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Seaham · County Durham

Cavity wall suitability survey in Seaham

Seaham properties get a written survey result: suitable, suitable after repairs, or not suitable. A cavity wall survey checks whether your walls can safely be filled and with what.

Book a survey in Seaham

Covering Seaham and the SR7 district. Free with an install quote; standalone reports are priced before you book.

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Cavity wall suitability survey for Seaham properties

If your property is in Seaham or the SR7 district or nearby Peterlee, Chester-le-Street and Durham, it is within our County Durham coverage. It is roughly 10 miles north-east of Durham.

A survey in Seaham gives you facts before anyone drills: what the wall is, what is in the cavity and whether it is sound. The written result for your Seaham property is plain English: what we found, what it means and what, if anything, to do next.

Every elevation is judged on its own exposure. 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, in Seaham 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.

What you get

A clear result: suitable, suitable after repairs, or not suitable. Where repairs are needed first, they are listed and priced separately so you can choose who does them. The survey is free when you are getting an install quote.

What is included in Seaham

  • Exposure assessment by elevation
  • Fixed install price where suitable
  • Cavity width and debris check
  • Photo-backed written result

Guide prices for Seaham

Cavity wall suitability survey guide prices
Cavity wall suitability survey guide pricesGuide price
Suitability survey with an install quoteFree
Standalone survey report (no install quote)£145–£245

The survey is free with an install quote. A standalone report is not insulation, so it is normally standard-rated for VAT; guide prices include VAT. 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.

What happens next for a Seaham property:

  1. Tell us about the property

    Postcode, property type and why you need the survey.

  2. Survey visit

    Walls, cavity, condition and exposure checked and photographed.

  3. Written result

    Suitable, suitable after repairs, or not suitable.

  4. Fixed price if you want work

    The survey is free when it is for an install quote.

Last reviewed 19 October 2026.

Cavity wall suitability survey in Seaham: questions

Is there VAT on a cavity wall survey in Seaham?

The survey is free when it is for an install quote. A standalone survey report is not insulation, so it is normally standard-rated for VAT, and the price you are quoted includes it.

Is the survey free in Seaham?

Yes when it is for an install quote. Standalone reports for Seaham buyers, sellers or landlords who do not need an install quote are priced before you book.

Do you work on rented homes in Seaham?

Yes. Landlords and agents in Seaham can book batch visits, and work is arranged around tenants.

Do you cover Seaham?

Yes. Seaham and the SR7 postcode district are within our County Durham coverage, along with nearby Peterlee and Chester-le-Street.

Nearby towns

Book a survey in Seaham

Free with an install quote. Written result for every wall.