SAVE up to £150 per year on your energy bills by installing New Windows!
Answer these simple questions and we will find you the BEST prices.
Save hours of research time
Save hours of research time

Get up to 4 quotes by filling in only 1 quick form

Save up to £150 per year on energy bills 
Save up to £150 per year on energy bills 

Slash your energy bills by installing double glazing

Save the planet
Save the planet

We’ve helped over 500,000 homeowners reduce their carbon footprint

Mentioned in
The Guardian logoHarvard University logoIndependent logoSPACE.com logoForbes logo
Last updated: 31 May 2024

The Window Guide UK - 2024

windows uk

Are you tired of staring out of dull, outdated windows? You may consider replacing them, but maybe you're unsure where to start? 

We've compiled a thorough guide covering everything you need to know about glass windows, from the different styles and frame materials to the glazing options and pricing.

Whether you're looking to replace your windows for aesthetics or better energy efficiency, our guide has got you covered.

But that's not all. We also provide a comparison of window prices for different options, so you can make an informed decision that fits your budget. We want you to sense security in your choice and know you're getting the best value for your money.

An important step to any new windows installation is to find the best window companies near you. Once you're ready for some new windows, it can be difficult to navigate the sea of window installation companies out there. The best way to ensure you're receiving a fair quote for installation is to compare prices from multiple installers. 

This can certainly be a time consuming process. It can also be difficult to know which installers will do a high quality job with high quality products. What's more, reaching them and getting the information needed is not always easy and fast.

That's where GreenMatch's exclusive quotes service can help you. Simply fill in the form linked below and we'll match you with up to 4 of the best installers for the job. We'll always make sure to match you with companies based in your area, so you can take advantage of their local rates. All the installers in our wide network are vetted by us, and qualified according to the latest FENSA regulations. Get started today by clicking below.

Get your best deal
Quickly compare 4 FREE quotes
  • Quotes from local engineers
  • Payment by finance available
  • Save up to £150 per year
GET QUOTES NOW

It only takes 30 seconds

Earth globe icon
Optimise your home and save the planet
Earth globe icon
Call us to get quotes
We will get you the best deal

The Different Types Of Window

Several windows are commonly used in modern construction and home design. Some of the most popular types of windows include casement and sash windows. Watch the video or continue reading below to find out more about each different window type.

What Types of Windows Are There in the UK?

casement window

1. Casement Windows

Casement windows are one of the most common types of windows found in residential and commercial buildings. They are characterised by the side-mounted hinges that allow them to open and close like a door. They can be single or double casement windows. Casement windows are also popular for their energy-efficient properties as they provide an airtight and watertight seal on all four sides (especially if they open inwards).

This design allows for a larger and unobstructed view. It will enable more natural light to enter a room than other window types. Casement windows are also popular for their energy-efficient properties as they provide an airtight and watertight seal on all four sides.

Most casement windows open outward and are operated by a small mechanical crank or handle positioned opposite the hinge. This handle or crank also functions as a latching mechanism, locking the window shut or securing it in place when open. Casement windows are also available in tilt-and-turn versions, which allow the window to open inward for easy cleaning and maintenance.

Various types and styles of casement windows are available, including wood, aluminium and uPVC.  Composite windows can also be considered based on user preference.

But what is a uPVC window? Be sure to check out our page on the topic to learn more.

Aluminium casement windows are known for their durability and sleek appearance. Some casement windows are also available in different shapes, such as arches or circles, allowing for more design flexibility.

Therefore, casement windows are a great option for those looking for a window that provides ample natural light, ventilation, and energy efficiency. With various styles and materials to choose from, casement windows can fit into any design aesthetic and offer functional benefits to any space.

sash window

2. Sash Windows

Sash windows are a type of window that features one or more vertically movable panels, or "sashes." These sashes are typically made up of smaller paned windows but can also be made with a single sheet of glass. Sash windows are a popular and classic style of window that has been used for centuries and are commonly found in historic homes and buildings. Popular variations of sash windows include cottage windows, Georgian windows, and Victorian.

Sash windows are designed to slide vertically within the frame. They are operated by cords and weights concealed within the frame. The sashes can also be operated by a spring system, which is a more modern approach to the traditional cord and weight mechanism. This design allows for the easy and smooth operation of the window, making it simple to adjust the amount of airflow and light entering the room.

One of the benefits of sash windows is that they can be made with various materials, including wood, uPVC, and aluminium. Wooden sash windows are famous for historic and period properties, providing a traditional look and feel. uPVC sash windows are a more modern option and offer greater durability and energy efficiency. Aluminium sash windows are also popular, particularly for commercial buildings, as they are lightweight and offer a sleek and modern appearance.

In addition to their aesthetic appeal, sash windows are also known for their energy efficiency. Sash windows can provide a tight seal when properly installed and maintained, preventing drafts and heat loss. This can result in lower energy bills and a more relaxing living environment.

Interested in installing sash windows for your home but have no clue where to start? Not to worry - we’re here to help. Looking up window installers near you on your own can take hours of tedious research. With so many installation companies to choose from, it can be overwhelming to find the right one for you. 

Fortunately, we’ve done the hard work for you. Now, all that’s left for you to do is to fill in our 30-second form and we can put you in touch with up to 4 local window installers vetted by us. They will reach out to you with quotes for new sash windows and for their installation services. All quotes are non-binding and completely free. Simply click below to get started today!

Get your best deal
Quickly compare 4 FREE quotes
  • Quotes from local engineers
  • Payment by finance available
  • Save up to £150 per year
GET QUOTES NOW

It only takes 30 seconds

Earth globe icon
Optimise your home and save the planet
Earth globe icon
Call us to get quotes
We will get you the best deal
double hung windows

3. Double Hung Windows

Double hung windows are a type of window that features two vertically sliding sashes within a single frame. This means that both the top and bottom sash can be opened independently of each other, allowing for greater control over the amount of ventilation and airflow in a room.

The design of double-hung windows allows for easy operation, as the sashes can be moved up and down within the frame using a simple latch or pull.

One of the main benefits of double-hung windows is their energy efficiency. Double-hung windows can provide a tight seal when properly installed and maintained, preventing drafts and heat loss. Double-hung windows are also popular for their aesthetic appeal, as they offer a classic and timeless look that can fit various design styles.

Another benefit of double-hung windows is their ease of cleaning. Since both sashes can be moved independently, it is easier to clean the inside and outside of the window without needing a ladder or special equipment.

Double-hung windows can be customised to fit any design aesthetic. Their energy efficiency and ease of operation make them a practical and functional choice for any space. If you're looking for a classic and practical window option, double-hung windows may be the perfect choice for you.

Both sash and double-hung windows are widely recognised in traditional British residential architecture. They are symbolic of a particular architectural aesthetic аnd time period.

Replacing sash or double-hung windows with new windows of the same type, in either aluminium, uPVC or wood, will greatly improve the performance of your windows and thus, improve the efficiency of your home while retaining the sought-after style.

Tilt and turn windows

4. Tilt And Turn Windows

Tilt and turn windows feature a dual-opening mechanism. This means that the window can be opened by tilting the top of the sash inward or swinging the entire sash inward like a door. This design offers greater flexibility and controls over ventilation and airflow, as well as ease of cleaning.

They can be single or double windows. In case when they are double, the dual-operating mechanism is available only for one of the sides of the window, while the other remains fixed and closed.

When tilted, tilt and turn windows allow for fresh air to enter the room while maintaining security, as the opening is too small for a person to enter. This makes them a popular choice for ground-floor windows and for homes in urban areas where security is a concern. When fully opened like a door, tilt and turn windows provide maximum ventilation and easy access for cleaning.

Tilt and turn windows are also known for their energy efficiency. The window provides an airtight seal when closed, preventing drafts and heat loss. 

Tilt and turn windows are unrestricted in various materials, including wood, uPVC, and aluminium. This allows for customisation to fit any design aesthetic, whether traditional or modern.

So, if you're looking for a window that offers flexibility and practicality, tilt and turn windows may be the perfect choice for your home or building.

sliding sash windows

5. Sliding Windows

Sliding windows are a sleek and modern option for those prioritising space-saving functionality and a minimalist aesthetic. As the name suggests, sliding windows feature sashes that slide horizontally within the frame instead of vertically, like double hung windows.

One of the main benefits of sliding windows is their ease of use. The simple sliding mechanism allows for easy operation. It can be a great option for hard-to-reach areas or windows that are located behind furniture or other obstacles.

Another benefit of sliding windows is their energy efficiency. When properly installed and maintained, sliding windows can provide an airtight seal, preventing drafts and heat loss. 

Sliding windows come in various materials, including uPVC, aluminium, and wood, allowing customisation to fit any design style or preference. Depending on your needs and preferences, they can also be designed with different types of glass, such as tinted, frosted, or tempered.

bay window

6. Bay Windows

If you're looking for a window that adds elegance and functionality to your home, then bay windows may be a perfect choice. Bay windows are a type of window that extends outward from the wall, creating a unique and distinctive architectural feature.

One of the main features of bay windows is their ability to let in a lot of natural light. The bay windows' design allows light to enter the room from multiple angles, creating a bright and airy atmosphere. Additionally, the protruding design of bay windows provides extra space, making them a popular choice for those who want to create a cosy reading nook or add extra seating to their room.

Another benefit of bay windows is their versatility in design. Bay windows can be customised to fit any architectural style, whether traditional or modern. Depending on your preferences and needs, they can also be made from various materials, including wood, uPVC, and aluminium.

Bay windows are also known for their energy efficiency. When properly installed and maintained, bay windows can provide an airtight seal, preventing drafts and heat loss. 

bow window

7. Bow Windows

Looking to add a touch of polish and civilisation to your home? If so, bow windows may be the perfect choice for you. Bow windows are a type of window that consists of multiple panels arranged in a gentle curve, creating a beautiful and distinctive design feature.

One of the main features of bow windows is their ability to provide a panoramic view of the outdoors. The gentle curve of the panels allows for a wide and unobstructed view, providing a sense of openness and spaciousness to any room. Additionally, bow windows can also create extra space, making them a popular option for those who want to add a cosy seating area or create a unique design feature.

Bow windows can be made from various materials, including wood, uPVC, and aluminium, allowing for customisation to fit any design style or preference. Depending on your needs and preferences, they can also be designed with different types of glass, such as tinted, frosted, or tempered.

However, window installation requires a skilled professional, as they are custom-made to fit the exact measurements of your home. But, once installed, they are known for their energy efficiency and ability to provide a tight seal, preventing drafts and heat loss.

8. French Windows

These windows are a type of double door that features multiple panes of glass, providing a stylish and elegant look that's hard to resist.

The large panes of glass make for a bright and airy atmosphere, creating a welcoming and inviting space. Additionally, French windows can be opened wide, allowing for plenty of ventilation and fresh air to flow into your home.

French windows are highly customizable and can be crafted from a variety of materials, such as wood, uPVC, and aluminium, to suit a wide range of design styles and preferences. Depending on your individual requirements and aesthetic sensibilities, these windows can be tailored with different types of glass, including but not limited to tinted, frosted, or tempered glass.

Installing French windows is a job that requires the expertise of a skilled professional. This is because French windows are custom-made to fit the exact measurements of your home perfectly, ensuring a seamless and precise installation.

However, once your French windows are installed, you can rest assured that they will provide optimal energy efficiency and airtight sealing. Say goodbye to pesky drafts and heat loss and hello to a cosy and comfortable home. The tight seal provided by French windows keeps your home warm in the winter and prevents unwanted heat from entering in the summer, keeping your home comfortable year-round.

Great! So, finding reliable and trustworthy window companies near you is crucial to get the best from the different types of windows that can suit your home.

Check out our local windows pages to learn more about some of the best companies operating in your homes country:

Choosing a company with a proven track record of quality installations and customer satisfaction ensures that your new windows will be installed to the highest standards. 

Searching for "Window Companies Near Me" or "Window Replacement Near Me" may be a good place to start. However, there are a lot of options out there and not all of them can guarantee a high quality job. At the same time, it can be difficult to know which installers are offering the fairest prices and the highest quality parts and labour. This is where we can help. 

Our dedicated team can find the best installers for your new windows, based on the details you provide by filling in our 30-second form. We will then put you in touch with up to 4 local installers from our broad network of specialists. By comparing quotes you can find the right installer for you and secure the best deal for your home. Don't settle for subpar windows or installation services – click below to find the top-rated window companies in your area!

Get your best deal
Quickly compare 4 FREE quotes
  • Quotes from local engineers
  • Payment by finance available
  • Save up to £150 per year
GET QUOTES NOW

It only takes 30 seconds

Earth globe icon
Optimise your home and save the planet
Earth globe icon
Call us to get quotes
We will get you the best deal

Window Frame Materials

When it comes to deciding the right window frames for your home, there are several materials to consider, including uPVC, wood, and aluminium. Here's an overview of each:

uPVC Window Frames

uPVC, or unplasticised polyvinyl chloride, is a popular choice for window frames due to its durability, low maintenance requirements, and affordability. uPVC frames are made from a type of plastic that is resistant to moisture, rot, and insect damage. 

They are obtainable in various colours and styles, making them a versatile option for any home. In addition, uPVC windows provide good insulation and energy efficiency, helping to keep your home comfortable year-round.

Wood Window Frames

Wooden window frames have a classic look and feel that can add warmth and character to your home. They are available in various wood species, including pine, oak, and mahogany. They can also be stained or painted to suit your decoration. 

Wood frames provide excellent insulation and energy efficiency, making them a significant choice for eco-conscious homeowners. However, they do require semi-frequent maintenance, such as painting or staining, to protect against moisture and rot.

Aluminium Window Frames

Aluminium frames are lightweight, strong, and durable, making them popular for modern homes' aluminium windows. They are available in various colours and finishes and can be custom-designed to fit your exact specifications.

Aluminium frames are low maintenance, corrosion-resistant, and provide excellent insulation and energy efficiency. They are also eco-friendly, as they are recyclable and require less energy to produce than other materials. While more expensive than uPVC, there are quite a few options for cheap aluminium windows on the market.

Remember, each material has its own unique benefits and drawbacks. uPVC frames are affordable and low maintenance, wood frames have a classic look and feel but require semi regular upkeep, and aluminium frames are strong, durable, and eco-friendly. Choose the material that best fits your style, budget, and maintenance preferences to ensure you're happy with your window frames for years to come.

So, when choosing a window frame, it's essential to consider the type of window panes that will provide the best protection and insulation for your home. Make an informed conclusion and choose the right window panes to ensure the comfort and safety of your home.

Glass Types And Their Energy Ratings

To replace glass windows, it's essential to know the component of the windows, and the type of glass you choose, which can significantly impact your home's energy efficiency.

Here are some of the most common glass types used in windows, along with their energy ratings:

Low-E Glass

Low-emissivity (Low-E) glass has a thin coating that reflects heat back into the room, making it a high energy-efficient option. Low-E glass can be combined with double- or triple-pane windows to enhance their energy efficiency further. The energy rating for low-E glass varies depending on the number of panes and the type of gas used between the panes.

Toughened Glass

Toughened glass is a class of safety glass that has been heat-treated to increase its strength and durability. It is commonly used in windows, doors, and skylights due to its resistance to impact and thermal stress.

Annealed Glass

Annealed glass is the most basic type of glass. It is created by allowing molten glass to cool slowly, resulting in a uniform thickness and smooth surface. It is often combined with other types of glass, such as Low-E glass, to improve overall energy efficiency.

Acoustic Glass

As the name suggests, acoustic glass is designed to reduce noise levels. It is made by laminating two or more sheets of glass with an acoustic interlayer, which absorbs sound waves. Acoustic glass has an energy rating similar to toughened glass, around 1.6 W/m²K, making it a suitable choice for environments where noise reduction is a priority.

Self-Cleaning

Self-cleaning glass has a special coating that reacts with sunlight to break down and loosen dirt and grime, making it easier to clean. This type of glass has an energy rating similar to annealed glass, around 5.8 W/m²K. While it may not provide the best insulation properties, self-cleaning glass can reduce the need for frequent cleaning and maintenance, making it a popular choice for hard-to-reach areas.

Fire Glass

Fire glass, also known as fire-resistant glass, is a type of glass that can withstand high temperatures and prevent the spread of fire. Fire glass is made by laminating multiple layers of glass with an intumescent interlayer, which expands when exposed to heat, creating a barrier that slows down the spread of flames. Fire glass can have an energy rating ranging from 1.4 W/m²K to 2.2 W/m²K, depending on the glass's number of layers and thickness.

Decorative Glass

Decorative glass is a type of glass that is designed for aesthetic appeal rather than function. Decorative glass can come in various designs and patterns, including etched, frosted, or colored glass. It is often used in areas such as entryways, bathrooms, and kitchens to add a decorative touch to the space. Decorative glass typically has an energy rating similar to annealed glass, around 5.8 W/m²K.

Laminated Glass

Laminated glass consists of two layers of glass bonded together with interlayers, creating a strong and durable composite material. This type of glass can be customised to enhance its energy efficiency or acoustics, depending on the thicknesses, the different combinations of glass or coatings, and the type of interlayer used. One of the notable benefits of laminated glass is its increased safety features, as it remains intact even when broken, providing an additional layer of protection against break-ins or accidents.

Types Of Double Glazed Windows

Double glazed windows are formed from two panes of glass with an air gap in between, providing improved insulation and energy efficiency. Here are some of the diverse types of double glazed windows:

Single-Pane Glass

Single-pane glass is the most basic type of glass used in windows. It is a single sheet of glass that offers very little insulation. As a result, single-pane windows are the least energy-efficient and tend to be less popular in modern construction. They typically have a low energy rating of 1.0 W/sqmK up to 1.2W/sqmK.

However, these options are not currently recommended nor commonly installed due to current building regulations and efficiency standards.

Double-Glazing

Double glazed glass consists of two sheets of glass divided by a layer of air or gas. The air or gas acts as an insulator, reducing heat loss and making double-pane windows more energy-efficient than single-pane windows. The energy rating for double-pane windows ranges from 0.30-0.50.

Components Of A Double Glazed Window

It's also worth noting that many government initiatives can help improve your windows. While they are not specifically/exclusively window grants, you can obtain window improvements as part of them. Most of the prices provided on this page treat double glazing cost as the default because it is the most common design.

Triple Glazing

Triple glazed windows takes energy efficiency to the next level. It consists of three sheets of glass, with two layers of insulating gas or air between them. Triple-pane windows have the highest energy rating, ranging from 0.40-0.70. They offer excellent insulation and can significantly reduce energy costs. This option is becoming increasingly popular in areas with harsh winters or extreme temperatures. It can significantly reduce energy bills and improve home comfort.

Gas-Filled Glass

Gas-filled glass refers to the space between the panes of glass in double- or triple-pane windows. Typically, double/triple glazing is gas-filled to improve its insulating properties and the space is often filled with argon or krypton gas, which has a higher density than air and provides better insulation. The energy rating for gas-filled glass depends on the type of gas used and the number of panes.

Choosing the right glass type for your windows is essential for maximising energy efficiency and reducing your energy costs. Be sure to consider the energy ratings of different glass types and consult with professional glass fitters to determine the best option for your home.

Secondary Glazing

Secondary glazing involves fitting an additional pane of glass to the inside of an existing window, providing an extra layer of insulation and soundproofing. This option is often used in historic or listed buildings where replacing original windows is prohibited. It can also be a more cost-effective solution than replacing entire windows.

There are several types of secondary glazing available, including Aluminium secondary glazing, Wooden secondary glazing, Permanent secondary glazing, Secondary glazing film, Magnetic secondary glazing, and Temporary secondary glazing. 

The best window deals

We understand that searching for the perfect installer can be time-consuming and stressful. That's why we're here to help you find the best deal without any hassle.

We offer a free service that allows you to collect quotes from different installers without any obligation to start. By comparing quotes from diverse companies, you can ensure you get the most reasonable value for your money. You could even save a lot of money in the process.

Our service is easy to use and completely free. Simply get started by filling in our 30-second form. You will then receive quotes from up to 4 local window installers to help you find the Best Double Glazing Deals. With our help, you can make an informed decision and find the best deal to achieve the look and comfort you desire. Just click below to get started now!

Get your best deal
Quickly compare 4 FREE quotes
  • Quotes from local engineers
  • Payment by finance available
  • Save up to £150 per year
GET QUOTES NOW

It only takes 30 seconds

Earth globe icon
Optimise your home and save the planet
Earth globe icon
Call us to get quotes
We will get you the best deal

Frequently asked questions

More on This Topic
How It Works
1
Answer a few simple questions
Describe your requirements by answering some super quick and easy questions
2
Talk to installers
Up to 4 installers will get in touch with you directly
3
Receive up to 4 quotes
Compare quotes and select the best option for you
Become a Partner
Become a Partner We strive to connect our customers with the right product and supplier. Would you like to be part of GreenMatch?