What does an A-rated window actually mean?

The Window Energy Rating measures how well a window retains heat. A-rated windows are highly efficient; we also offer A+ and A++ rated units for the very best performance.

Will new windows really lower my heating bills?

Yes. Replacing old single glazing or worn double glazing with modern A-rated units significantly reduces heat loss, which means your heating runs less often.

Do energy-rated windows reduce condensation?

They greatly reduce internal condensation. Warm-edge spacers and low-E coatings keep the inner glass warmer, so moisture is far less likely to form.

Can I get triple glazing?

Yes, triple glazing is available and offers excellent thermal and acoustic performance. We can advise whether it is the right choice for your home.

Energy Efficiency

A-rated energy-efficient windows in Hertfordshire

Cut your heating bills and keep your home comfortable all year with high-performance energy-rated windows, expertly fitted across Hertfordshire and North London.

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Detail of an energy-efficient sealed glazing unit

Overview

Lower bills, warmer rooms, less condensation

Energy-rated windows are graded much like household appliances, from A++ down to E. The higher the rating, the more efficiently the window keeps heat inside your home. Our standard windows are A-rated, with A+ and A++ options available.

Modern energy-rated glazing uses warm-edge spacer bars, inert gas fills and low-emissivity coatings to dramatically reduce heat loss. The result is a warmer home, lower energy bills and noticeably less condensation on cold mornings.

A to A++ rated options
Warm-edge spacer bars
Argon gas filled units
Low-E soft coat glass
Reduced condensation
Lower heating bills

The benefits

Why energy-rated windows pay off

A smart investment that improves comfort while it reduces running costs.

Lower energy bills

Less heat escapes through your windows, so your heating works less and costs less.

Year-round comfort

Warmer in winter and cooler in summer thanks to advanced glazing technology.

Less condensation

Warm-edge technology keeps the inner pane warmer, reducing misting and damp.

Quieter home

Energy-efficient sealed units also significantly cut traffic and outside noise.

Smaller carbon footprint

Using less energy to heat your home is better for the planet as well as your wallet.

Added value

Efficient, modern windows are a strong selling point for any home.

FAQs

Frequently asked questions

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