ECO retrofit cliff-edge: pipeline and capacity risks explained for project teams
Reviewed by Joe Ashwell

First reported on The Construction Index
30 Second Briefing
Scrapping the Energy Company Obligation (ECO) from 31 March 2026 will remove £1.3bn a year of funding that currently delivers energy‑saving retrofits to about 5,000 UK homes a month, cutting average bills by £150 but leaving the replacement Warm Homes Plan still delayed and undefined. Retrofit firms including Domna, Net Zero Renewables and Eco Approach warn that without at least a 12‑month ECO extension, up to 10,000 installer, coordinator and surveyor jobs and thousands of low‑income households in fuel poverty face a cliff‑edge. For contractors and consultants, the main risk is a multi‑year hiatus in funded retrofit pipelines, eroding hard‑won delivery capacity.
Technical Brief
- ECO currently funds approximately £1.3bn of energy-efficiency construction works per year across Great Britain.
- Around 5,000 homes per month are having retrofit measures installed under ECO, implying ~120,000 homes over two years.
- Treasury’s ECO removal decision is tied to cutting a levy on gas and electricity bills from April 2026.
- Warm Homes Plan budget has been uplifted by £1.5bn to £14.8bn, but start date remains undefined.
- Domna, led by Anna Moore, is coordinating large-scale upgrades for housing associations, social landlords and councils.
- Net Zero Renewables in Newcastle employs and subcontracts over 35 skilled staff, mainly for ECO-backed solar installations.
- Eco Approach in Preston relies on ECO4 to support more than 150 staff and supply-chain roles annually.
- Industry concern centres on a discontinuity between ECO and Warm Homes Plan, rather than scheme consolidation itself.
Our Take
The £1.3bn/year ECO home-improvement flow is large enough that its March 2026 cut-off would rival a major regional construction downturn, which in our database tends to trigger consolidation among small retrofit contractors like Net Zero Renewables and Eco Approach rather than orderly redeployment.
With ECO operating across England, Scotland and Wales, any cliff-edge in 2026 will hit precisely the same labour and materials pools that UK infrastructure and housing projects draw on, raising the risk that skilled retrofit installers exit the sector just as other Policy-tagged decarbonisation schemes seek to ramp up.
The request for at least a 12‑month ECO extension signals that supply-chain planners see a hard stop in April 2026 as incompatible with multi-year training and tooling cycles; in previous UK Policy stories, similar scheme gaps have led to higher restart costs and slower delivery when successor programmes such as the Warm Homes Plan come on stream.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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