Yes, replacement windows are typically installed from the inside in the UK. This is to ensure a secure and weather-tight fit, and to comply with building regulations.
When installing replacement windows in the UK, many homeowners wonder whether the windows should be installed from the inside or the outside of their property.
In this article, we will explore the different factors that can influence this decision, such as climate, window type, and accessibility, as well as the cost of replacement windows and how to choose the right installer for the job.
Window Installation Methods
Installing windows from the inside is possible in certain situations, such as when exterior access is limited, or wall construction prevents outside installation. This method can be more challenging, requiring precise measurements, careful insulation, and proper sealing to ensure a high-quality result.
Professional installers often prefer to install windows from the outside to minimize mess and disruption and adequately seal and weatherproof the frame. This method is more common and typically results in a faster and easier installation.
Factors Affecting Window Installation
The local climate can play a role in deciding whether to install windows from the inside or outside. In colder climates, installing windows from the inside can help seal against cold air, while in warmer temperatures, outside installation may allow for better airflow and cooling.
The type of window being installed can also impact the installation method. Casement windows open outwards and are easier to install from the outside, while double-hung windows open inwards are more suitable for inside installation.
If it is difficult to access the outside of the property, such as in a high-rise building or when there are obstructions, inside installation may be the only viable option.
Houses in the UK may have walls with different hole sizes for the inner and outer walls, which can affect the installation method. In England, where the hole size is generally the same all the way through, windows can be installed from inside or outside.
Replacement Window Costs
The cost of replacing windows in the UK can range from £500 to £3,200 per window, depending on the frame material, size, and style. You should obtain multiple quotes from reputable installers to ensure you receive the best value for your investment.
GET A FREE NO-OBLIGATION QUOTE TODAY
Choosing the Right Window Installer
When selecting a window installer, consider their experience, certification and licensing, warranty, communication, and price. Look for installers who are members of FENSA and offer a fair price for quality workmanship and reliable service. For more guidance on how to determine the quality of a window, you can read our post on how to tell if a window is good quality.
Preparing for Window Replacement
Before the installation, prepare the area by removing any furniture, window treatments, and wall decor that could obstruct or get damaged during the installation process. Ensure that the entrance to your property is clear of any vehicles, plants, or garden furniture to provide easy access for the installation team.
The window replacement process typically involves the following steps:
- Choosing replacement windows
- Measuring existing windows
- Preparing the area
- Removing the old window
- Cleaning and preparing the opening
- Installing the new window
- Trimming and sealing the window
- Testing the window
A straightforward window installation can take around an hour, with 3-4 windows being replaced per day as a minimum.
Window Types and Installation
Casement windows are hinged on one side and open outwards, making them more suitable for outside installation. This type of window allows for easy access to the exterior for sealing and weatherproofing.
Double-hung windows have two sashes that slide vertically within the frame. These windows are generally easier to install from the inside, as they open inwards and require less exterior access.
Window Replacement in Flats and High-Rise Buildings
In cases where traditional scaffolding is not feasible, such as when replacing windows in blocks of flats or high-rise buildings, some companies offer alternative methods for a window replacement that can save on costs and time. These methods may involve installing windows from the inside or using specialized equipment to access the exterior of the building.
Energy Efficiency and Aesthetics
New windows can improve your home’s energy efficiency and aesthetics, providing a link between indoor and outdoor living. When choosing replacement windows, consider the type of window that best suits your needs and the material, design, and energy efficiency ratings. If you’re considering double-glazed windows, you might be interested in our post about how long double-glazed sealed units last.
A FENSA certificate ensures that your replacement windows and doors meet basic standards, are energy-efficient, and comply with building regulations. This certificate is essential when selling your home and should be provided by your window installer upon job completion.
Timeline for Window Replacement
The timeline for window replacement depends on various factors, such as the number of windows being replaced, the complexity of the job, and the weather conditions. Generally, a window installation project can take days to weeks, depending on the project’s specifics.
Clean-up and Aftercare
Professional window installers should clean up after themselves and ensure your property is left in a tidy state. They will also typically remove the old windows and recycle any waste materials.
In summary, replacement windows can be installed from the inside or outside in the UK, depending on factors such as climate, window type, accessibility, and wall construction. It is essential to choose a reputable window installer and obtain multiple quotes to ensure you receive the best value for your investment.
Do I need to be present during the window installation?
While being present during the entire process is unnecessary, it is a good idea to be available for consultation and to answer any questions the installers may have.
Can I replace my windows one at a time?
Yes, you can replace your windows individually, which can help spread the cost and disruption over a more extended period.
How do I know if my window installer is FENSA registered?
You can check the FENSA website or ask the installer for their FENSA registration number to verify their membership.
How do I maintain my new windows?
Regular cleaning and maintenance, such as checking seals and lubricating moving parts, can help prolong the life of your new windows.
What are the benefits of energy-efficient windows?
Energy-efficient windows can help reduce heat loss, lower energy bills, and improve the overall comfort of your home. They also contribute to reducing your carbon footprint and can increase the value of your property.