AirEx, launched in 2020, develops the first smart air brick technology that uses sensors to monitor conditions and regulate airflow under floors to reduce heat loss. Its product aims to improve energy performance and resident health without requiring expensive or disruptive interventions. AirEx has established commercial partnerships with dozens of housing providers and Tier 1 contractors, including Warmworks, Peabody and Together Housing. To date the company reports over 39,000 smart air bricks installed across more than 6,400 homes, delivering an estimated £40 million in lifetime energy bill savings for households in fuel poverty and more than 40,000 tonnes of lifetime carbon emissions abatement. The company plans to use the £2.1 million funding to accelerate large-scale deployment, develop new products and expand into new partnerships and broader market rollout. AirEx positions itself to scale commercially alongside government retrofit funding and social housing upgrade programmes.

Total raised

$3M

Funding rounds

1

Latest round

Equity

Latest activity

May 2026