

Technical
The TCosy™ is a complete deep retrofit system for residential and commercial buildings. The system creates a void from foundations to roof, encapsulating the existing roof and external brickwork. This structure is then injected with insulation to create a highly energy efficient building envelope, with no thermal bridges, that improves the U-value of the walls and roof.
Walls | U-value: 0.11w/m2k |
Roof | U-value: 0.11w/m2k |
Floor | Perimeter U-value: 0.43w/m2k |
Insulated U-value: 0.13w/m2k | |
Windows & Doors | Triple glazed, passive-certified U-value: 0.78w/m2k |
Venitlation | High performance Mechanical Ventilation and Heat Recovery (MVHR). A full heat recovery ventilation system is installed with the new TCosy™ frame that recovers 84% of the heat from internal heating sources – supplying fresh, filtered air to all rooms. Incorporating the MVHR system within the frame, and penetrating only through the walls at high level, minimises internal disturbance and the loss of internal space. |
Heating | Reduction in heating demand of up to 90% |
Renewables | Photovoltaic panels (PVs) can be added to achieve Net Zero |



Benefits
Retrofitting can put an end to fuel poverty, damp and mould. It raises living standards. And it is an essential part of our journey towards net zero. Our innovative TCosy™ deep retrofit system improves the EPC rating of your property. There is no need to move. We work on the outside, while you – or your tenants – remain inside.
In terms of energy efficiency and living environment, many buildings are no longer fit for purpose and look tired but remain occupied. TCosy is more cost effective and quicker than a re-build, avoiding the temporary re-location of residents. The updated contemporary look lifts and enhances the local environment.
Ron Beattie, Founder and Managing Director, Beattie