Building Fabric
Building fabric upgrades that support every other decision
Review insulation, glazing, and airtightness topics to improve comfort, reduce heat demand, and build a stronger brief for heating and renewable upgrades.
Lower heat loss before sizing new systems
Insulation and airtightness improvements often change the economics of heating upgrades. Better fabric can cut bills, improve comfort, and reduce the size of the system you eventually need.
Quick route: connect fabric upgrades to bigger savings
Use this section alongside heating and energy-saving tools to build a more accurate project plan.
Browse energy-saving guidance →Comfort is part of the value, not just bill savings
Fabric improvements affect draughts, cold spots, condensation risk, and day-to-day comfort. Those non-bill outcomes are often why these projects matter most in practice.