We surveyed 278 homes in 2023/2024

The CHEESE heatview surveyor team completed 278 surveys in the Bristol area. We had our first survey on the 1st of November, 2023 and the last one on the 23rd of April, 2024. We worked with seven heatview surveyors, five of them have been with us from previous seasons and we trained up two new surveyors.

We assessed the thermal performance of buildings from many different eras: the oldest residential dwelling was built in the 1860s and the newest in 2023. Rob, who completed the highest number of surveys last season, even surveyed a church! (Please note that we can only partially survey churches – especially those with thick walls – because it is impossible to heat up the thermal mass to give clear readings. We can conduct a full thermal assessment on light-structure churches, village halls etc.)

This interactive map shows the locations where we carried out our services.

Retrofit West Vouchers started towards the end of October. Of our 278 customers 267 used vouchers towards the cost. 

Originally, the vouchers covered the full £250 towards the cost of a survey. This changed 1st of February and the vouchers covered 2/3rds of survey or up to £250 whichever was lower.  

We completed 278 surveys across Bristol and Keynsham.    

Of those, we did 11 free surveys funded by the Megawatt grant. Boycee, one of our heatview surveyors, recommended two customers which lead to four bookings as customers referred in others. Rob, another of our surveyors, ran a project offering low-cost surveys for 11 homes in BS9 3 funded by Retrofit West and using vouchers.    

TYPE OF PROPERTY 

SIZE OF PROPERTY 

WALL CONSTRUCTION 

245 – Listed type of construction 

98 – Solid Brick  86 – Insulated Cavity 28 – Stone built  27- Uninsulated Cavity  

2 – Timber Clad  4 – Other/Mixed  18 – Didn’t know  13 – Blank records 

OWNERSHIP 

System didn’t have Owner Occupier in listing before January.    

The records were listed as ‘Other’ prior to January and Owner Occupier post January. 

We estimate that 96% of our customers were owner occupiers. 

ENERGY PROVIDER 

107 Octopus –  23 British Gas  – 11 EDF – 13  Ovo – 11 Ecotricity –  the rest is made up of Scottish Power, SSE, Npower, Good Energy 

105 blank and others, before January we didn’t have options in the system to include Octopus. Our estimate is (though this can’t be evidenced) circa 70%, if not higher are Octopus customers.

HEATING 

278 – 87% had Gas Central Heating as their primary heating.

WINDOWS 

94% of customers had double-glazing.  Sometimes an old front door or one window wasn’t. 5 were triple-glazed.

LOFT INSULATION 

0.7% didn’t have loft insulation. 20% to 25% had loft conversions or were boarded over and didn’t know whether it met current regulations or not.    

SURVEY AREAS 

TOP PERFORMERS  

Rob did 139 surveys – 50% of our surveys   

Dori did 66 surveys – 24% of our surveys 

Written by Tracey Kovacs