Last updated on March 31st, 2022
Retrofit assessor cost
If you’re looking to improve the energy efficiency of your home, you’ll want to start by hiring a retrofit assessor to carry out an assessment of the property. In this guide, we look at the average retrofit assessor cost in the UK.

If you’re looking to improve the energy efficiency of your home, you’ll want to start by hiring a retrofit assessor to carry out an assessment of the property. In this guide, we look at the average retrofit assessor cost in the UK and what a retrofit assessment involves.
Retrofit assessors are specifically trained to ensure that all retrofit projects are compliant with government guidance, detailed in the PAS 2035 document published by the government to tackle the lack of retrofit projects underway.
Item | Range - Low | Range - High | Average cost |
---|---|---|---|
Retrofit assessment | £120 | £240 | £180 |
Our costs are ballpark averages – get a local tradesperson to quote now
How much does a retrofit assessor cost?
The average cost of a retrofit assessor is in the region of £120 – £240 for the initial retrofit assessment. The retrofit assessor cost includes a detailed assessment of your property and a report showing the findings.
What is a retrofit assessment?
An official PAS 2035 Retrofit Assessment is the first step in the process of carrying out retrofit installation work, in order to understand what measures are required to improve the energy efficiency of your property.
A retrofit assessment usually takes 1-2 hours to complete and should always be carried out by a fully qualified Retrofit Assessor, who will be able to assess the scope, risk level and action plan for your home. The results of the assessment will include a comprehensive report with three key parts:
- An energy report that outlines the current energy use of the property (this is not the same as an Energy Performance Certificate needed for tenanted properties)
- A condition survey that looks at any issues that could affect future energy efficiency improvement measures
- An occupancy assessment to reflect any identified patterns of energy use for hot water, heating, etc.
What’s included in the cost of a retrofit assessor?
As part of the retrofit assessment, a retrofit assessor will often carry out three separate tasks to collect sufficient information to produce their report.
1. Asking key questions
Your retrofit assessor will ask a series of questions about your property to ascertain how you use the property and identify any issues with energy that you’re aware of.
2. Home examination
The assessor will carry out a physical inspection of your home and review each room individually. This will involve measuring walls, taking readings, identifying the heating and hot water systems present, and potentially drawing a floor plan.
3. Insulation check
Insulation is one of the biggest factors that contributes to a property’s overall energy efficiency, so a retrofit assessor will nearly always take time to specifically check the type and level of insulation present – including loft insulation, where appropriate.
What happens after the retrofit assessment?
After your home assessment, your retrofit assessor will pass on all the findings to a retrofit coordinator who will put together an Improvement Plan for you. This will include specific recommendations for your home, based on heat loss calculations and other energy improvements that have been identified
Once you’ve reviewed the Improvement Plan, you can choose which of the suggested measures you want to implement. Your retrofit coordinator will then start work getting quotes from contractors, collating any designs, and planning the work schedule.
Retrofit assessor cost quotes
We always recommend obtaining at least three quotes from qualified retrofit assessors. Our request a quote feature is perfect for getting quotes – you post details about the job you want doing and we’ll send it out to local tradespeople in your area. Try it out – it’s quick and easy!
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