Beyond ECO4: What Happens Next for Retrofit Installers?

For the last few years, much of the retrofit market has revolved around ECO4. It gave many installers a steady pipeline of work and helped build capability across the sector. But as ECO4 begins to wind down, the market is changing.

The good news is that demand for home energy improvements is not disappearing. In many ways, it is growing. The energy crisis fundamentally changed how homeowners think about comfort, running costs and energy efficiency, and many are now actively investing in their homes.

Recent research highlighted by Installer Online found homeowners are spending more on home improvements than ever before, with energy efficiency and comfort becoming major drivers behind purchasing decisions.

That shift is creating a growing able to pay retrofit market. And that changes the conversation for installers.

Instead of navigating funding rules and compliance paperwork, many homeowners are looking for practical upgrades that are affordable, quick to install and make a noticeable difference to comfort and heating bills.

That creates opportunities for simple, low disruption retrofit measures that can easily sit alongside heat pumps, insulation and solar PV.

One area gaining more attention is suspended timber floors. Millions of older UK homes still suffer from cold floors and draughts caused by permanently open air bricks and unmanaged underfloor airflow.

AirEx Floorvent was designed to tackle that problem differently. Using sensors and weather data, it automatically manages airflow beneath the home to help reduce unnecessary heat loss while still maintaining effective ventilation.

For installers, the appeal is practical. Floorvent typically installs in around an hour, requires no mains wiring and can be fitted alongside wider retrofit works with minimal disruption.

Projects typically see around a 12 percent reduction in whole house heat loss and SAP improvements of 2 to 4 points.

As heat pump installations continue to rise, reducing heat loss and lowering heating demand is becoming increasingly important. In one recent installation, reducing underfloor heat loss helped lower heating demand by 14 percent, allowing the homeowner to reduce their heat curve and improve overall heat pump efficiency.

For installers looking beyond ECO4, the opportunity may not simply be replacing one funding stream with another.

It is about building broader retrofit offers around comfort, performance and practical improvements that homeowners are increasingly willing to pay for directly.

The installers who do well in the next phase of retrofit are likely to be the ones offering straightforward, effective solutions that are easy to explain, quick to fit and deliver real world benefits homeowners can actually feel.