What's been improved
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What's been improved


Individual Measures

We call the changes or technologies you can implement in your home to improve energy efficiency measures and have identified twenty two different types of them.

Click on the image below to find out more about individual measures.

Air tightness

Design features


Energy Management

Extensions and Conversions

Glazing - Double and Secondary

Glazing - V High Quality

Heat pumps

Heating - Biomass and Wood

Heating - Boilers

Insulation - Floor & Ceiling

Insulation - Solid wall

Insulation - Other

Low E lighting


Outdoor Spaces

Solar PV

Solar Water

Ventilation, Heat Recovery

Water Management


For contractors and suppliers dealing with each measure, see our unique Trade directory on the Measure page showing only companies who have worked on or supplied Green doors homes.

See our individual homes' case studies for more details on individual measures used by householders.

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