Triple Glazing

Devon, Exeter and the surrounding areas

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Triple Glazing

  • Looking for the best energy-efficiency a window can offer? Triple glazing is your answer. 

    Triple glazing works in the same way double glazing does, with panes of glass separated by a dense insulative gas which prevents heat transfer. The difference in triple glazing, however, is another extra pane and another pocket of trapped gas. This means that there are higher levels of insulation, so you’ll stay warmer without having to crank up the thermostat in the winter. 

    At Crown Commercial, we pride ourselves on being at the forefront of the industry, creating valuable customer relationships and offering some of the most innovative products for your beloved project. 

    Triple glazing is used successfully in colder climates such as Norway and Sweden, as its ability to preserve heat is vital to keeping these projects comfortable to live in. Triple glazing will likely be a good choice if you live in a rural area where temperatures can plummet during the winter months.

    Installing triple glazing will reward you with worthwhile savings on your heating expenditure. Triple glazing is also an option in a variety of window frame materials and finishes. You won’t have to compromise your dream design for energy efficiency; our triple glazing offers both.

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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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    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

Level up your windows with triple glazing by visiting our Exeter showroom today, where you can uncover options for you as well as a no-obligation quote.

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Common Questions

Does triple glazing make a difference?

Triple glazing offers more insulative factors than single or double glazing, which is a huge sign of it making a difference. Using an example, the U-value of different materials can be used. U-values demonstrate heat loss. Lower U-values show better insulation, whilst higher ones are not as effective. Brick walls have a U-value of 2.0, double glazed is around 1.2 and triple glazing 0.6. Triple glazing is twice as effective as double glazing and means you will save on your heating bills. However, in regards to period properties, owners should resolve other issues to do with draughts before installing triple glazing to experience the best difference.

Is it worth replacing double glazing for triple glazing?

Triple glazing serves better insulation than double glazing. In the sharp winters of Scandinavian countries, triple glazing is their standard. We recommend switching from double to triple glazing if you find your double glazed windows are wearing with age. It’s also a good choice if you live in a rural area, as temperatures tend to drop more sharply at night than in other areas. If you reside in an urban area and your double glazing works well or is new, the switch to triple glazing may not be so rewarding.

How long does triple glazing last?

Factors such as weather, area, and maintenance influence the longevity of triple glazed windows. We give our triple glazing a 10-year manufacturer’s guarantee but your windows are likely to last much longer than this. We believe that taking good care of your triple glazing, by wiping the frames down to rid them of dirt and debris, will make them last a long time. Twenty years is an estimate for how long they will function at their top potential, yet sometimes this stretches to up to 35 years with minimal insulative degradation.

What is the difference between double and triple glazing?

Double glazing sufficiently insulates your project against harsh temperatures and noise with its two panes of glass and the argon-filled air gap. Argon gas is a key insulative component as its density successfully blocks heat transfer. Whilst triple glazing serves the same purpose, it contains an additional pane of glass and one more air gap of argon. This design brings even more insulation due to the additional number of glass panes. This does mean that your windows will be thicker than double glazing. We understand thicker glass is not for everyone, so we offer different thickness and thinness.

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 project. 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 projects energy efficient and one way is to choose new PVCu windows and doors. Not only will they help to keep your project 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 project 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 project. 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 project. They are highly trained, motivated and want to go the extra mile to do the best possible job. Our fitters will treat your project 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!

An effortless purchase process

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