Existing insulation and guarantee check for Thornaby-on-Tees properties
Our County Durham coverage takes in Thornaby-on-Tees (TS17) and nearby Stockton-on-Tees, Billingham and Darlington. It is around 20 miles south-east of Durham.
Every inspection point in Thornaby-on-Tees is photographed and logged, so you have a record to show a buyer, lender or contractor. The written result for your Thornaby-on-Tees property is plain English: what we found, what it means and what, if anything, to do next.
Exposure matters for every cavity wall. County Durham has a mix of moderate and more exposed sites. Hilltop, coastal and west-facing walls take the brunt of wind-driven rain, so the survey records exposure for each elevation before a material is chosen.
For regulations, if cavity wall insulation follows in Thornaby-on-Tees, filling a cavity is notifiable building work and needs a building notice or competent-person self-certification.
Rules in England
Filling a cavity is notifiable building work and needs a building notice or competent-person self-certification if insulation work follows.
Sources: Planning Portal: cavity wall insulation and building regulations; CIGA: CWISC competent person scheme.
How to tell if a house already has cavity insulation
Look for a regular pattern of small patched holes in the mortar joints, often about a metre apart. Check the EPC, which may say 'filled cavity'. Ask the seller for a guarantee. The reliable answer is a borescope check, because patched holes can be from a fill that was later removed and EPCs are sometimes wrong.
What is included in Thornaby-on-Tees
- Borescope checks
- Visual check of walls and patched holes
- Guidance on tracing a guarantee
- Short written report
Guide prices for Thornaby-on-Tees
| Existing insulation and guarantee check guide prices | Guide price |
|---|---|
| Existing insulation and guarantee check | £145–£245 |
This work is not insulation, so it is normally standard-rated for VAT. Guide prices include VAT where it applies. Guide ranges only: the fixed price is confirmed in writing before any work starts, and anything that could not be seen at survey is agreed with you first.
How it works in Thornaby-on-Tees:
Get in touch
Online, by phone or WhatsApp.
Your price
Confirmed in writing before you book.
The visit
Carried out at an agreed time, with photos of what we find.
Your report
Plain English, with any follow-on work quoted separately.