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Grantham · Lincolnshire

Cavity wall suitability survey in Grantham

Grantham 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 Grantham

Covering Grantham and the NG31 district. Free with an install quote; standalone reports are priced before you book.

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Cavity wall suitability survey for Grantham properties

Our Lincolnshire coverage takes in Grantham (NG31) and nearby Stamford, Spalding and Lincoln. It is roughly 22 miles south of Lincoln.

Where a Grantham wall shows cold patches or damp, the survey targets those areas first rather than sampling at random. The written result for your Grantham property is plain English: what we found, what it means and what, if anything, to do next.

Wind-driven rain is the first thing the surveyor weighs up. Much of Lincolnshire sits in the more sheltered driving-rain zones of the UK, which widens the choice of fill. Exposed elevations, coastal sites and high ground still get checked wall by wall.

On the rules side, in Grantham 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 the surveyor checks

Wall construction and thickness at window reveals; cavity width and debris with a borescope; brickwork, pointing, render, sills, gutters and downpipes; signs of damp inside and out; air bricks and flues; joins with neighbours and extensions; and the exposure of each elevation to wind-driven rain.

What is included in Grantham

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

Guide prices for Grantham

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.

How it works in Grantham:

  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 Grantham: questions

Which building regulations route applies in Grantham?

Grantham is in England, so filling a cavity is notifiable building work and needs a building notice or competent-person self-certification. We confirm the route in writing on your quote.

Is my Grantham home too exposed for cavity insulation?

Much of Lincolnshire is in the more sheltered driving-rain zones, but exposed and coastal sites are still checked carefully. The survey records the exposure of each wall before recommending a material, or recommending against filling.

Do you cover Grantham?

Yes. Grantham and the NG31 postcode district are within our Lincolnshire coverage, along with nearby Stamford and Spalding.

Is there VAT on a cavity wall survey in Grantham?

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.

Nearby towns

Book a survey in Grantham

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