Energy Efficient Windows for Net Zero Homes
Transform your property into an energy efficient home with secondary glazing. Reduce energy bills by up to 30%, improve EPC ratings, and achieve your net zero carbon goals with our sustainable glazing solutions.

Proven Energy Performance Results
Real data from energy efficient secondary glazing installations
Average heating bill reduction with secondary glazing
Improved thermal performance from 2.8 W/m²K
Annual carbon footprint reduction per home
Improve from E to C rating typically
How Secondary Glazing Supports Net Zero Goals
Sustainable window solutions for the climate-conscious homeowner
Environmental Benefits
Carbon Footprint Reduction
Reduce home heating emissions by 25-40% through improved thermal efficiency
Preserves Original Windows
Sustainable approach - no waste from window replacement, extends existing window life
Recyclable Materials
Aluminium frames and glass panels are 100% recyclable at end of life
Lower Embodied Carbon
50% less embodied carbon than full window replacement solutions
Energy Efficiency Features
Low-E Glass Options
Advanced coatings reflect heat back into rooms, maximizing thermal efficiency
Thermal Bridge Elimination
Breaks thermal bridges, preventing heat loss through window frames
Draught Elimination
100% elimination of air leakage, preventing heat loss and cold spots
Insulated Air Gap
Creates insulating air layer between primary and secondary glazing
Improve Your EPC Rating
Secondary glazing can boost your Energy Performance Certificate rating
Before Secondary Glazing
• High heat loss through windows
• Poor thermal performance
• High energy bills
• Lower property value
After Secondary Glazing
• 60% reduction in heat loss
• Improved thermal efficiency
• 30% lower energy bills
• Increased property value
Energy Savings Calculator
See how much you could save on energy bills
Average Home
£720/year
Energy bill savings with secondary glazing
Payback Period
3.5 years
Typical investment recovery time
CO₂ Reduction
2.5 tonnes
Annual carbon footprint reduction
Government Energy Efficiency Incentives
Financial support available for energy efficient home improvements
Government vouchers up to £5,000 for energy efficiency improvements including secondary glazing.
Learn MoreEnergy Company Obligation funding for qualifying households to improve home energy efficiency.
Check EligibilityMany councils offer grants for energy efficiency improvements. Check your local authority website.
Find Local GrantsStart Your Journey to Net Zero
Get a free energy efficiency assessment and discover how secondary glazing can transform your home's performance.