Keep your house warm, save money and improve indoor air quality with Thermocill.
Thermocill has been designed, optimised and tested by world-class scientists.
By directing the air from your radiators up and against your window panes, our very discreet window board creates a warm curtain in front of your glazing.
Made from 100% recycled Nylon, saving waste going to landfill.
Our Product
Our Customers
Thermocill™️ is an innovative window board that creates a wall of warm air in front of windows located above radiators. Our customers include:
Social Housing
Providers & Developers
Local authorities, housing associations, and registered social landlords responsible for maintaining and upgrading housing stock.
Energy Efficiency
Retrofit Contractors
Companies or consortia delivering energy-saving retrofits under schemes such as ECO4, SHDF, or PAS 2035.
Private Homeowners
& Landlords
Individual homeowners or private landlords interested in reducing heating bills, improving EPC ratings, or enhancing tenant comfort.
Feature
8% Reduction of space heating bills
19% Reduction of time to heat up a room
100% recycled Nylon, which is plastic free
Easy installation
Improve air quality
Affordable
Awards
Northern Housing
Award 2025
Best Customer
Experience Innovation
Housing Innovation
Awards
Contact Us
Have a question? Please contact info@thermocill.com or call us on 0161 7061004 and one of our experts will be happy to provide guidance and support.