Double Glazed Windows

Are your house windows looking a tad tired? Letting in the winter air? Playing havoc with your heating bills? We say it’s time for an overhaul…

At CTG Windows, we’ve been upgrading homes in the Cornwall area for 25 years. As local residents, we understand the styles and architecture of buildings in this magnificent area. We’ve the expertise to provide the perfect window replacement for every type of home – yours included.

We offer a staggering selection of new window styles, from tilt and turn, bay and bow, french and sash, and classical casement window. We’d love to talk you through the options so your doubled-glazed windows are exactly what you and your home have been begging for.Stunning windows that enhance your home and complement your way of life.


New window ranges

Make a style statement about you. Choosing new windows can be fun and creative, which is why we encourage our customers to get involved in the design process. Our stunning selection of colours, glazes and decorative finishes will allow you to express your personality while massively enhancing the aesthetics of your home. And because your windows will need to blend with the character of your residence (a manor house needs a very different treatment to a flat), we’ll steer you towards a look that complements your building.

Contact us, download the brochure or browse our website to find out what new windows you could have in your property.

Common questions

What type of window frame is best?

The answer to this question depends on lots of variables, including your budget, your house type and what you’re looking for with your new window frames. Timber frames look great with traditional home designs, but they require much more maintenance than other window frames, and they are prone to warping due to temperature changes. UPVC is an affordable, high performance option that now comes in many different finishes, including wood. Aluminium is sleek and durable, but will need you to dig a little deeper in your pocket to install them.

If you’re confused about which window frame would be best for your home, contact us today to talk to one of our experts.

What type of glazing should I get?

The standard glazing offered by most window companies is double glazing, although not all double glazing is created equal. We’ve found a 28mm unit with a 20mm gap between the panes to be the most energy efficient and noise reducing, so we offer this in all our double glazed windows. Single glazing is very inefficient and causes condensation, and is rarely installed in new properties.

If you live in a very cold area and want the best thermal efficiency on the market, then contact us to talk about triple glazing; with three panes of glass and two gaps, it is ideal for exposed rural properties.

Can I expect energy savings with my new windows?

This depends on the windows you had before, but in most cases, yes! If you are upgrading from single to double glazing, or double to triple glazing, then you will definitely notice a difference between the amount you spend on heating over the winter. If the windows you are replacing are fairly old, it is likely that the seal in their frames isn’t as efficient, so draughts might be slipping through and further reducing the efficiency of your windows.

Installing brand new, expertly installed double or triple glazing windows is likely to result in energy savings, but you’ll notice the difference most acutely if you are upgrading from single glazing.

What is the warranty for windows at CTG?

Our windows carry a written guarantee of up to 10 years*. This means that we are as invested as you are in giving you the best quality windows, installed to the highest standard. The guarantee may be for 10 years, but the majority of our windows will last much longer than this provided that they are cared for properly. When we install your windows, we’ll explain the best way to maintain them depending on where the windows are and the area you live in.

We put our customers first, so if you have any doubts or questions about your windows, please don’t hesitate to contact us.

*Conditions apply, please ask for details.

Can I match the design of my windows to my house style?

Your windows are an integral part of your home, and one of the first things people see when they visit you. To make sure your windows match your house style, we offer our windows in multiple different colours, styles and finishes so you can find one that fits!

Our standard uPVC windows come in a range of wood finishes, or you can choose from a range of colours with our Premium range; from an elegant sage green to bright cherry red. Whatever look you want for your house, talk to one of our experts today and we can find the window design that will match your house perfectly.

Do I really need new windows?

Windows don’t last forever, but it’s natural to want to get the most out of them each time you replace them. Rather than putting a fixed time limit on when you want to replace your windows, instead check your windows periodically to make sure they’re performing as they should. Some tell tale signs that you need new windows are:
– Your windows are hard to open or close
– There is condensation between the two glass panes
– You can see visible degradation of your window frame
– Your inner window pane feels noticeably cold to the touch
If you are answering yes to these questions, then it may be time for new windows.

0% APR representative on orders over £3,000

We have various low-cost finance options available. Get a quick quote and apply for finance at the same time.