly. Centres must: Provide clear and accurate information on programme requirements, assessment methods, and certification. Ensure learners receive timely and constructive feedback on assessment outcomes. Operate transparent complaints and appeals procedures aligned with HiQual UK requirements. Manage learner information securely in compliance with data protection legislation.

Successful learners who achieve the HiQual UK Level 3 Diploma in Plumbing may progress to:

• Level 4 qualifications in Building Services Engineering, Construction Management, Plumbing or related technical disciplines.

• Advanced specialist training in plumbing, domestic heating, water systems, drainage or building services.

• Higher-level qualifications in construction, building services engineering, facilities management or technical supervision.

• Employment or career development in roles such as Plumber, Plumbing Technician, Maintenance Technician, Building Services Technician or Plumbing Supervisor, subject to employer and jurisdictional requirements.

• Continuing professional development and occupational certification leading toward advanced technical, supervisory or management responsibilities.