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Morden · Greater London

Existing insulation and guarantee check in Morden

An existing insulation check tells you whether a cavity is filled, what with, whether it looks dry and intact, and how to trace any guarantee. In Morden the visit is priced up front, and any follow-on work is quoted separately so you can choose.

Book an insulation check in Morden

Covering Morden and the SM4 district. Tell us about the property. We confirm the price before you book.

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We use your details only to answer this enquiry and arrange your visit, sharing them only with the registered installer we appoint for your job and the providers named in our privacy notice. No marketing lists, no cold calls.

Existing insulation and guarantee check for Morden properties

Morden is among the towns we cover in Greater London, alongside Mitcham, Wimbledon and Carshalton. It is roughly 8 miles south of London.

A survey in Morden gives you facts before anyone drills: what the wall is, what is in the cavity and whether it is sound. Buyers and sellers in Morden often book this check when a survey report or EPC raises questions about the walls.

Wind-driven rain is the first thing the surveyor weighs up. Much of Greater London 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, if cavity wall insulation follows in Morden, 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.

Tracing a guarantee

Many cavity fills carry a 25-year guarantee from the Cavity Insulation Guarantee Agency (CIGA). CIGA can confirm whether a property is covered and can issue a duplicate guarantee for a fee; at the time of writing that fee is £60 including VAT, and proof of ownership is required.

What is included in Morden

  • Damp signs inside and out
  • Guidance on tracing a guarantee
  • Visual check of walls and patched holes
  • Short written report

Guide prices for Morden

Existing insulation and guarantee check guide prices
Existing insulation and guarantee check guide pricesGuide 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.

The steps for an insulation and guarantee check in Morden:

  1. Tell us what is happening

    Postcode, property type and what you have noticed.

  2. Price agreed first

    We confirm the price before anyone visits.

  3. Visit and checks

    Photos and readings at the areas that matter.

  4. Findings in writing

    What we found and the options, each priced separately.

Last reviewed 19 October 2026.

Existing insulation and guarantee check in Morden: questions

Will you tell me if I do not need any work?

Yes. If the findings show nothing needs doing, or a cheaper fix such as clearing a gutter will do, we say so.

How much does an insulation and guarantee check cost in Morden?

Guide prices are shown on this page, and the price for your Morden property is confirmed before you book.

What will I get from an insulation and guarantee check in Morden?

A visit at an agreed price, photos of what we find, and a written summary in plain English. Any follow-on work is priced separately so you can choose who does it.

Do you cold-call in Morden?

No. We only come out when you have asked us to. If someone cold-calls offering free insulation, check before you agree to anything.

Nearby towns

Book an insulation check in Morden

Priced before you book. Findings in writing. No cold calls.