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When it comes to enhancing your living spaces with natural light and ventilation, Keylite roof windows are the perfect solution. They are ideal for attic renovations, new office designs or to simply brighten up your home.

However, selecting the right size is crucial for the best use and look. This guide provides detailed information on Keylite roof window opening sizes, ensuring you make an informed decision for your home improvement project.

Keylite roof window sizes

When considering the installation of Keylite windows, it’s important to choose the right size for each type of space in your home. Picking the right window size is key to not only improving the look of your space but also to maximise the effectiveness of light and air flow. Here’s a breakdown of the sizes:

Small Spaces – For smaller rooms, such as bathrooms or hallways, Keylite offers compact window options. The opening sizes for these windows typically range from small to medium – ideal for narrow areas while ensuring ample daylight and ventilation.

Standard Rooms – Standard-sized Keylite windows, suitable for bedrooms and living areas, require openings of [insert specific dimensions]. These dimensions are designed to offer a balance between size and functionality, providing optimal natural light and fresh air.

Large Spaces – For larger areas like open-plan living rooms or studios, Keylite’s large windows need larger openings, typically [insert specific dimensions]. These sizes are intended to maximize daylight and provide expansive views, enhancing the ambiance of larger spaces.

Custom Sizes – Keylite also caters to unique requirements with custom-sized windows. Specify the dimensions of your roof space, and Keylite can provide windows to fit. The opening sizes for custom windows will vary based on your specific needs and roof structure.

Features and benefits

Keylite windows provide a wealth of impressive features and benefits, including…

Energy efficiency

Keylite windows are designed with energy efficiency in mind. Not only do they help in maintaining indoor temperatures, reducing the need for artificial heating and cooling, but they also contribute to cutting down on energy costs. This makes them an environmentally and economically smart choice for your home.

Easy operation

User-friendly, Keylite windows offer a range of opening mechanisms to suit different needs, including centre pivot and top-hung options. This versatility makes the windows easy to use and accessible, especially in hard-to-reach areas, providing convenience and functionality in any space.


Constructed with high-quality materials, Keylite windows are built to last, offering durability and reliability. They are designed to withstand harsh weather conditions, providing long-term performance. They also need minimal maintenance, making them a practical and sturdy choice for any home.

Installation considerations

Professional installation

It’s recommended to have Keylite windows installed by professionals to guarantee the best results, energy savings and safety of the windows – all a vital part of improving your home.

Complying with building regulations

Ensure that your Keylite window installation complies with local building regulations, which is an essential part of the process. These regulations typically cover important factors such as safety, energy efficiency and structural integrity.

Maintenance and care

Keylite roof windows require minimal maintenance. Regular cleaning of the glass and occasional checks of the seals and opening mechanisms will ensure they continue to work effectively for years.

Why choose Keylite?

Innovative design

Keylite roof windows are designed with innovation in mind, featuring a sleek, modern look that maximizes natural light and airflow. Their cutting-edge design provides both style and functionality and integrates smoothly with various roof types.

Wide range

With a wide range of sizes, styles and finishes, Keylite offers solutions for every need and preference. This variety ensures that there is a Keylite window to match any design requirement, whether you’re looking for a specific look or functionality in your home. At Roof Window Outlet, you can pick from a wide selection of flat roof and pitched roof windows.

Transform your space today with Keylite roof windows

Are you ready to fill your home with natural light and fresh air? At Roof Window Outlet, we specialise in Keylite roof windows, offering a solution for every space and style. Whether you’re looking for a compact window for a cozy bathroom or a large, expansive window for your open-plan living room, we have the perfect fit.

Choosing the right window can be daunting, but you don’t have to do it alone. Our team of experts is here to guide you through every step of the process. From selecting the ideal size and style to understanding installation requirements, we’re here to ensure your home improvement journey is smooth and successful. Contact Roof Window Outlet on 0207-550-6595 or email us at for a helping hand. We look forward to hearing from you.

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