Knowledge base

Published on July 20, 2026 7:30 PM

What Sash Window Styles Are Available With Colin’s Sash Windows? Sash windows have been a staple in architectural design for centuries, offering both aesthetic appeal and functionality. Colin’s Sash Windows, with nearly two decades of expertise, presents a diverse range of sash window styles, each tailored to meet the unique needs and preferences of homeowners. […]

Published on July 20, 2026 8:18 AM

Timber Sash windows have been fashionable for centuries, and it doesn’t seem like they’re going anywhere time soon. The amazing look and the various benefits that these windows offer make them a popular choice. Many people are now considering adding timber sash windows to their houses.  However, if you’re not sure whether or not it […]

Published on July 5, 2026 12:32 PM

Sash windows are a classic feature found in many homes, renowned for their traditional charm and the unique way they open by sliding vertically. To keep them looking their best and operating smoothly, regular cleaning is essential. Despite their distinct design, cleaning sash windows doesn’t have to be complicated. By understanding the structure of these […]

Published on March 3, 2026 10:02 AM

A uPVC windows colour chart shows the standard frame colours, woodgrain finishes, and custom RAL spray options available for modern uPVC windows. While white remains the most common choice, coloured and woodgrain uPVC windows are now widely used on both traditional and modern homes. This guide explains: Standard uPVC colours Popular woodgrain finishes Sprayed RAL […]

Published on March 3, 2026 6:04 AM

There is no single standard window size in the UK. What people usually mean by “standard window sizes” are typical size ranges commonly used by builders and retailers, rather than fixed rules. In practice, most modern windows are made to measure, although a small number of off-the-shelf windows are available in limited sizes. This guide […]

Published on January 29, 2026 12:39 PM

If you are measuring for a new door, replacing an existing one, or checking whether a door opening is standard, width matters more than most people realise. In the UK, most doors fall into a small number of standard widths. However, the actual opening you need depends on whether the door is internal or external, […]

Published on January 29, 2026 11:19 AM

In most standard UK houses, fire doors are not required throughout the entire home. They are usually only required where they protect an escape route, such as in loft conversions, between a house and an integral garage, or in certain higher-risk layouts. UK Building Regulations set fire door requirements and depend on how your home is built, […]

Published on January 26, 2026 11:30 AM

Energy bills rise sharply in winter, and windows play a bigger role than many homeowners realise. Older or inefficient uPVC windows can significantly increase heat loss, forcing heating systems to work harder and pushing costs up. This guide explains how much uPVC windows can cost you in winter, what difference modern windows make, and whether […]

Published on January 26, 2026 11:23 AM

A U value measures how much heat passes through a building element such as a window, door, or wall. For windows and doors, a lower U value means better insulation and less heat loss. In the UK, U values matter because they affect: How warm your home feels near windows Heating bills and energy efficiency […]

Published on January 26, 2026 8:48 AM

As we all know we’re getting more hot weather than ever. A lot of our customers might not know how to use their new double glazed uPVC sash windows for optimum ventilation. According to experts, the Edwardians and Victorians installed sash windows with meticulous care, recognizing their ability to enhance air circulation within rooms and […]

Published on January 23, 2026 8:22 PM

Here at Colin’s Sash Windows we pioneered the interruption of the double glazed sash windows market in the UK in 2014 by supplying uPVC sliding sash windows at one fixed price for any size. Before this they were primarily sold by local window installation companies as a supply and fit product or at highly inflated […]

Published on January 23, 2026 2:07 PM

The best door colours for brown windows are white, cream, dark green, navy blue, charcoal grey, black, and natural wood tones. These colours balance the warmth of brown frames without clashing or making the frontage look dated. The right choice depends on the property style, brick colour, and whether you want contrast or cohesion. Doors […]