Whole-house retrofit · Northern Ireland

Whole-house retrofit in Lisburn and Castlereagh

We deliver whole-house retrofit works on social homes in Lisburn and Castlereagh, sequenced fabric first and coordinated with your retrofit assessor and coordinator.

Whole-house retrofit in Lisburn and Castlereagh is carried out by our site teams and specialist subcontractors under our management, with photographs, notes and certificates on every job. Social homes in Lisburn and Castlereagh are owned by the Northern Ireland Housing Executive and housing associations.

Lisburn and Castlereagh at a glance

Council: Lisburn and Castlereagh City Council
Nation: Northern Ireland
Council homes: Housing Executive and housing associations
Housing standard: Decent Homes Standard (NI)
Damp and mould timescales: No timescale law found
Population: 146,452 (2020 estimate)
Regional price factor: 0.90 (our estimate)

In Northern Ireland the Housing Executive, not the council, is the public landlord. Population: ONS 2020 mid-year estimate.

Who owns the social homes in Lisburn and Castlereagh?

In Northern Ireland, councils are not housing authorities. Social homes in Lisburn and Castlereagh are owned by the Northern Ireland Housing Executive and by registered housing associations, which are regulated by the Department for Communities.

What do we cover in Lisburn and Castlereagh?

Windows and doors, draught-proofing and airtightness details
Ventilation upgrades to match the improved airtightness
Heating: heat pumps, controls and emitters where specified
Solar PV where it is part of the design
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 Lisburn and Castlereagh?

Building work in Northern Ireland is controlled by the Building Regulations (Northern Ireland), administered by council building control.

Decent Homes Standard (NI) · More about whole-house retrofit

What does whole-house retrofit cost in Lisburn and Castlereagh?

Our guide range for whole-house retrofit towards EPC C in Lisburn and Castlereagh is £12,150–£21,250 per home. That is the UK range of £13,500–£23,600 (published figure) adjusted by a regional cost factor of 0.90 (our own estimate); 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 Lisburn and Castlereagh

Who is the social landlord in Lisburn and Castlereagh?

Which housing standard applies in Lisburn and Castlereagh?

In Northern Ireland, the Housing Executive and registered housing associations work to the Northern Ireland Decent Homes Standard, which the Department for Communities consulted on revising in 2025–26.

Can you take on whole-house retrofit in Lisburn and Castlereagh as a subcontractor?

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