Level 3 Certificate for Retrofit Assessor

The Retrofit Assessor plays a crucial role in the UK's efforts to reduce carbon emissions by enhancing energy efficiency and retrofitting millions of homes. The responsibilities of a Retrofit Assessor are outlined in the PAS 2035 standard, which governs the professional roles involved in retrofit projects.

The primary task of a Retrofit Assessor is to conduct property visits and surveys, providing essential data to inform decisions on which measures should be implemented. Working under the guidance of a Retrofit Coordinator, the assessor evaluates the building's condition, occupancy, and significance in alignment with the PAS guidelines.

Learning Outcome:

  1. Health & Safety / Risk Assessment: Prioritising the well-being of occupants through a comprehensive health and safety assessment, coupled with a rigorous evaluation of potential risks.

  2. Heat Loss / Thermal Bridges & U-Values: Delving into energy efficiency by addressing heat loss concerns, identifying thermal bridges, and optimizing U-Values to enhance the thermal performance of the structure.

  3. Ventilation: Focusing on indoor air quality and comfort by implementing effective ventilation strategies to ensure a healthy living environment.

  4. Heat Gains in a Dwelling: Analysing factors contributing to heat gains within the living space, optimizing insulation and shading solutions to maintain a comfortable temperature.

  5. Moisture / Types of Damp: Mitigating moisture-related issues through a thorough examination of different types of damp, implementing appropriate solutions to safeguard the structure and occupants.

  6. RdSAP / Occupancy Assessments: Conducting a robust RdSAP (Reduced Data Standard Assessment Procedure) and occupancy assessments to gauge the energy efficiency of the property and tailor recommendations accordingly.

  7. Advice & Condition Report: Providing informed advice and a comprehensive condition report, detailing findings, recommended actions, and a roadmap for achieving optimal energy efficiency and living conditions.

  8. Air Leakage Testing: Conducting precise air leakage testing to identify and address potential points of unwanted air infiltration, ensuring the integrity of the building envelope and enhancing energy efficiency.

  9. TrustMark Quality Assurance: Upholding industry standards and ensuring customer confidence by adhering to TrustMark's rigorous quality assurance processes. This includes a commitment to excellence in workmanship, customer service, and compliance with industry best practices.


Course Details

Course Type: Flexible

Level: 3

Duration: Flexible

Location: National

Category: Retrofit


Online: With our use of the latest technology, we offer online delivery options. This allows candidates to access course materials, lectures, and assignments remotely, using our learning management system (LMS) or online platform. This course includes pre-recorded video lectures, interactive modules, quizzes, and discussion forums. Participants can learn at their own pace and engage in virtual discussions with instructors and peers. 2 Days

Classroom: This traditional approach involves attending in-person classes at our training centre. In a classroom setting, instructors deliver lectures, conduct discussions, and provide hands-on exercises or case studies related to domestic retrofit assessment. This format allows for direct interaction with the instructor and fellow learners. 2 Days

Hybrid/Flexible Completion Window: This training option provides participants with a flexible completion window (up to 6 months), allowing you to finish the course at your own pace within an extended timeframe. Unlike the standard course duration, where completion is expected by the end of the course, the flexible completion window gives individuals the freedom to schedule their learning according to their availability and pace. This can be delivered either online or Classroom with an extended end date (normally reserved for funding). Flexible

  • Understanding the Principles of PAS2035, TrustMark and the Data Warehouse
  • Retrofit Energy Efficiency Advice
  • Understanding Retrofit Standards
  • Understanding Retrofit Risk Assessment and the Impact it has on Assessors
  • Understanding the Building Physiology
  • Occupancy Assessment
  • Carry out an Appraisal of a Dwelling
  • Produce a Condition Report for a Dwelling


Our costs for the Level 3 Certificate in Domestic Retrofit Assessment:

  1. Online - £475
  2. Classroom - £575
  3. Hybrid/Flexible - £875

The cost cover tutor fees, learning materials, assessment fees, registration fees, and any necessary resources or equipment. Some training providers may also offer options for instalment payments or discounts for early registration or group bookings. Additionally, it's worth considering any additional expenses such as travel, accommodation (if required for in-person training), or NetRet Also offers membership packages so click this link to check membership options.

Funding available in regions so always ask


Qualifications with NetRet Group

  • Fully Accredited and Qualifications
  • Direct Certificate Claims (Quicker Turnaround)
  • Industry Recognised Assessors and Trainers
  • On Line Support
  • Dedicated Assessor & Advisor
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Level 2 Award in Understanding Domestic Retrofit

Course Type: Flexible

Level: 2

Duration: Flexible

Location: National

Level 3 Award in Domestic Energy Assessment

Course Type: Flexible

Level: 3

Duration: Flexible

Location: National

Level 5 Diploma in Retrofit Coordination and Risk Assessment

Course Type: Blended

Level: 5

Duration: Flexible

Location: National

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