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Merthyr Tydfil · Mid Glamorgan

Cavity wall insulation for landlords in Merthyr Tydfil

From the first survey to the paperwork, cavity wall insulation for landlords in Merthyr Tydfil 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 Merthyr Tydfil

Covering Merthyr Tydfil and the CF47 district. Tell us about the property and we will arrange a free survey and a fixed price.

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Cavity wall insulation for landlords for Merthyr Tydfil properties

If your property is in Merthyr Tydfil or the CF47 district or nearby Aberdare, Rhondda and Tonypandy, it is within our Mid Glamorgan coverage. It is around 19 miles north-east of Bridgend.

Blocks of flats in Merthyr Tydfil are surveyed as a whole, because the cavity runs across every flat in the building. Per-address photo records for Merthyr Tydfil properties make compliance files and EPC updates straightforward.

Exposure matters for every cavity wall. Parts of Mid Glamorgan face some of the heaviest wind-driven rain in the UK, especially exposed coastal and upland sites. Here the survey is stricter: some walls suit only certain certified systems, and some should not be filled at all.

On the rules side, in Merthyr Tydfil filling a cavity is notifiable work under the Building Regulations as they apply in Wales, usually self-certified through a competent person scheme.

Funding in Wales

In Wales, Warm Homes Nest offers free improvements to eligible low-income households, and ECO4 runs to 31 December 2026.

Sources: Welsh Government: warmer and more energy efficient homes (July 2026); GOV.UK: extending the ECO4 end date, government response.

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 Merthyr Tydfil

  • Per-property result sheet
  • Batch surveys
  • Tenant-friendly booking
  • Photo records for your files

Guide prices for Merthyr Tydfil

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 Merthyr Tydfil property:

  1. Get in touch

    Online, by phone or WhatsApp, whichever suits you.

  2. Survey visit

    The surveyor checks each wall and looks into the cavity where needed.

  3. Your result in writing

    What we found, what it means, and a fixed price if work is needed.

  4. Booked work

    Carried out by the installer named on your quote, with their scheme registrations.

Last reviewed 19 October 2026.

Cavity wall insulation for landlords in Merthyr Tydfil: questions

Do you cold-call in Merthyr Tydfil?

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

Are there grants for insulation in Merthyr Tydfil?

In Wales, Warm Homes Nest offers free improvements to eligible low-income households, and ECO4 runs to 31 December 2026. We cannot promise funding, but we will point you to the right official route.

Is my Merthyr Tydfil home too exposed for cavity insulation?

Parts of Mid Glamorgan get some of the heaviest wind-driven rain in the UK, so the survey is stricter and some walls are better left unfilled. The survey records the exposure of each wall before recommending a material, or recommending against filling.

Do you cover Merthyr Tydfil?

Yes. Merthyr Tydfil and the CF47 postcode district are within our Mid Glamorgan coverage, along with nearby Aberdare and Rhondda.

Nearby towns

Book a free survey in Merthyr Tydfil

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