Is Double Glazing compulsory?

What is double glazing?

To an extent, the clue’s in the name: double glazed window units are made with two panes of glass instead of one. It’s the air gap between these two panes that makes them so effective.

The air gap is filled with trapped argon gas during the unit’s construction. Due to its density and insulating properties, argon minimises heat exchange through the window, as well as minimising noise and reducing condensation – all highly desirable attributes for keeping homes cosy, peaceful and protected.

Why do some houses not have double glazing?

Most houses that have single glazing were built before the government’s 2002 regulations came into effect. Older houses and period properties are more likely to have single glazing. 

New double-glazed windows are definitely an investment and will dramatically increase the energy efficiency of your property. However, it can seem like a big investment.

When considering the financial side of the decision, it’s important to look at the bigger picture. It may take a while for the savings on your energy bills to cover the installation costs, but those small monthly changes certainly add up in the long term – not to mention the added comfort and security you’ll enjoy in the meantime. 

Another worry that primarily concerns those who live in period properties is that replacing windows might compromise the building’s original character. Pair this with any additional complications with the installation process, and it can also be perceived as a job that’s much more costly and difficult than the final result is worth. Nowadays, there are more options to get around this than you think. Take a look at our heritage windows, which come in a variety of finishes and colours that include all the specs of modern windows while also being compliant with conservation and listed building regulations.

Then there’s the fact that they might actually retain too much heat. Even on Cornwall’s hottest summer days, this might sound crazy, but there are people who live in warmer climates that have no interest in making their home warmer than it needs to be. This is a rare concern for us here in the UK! 

It’s also worth noting that just as the initial cost is higher, any repairs to double glazing are likely to cost more, and be harder to carry out. For example, if the seal breaks, it could cause condensation between the panes – a problem so difficult to repair that it’s probably more cost-effective to replace the whole unit. An issue like this is easily avoided if the double glazing is installed by reputable professionals like ours in the first place. At CTG, all our windows are covered by a 10-year manufacturer’s warranty as well.

When do I need to replace my double glazing?

The tell tale signs that your double glazing is failing are water leaking through the frame, mist or condensation between the panes, cracks and chips in the glass, or cold draughts creeping into your home. 

Then there are the more subtle signs that emerge gradually, such as a reduction in thermal efficiency or soundproofing properties. No matter how well they’re installed, or how high quality the materials, there will come a time that this happens. The average lifespan for double glazing is about 20 years, or closer to 30 if they’re particularly high quality – so if you’re aware that this time is approaching, keep a lookout for any changes. 

Ready to make the switch? Our team will be happy to advise on the best options for your specific property, so feel free to get in touch – either online or by visiting our showroom in Hayle. We also have a number of online resources for you to check out at your convenience, like our brochures and our Design Your Solution feature.