Double glazed windows

Find the price of your new windows by entering your measurements. All available with double or triple glazing - see the selection below. Order directly online.

Why order windows from Klar?

Your new windows should be made uniquely for your home. Here's four good reasons why you should choose Klar for that job:

All the windows are produced in our own factory
We replant trees for the ones used in our windows
We're here to help you by phone or email at most hours
You get 10 years warranty on all windows
It Is Easy to Order Windows & Doors Online

Measure your old windows and doors:

Read our guide on measuring


Find your new windows and doors


Receive your delivery and install it:

Read our guide on installing

A Certified Friendly Shop

Your order with us is certified to protect you and our planet.

The mark of responsible forestry

Kim is fanatic around Klar's windows

Windows are one of the most important aspects of your house and for your home, but the vast majority of people forget to appreciate this fact. The correct made to measure windows will bring more ventilation and natural light into your home, benefitting you and your family’s physical and mental health. Having a well-ventilated and naturally lit home will bring many positive effects. When it comes to having a lively, relaxing atmosphere in your home, lighting will be one of the most fundamental elements. Natural and bright light will not only brighten your day, but it will also brighten your mood, as you will feel more alert and awake. 

As we know them today, windows originate from the beginning of the 15th century. A lot has changed in the window industry regarding the technology behind window manufacturing. The industry as a whole has seen significant improvements across the board, especially with energy efficiency as modern double glazed windows have become much better at reducing heat emissions from your house. You can as a result save quite a bit on your heating bill, which in turn leaves you with more money to spend on improving your home even more!

Because consumers, including you probably, have become more aware of climate change, the pressure to improve within the window industry has increased substantially. Double glazed windows have become the standard for modern homes, providing families with more efficient glazing options. 

Triple glazed windows are also possible to order here at Klar Windows. By choosing triple glazing, you will see an even greater increase in energy efficiency. Our made to measure windows can furthermore be ordered with different bonus modules such as ventilation valves and sun protection glass. 

Ordering bespoke new double glazed windows has never been easier

Our mission at Klar is to provide people with the easiest way to upgrade your windows and doors. Our goal is to provide you with the best quality new wooden double glazed windows custom made for your home. We provide timber double glazed windows at an affordable price that you can order from the comfort of your home.

So, we established our own production facility and website with a custom configurator. As a result, there is no middleman between you and the product. That is how we provide you with the best product at an affordable price. We’ve worked hard since our birth in 2015 to heighten the level of ease of use, efficiency and quality.

You can order bespoke wooden double glazed windows directly from our production facility

When ordering new double glazed windows from Klar Windows, your order will be sent directly to our factory, where your made-to-measure wooden windows will be produced exactly to your measurements. You can see all our different types of double or triple glazed windows, browse through the various options and really get down into the nitty-gritty details of how you want your home to look. 

Buying new double glazed windows can be a time-consuming process and it is not something to be done quickly. After all, it is one of the bigger projects in home renovation that you might do, and thus we want to make it as relaxing and inspiring an experience as possible. 

It has never been this easy to customize and order double glazed windows directly to your address, as it is with our configuration tool. 

Inexpensive new double glazed windows of the highest quality

And you might think: “How is this possible?” Well, to put it simply, we’ve optimized the processes in our production facility meticulously to both raise the levels of quality to industry-leading standards while maintaining price levels to the point where every household can have beautiful new made to measure windows—whether that be double glazed windows or triple glazed windows

There is a multitude of reasons as to how we’re able to deliver our products at our prices. The most important reason is however our factory workers who are absolutely essential to the Klar Windows mission. Without our incredible and hardworking production staff, we’d have little to show for it. 

If you want to read more about our production process and staff, you can do so here, Read about us.

Upgrade your home with our top-of-the-line double glazed windows 

While our production facility staff is hard at work, we’re also cooperating with several incredible suppliers who likewise are essential for the quality of our made to measure windows and door offerings. 

We have decided at Klar Windows that we want to pay extra for the good materials and to decrease our margins to offer you a better deal. 

At Klar we have a different company structure than our competitors which grants us the possibility to drive the price down while providing an equal or greater quality finished product. That is whether you wish to order our Cottage Windows, Top Guided Windows, Casement Windows or Georgian Windows.

The price increasing middleman is cut out of the picture

As a result, you’ll be able to order your made to measure wooden windows at a price drastically lower than what our competitors are able to. 

Our production facility and a large amount of our staff are located in Estonia, a country known for its heritage and traditions in carpentry and woodworking. Estonia is also one of the few countries in Europe where pine trees have the best growth conditions and with plenty of pine trees readily available, the process from cutting down the trees to manufacturing the windows is short and efficient. 

Moreover, pine trees need the average temperatures of the climate to be extremely low in order for the core density of the wood to be strong for high-quality timber products. And Estonia is one of those countries where this exact requirement is met. 

As you can hear, we’ve taken every aspect into close consideration when developing Klar Windows. The reason is simply to deliver the best made to measure double glazed windows for the best possible price.

Two types of window manufacturers

With so many competing businesses it can be difficult to figure out what offer is the best offer. To give a quick overview we can segment window manufacturers/suppliers into two categories:

The first one is:

  1. The traditional window manufacturers/suppliers 

Here you can only apply to “get a quote” through a salesperson. In most scenarios, this results in higher prices on windows, because you’re paying for someone to make your quote. And the actual process of receiving an offer is slow and cumbersome. Typically, you will also pay a hefty amount for measurement and installation. 

The second type is:

  1. An online shop manufacturing and selling windows 

This is Klar Windows. We are a relatively new competitor in the business, and we aim to change the way buying made to measure windows has typically been done. By offering a wide range of products and a do-it-yourself configurator, you can decide your own deal. By deciding on your own offer, you’re technically cutting out the middleman and thus saving the cost it would’ve required for you to get a professional carpenter/installer to make the measurements of your double glazed windows. Which you can do perfectly fine yourself:

How to measure windows and doors

How to install windows and doors

If you’re handy and love DIY (Do it yourself) projects, you might even want to install your windows on your own, thus saving an even larger amount of money.

7 types of wooden double glazed windows and more than 119 different variations

Yes, you read that correctly. 

We offer many types of double glazed windows and you can even choose triple glazed windows if you like. Choose between timber windows or Alu-clad windows and more. 

How much do double glazed windows cost?

Double glazed windows can vary in price relative to what type of window you’re looking for. At Klar, our most affordable double glazed window starts at 46.01 GBP, while our opening floor-to-ceiling windows start at 205,26 GBP. Price is relative to window dimensions and materials.

Timber is the most affordable option on offer, while we always recommend going for the combination of Timber and Aluminium to increase the efficiency and lifespan of your window products.

If you’re interested in pricing, you can contact our customer service for a more in-depth explanation.

Here you have our four tips to ensure you buy inexpensive double glazed windows at top quality

  1. Decide for yourself what type of window you’d like and how important the price is. Especially take the aesthetic of your house into careful consideration. 

  2. Buy your window from an online shop - You’ll typically be able to save between 35-40% compared to traditional glazing industry standards. 

  3. Find the best possible quality windows by making sure to check reviews (including ours)

  4. Make use of price comparisons functions to ensure you’re getting the best offer

With our configurator, you will be able to customise your order to exactly your liking. You are able to see the exact price of your made to measure windows - and if you either add or deselect, the price will change accordingly to reflect your actual order value. 

In need of help ordering your new wooden double glazed windows?

Please contact our customer service if you have any questions.