You’ve been thinking about upgrading your old windows to brand new double glazed windows, but Is it really worth it? Will it really save you money in the long run? Here’s the lowdown:

Energy saving – Up to 18% of your homes heat could be lost through your windows. The following graphic breaks it down by U value. A U value is a measure of heat loss. The higher the U value the worse the thermal performance of your window, hence a low U value usually indicates high levels of insulation and heat retention.

If you swapped all the single-glazed windows in a three-bedroom house you would save around £165 a year on your heating bills – thats well over £3000 in 20 years!

“I live in a listed building that doesn’t allow double glazing. What can I do?” Secondary glazing is the next best thing. Secondary glazing works by fitting a second layer of glass inside your existing windows. It may not be as effective as double glazing, but it could still save you around £105 a year on your heating bills.

To sum up, the benefits of double glazed over single glazed windows:

1. Energy efficiency and reduced heating bills
2. Heat retention
3. Noise reduction
4. Increased security
5. Reduced condensation