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Energy Efficiency
A-rated windows that maintain ideal indoor temperatures and can reduce heating bills by up to 25%.
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Double Glazing
Energy efficient windows that keep your home warm in winter, cool in summer, and reduce outside noise
⭐⭐⭐⭐⭐Rated 4.9/5 from 300+ reviews
10 Year Guarantee
Conservation Approved
Double glazing uses two panes of glass separated by an insulating gas-filled gap, reducing heat loss by up to 50% compared to single glazing. Average cost: £300–£800 per window installed. A++ rated double glazed units achieve U-values of 1.0–1.4 W/m²K and reduce outside noise by up to 80%. Harrington Windows installs double glazing across London, Hertfordshire, Essex, and Cambridge.
How Energy Efficient Is Double Glazing?
Double glazed windows provide exceptional thermal insulation, noise reduction, and security. With two panes of glass separated by an insulating gap, they create a more comfortable and energy efficient home.
Noise Reduction
Enjoy a quieter home with windows that significantly reduce traffic and environmental noise.
Enhanced Security
Multi-point locking systems and toughened glass provide superior protection for your home.
What Are the Benefits of Double Glazing?
Our double glazed windows are designed to improve your home's comfort, efficiency, and security while reducing your environmental impact.
Energy Efficiency
Our double glazed windows significantly reduce heat loss, keeping your home warmer in winter and cooler in summer.
Noise Reduction
Enjoy a quieter home environment with windows that reduce outside noise by up to 40% compared to single glazing.
Added Security
Double glazed windows provide enhanced security with toughened glass and multi-point locking systems.
Cost Savings
Reduce your energy bills by up to 25% with improved thermal insulation that minimizes heat loss.
What Do Our Double Glazing Installations Look Like?
Browse our collection of installed double glazed windows to find inspiration for your home.
Ready for Better Energy Efficiency?
Our energy efficient double glazed windows can help reduce your heating bills while making your home more comfortable and secure.
Frequently Asked Questions
Find answers to common questions about our double glazed windows.
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Pricing
What to expect
Double glazed windows typically cost £300–£800 per window fully installed. All our quotes include professional installation, VAT, and a 10-year guarantee.
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