Internal wall insulation · Dyfed
Internal wall insulation in Ammanford
If you're planning internal wall insulation in Ammanford, start with a free survey: we measure, check the walls and confirm planning and building control for your address. For terraced homes in Ammanford with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey in SA18 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Ammanford
Postcode, service and a phone number is all we need.
What the job covers
- Can be done one room at a time during a renovation
- Loses roughly 50–100mm per insulated wall
- Needs careful detailing at floor joists, reveals and corners
- Keeps the outside of the house exactly as it is
Homes and walls in Ammanford
As well as Ammanford itself, we quote in Gorseinon, Llanelli and Neath. It's roughly 11 miles from Ammanford to Llanelli, the largest town in Dyfed. West Wales has a high share of older solid-walled and stone homes, many in exposed coastal or rural settings.
Parts of Dyfed fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
We plan internal insulation in Ammanford homes room by room so you keep the rest of the house usable.
- Postcode district
- SA18
- County or area
- Dyfed
- Nation
- Wales
- Nearby
- Gorseinon, Llanelli, Neath, Swansea
Approvals in Wales
Planning isn't usually involved with internal insulation. Building control is, once more than half of a wall is treated, and listed buildings need listed building consent.
What are the options for internal insulation?
- Insulated plasterboard — PIR or phenolic foam bonded to plasterboard, fixed to the wall and skimmed. Thinnest option.
- Insulated stud wall — a timber or metal frame filled with insulation, with a vapour control layer and plasterboard. Takes more space but runs services easily.
- Wood fibre and lime — breathable boards finished in lime plaster, for older walls that need to manage moisture.
Internal wall insulation prices in Ammanford
| Item | Guide price | Notes |
|---|---|---|
| Insulated plasterboard, supplied and skimmed | £75–£110 per m²0% VAT | |
| Insulated stud wall | £90–£130 per m²0% VAT | |
| Typical bedroom, one external wall | £1,795–£2,9950% VAT | Including making good |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
What happens next
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Internal wall insulation in Ammanford: questions
What happens to my radiators and sockets?
They're taken off and refitted on the new wall face. Electrical work is done by a qualified electrician.
Is internal insulation cheaper than external?
Per m² usually yes, but the cost of moving fittings and redecorating narrows the gap on whole-house jobs.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
Do you cover Ammanford?
Yes — we survey and quote internal wall insulation in Ammanford (SA18) and nearby Gorseinon, Llanelli and Neath, with a fixed written price before any work starts.