Warm Homes Plan: How Retrofit Contractors Can Get Work in 2026

The UK Government’s Warm Homes Plan marks a major shift in retrofit delivery, creating significant opportunities for insulation contractors and PAS 2030 certified installers across England and Wales.

The UK Government published its Warm Homes Plan in January 2026, setting out a long-term programme to upgrade homes, cut bills and tackle fuel poverty, backed by £15bn of public investment.

For installers and insulation contractors, the direction is clear: demand is moving towards audit-ready, quality delivery, with stronger consumer protection and tighter oversight. If you can evidence consistent control, you will be better placed to win work through social landlords, local authorities, frameworks and DPS routes.

Why fabric first contractors should pay attention now

Even where homes ultimately receive solar, batteries or heat pumps, insulation and ventilation competence remains central because it:

• Improves comfort and bill savings quickly and reduces heating demand.
• Reduces damp, mould and performance risks that have driven scrutiny in recent schemes.
• Supports compliant, whole-house solutions where measures interact.

What the Warm Homes Plan covers

The Plan signals support for a broad package of measures, typically including:

• Fabric upgrades: loft, wall and floor insulation, draughtproofing, windows and doors (where justified)
• Low carbon heating: heat pumps and related upgrades
• Solar PV and battery storage
• Controls and optimisation

It also confirms that allocations will flow across the UK, including via devolved governments.

The transition period: what happens after March 2026?

Two points matter for contractor planning:

• Great British Insulation Scheme (GBIS) ends 31 March 2026.
• ECO4 is confirmed as extended to 31 December 2026, primarily to support an orderly close and remediation activity, rather than expanding targets.

This reinforces the need for strong installation quality and evidence, particularly for insulation measures.

England: where the work is likely to come from

For many contractors, the highest-volume routes are expected to remain:

• Local authority-led delivery, including Warm Homes: Local Grant (England-only).
• Social housing upgrade programmes, procured by housing associations and councils.
• Frameworks and DPS routes that enable call-off and mini-competitions for insulation and retrofit packages.

Government has also signalled the creation of a Warm Homes Agency, including transfer of expertise from Ofgem, to improve coordination and consumer protection, with establishment planned from 2027.

Wales: what matters most for contractors

In Wales, the practical pipeline is strongly linked to social landlords and local authority programmes, particularly the £98m Welsh Government Optimised Retrofit Programme (ORP), which supports a whole-house approach across social housing stock.

To be visible for Welsh opportunities:

• Track housing association and local authority procurement through Sell2Wales, the Welsh Government’s procurement portal.
• Build relationships with RSL asset teams and delivery partners who assemble supply chains for fabric measures.
• Be ready for evidence-heavy tendering that tests competence, quality control and resident protection.

Procurement: get “framework-ready”

A growing share of retrofit is being delivered through procurement vehicles that reward firms who can mobilise quickly and evidence compliance.

Separately, keep a live view of open and upcoming notices through:

• Find a Tender for higher-value public sector procurement.

What “getting on the radar” looks like in practice

If you want work from funded and social landlord programmes, you need two things: visibility and proof.

1) Visibility

• Register, set alerts, and keep your profile current on relevant portals (Sell2Wales, Find a Tender).
• Register on appropriate DPS routes where your measures align (especially insulation lots).
• Build direct relationships with housing associations, councils, and principal contractors delivering area-based work.

2) Proof (audit-ready delivery)

• Demonstrable quality control and site evidence, not just technical ability.
• Documented processes for design inputs, pre-start checks, ventilation considerations, on-site inspections, and completion evidence.
• A clean approach to subcontractor control, resident communication, and complaints handling.

This is where NetRet’s PAS 2030 members consistently outperform general installers because procurement is increasingly weighted towards assurance and evidence, not price alone.

For Contractors without PAS 2030

If you are aiming to win retrofit work under public and social landlord routes in 2026–2027, PAS 2030:2023 certification and TrustMark alignment are frequently expected for funded and consumer-protection-driven delivery.

NetRet supports contractors to:

• Achieve PAS 2030:2023 certification with practical, evidence-led onboarding
• Build audit-ready files and repeatable site controls
• Improve tender readiness for frameworks and DPS opportunities

If you want to discuss your quickest route to readiness, contact NetRet via certification@netretgroup.co.uk.

Useful Links:

Warm Homes Plan (policy paper): https://www.gov.uk/government/publications/warm-homes-plan

Warm Homes Plan press release: https://www.gov.uk/government/news/families-to-save-in-biggest-home-upgrade-plan-in-british-history

ECO4 extension decision: https://www.gov.uk/government/consultations/extending-the-eco4-end-date/outcome/extending-the-eco4-end-date-government-response-html

Welsh Government ORP: https://www.gov.wales/optimised-retrofit-programme

Sell2Wales (Welsh procurement portal): https://www.sell2wales.gov.wales/

Sell2Wales tender search: https://www.sell2wales.gov.wales/search/search_mainpage.aspx

Find a Tender (UK): https://www.find-tender.service.gov.uk/