Insulation
Enhancing the thermal performance of existing buildings through better insulation materials and techniques, as well as addressing draughts and inefficient windows and doors.
Heating & cooling
Replacing or upgrading outdated heating, ventilation, and air conditioning (HVAC) systems with more energy-efficient alternatives such as heat pumps, ensuring they are properly maintained.
Renewable energy
Installing or integrating renewable energy sources such as solar panels into existing structures.
Smart technology
Integrating smart building technologies and energy management systems to optimise energy use.

The UK government has recognised the importance of retrofitting existing buildings to meet its 2050 climate goals.
It has introduced various policies and initiatives, such as the The Great British Insulation Scheme and The Energy Company Obligation Schemes, to support retrofit projects and make them more accessible for homeowners and businesses – which is a huge opportunity for businesses that are PAS or MCS certified.