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Grey uPVC windows guide: Styles, costs, and advantages

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Grey unplasticised polyvinyl chloride (uPVC) windows have grown in popularity in the UK in recent years, and add a modern aesthetic to different styles of homes, including flats and terraced, semi-detached and detached houses. They are manufactured in different types of windows, including casement, sash, tilt-and-turn and bay windows.

Available in various designs and styles, uPVC windows are a budget-friendly option for window frame materials and offer multiple benefits, such as energy efficiency, easy maintenance and a decent lifespan. Grey uPVC window frames are made from durable uPVC plastic that enhances their longevity.

The energy efficiency of grey uPVC windows is a key feature for many homeowners. Typically combined with double or triple-glazed panes, grey uPVC windows help reduce heat transfer and minimise drafts, resulting in average yearly energy savings of £110 to £115, compared with a home with single-glazed, wooden-framed windows.

Grey uPVC window styles

Grey uPVC windows are available in a range of window style options, including:

  • Casement
  • Sash
  • Bay
  • Bow
  • Tilt and turn
  • Fixed

Grey uPVC casement windows are used widely. This simple and effective style allows for uninterrupted views from the window, and optimum levels of ventilation when open. A casement window opens like a door, with hinges on the window’s left- or right-hand side.

Grey uPVC sash windows typically feature two panes (sashes) that slide vertically over each other. Sash windows save space, as they don’t open inwardly or outwardly.

Grey uPVC bay and bow windows are two similar window styles – both include a protrusion from a property’s exterior wall, creating additional space inside and providing a character aesthetic. Commonly seen in Victorian and Edwardian properties, bay windows typically have three window sashes, including a larger pane to the centre and two windows on either side, positioned at 30-, 45- or 90-degree angles, to create an angular or rectangular shape. Meanwhile, bow windows have four to six sashes arranged at greater angles to create a consistent curved shape.

Grey uPVC tilt-and-turn windows offer two inward-opening options. One operates like a door with a side hinge, providing good ventilation and the convenience of cleaning both sides of the window from inside the property. The second opening allows the window to open inwardly, tilting from a hinge at the bottom to create a smaller opening at the top of the window. Tilt-and-turn windows are popular due to their security features and ventilation options in bad weather conditions.

Also known as picture windows, grey uPVC fixed windows have no openings. They offer uninterrupted views and allow an optimum amount of natural light to enter a room. Fixed windows are often paired with other window styles that allow ventilation in the home.

It’s advisable to consider specific design requirements and opening, ventilation and view choices when deciding on the most appropriate style of grey uPVC window for your home.

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Grey uPVC windows cost

Grey uPVC windows prices can vary based on several factors, including the number and size of the windows, the selected style and designs, the chosen manufacturer and installer, the property’s location and any additional or bespoke requirements.

When looking at the cost of grey uPVC windows, the main thing to consider is how many windows need replacing and their sizes, which will be the most significant cost variable. A terraced house may require eight grey uPVC windows, costing between £2,800 and £4,000 on average, whereas a detached house may need 15 windows, costing between £5,250 and £7,500. The cost of a single grey uPVC casement window is generally between £350 and £500.

Remember that there will be fluctuations in the average cost of grey uPVC windows if premium glass or hardware options are selected, larger windows are required or more intricate window styles are chosen, such as bay or tilt-and-turn windows. Additionally, should you choose to specify a different colour of uPVC for the interior, this will increase the price. 

Homeowners in areas of the UK where labour and business costs are higher will typically receive higher quotes than those in regions with lower operating costs. Costs will also differ between local suppliers and manufacturers, so it’s always advisable to get a few quotes when considering grey uPVC windows. It’s prudent to obtain quotes from reputable local companies that offer the expected assurances and warranties.

Grey uPVC windows pros and cons

There are several advantages and disadvantages of grey uPVC windows that homeowners should consider. 

First, we’ll look at the pros: 

  • Grey uPVC windows provide homeowners with an excellent energy-efficient option, as they improve insulation, reduce heat transfer from the window and help lower energy costs by £110 a year, on average.
  • As grey uPVC windows are made from a strong and durable material, they’re a great choice for durability and reduced maintenance requirements. They’re resistant to rotting and adverse weather conditions and don’t require any routine maintenance other than cleaning and lubrication.
  • Grey uPVC windows are available in various sizes, designs and styles, making them a versatile option for different property types. Grey uPVC is often one of the most budget-friendly window frame materials compared to aluminium or wooden alternatives.

Now, we’ll look at the cons: 

  • Grey uPVC windows tend to have slightly more cumbersome-looking frames when compared to more stylish aluminium or wooden frame options. This is because grey uPVC window frames tend to be marginally bigger than other material options.
  • Over time, grey uPVC windows, particularly those frequently exposed to ultraviolet rays or other extreme weather, may experience discolouration, impacting the window aesthetics.

Grey uPVC windows have more limited design and colour options when compared with wooden or aluminium alternatives, which offer much more versatility when it comes to colours and customisation.

It’s a good idea for homeowners to weigh the pros and cons of grey uPVC windows in relation to their requirements and preferences.

What to look for in a grey uPVC windows quote

When getting a quote for grey uPVC windows, it’s best to have an idea of your preferred window styles in addition to glazing, design and hardware requirements. This ensures that the quotes obtained align with your expectations and requirements. The greatest variation in the cost of grey uPVC windows tends to be the number of windows required; on average, one grey uPVC window will cost between £350 and £500.

While cost is essential when choosing a supplier for grey uPVC windows, it’s important to remember that specialist installation skills are required for fitting grey uPVC windows, and reputable companies will ensure that your new windows are of good quality and installed correctly. Reputable uPVC window companies should offer guarantees and warranties to ensure consumer protection if the window standard or fitting quality falls short of expectations, maximising the lifespan of any new windows.

When considering grey uPVC windows for your home, we’d advise you to obtain multiple quotes from reputable local window companies to understand the price variations and get the best deal for new grey uPVC windows.

Grey uPVC windows Q&A

While uPVC windows are generally the most affordable window type, grey uPVC windows may be slightly more expensive than standard white ones. However, they typically won’t be more expensive than uPVC windows of any other colour.


The price of uPVC windows will more likely vary based on factors such as the chosen style, glazing and suppliers rather than the uPVC colour. Other factors that may increase the price of uPVC windows include any required special finishes or customisations.


Obtaining quotes for grey uPVC windows from a few local window companies that specialise in uPVC window supply and fitting is advisable. These companies can provide accurate quotes considering the number and sizes of the windows, preferred window style and any glazing, design, security and hardware options. You may be able to reduce your window costs by obtaining a window grant, but you have to qualify for these based on your personal circumstances.

Light grey is a neutral colour, so it can be easily paired with several colour options to create different design aesthetics. Some colours that pair well with light grey include white, other neutral and grey tones, metallic colours, wooden tones, lighter pastel colours such as pastel blue or pastel green, darker greys and even black. 


When considering light grey uPVC windows for your home, it’s good to pair them with colours in line with your personal preferences and consider the overall colour scheme of your home, ensuring that light grey windows will complement this. Many window suppliers can use visualisation tools to show customers what light grey windows will look like in their homes before ordering. In addition, websites such as Pinterest allow consumers to search for light grey windows in various styles and view similar completed projects.

Grey windows are currently a popular choice for UK homeowners, and it’s unlikely that grey windows will go out of fashion, as grey is a neutral and versatile colour that gives a sophisticated and timeless appearance. Although there may be more popular colour choices for uPVC windows in the future that could affect the popularity of grey uPVC windows, it’s important to choose the uPVC window colour for your home based on your personal preferences and the overall look you’d like to achieve.

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This calculator works using pricing data sourced directly from UK windows manufacturers. Prices are subject to fluctuations, however, so please use the results as a guide and contact suppliers for an exact price for your property.

Liz is a distinguished author and a leading voice in the realm of home improvements. With an unwavering dedication to sustainable living, she brings a wealth of expertise as a home improvements connoisseur, specialising in energy-efficient enhancements.

With a particular emphasis on reducing energy consumption, Liz’s passion shines through in her advocacy for upgrades like double glazing windows. 

Through her insightful writing, Liz empowers homeowners to embrace greener lifestyles without compromising on comfort or style. Her articles, guides, and expert opinions provide practical, step-by-step advice for those eager to make a positive environmental impact. Whether you’re a DIY enthusiast or a homeowner seeking to curate a more sustainable space, Liz offers a wealth of knowledge to inspire and guide your home improvement journey.

Amy Reeves


Amy is a seasoned writer and editor with a special interest in home design, sustainable technology and green building methods.

She has interviewed hundreds of self-builders, extenders and renovators about their journeys towards individual, well-considered homes, as well as architects and industry experts during her five years working as Assistant Editor at Homebuilding & Renovating, part of Future plc.

Amy’s work covers topics ranging from home, interior and garden design to DIY step-by-steps, planning permission and build costs, and has been published in Period Living, Real Homes, and 25 Beautiful Homes, Homes and Gardens.

Now an Editor at the Independent Advisor, Amy manages homes-related content for the site, including solar panels, combi boilers, and windows.

Her passion for saving tired and inefficient homes also extends to her own life; Amy completed a renovation of a mid-century house in 2022 and is about to embark on an energy-efficient overhaul of a 1800s cottage in Somerset.