Double Glazing

Devon, Honiton and the surrounding areas

  • Buy now, pay later
  • Interest free finance

Google 4.9 Image

Quick Price

Click Call: 01404 549229

By providing your details you agree to being contacted under the terms of our privacy policy.

0% Finance - Buy now, pay later!

Double Glazing

  • Struggling with inefficient single glazing and massive heating bills? Now’s the time to upgrade to efficient double glazing to bring down your bills and put a stop to excess heat loss. Our bespoke double glazed windows combine efficiency with style, improving energy efficiency and reducing noise pollution so you can enjoy peace and quiet even if you live on a busy road.

    Double glazing works by trapping argon gas between two separate panes of glass. The gas is heavier than air and acts as an effective insulator, preventing cold air outside transferring to your warm interior and bringing down the temperature. You’ll also see a significant reduction in condensation which can be a real problem with single glazed windows. 

    Our standard double glazing has excellent energy savings ratings, but opt for our Super Energy Efficient double or triple glazed windows for even greater savings on your energy bills. Double glazing is one of the best home improvements you can make, adding value, reducing your bills and lowering your environmental impact.

    We all want to feel comfortable and secure in our homes which is why each double glazing unit is manufactured with high security hinges and thermally toughened glass for greater security. Double glass panels, thicker frames and our state of the art locking mechanisms all add up to make our windows highly secure.

  • Icon

    Lifetime Guarantee
    10-year manufacturer’s guarantee.

  • Icon

    Tailor Made
    Classic windows tailor made to your exact specifications.

  • Icon

    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.

  • Icon

    Flexible monthly payments

  • Icon

    Interest free credit

  • Icon

    Buy now / pay later

  • Icon

    No finance required

If upgrading your windows is your top priority then get in touch with us today. Drop into our showroom or contact us today for your free, no obligation quote.

Call us on: 01404 549229

Ballpark price

Need a quick price? The cost below is an indication of price including purchase and installation.

Instant Price Calculator

Need a quick price? Select the volume of windows and doors you want and get an instant quotation.

Close Close
Close Close
French/patio doors
Close Close
Bifold doors
Close Close
Close Close


Get a free instant quotation and gain access to all our brochures and catalogues
* indicates required fields

Is it worth replacing double glazing?

If you only have single glazing then it’s definitely worth upgrading to double glazing for lower bills and greater security. But if you already have older style double glazing it may be worth having it replaced as seals fail and your windows can become less efficient over time.

If your double glazing is under 10 years old it may need repairing to perform at its best. At Otter Windows, our double glazing carries a written guarantee so we’ll repair your windows if they’re not performing at their best. For the highest thermal efficiency, talk to our experts about triple glazing.

Does double glazing reduce condensation?

If condensation is a problem in your home then you need to upgrade to double glazing. Condensation forms when warm air hits the cold glass and water droplets form — the gas filled cavity in your double glazed windows prevents that from happening. However cold it is outside, your windows should always feel warm to the touch with no condensation in sight.

If you have double glazing and you notice condensation starting to form, that could be a sign you need to repair or replace your windows as they’re not performing at their best.

What is double glazing?

The clue is in the name. Double glazing has two panes of glass, not one, and we fill the gap between them with argon. This gas is denser than air making it hard for cold air and soundwaves to pass through the barrier. It’s this thermal insulation that reduces your heating bills and keeps your interiors comfortable all year round.

If your heating bills are high, installing quality double glazing is a great way to improve the efficiency of your home. Talk to our experts today about the right windows for you.

What is the best gap for double glazing?

When you’re choosing your double glazing you’ll find a lot of information about the best size for the gap in your new windows. At Otter Windows, we believe a 20mm gap between the panes in a 28mm unit gives the best performance and this is offered as standard on all our windows. We also use argon gas to fill the gap because it’s denser and heavier than air and can reduce condensation and noise.

We care passionately about energy efficiency and the environment, so our windows are designed to give you the highest performance with the lowest environmental impact.

Does double glazing reduce noise?

Yes, it does. The argon gas in our double glazing is specially chosen for its ability to block out unwanted noise, so even if you live on a busy road you can enjoy peace and quiet in your own home. 

The argon gas in our windows is denser and heavier than air and soundwaves find it difficult to move through it. The result is quieter interiors for you plus all the benefits of greater energy efficiency.

How long does double glazing last?

Properly maintained and looked after, your double glazed windows can last for 20-30 years. Our windows are rated A+ for energy efficiency and use highly efficient argon gas in the gap between the panes for superior performance. We ensure that all our double glazed windows are professionally installed and backed with a 10-year written guarantee for peace of mind

If you see increased levels of condensation or the inner panes of your double glazed windows are cold to the touch, it could be time for replacement windows. Drop into our showroom or contact us to find the best windows for your home.

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.

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

Get a quick quote

Get a quick quote

No pressure to commit, tap through the options and design your solution

Free home survey

Free home survey

We pop-over to measure and double-check technical details



You choose a suitable date for fitting and we do the rest

Customer stories

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

For more inspiration, follow us on social media