Reviewed by Thermorite UK technical review
About 2 min read 306 words
Last reviewed 4 September 2026. This guide provides general information; a survey remains specific to the individual property.
Section 01
Start with what you know—not what you think you should know
You do not need original paperwork or a technical diagnosis to request a survey. Start with the rooms or walls that concern you, the postcode and a short description of what you have noticed.
If you know that cavity work was carried out previously, an approximate date or a note about what you were told can be useful context. If you do not know, say so—the survey process is designed for that situation too.
Section 02
Useful optional information
A previous report, photographs of a relevant external wall or paperwork connected with earlier work may help Thermorite understand the property history. The survey form lets you attach a small number of supporting files if you choose.
Only share information relevant to the property concern. Do not include financial, medical or other sensitive personal information in a document or free-text description.
Section 03
What happens after you send the request
Thermorite reviews the property postcode and the details provided, then contacts you to discuss eligibility, access and any appropriate next step. Sending a request does not confirm a visit, price or work scope.
This approach makes it easier to have a useful first conversation, whether you have a detailed history or only know that part of the home does not feel right.
Built fabric
A wall can look simple from the outside and still need careful context.
Construction, past work, access and visible conditions all matter when discussing what may be relevant.
Start with a free survey
Keep exploring
Related guides
Continue with a closely related homeowner guide, or take the next practical step when you are ready.
Which photos may help?
See the optional images and reports that may give useful property context.
Read the guideWhat happens after the request?
Understand the postcode review and contact steps before a visit is discussed.
Read the guideStart your survey request
Share the concern, postcode and any optional information that may help.
Start hereUseful answers
Questions about this guide
The answers stay property-specific and explain where an inspection has limits.
Free cavity surveys within 80 miles of Spalding
Concerned about existing insulation? Start with a free cavity survey.
Tell Thermorite what you are noticing and share the property postcode. The team will review the details, confirm eligibility and contact you about a visit.