Thinking about upgrading your windows but not sure whether to go for single or double glazing? You're not alone. Choosing the right type of window can make a big difference in how warm your home feels and how much you spend on your energy bills. If you're looking to get more info on what each option means for your home, keep reading—this guide will break it down in a simple and friendly way.

Let’s start with single glazing. This type of window uses just one layer of glass. It’s been around for a long time and is often found in older homes. Single-glazed windows are cheaper upfront, but they don’t do a great job keeping heat inside during winter or blocking out noise. If you live in a mild climate or don’t mind a bit of extra sound from outside, single glazing might still work for you. But in most cases, it leads to higher heating and cooling costs over time.

On the other hand, double glazing uses two layers of glass with a small gap in between, usually filled with air or gas. This gap acts like insulation, helping to keep heat in during the winter and out during the summer. Double-glazed windows also lower outside noise, which can be a big plus if you live near a busy road.

Double glazing costs more up front, but you’ll likely save money in the long run through lower energy bills. Your home will stay more comfortable year-round, and you might even see less condensation on your windows in the morning.

Still unsure? Consider your location and how much weather affects your comfort indoors. If you’re dealing with cold winters, noisy streets, or high energy bills, double glazing is probably the better choice. But if you live in a warmer area or are on a tight budget, single glazing might be okay—for now.

Overall, choosing between single and double glazing comes down to what works best for your home and budget. Think about what’s important to you: comfort, cost, or both. Either way, knowing the difference helps you make a smarter decision.