Triple Glazing

Devon, Honiton and the surrounding areas

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Triple Glazing

  • At Otter Windows, we’re proud to provide the most innovative products to our customers including our high-performance triple glazing. 

    The most efficient windows on the market, our triple glazed units feature not two but three panes of glass. The layer of argon gas trapped between the layers is particularly efficient at limiting heat transfer. This means that whether you want to reduce your heating bills or ensure peace and quiet, triple glazing technology is a smart investment.

    Triple glazing is standard in Northern Europe for its ability to block out unwanted noise and trap heat within your home. Whether that’s heat generated by your heating system or the sun, these thermally efficient windows will maximise energy efficiency by trapping and maintaining that heat within your home, keeping you warm and comfortable in the coldest weather.

    Our triple glazed windows are as beautiful and stylish as the rest of our range, with a choice of modern and heritage colours or woodgrain finishes to enhance your home. Installing our high-quality triple glazing combines energy efficiency, savings on your heating bills and beauty in one innovative package.


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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

If you’re ready to invest in triple glazing visit our showroom or contact us to talk to one of our triple glazing experts about your free, no obligation quote.

Call us on: 01404 549229

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Common Questions

Does triple glazing make a difference?

Triple glazing is the best performing glazing on the market. As a comparison, let’s look at the U-value of double glazed and triple glazed windows. The U-value measures the amount of heat lost, and the lower the value, the higher the level of insulation. 

Double glazing has a U-value of 1.2 while triple glazing has a value of just 0.6, meaning it performs twice as well as double glazing. This excellent performance means you’ll start to see savings on your energy bills.

How long does triple glazing last?

At Otter Windows, we supply all our triple glazed products with a 10-year manufacturer’s guarantee but your windows are likely to last much longer. A lot depends on the installation, the weather, the area where you live and whether you keep your windows properly maintained. Our professional installers will be happy to give you tips on how to keep your windows in the best condition.

As a rule, triple glazing units will function well for 20 years and up to 35 years. It’s worth checking them regularly and keeping the frames clean to make sure they perform as they’re supposed to.

Is it worth replacing double glazing for triple glazing?

Triple glazing is a great investment to make and can add value to your property. Making the switch is not so straightforward if you live in an urban area or your double glazing is relatively new, as you may not see a quick return on your investment.

If you’re building a new home or you live in an area that experiences sharp temperature drops, however, triple glazing is definitely the right choice. As more heat is lost through windows than walls, triple glazing is also a good choice if your home has a large number of windows.

What is the difference between double and triple glazing?

The main difference between double and triple glazing is the number of panes of glass. Our double glazed windows use two panes of glass with a pocket of dense argon gas between them. Our triple glazed units add another pane of glass and another layer of argon which acts to prevent sound and cold air from entering your home.

You’ll need to weigh up the aesthetics of your windows versus their insulating properties. Both double and triple glazing are one of the best home improvements you can make, so talk to our experts about what’s right for your home and budget.

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

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!

An effortless purchase process

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Customer stories

We pride ourselves on outstanding customer service and enjoy hearing your experiences of our products in your homes.

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