0800 088 6248
CavityWallInsulationUKCAVITYWALLINSULATIONUK.CO.UK
Cavity wall insulationCavity wall suitability surveyCavity wall insulation removalCavity insulation top-upDamp investigation after cavity insulationBonded polystyrene bead insulationBlown mineral wool insulationParty wall cavity insulationBorescope cavity inspectionCavity wall insulation for landlordsGrant and funding checkLoft insulation
Dunstable · Bedfordshire

Existing insulation and guarantee check in Dunstable

Need an insulation and guarantee check in Dunstable? You get the price first, then a visit, then the findings in plain English. 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.

Book an insulation check in Dunstable

Covering Dunstable and the LU6 district. Tell us about the property. We confirm the price before you book.

Enter a UK postcode.
Choose a service.
Enter your name.
Enter a phone number with at least 10 digits.
Enter a valid email address.

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 Dunstable properties

We cover Dunstable and the LU6 postcode district, including nearby Luton, Leighton Buzzard and Ampthill. It is roughly 17 miles south of Bedford.

A survey in Dunstable gives you facts before anyone drills: what the wall is, what is in the cavity and whether it is sound. Every inspection point in Dunstable is photographed and logged, so you have a record to show a buyer, lender or contractor.

Before any material is chosen, exposure is checked. Much of Bedfordshire 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.

As for paperwork, if cavity wall insulation follows in Dunstable, 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 Dunstable

  • Borescope checks
  • Visual check of walls and patched holes
  • Short written report
  • Guidance on tracing a guarantee

Guide prices for Dunstable

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 Dunstable:

  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 Dunstable: questions

Do you cold-call in Dunstable?

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

How soon can you visit in Dunstable?

We arrange dates when you get in touch. Availability varies through the year, so we give you real dates rather than a promise on the website.

Do you cover Dunstable?

Yes. Dunstable and the LU6 postcode district are within our Bedfordshire coverage, along with nearby Luton and Leighton Buzzard.

Do you work on rented homes in Dunstable?

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

Nearby towns

Book an insulation check in Dunstable

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