Why Flutter Shutter™ Works

Save Up To £200 Per Year*
Cut heat loss through your windows and lower your annual energy bills.

Improve EPC Ratings
Boost your property’s energy performance and support a stronger EPC score.

Comparable To Triple Glazing
Independently tested to deliver thermal performance in line with modern glazing.

Heritage Friendly
Improve efficiency while preserving the character and original features of your property.

Reduce Overheating
Manage solar gain in summer and retain warmth in winter for year-round comfort.

Preserve Existing Windows
No need to rip out or replace your current windows — simply enhance what’s already there.
Trusted and Recognised

UK Patented

TrustMark Registered

DESNZ Recognised

BRE Tested
Every claim we make is backed by testing, recognition, and accreditation you can rely on. When you choose Flutter Shutter™, you choose a solution that’s been proven to perform.
Find the Right Path for Your Property
Flutter Shutter™ suits a wide range of properties and needs. Choose the route that best suits you.
Homeowners
Premium comfort and energy efficiency. Enjoy a warmer home, lower bills, and better temperature control — all while keeping the windows you already love.
Heritage Properties
Protect original features whilst improving performance. Flutter Shutter™ lets you upgrade thermal efficiency without compromising the period character of your property — ideal where window replacement isn’t an option.
Housing Providers
Deliver retrofit outcomes without replacing windows. Improve EPC ratings across your portfolio, reduce residents’ energy costs, and meet efficiency targets with minimal disruption.
Ready to Improve Your Windows the Smart Way?
Flutter Shutter™ gives you thermal performance comparable to triple glazing, a stronger EPC rating, and savings of up to £200 per year* — all without replacing a single window. Book a survey today and find out how much you could save.




