Grosvenor has invested in Aeroseal, a climate technology company specialising in air sealing solutions, as part of its ongoing focus on improving building performance and accelerating retrofit across its UK property portfolio.

The investment reflects Grosvenor’s focus on addressing practical operational challenges within existing buildings, particularly in heritage and complex assets where improving performance can be disruptive, time-intensive and costly. Aeroseal’s technology offers a scalable approach, enabling faster, measurable guaranteed improvements in airtightness and energy efficiency with minimal impact on occupiers and day-to-day operations.

As part of the investment, Grosvenor is working with Aeroseal to evaluate and deploy the technology across selected buildings, with potential for wider application over time. A recent trial in London demonstrated the effectiveness of the approach, delivering 78.5% improvement in airtightness within a live operational environment.

The investment sits within Grosvenor's wider retrofit-first strategy, which prioritises extending the life of existing buildings over demolition and rebuild, reducing embodied carbon while modernising properties for future use. Backing technologies such as Aeroseal is a practical expression of that strategy, testing new solutions against real business needs before scaling them, in support of Grosvenor's ambition to deliver measurable improvements in energy use and carbon emissions, and its goal to be a 1.5°C-aligned business.

Andy Doyle, Director of Operations, Innovation & Strategy at Grosvenor, commented: “Improving the performance of existing buildings is a key priority for us, both from a commercial and environmental perspective. We’re excited to invest in and work with Aeroseal to explore how technologies like this can be deployed at scale to deliver measurable improvements across our portfolio.”

Amit Gupta, CEO, Aeroseal, said: “Grosvenor’s investment is a strong validation of the critical role building performance technologies will play in decarbonizing existing buildings. We’re excited to support their commitment to improving asset performance across the UK. We see this collaboration as a model for how institutional real estate and climate technology can work together to drive meaningful impact.”     

Grosvenor’s Venture Investment team has to-date invested £10 million in a wide range of scale-up businesses and venture capital funds that support the delivery of its commercial and sustainability goals. All companies within the portfolio have been tried and tested by teams across Grosvenor and contribute to strategic priorities. Previous investments include noa, Europe’s largest venture capital firm focused on the built environment; Wint, an AI-powered specialist in water management and leak mitigation; and QFlow, a construction waste and materials tracking programme.

ENDS

For more information, please contact Fay Rajaratnam at fay.rajaratnam@grosvenor.com 

About Grosvenor

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Grosvenor is an international organisation whose activities span urban property, food and agtech, rural estate management and support for philanthropic initiatives.

We are a values-led business which represents the Grosvenor family and share a common purpose - to deliver lasting commercial, social and environmental benefit - addressing today’s needs while taking responsibility for those of future generations.  

With a track record of over 340 years, we work to improve urban property and places in many of the world’s leading cities, promoting sustainability within the built environment and enhancing the wellbeing of customers and communities. 

Our UK property business supports c1,000 businesses and tens of thousands of residents and workers across London’s West End each day. We also invest in, create and manage sustainable neighbourhoods across England. As a 1.5oC aligned company, pioneering change and new ways of thinking about property we aim to ensure our places benefit both people and the planet over the long term.

About Aeroseal

Aeroseal is a climate technology company that delivers measurable improvements in building performance through proprietary air sealing solutions for both duct systems and building envelopes. Founded on patented technology developed at Lawrence Berkeley National Laboratory and the University of California, Aeroseal’s solutions have been deployed in buildings across 35+ countries, delivering verified reductions in air leakage, energy consumption, and carbon emissions. Aeroseal is headquartered in Miamisburg, Ohio, USA, with operations across North America, Europe, and beyond. www.aeroseal.com.