Whole-house retrofit · Wales

Whole-house retrofit in the Isle of Anglesey

Retrofit programmes in the Isle of Anglesey work when insulation, airtightness and ventilation are planned together. We install to the design your coordinator signs off.

We take on whole-house retrofit in the Isle of Anglesey for Isle of Anglesey County Council, housing associations and supported housing providers, managing every trade ourselves and working to the timescales in your order. Isle of Anglesey County Council still owns council homes here, alongside housing association stock.

Isle of Anglesey at a glance

Council: Isle of Anglesey County 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: 70,440 (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 the Isle of Anglesey?

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

What do we cover in the Isle of Anglesey?

Coordination with your retrofit assessor and retrofit coordinator
Fabric measures: external, internal and cavity wall insulation, loft and floor insulation
Ventilation upgrades to match the improved airtightness
Heating: heat pumps, controls and emitters where specified
Resident liaison through a disruptive programme

How do we deliver it?

We do not treat a measure in isolation. If the design adds insulation and airtightness, we make sure the ventilation upgrade is in the same programme, because condensation is the most common retrofit failure.

Which rules apply in the Isle of Anglesey?

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 whole-house retrofit

What does whole-house retrofit cost in the Isle of Anglesey?

Our guide range for whole-house retrofit towards EPC C in the Isle of Anglesey is £12,550–£21,950 per home. That is the UK range of £13,500–£23,600 (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 whole-house retrofit in the Isle of Anglesey

Does Isle of Anglesey County Council still own council homes?

Do you also work near the Isle of Anglesey?

Yes. We take on whole-house retrofit across Wales, including Conwy, Gwynedd, Denbighshire and Flintshire, and in every other UK nation.

Can you take on whole-house retrofit in the Isle of Anglesey as a subcontractor?

Yes. Main contractors working for social landlords in the Isle of Anglesey can engage us as a tier-2 subcontractor for whole-house retrofit, working under their systems and their client's specification.