Loft and cavity wall insulation · Wales
Loft and cavity wall insulation in Swansea
We install loft and cavity wall insulation in social homes in Swansea, after a survey that checks the wall and loft are suitable.
We take on loft and cavity wall insulation in Swansea for City and County of Swansea Council, housing associations and supported housing providers, managing every trade ourselves and working to the timescales in your order. City and County of Swansea Council still owns council homes here, alongside housing association stock.
Swansea at a glance
- Council
- City and County of Swansea 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
- 246,563 (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 Swansea?
City and County of Swansea Council is one of the 11 Welsh councils that kept their homes rather than transferring them. Housing associations also own social homes in Swansea, and we can work for both.
What do we cover in Swansea?
- Cavity wall insulation injection
- Extraction of failed or unsuitable cavity fill
- Loft insulation top-ups to current recommended depths
- Boarded walkways, hatch insulation and draught-proofing
- Pipe and tank insulation

How do we deliver it?
No home is filled without a suitability survey. A cavity that should not have been filled becomes a damp complaint, and then a disrepair case.
Which rules apply in Swansea?
PAS 2035:2023 sets the whole-house retrofit process (assessment, coordination, design, installation and evaluation), and PAS 2030:2023 covers installation. Most government-backed retrofit schemes require both, with TrustMark lodgement.
WHQS 2023 (Wales) · More about loft and cavity wall insulation
What does loft and cavity wall insulation cost in Swansea?
Our guide range for cavity wall insulation in Swansea 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 Swansea
Does City and County of Swansea Council still own council homes?
City and County of Swansea Council is one of the 11 Welsh councils that kept their homes rather than transferring them. Housing associations also own social homes in Swansea, and we can work for both.
Do you also work near Swansea?
Yes. We take on loft and cavity wall insulation across Wales, including Neath Port Talbot, Carmarthenshire, Bridgend and Rhondda Cynon Taf, and in every other UK nation.
Which housing standard applies in Swansea?
Social landlords in Wales work to the Welsh Housing Quality Standard 2023, which has applied since 1 April 2024, with all homes to comply by 31 March 2034.
Other works we carry out in Swansea
- Void property works
- Smoke, heat and CO alarm installation
- Housing disrepair works
- Acquisition and temporary accommodation refurbishment
- Bathroom replacement programmes
- Fire stopping and compartmentation
- Damp and mould remediation
- Roofing and rainwater goods
- External wall insulation
- Fire door installation and remediation
- Whole-house retrofit
- Communal area refurbishment