Loft and cavity wall insulation · Wales

Loft and cavity wall insulation in Cardiff

Loft top-ups and cavity fill are the cheapest fabric measures for most homes in Cardiff, provided the survey comes first.

We take on loft and cavity wall insulation in Cardiff for City of Cardiff Council, housing associations and supported housing providers, managing every trade ourselves and working to the timescales in your order. City of Cardiff Council still owns council homes here, alongside housing association stock.

Cardiff at a glance

Council: City of Cardiff Council
Nation: Wales
Council homes: Council-owned, managed by the council
Housing standard: WHQS 2023 (Wales)
Damp and mould timescales: No timescale law found
Population: 369,202 (2020 estimate)
Regional price factor: 0.93 (VOA 2026)

Council housing status from published stock transfer histories (11 transfer and 11 stock-retaining councils), not yet checked against StatsWales tables. Population: ONS 2020 mid-year estimate.

Who owns the social homes in Cardiff?

City of Cardiff Council is one of the 11 Welsh councils that kept their homes rather than transferring them. Housing associations also own social homes in Cardiff, and we can work for both.

What do we cover in Cardiff?

Cavity suitability survey, including borescope inspection
Extraction of failed or unsuitable cavity fill
Boarded walkways, hatch insulation and draught-proofing
Loft ventilation checks and remedial vents
Pipe and tank insulation

Loft and cavity wall insulation in a social home

How do we deliver it?

Where we extract failed fill, we inspect the wall ties and the cavity while it is open and report what we find.

Which rules apply in Cardiff?

WHQS 2023 asks Welsh social landlords to set a Target Energy Pathway for their homes by 31 March 2027, informed by a whole stock assessment.

WHQS 2023 (Wales) · More about loft and cavity wall insulation

What does loft and cavity wall insulation cost in Cardiff?

Our guide range for cavity wall insulation in Cardiff is £900–£2,500 per home. That is the UK range of £950–£2,700 (published figure) adjusted by a regional cost factor of 0.93 (VOA Rating Cost Guide 2026: 0.88–0.98); figures are before VAT where the source states it. Every job is priced after survey; specification, access and the condition of the homes will move the figure.

Questions about loft and cavity wall insulation in Cardiff

Does City of Cardiff Council still own council homes?

City of Cardiff Council is one of the 11 Welsh councils that kept their homes rather than transferring them. Housing associations also own social homes in Cardiff, and we can work for both.

Do you also work near Cardiff?

Yes. We take on loft and cavity wall insulation across Wales, including the Vale of Glamorgan, Caerphilly, Newport and Rhondda Cynon Taf, and in every other UK nation.

Can you take on loft and cavity wall insulation in Cardiff as a subcontractor?

Yes. Main contractors working for social landlords in Cardiff can engage us as a tier-2 subcontractor for loft and cavity wall insulation, working under their systems and their client's specification.