Kadi is the head of quality at Klar. She's been working for more than 5 years ensuring the highest possible quality of all products to suit the needs of our customers. With her extensive knowledge she oversees our products from the materials we order to the windows or doors arriving at your home.

Outside of Klar she has worked as an environmental manager and has a degree in environmental technology. This means she also ensures that our production is as sustainable as we can make it. 

In our blogs, she shares her extensive knowledge about everything related to doors and windows and we hope her guiding hand can help you with choosing the right doors and windows for you. 




Marie was a Content Marketer at Klar until June 2025, where she made sure you could easily find timely information, whether it was inspiration or practical guides.


Content Marketer

Alicia Bock is the german content translator at Klar, who translates the content but also helps in producing content as well as creating social media strategies. She has a Bachelor degree in Market and Management Anthropology from the University of Southern Denmark and will continue the Master in Management Accounting.   

Lina has worked front and center with customers in many years across many different industries. She has always been dedicated to give customers the best experience possible. 

On a daily Lina is on the phone, email and website helping Swedish customers find the right doors and windows for them at Klar. One of her key roles is also to help translate our guides and inspiration content so it fits the Swedish market and Swedish customers.

You can find out more about Lina here: https://www.linkedin.com/in/lina-berglund-a4275317b/

Träffa Niklas, vår engagerade tekniska supportchef på Klar. Med flera års ovärderlig erfarenhet inledde Niklas sin resa med oss som supportspecialist. Under hela sin tid här har han odlat en djup förståelse för fönster- och dörrbranschen och specialiserat sig på de tekniska aspekterna av våra produkter. Innan Klar arbetade Niklas som glasmästare i 13 år och har kunskap om allt som finns att veta om glas.

Niklas spelar en avgörande roll för att ligga i framkant av vår produktutveckling. För att säkerställa att han har en oklanderlig produktkännedom besöker han regelbundet vår produktionsanläggning i Estland, där han samarbetar med produktionspersonalen och själv bevittnar det hantverk som ligger bakom våra erbjudanden.

Inom ramen för vår dagliga arbetsmiljö fungerar Niklas ofta som den självklara resursen för många av våra teammedlemmar. Hans expertis skiner igenom när kollegor söker insikter om kompatibilitet och funktioner hos våra produkter. Niklas engagemang för excellens och tekniska färdigheter gör honom till en oumbärlig tillgång för Klar-familjen.


[Meet Niklas](https://dr.dk), our dedicated Technical Support Manager at Klar. With several years of invaluable experience, Niklas embarked on his journey with us as a Support Specialist. Throughout his tenure, he has cultivated a profound understanding of the windows and doors industry, specializing in the technical aspects of our products. Before Klar, Niklas worked as a glazier for 13 years and knows everything there is to know about glass  

Niklas plays a pivotal role in staying at the forefront of our product development. To ensure he possesses impeccable product knowledge, he frequently visits our production facility in Estonia, where he engages with the production staff and witnesses firsthand the craftsmanship behind our offerings.  

Within the daily dynamics of our work environment, Niklas serves as the go-to resource for many of our team members. His expertise shines when colleagues seek insights into the compatibility and functions of our products. Niklas's commitment to excellence and technical prowess make him an indispensable asset to the Klar family.  

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Vinduer og døre i Danmark

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(Klar) Opening floor to ceiling windows

(Klar) Cottage Windows

(Klar) Georgian Windows

(Klar) Casement Windows

(Klar) Fixed floor to ceiling windows

(Klar) Fixed Windows

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A double glazed top guided window

Should you choose double or triple glazing? What's alu-cladding? Are people able to order windows on their own? (The answer here is yes.) Find answers to all that and more on our blog.

Should you choose double or triple glazing? What's alu-cladding? Are people like me able to order windows on their own? (The answer here is yes, anyone can order windows and doors online.) Find answers to all that and more on our blog.

Find Inspiration for Your Home Improvement Here | Klar

 Go for the best energy efficiency with triple glazing

White window frames at Klar's factory

Get to know your paint and your paint technology – child-friendly, chemical-free paint à la high-tech spray-painting robots.

Choosing your Window Frame Colour? We can help!

Windows from Klar in aluclad wood

Learn about the benefits of choosing aluclad doors and windows to your home. It's the preference of industry insiders for a reason. Minimal maintenance, strong durability.

Maintenance free alu-clad doors and windows

A window installed without a packer

Everything you need to know about sealing wooden windows, from 5 easy steps to what to avoid.

A How-To Guide for Sealing Wooden Windows

The Best Way to Clean Windows

Has your room got duller and gloomier? It may be a sign that your windows need cleaning. Here's 5 tips on how to clean windows inside and out. 

Window Cleaning | Klar

Top-guided window on black timber

Wondering what new windows cost? Find out what you can expect to pay for, plus how to keep costs down.


A 2023 Buyer’s Guide to What New Windows Cost

Combination windows allow both light and fresh air

Whether it's 1, 2, 3 or more windows you're replacing, read about key considerations and how to get a quick quote.

What to consider when replacing windows

Fixed windows on a balcony

From casement to tilt-and-turn, uPVC to composite, here is the lowdown on different styles of double glazed windows.

Buyer’s Guide: Styles of Double Glazed Windows

Window in dire need of maintenance

All your window maintenance questions answered, from cloudy glass to wood rot and everything in between.


Searching for a Window Maintenance Guide?

Conservatory windows

If you're wondering what factors make triple glazing worth it, look no further than our complete pro/con list.


Is Triple Glazing Worth it? ➤ Find out here

Kim's beautiful building

Find out how these two types of windows stack up against each other and how to choose what’s best for you.

Evaluating Triple Glazing vs. Double Glazing

Scandinavian houses with white wooden windows

Learn how wooden windows stack up against uPVC when it comes to 7 key homeowner considerations.

The Match-Up: Wooden Windows vs. uPVC

Aluminium windows by Klar

Take an in-depth look at how these different materials match up in our window buyer's guide. 

The Great Debate: Aluminium/Aluclad vs. uPVC Windows

Klar replaces a door

Need to replace your door? ⇒ Take a look at Klar’s wide selection. With the highest-quality materials and sturdy locks.

When to replace a door? Basics & FAQ | Klar Windows

Sun shining through the window

Replacing windows and doors in winter is easy. You'll be surprised at all the benefits!

Buy windows in the winter| Klar

g-value

Don't know what g-value means when talking about windows? We at Klar are experts in the field! Click here to read all about g-value and how it relates to windows.

What is g-value?

Renovierungsarbeiten im Winter

Many people think that you can't install windows and doors when it's snowing or raining, but fortunately this is not the case. You just need to be a bit more calculated, and there are actually advantages to replacing your windows in winter. 

Can you install windows in winter? 

Why Choose Energy Saving Windows for your home

Wondering about U-value, heat loss and energy-efficient windows? ⇒ Check out Klar’s selection of top-quality windows.

A Simple Guide to “What is U Value?” | Klar

Casement windows

Then look no further than Klar’s 2026 buyer's guide, outlining all of the most important considerations.


Looking for Advice on What Windows to Buy?

external door

Find out which external door types lead the pack in appearance, durability, maintenance and price.

2026 Buyer's Guide - What External Doors to Buy

3-layer glass windows can save you money - and with the latest energy requirements, you should now always choose Energy A windows when replacing your windows for your year-round home. 

Comply with insulation and energy class requirements  - Klar

White double patio door from Klar

Patio Doors, Double Frames, Tilt & Turn models and more ! ⇒ Check out the fully customizable options at Klar

What style patio door to choose? | Klar

A black composite door

Composite doors – durable, low-maintenance, safe and robust ⇒ Browse the customizable selection at Klar Windows.


What are Composite Doors? – the Ins and Outs | Klar

Beautiful condensation

Should new windows have condensation inside? ⇒ Contact Klar for all your questions about energy-saving windows

Should windows have condensation | Klar

Triple layer glass

Improve your window insulation by checking how well they are sealed and how many layers of glass they have. Read our guide to proper window insulation here.

Save Energy with Proper Window Insulation

Window frames

The tilt and turn window has many advantages. Due to their minimalist style, tilt and turn windows fit many different types of homes and are therefore always a safe choice. 

Why should you choose tilt and turn windows? 

Lene inspires the world by changing her windows and doors

With new windows and doors from Klar, Lene now has her dream shed, which is perfect for her needs. Let yourself get inspired here.

Lene inspires with an upgrade | Klar

Kim renovates old buildings

Are you into renovations from old into new? Then read about Kim, the contractor and landlord, who's working on renovating an old dairy.

Kim renovates old houses | Klar

A door

Composite doors have caught the eyes of many, but are they the right doors for you? And did you know that aluclad doors are a great and cheaper alternative? 

Composite or Alu clad Doors? | Klar

Tips about buying windows from Klar

Buying new windows can be a daunting task - that is why we have listed ten things you should consider before plunging in. 



10 things you should consider | Klar

painting a wooden door

From colour theory to 7 simple steps – Klar’s guide to everything you need to know about how to paint your front door.

Quick & Easy Upgrade: How to Paint your Front Door

filler

In this blog post, we'll guide you on how to store your newly bought windows and doors during the autumn and winter months, using methods that most homeowners can easily implement.

Storing Your Newly Bought Windows and Doors

For all the details on how to test double glazing window performance, read up on signs to watch for and easy self-tests.

How to test your double glazed windows

Image of a wooden window with chipped painting

Double-check that you have what you need - review our supply list and understand every step to ensure perfect results.

12 Steps to Perfectly Painting Wooden Windows

Casement windows with glazing bars

Read our complete guide to double glazed windows and how to find the best ones.


What Are Double Glazed Windows? ⇒ Find out here

buyers-guide

Buying windows and doors online from Klar should be simple. That's why we're here to give you tips you can use before, during and after your purchase. 

Guide to your purchase | Klar

How to Uninstall Doors and Windows and Install New Ones

About to embark on a DIY home improvement project? We've put together a comprehensive windows and door installation guide to make it easier for you to get started. Be prepared for lots of great advice and information! 

Your comprehensive guide to window and door installation | Klar

White doors with sidelights

For tips on how to care for and service your front door, follow this handy homeowner guide to front door maintenance.

5 Key Steps to Front Door Maintenance

This is how a window is built

Learn about window, door and handle/lock terminology before you buy new windows and doors. It will help you understand some of the names we use.

Get the terminology right | Klar

Junior Sister, Nikki, renovated her cottage home

Junior Sister, Nikki, renovated her cottage home with Klar aluclad cottage windows and an aluminium front door with matching glazing bars. 

Cottage Renovation | Klar

Mogens installs his own windows

Mogens from Denmark has installed his own cottage windows and you can do the same. Learn more about how you can install windows and doors. 