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AirEx: The Smart Air Brick Fighting Fuel Poverty
How a 39-person startup is retrofitting UK homes to slash energy bills by 15%
In a market saturated with smart thermostats, AirEx is tackling the UK's energy crisis from the ground up—literally. Their smart air brick retrofit turns dumb ventilation into an active energy-saving system, reducing bills by up to 15% for homes with suspended floors.
"AirEx isn't selling a gadget—they're selling a retrofit revolution that pays for itself while fighting climate change."
The Hidden Market
AirEx targets a specific architectural flaw: suspended timber floors common in UK homes built before 1930. These floors leak 15-20% more heat than solid foundations, yet traditional air bricks offer zero control. With 2.4 million UK homes having suspended floors, AirEx addresses a massive retrofit opportunity that smart thermostats ignore.
Growth Story
Despite modest traffic (2,444 monthly visits), AirEx converts 50% through organic search—people aren't browsing, they're hunting solutions. Their keyword strategy reveals intent: 'airflow path under suspended floors' (140 monthly searches) shows they're capturing serious homeowners, not just curious browsers. With $6.9M in revenue and a lean 39-person team, they're proving that deep vertical focus beats broad horizontal plays.
The product is deceptively simple: a smart air brick that automatically closes during cold weather and opens when ventilation is needed. No complex installation, no central system required. It's a distributed network of intelligent vents that work independently, making it ideal for older buildings where retrofitting is complex and expensive.
- First-mover advantage in smart ventilation for suspended floors
- Direct alignment with UK's Net Zero 2050 targets and EPC regulations
- Hardware-as-a-service model with clear ROI for homeowners
- Trustpilot presence (3.4/5) indicates early customer validation
The Verdict: Hardware with a Mission
AirEx proves that climate tech doesn't need to be flashy—just smart, specific, and solving a real pain point for a defined market.
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AirEx Smart Ventilation Control
Keeping homes warm with smart airflow control. AirEx have created the world’s first smart air brick to reduce the home’s energy bills, helping to end fuel poverty and climate change with a simple building retrofit.
Keeping homes warm with smart airflow control. AirEx have created the world’s first smart air brick to reduce the home’s energy bills, helping to end fuel poverty and climate change with a simple building retrofit.
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Reviews (2)
Greatly improved underfloor insulation and comfort
Following a botched install from a previous supplier, Airex pulled out all the stops to redress the situation. Due to no fault of their own and wanting to put right my situation, they agreed to send out a different company to replace all of my units and correct my setup. It's incredibly rare to see companies take on this level of ownership over their customers, and I consider myself lucky to be a customer of theirs. Thank you Airex and team!
Good product poor customer service
I have 14 of these smart vents under my bungalow. It is a clever way to reduce heat loss throught the floor iin homes usch as mine where the void unnder the floor is too shallow to enable a retrofit of under floor insulation. The initial cost is high for a bungalow around £2500. I believe the system s working but there s no way of knowing without opening up the front grills on a cold morning. A major disappointment is the very poor customer support from Airex. They say that they wll contact one when there is a problem, but they have't once done this. My installerhad informed me, though now Airex have cut back how much information he receives and so cannot tell me if the vents are opeong and shutting as promised. In the early days I asked Aiirex if I could have a brief summary of performance (they have all the data) but they said it was too much trouble for them. Ths contrasts wth other technology I have where I can monitor n real tme my heat pump, solar panels and batteries on apps. Arex need to get there act together and creat an app. Thye seem interested in larege projects and neglect individual customers and their installers.
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About airex.tech
Keeping homes warm with smart airflow control. AirEx have created the world’s first smart air brick to reduce the home’s energy bills, helping to end fuel poverty and climate change with a simple building retrofit.
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airex.tech uses 18 technologies across their website including YouTube Embed, Adobe Fonts, HSTS, and more.
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airex.tech receives approximately 2.4K monthly visitors and ranks #6,217,401 globally. The website has a bounce rate of 45% with visitors viewing an average of 2.1 pages per visit. Users spend an average of 0:46 on the site.
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