The No 1 Replacement Windows Buying Guide


A Quick Guide to Buying Replacement Windows

Are your utility bills higher than usual? Do you shiver through chilly winter nights? Do you notice condensation in places where it shouldn’t be?

If you answered yes to any of these questions, you might require replacement windows.

While some of these issues may seem trivial, they can become costly if left unattended. Damp, mould and rot are severe problems with older windows past their due-by date.

If you think it’s time to upgrade your windows, it’s best to act fast.

Find out all the information you need right here.

Types of Double Glazing Windows

Double glazed windows provide better insulation by trapping air between two panes of glass. The trapped air creates an insulating barrier preventing the transmission of air temperature. Therefore, preventing condensation from occurring.

Selecting the right window for your home will depend on how you would like the window to function within the home.

Here are the most common types of double glazed windows available.

Double-Hung Windows

A double-hung window is a type of window that has two operable sashes that slide upwards and downwards. Double-hung windows allow you to enjoy the benefits of natural light and allow fresh air into your home. This includes areas with limited opening spaces.

Single-Hung Windows

A single-hung window has an upper and lower sash, but only the lower sash can move. The upper sash is fixed. Therefore, it cannot be opened.

Single-hung windows are much cheaper to order and install than double-hung windows. They also provide more energy efficiency against air leaks.

Tilt-Out Windows

Tilt-out windows are single pane windows that only open outwards. They are typically operated by a handle that allows the window to open and close with a single motion. Casement, awning, and hopper windows are all types of tilt-out windows.

Sliding Windows

Sliding windows have sashes that slide left or right in either direction in a single frame. They allow for large horizontal openings and bring more airflow and light into your home. Sliding windows are low maintenance and easy to operate.

Bay and Bow Windows

Bay and bow windows are designed for the architecturally minded. Bay windows are three windows placed at sharp angles, extending outward.

Bow windows are made up of three or more windows and placed side-by-side. Bow windows are typically more oversized, are curved and have more glass area.

Types of Double Glazing Frames

Double glazed windows are typically timber, aluminium, or unplasticised polyvinyl chloride (uPVC). The type of frame can affect the window’s insulation properties.

Each frame has its pros and cons, so it is essential to choose the right one.


uPVC windows are the most common material used in double glazed window frames. uPVC window frames are extremely low maintenance. They are long-lasting and durable.

uPVC is a natural insulator which means less reliance on air conditioning units and heaters to control the temperature in your home.


Wood window frames are just as durable and long-lasting as any other window frame on the market. Hardwood frames will suit older-style homes. However, they do require regular treatments to stop deterioration.

On the other hand, softwood is cheaper than hardwood and perfectly suited for contemporary-style homes. However, it will need to be replaced more often than any other frame type.


Aluminium window frames are popular because they are strong, lightweight, and durable. They are affordable with a sleek and contemporary design, making them perfect for modern properties.

The only drawback is that aluminium is not very insulating and cannot withstand extreme weather.


Composite window frames are the latest additions to the window frame market. Composite windows combine a timber window’s aesthetic design but have aluminium cladding for easier maintenance and durability.

They have many similarities to uPVC windows, meaning they will not warp, rot, or expand in extreme heat or bitter cold.


Fibreglass windows are composed of glass fibres and resin. These are materials that warp or shrink very little with extreme temperature changes. They are energy-efficient, long-lasting, durable, and low maintenance.

Benefits of Replacement Windows

Many homeowners shy away from replacing windows because they aren’t aware of all the benefits that come with them.

Here are five benefits of replacement windows that you can enjoy from day one.

1. Improved Energy Efficiency

Energy-efficient windows work by preventing heat loss, meaning you spend less money heating your home. The increased insulation reduces home energy usage and provides comfort and noise reduction.

2. Increased Home Value

Prospective buyers are more likely to buy a home if they know its windows have been recently replaced. If you’re thinking about selling, replacing your windows may help you appeal to more buyers.

3. Increased Home Security and Safety

Replacing your windows is one of the most effective ways to improve the security of your home. Older windows make it easier for someone to enter your home, especially if they don’t open or shut easily.

4. Easy Maintenance

uPVC frames are extremely low maintenance. It only takes a simple wash with soapy water to keep your uPVC frames looking brand new for years to come. No sanding, varnishing, or painting is required.

5. UV Protection

Most replacement windows are almost always double-glazed and are better suited to keep the UV rays out. This lets the windows let a nice amount of light in but blocks the harmful UV rays from damaging your furniture.

Looking for the Best Replacement Window Company?

If your electricity bill gives you a shock every time you open the letterbox, it’s time to get replacement windows.

Improve your energy efficiency, increase your home value, and reduce noise pollution.

For the best window fitters on this side of the pond, choose GAP Home Improvements Ltd. Our trustworthy professionals provide window repair and installation services to improve the security, insulation, and aesthetics of your home.

Visit our showroom or give us a call today.

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