Windows & Doors Requirements

What are the criteria for replacing windows and doors under the grant?

To qualify:

• Existing windows must be replaced (e.g. single glazing or older double glazing)
• New windows must meet high energy performance standards (U-value of 1.4 W/m²K or better)
• Existing external doors must be inefficient to qualify for replacement
• Replacement doors must also meet a U-value of 1.4 W/m²K or better