Internal wall insulation · Clwyd
Internal wall insulation in Deeside
From Deeside to Hawarden, we price internal wall insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. We plan internal insulation in Deeside homes room by room so you keep the rest of the house usable.
- Free survey in CH5 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Deeside
Postcode, service and a phone number is all we need.
Part of every quote
- Keeps the outside of the house exactly as it is
- Insulated plasterboard, stud wall or breathable systems
- Sockets, radiators, skirting and coving are moved and refitted
- Needs careful detailing at floor joists, reveals and corners

Deeside: walls, weather and approvals
Surveys in Deeside also cover the surrounding CH5 district and towns such as Hawarden and Buckley. Deeside is about 11 miles from Wrexham. North Wales has many solid stone and slate-built homes, Victorian seaside terraces and post-war council estates.
Exposure to wind-driven rain varies across Clwyd: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
For terraced homes in Deeside with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Postcode district
- CH5
- County or area
- Clwyd
- Nation
- Wales
- Nearby
- Hawarden, Buckley, Flint, Wrexham
Permissions 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 risks with internal insulation?
Insulating inside makes the masonry colder, so moisture risk rises. Weak points are where floor joists bear into the wall, window reveals and corners. A condensation risk check for the build-up, a continuous vapour control layer where specified, and returning insulation into reveals deal with most of it.
Internal wall insulation prices in Deeside
| 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
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Internal wall insulation in Deeside: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
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.
Do you cover Deeside?
Yes — we survey and quote internal wall insulation in Deeside (CH5) and nearby Hawarden, Buckley and Flint, with a fixed written price before any work starts.