Draught-proofing for Carmarthen properties
Carmarthen is among the towns we cover in Dyfed, alongside Llanelli and Ammanford. Carmarthen is one of the main towns we cover in Dyfed.
Small measures like this are often among the cheapest per pound saved, and they suit Carmarthen homes of every age. In Carmarthen homes this is often done on the same visit as a cavity fill, which saves a second trip.
For regulations, if cavity wall insulation follows in Carmarthen, 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.
Ventilation still matters
Trickle vents, air bricks and extractor fans are there for a reason. We seal accidental gaps, not the ventilation your home needs to keep condensation down.
What is included in Carmarthen
- Loft hatch seals
- Door and window seals
- Letterbox and keyhole covers
- Skirting and floor gap sealing
Guide prices for Carmarthen
| Draught-proofing guide prices | Guide price |
|---|---|
| Whole-house draught-proofing | £195–£495 |
| Doors and loft hatch only | £145–£295 |
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.
How it works in Carmarthen:
Tell us about the property
Postcode, property type and what you would like done.
Free survey
Access, condition, existing insulation and ventilation checked.
Written result and price
What we recommend and a fixed price before any work.
Work and tidy-up
Fitted at an agreed time, with ventilation kept clear.