Double Glazing

Manufactured and fitted by your local experts in Devon

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Double Glazing

  • Double glazing is especially designed to put a halt to excessive heat loss, helping you save money on your household bills. It also is a great way to reduce outside noise, which is ideal if you live near a busy road or are just looking for some peace and quiet.

    Double glazing works by having two separate panes of glass in one window frame with a gap between them. We fill this gap with a gas called argon, which is denser than air – this works as an insulator, and the cold temperature of the outside window pane is not transferred to the inner pane. This also significantly reduces condensation on the inside of your windows, an issue often seen with single glazing.

    All our double glazed windows come with excellent energy saving ratings, and we also offer Super Energy Efficient glazing and triple glazing to help shrink your energy bills even further. Installing double glazing in your home is a great investment, saving you money on heating and also adding value to your home.

    Double glazing also adds an extra level of security to your home, as the thicker frames and double glass panels are harder to break. We use high security hinges and thermally toughened glass to make sure you feel safe in your home.

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    Lifetime Guarantee
    10-year manufacturer’s guarantee.

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    Tailor Made
    Classic windows tailor made to your exact specifications.

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    100% Satisfaction
    Award-winning customer service and after-care support.

  • Our industry-leading A+ rated double glazing provides ultimate safety and security, reduced noise pollution and high levels of thermal efficiency – saving you money on energy bills.

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    Flexible monthly payments

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    Interest free credit

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    Buy now / pay later

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    No finance required

If you’re thinking about replacing your windows with double glazing, we’re here to help! Contact us today for a free, no obligation quote, or visit your local showroom to talk to one of our experts.

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Is it worth replacing double glazing?

Double glazing usually has a healthy lifespan of 20 – 30 years. As windows age, they tend to become less efficient. If you’ve noticed that your windows don’t seem to be holding heat in like they once were, it might be worth replacing them.

If your double glazing is under 10 years old, however, it might be more cost-effective to just have them repaired — at AGS, we offer guaranteed repair for your windows if they aren’t performing to the highest standard. On the other hand, if you need to replace your windows completely and want the best energy rating available, you could ask one of our advisors about triple glazing.

What is the best gap for double glazing?

Double glazing insulates against noise and heat because of the built-in , gas-filled gap between the panes of glass. At AGS we fill the gap with argon — an inert, heavy noble gas.

A 28mm thick unit with a 20mm gap between the two panes of glass is our tried-and-tested design for most of our glazing, and we offer this as standard. We hope our glazing will help you save on your heating bills and help protect the environment, two things we care passionately about.

Does double glazing reduce condensation?

Yes! Condensation is caused by warm, damp air hitting a cold windowpane, causing the humidity in the air to condense on the glass. Modern double glazing is usually made from two glass panes separated by a layer of dense noble gas. We use argon.

This layer slows heat transfer between the two panes of glass. This means that the outer window pane might be freezing, but that the inner one is usually closer to the inside temperature of your home.

Without the contrast between warm air and cold window, you can wake up after a cold night and open your curtains to reveal a double-glazed window without a thick coat of condensation.

Does double glazing reduce noise?

Yes! Sound travels in vibrational waves, and travels with ease through single glazing. However, sound can’t travel as well through double glazing because of its interstitial gaseous layer — the argon-filled gap between panes of glass. This layer of gas muffles sound, giving you a far quieter home and providing a useful solution to ambient noise issues in the home. If you live in an extremely loud area and you’re craving some peace and quiet, then contact us about our Stadip Silence laminate, which can drastically cut out noise pollution.

What is double glazing?

Double glazing is single glazing, doubled. It has two panes of glass rather than one, separated by a gap filled with (in our windows) argon, a heavy, unreactive gas. Argon gas is denser than air, making it harder for soundwaves or heat to travel between the panes, giving you vastly improved thermal and sound insulation.

Double glazing almost always makes a world of difference to the energy efficiency of homes, meaning lower energy bills throughout the year and a reduced household carbon footprint.

How long does double glazing last?

The standard lifespan of double glazing depends on its quality and care, but is typically around 20 – 30 years. To ensure your windows last as long as possible, you’ll want to check that they’re A-rated for energy efficiency, that they’re expertly installed and that you have a high-quality window frame to reduce draughts.

If you can see increased levels of condensation forming on the inside or in between your window panes, or if the inner pane of your windows feel very cold to the touch, your double glazing might not be working to its full potential.

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Features and benefits

Guarantees you can depend on.

We have built up a great reputation over years of delivering a first class service and excellent products, all from our local, no nonsense all-about-you company.

From characteristic country cottages to contemporary town houses, we’re confident that our products will offer a style and finish to truly transform your home. Through constant innovation the quality, durability and security of our products is genuinely second to none. As a local company we are proud to offer British Standards BS7412/PAS24 for enhanced security.

We refuse to compromise on quality

Our windows are made from British Made, high quality MarinespecTM components, with up to 25 years anti corrosion. They are built specifically for the more exposed areas of corrosion, such as coastal environments to give you worry free performance beyond your guarantee.  We believe spending more on components is worth every penny, and sets us apart from our competitors.

State of the art fabrication for best quality

We have invested millions of pounds into one of the most state of the art manufacturing facilities in the UK.  This enables us to provide you with consistently high quality products at exceptionally good prices. Our loyal factory workers are well trained and take pride in their work, they really care about quality.  Our machines are maintained according to a rigorous servicing regime to keep them in top condition.

Superior energy efficiency

Our ‘A’ rated energy efficient and triple glazed windows are tested by the BFRC, which will save you money on your heating bills. By law your windows and doors have to meet strict thermal performance regulations but you can be rest assured that our products exceed current requirements.

Energy saving is incredibly important and so is keeping your fuel bills down. We are continuously looking for ways to make our homes energy efficient and one way is to choose new PVCu windows and doors. Not only will they help to keep your home warmer, they will reduce your energy loss.

Don’t just take our word for it!

Our suppliers conform to strictly controlled and independently monitored Quality Management Systems such as ISO 9001, to ensure that everything is done correctly and according to best practise.

Our windows are tested independently by British Standards for security, weather tightness and strength performance. This means that periodically, we have to send them to independent test houses, in order to be tested to destruction.

These are just some of the many standards the products in our vast range conform to. Needless to say we take the quality of our products very seriously indeed.


Made to measure

The styles available are endless and the choices to suit your home are bigger than ever before. Traditional, contemporary or modern; our versatile window and door designs will create the look you want to complement and enhance your home. If you want windows that are as individual as you, our range of coloured and woodgrain windows offer you fifteen different colours and finishes.

A local business that really cares about its customers

Our sales consultants, surveyors, admin team and installers really care about you and your home. They are highly trained, motivated and want to go the extra mile to do the best possible job. Our fitters will treat your home with care and respect and will take time to ensure that you are delighted with the end result.

With a local showroom including an extensive display and experts on hand you can see before you buy and meet the team!

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