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Durham · County Durham

Cavity wall insulation for landlords in Durham

From the first survey to the paperwork, cavity wall insulation for landlords in Durham is handled by one team and one contract. For landlords, filling an empty cavity is usually one of the lowest-cost ways to improve an EPC rating.

Free survey in Durham

Covering Durham and the DH1 district. Tell us about the property and we will arrange a free survey and a fixed price.

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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.

Cavity wall insulation for landlords for Durham properties

We cover Durham and the DH1 postcode district, including nearby Chester-le-Street, Stanley and Bishop Auckland. Durham is one of the main towns we cover in County Durham.

Per-address photo records for Durham properties make compliance files and EPC updates straightforward. Work on Durham rented homes and blocks is booked around tenants and residents, with access arranged through your agent if you prefer.

Local weather affects which walls can be filled. 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.

On the rules side, in Durham filling a cavity is notifiable building work and needs a building notice or competent-person self-certification.

Funding in England

In England, ECO4 runs to 31 December 2026 and Warm Homes: Local Grant supports low-income households through councils.

Sources: GOV.UK: extending the ECO4 end date, government response; GOV.UK: Warm Homes Plan.

How we work with portfolios

One contact, one schedule. We survey in batches, return a simple sheet per address, and book installs around your tenants. Access arrangements and tenant notices are handled with your agent if you prefer.

What is included in Durham

  • Batch surveys
  • Fixed prices per address
  • Per-property result sheet
  • Tenant-friendly booking

Guide prices for Durham

Cavity wall insulation for landlords guide prices
Cavity wall insulation for landlords guide pricesGuide price
Detached house£2,295–£3,795
Semi-detached house£1,495–£2,495
End-terrace house£1,295–£2,195
Detached bungalow£1,295–£2,195
Semi-detached bungalow£895–£1,595
Mid-terrace house£795–£1,395

No VAT is charged on installing insulation in homes until 31 March 2027 (then 5%). 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 Durham property:

  1. Send your details

    A minute online, or call the free number.

  2. We check the walls

    Construction, cavity width, debris, damp and wind-driven rain exposure.

  3. You decide

    Plain-English result and a fixed price, with no pressure to book.

  4. Job done properly

    Holes made good, paperwork handed over, guarantee details confirmed.

Last reviewed 19 October 2026.

Cavity wall insulation for landlords in Durham: questions

Which building regulations route applies in Durham?

Durham 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.

Do you cold-call in Durham?

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

Do you cover Durham?

Yes. Durham and the DH1 postcode district are within our County Durham coverage, along with nearby Chester-le-Street and Stanley.

Is my Durham home too exposed for cavity insulation?

County Durham has a mix of moderate and more exposed sites, so each wall is judged on its own. The survey records the exposure of each wall before recommending a material, or recommending against filling.

Nearby towns

Book a free survey in Durham

Free survey with an install quote. Written result. Fixed price before any work.