When it comes to home improvement projects, replacing your windows can have a significant impact on your home’s energy efficiency, comfort, and aesthetic appeal. However, with so many options and considerations to take into account, it can be challenging to know where to start. That’s why we’ve created the ultimate list of do’s and don’ts when buying replacement windows.

In this article, we’ll provide you with essential tips and insights to help you make informed decisions and choose replacement windows that meet your needs and expectations.

Whether you’re a first-time buyer looking to buy new windows, or an experienced homeowner after replacement windows to add value to your property, this guide will provide you with valuable advice to ensure your window replacement project is a success.

Do’s of Buying Replacement Windows

When it comes to buying replacement windows, there are several key factors to keep in mind to ensure a successful purchase. In this section, we’ll cover the essential do’s that you should consider before making a decision. From measuring your windows to researching different window types, these tips will help you make an informed choice and avoid costly mistakes.

Do prioritise energy efficiency

When buying replacement windows, one of the most important factors to consider is energy efficiency. Not only will energy-efficient windows help reduce your carbon footprint, they can also save you money on your energy bills. Look for windows with a high energy rating, such as A+ or A++.

These windows are designed with advanced technologies and materials that prevent heat loss and keep your home warm in the winter and cool in the summer. While you’re at it, consider installing efficient double glazing which can also improve energy efficiency.

Do choose the right material

Choosing the right material for your replacement windows is crucial. While uPVC windows and aluminium windows are becoming more common place, we recommend timber as the preferred material for your windows.

Wood is one of the most popular window materials because it’s a beautiful and timeless choice that will instantly add character and warmth to your home, while also offering many practical advantages.

For instance, wood is a natural insulator that can help regulate the temperature inside your home and reduce your energy bills. It’s also a durable and long-lasting material that can withstand harsh weather conditions and resist rot and decay. Additionally, wood is a sustainable and eco-friendly choice, as it is a renewable resource that can be responsibly sourced and recycled.

Do consider the window style

There are several window styles to choose from, including casement, sliding sash, and bay windows. Each style has its own unique features, advantages, and disadvantages, so it’s essential to choose the right style that matches your home’s design and your personal preferences:

  • Casement windows are the most popular style in the UK and are known for their simple and elegant design. They are hinged on one side and can be opened outwards or inwards, making them easy to clean and maintain.
  • Sliding sash windows are a traditional style that is commonly found in older homes and are known for their classic appearance and vertical sliding operation.
  • Bay windows, which protrude outwards from the house, can create additional space and add character to your home.

When choosing a window style, consider the architectural style of your home, the location of the window, and your personal preferences.

For instance, casement windows are ideal for modern homes with clean lines, while sliding sash windows are perfect for period properties. Additionally, some window styles may require more maintenance, or need special window openings, or may be more expensive than others.

Do research the window company

Before choosing a window company, do your research to ensure they have a good reputation and a track record of providing high-quality products and services. Check their reviews and ratings online, ask for references from past customers, and look for industry certifications such as FENSA.

As a company that specialises in wooden windows and doors, at Windows & Doors UK we’re committed to providing top-of-the-line products and services to our customers. Our windows are crafted from the finest materials and designed to be energy-efficient, durable, and long-lasting.

We have an excellent reputation within the industry, with over 4,000 satisfied customers who have left positive reviews and testimonials. We are also certified by industry organizations such as FENSA and the Wood Window Alliance, which means you can trust us to provide high-quality products and services.

At Windows & Doors UK, we pride ourselves on our exceptional customer service. Our knowledgeable and friendly team is always on hand to answer any questions you may have and guide you through the process of selecting and installing your replacement windows.

Do ask about warranties and guarantees

When purchasing replacement windows, consider the warranties and guarantees offered by the window company. A reliable and trustworthy window company should provide customers with a comprehensive guarantee and warranty to cover any defects or faults in the window material or installation.

At Windows & Doors UK, for example, we offer a 10-year guarantee, as standard, on all of our windows. This guarantee covers any manufacturing defects or faults in the window material or installation that may arise during the first 10 years after installation. We also offer a 10-year guarantee on the paint finish of our wooden windows, ensuring that your windows look as good as new for years to come.

We provide our customers with a comprehensive warranty that covers all aspects of the window installation, including the installation process itself. This means in the unlikely event that something goes wrong with your window installation, you can rest assured that we will take care of it.

We understand purchasing replacement windows can be a significant investment, and we want our customers to feel confident and secure in their purchase.

Do consider ventilation options

Good ventilation is essential for maintaining good indoor air quality and preventing mould and mildew growth in your home.

At Windows & Doors, we offer a range of ventilation options to suit your needs. Our windows come with trickle vents, which allow a controlled amount of fresh air to enter your home while still maintaining a high level of security.

Do consider the cost of replacement windows

The cost of new windows can vary significantly based on various factors such as window material, size, and style. However, keep in mind that going for the cheapest option may not always be the best decision in the long run. Cheaper windows may be of low quality, lack durability, and end up costing more in the long term due to repair and replacement costs.

On the other hand, investing in high-quality timber windows can save you money in the long run as they are more durable, energy-efficient, and require less maintenance. We suggest setting a budget that’s reasonable, and to find a balance between cost and quality. Windows & Doors UK provides high-quality wooden windows at competitive prices, ensuring you get the best value for your money.

Do get multiple quotes

By obtaining quotes from different window companies, you can compare prices and ensure you are getting a fair deal. This also allows you to compare the products and services offered by each company, which can help you make a more informed decision.

Keep in mind the lowest price does not always equate to the best value. Be sure to consider the quality of the materials and installation, as well as the reputation and experience of the window company. Ultimately, getting multiple quotes can give you peace of mind and confidence in your purchase decision

Do prepare your home for window installation

Preparing your home for window installation is an important step in ensuring a smooth and stress-free process. Before the installation day, we recommend clearing the work area and removing any items that may get in the way, such as furniture or decorations. This can also include removing any fragile or valuable items from the room to prevent accidental damage during the installation process.

Creating a clear path for the window installers to move around can help to minimise the risk of damage to your home and belongings. It is also helpful to inform the window company of any potential obstacles or challenges that may affect the installation, such as difficult access or narrow hallways. Proper preparation can help to ensure a successful window installation and avoid any unnecessary complications.

Do dispose of old windows responsibly

When replacing your windows, it is important to dispose of the old windows responsibly. This can include recycling or repurposing the materials, donating them to charity, or hiring a professional waste removal service, instead of simply sending them to landfills.

Don’ts of Buying Replacement Windows in the UK

When it comes to replacing your windows, it’s important to know not only what you should do, but also what you shouldn’t do. There are certain mistakes that can be costly, time-consuming, or even dangerous.

In this section, we will explore some of the don’ts when it comes to replacing your windows, so you can avoid these common pitfalls and ensure a successful window replacement project.

Don’t compromise on quality

When it comes to replacing windows, it may be tempting to go for the cheapest option available. However, choosing low-quality windows can end up being a costly mistake in the long run. Poor quality windows often have lower energy efficiency ratings, which can result in higher energy bills.

Additionally, they may require frequent repairs or replacement, leading to higher maintenance costs. Investing in high-quality windows can offer better performance, increased energy efficiency, and long-lasting durability.

Don’t overlook the importance of proper installation

Windows that are improperly installed may cause air and water leaks, energy inefficiency, and even introduce safety hazards. Hire a reputable and experienced window company that employs professional installers.

Proper installation involves not only the fitting of the window into the window frame but also the use of appropriate sealants and flashing techniques to prevent any water or air leaks. Proper installation can help to extend the lifespan of your replacement windows and minimise the need for future repairs or maintenance.

Don’t forget about window maintenance

Regular maintenance is vital to ensure your replacement windows are always in top condition. Failure to maintain your windows can result in a buildup of dirt and grime, which can cause damage to the window frames and glass over time. Clean the frames and glass regularly, preferably every few months, to keep them looking their best.

Additionally, lubricating the moving parts, such as the hinges and locks, can prevent them from becoming stiff or sticking. This will ensure the windows open and close smoothly, without putting undue stress on the frames.

Finally, checking for signs of damage or wear and tear, such as cracks or chips in the glass or frames, can help you address any issues before they become more severe. By taking care of your replacement windows, you can help them last for many years to come.

Don’t fall for the cheapest offer

Although the cheapest offer may appear attractive and may seem like an easy way to save money, it can lead to problems in the long run. Cheap replacement windows may be made from low-quality materials, which can compromise their energy efficiency, durability, and security.

Choosing a window company based solely on the lowest price may mean sacrificing important factors such as reputation, customer service, and warranty coverage. Quality should not be sacrificed for cost, and investing in high-quality replacement windows from a reputable company can provide better long-term value and peace of mind.

Don’t overlook security features

Windows are a common entry point for burglars, so look for windows with secure locks and reinforced frames to prevent unauthorised access. Laminated or toughened glass is also recommended as it can resist breakage and increase the security of your home.

Ignoring security features can leave your home vulnerable to break-ins, which can result in the loss of your valuables and even put your family’s safety at risk.

Don’t forget to ask about the noise reduction properties

Living in a noisy area can be frustrating and disruptive. Double glazed windows, or even triple glazing, or acoustic glass can significantly reduce the amount of external noise that enters your home, creating a more comfortable living environment. Weather seals can also play a role in reducing noise pollution by preventing air leakage, which can carry sound into your home.

Don’t forget about the importance of natural light

Adequate natural light can have a significant impact on the comfort and overall ambiance of your home. Consider the size, orientation, and location of the windows when making your selection. This will help you maximise the amount of natural light that enters your home, which can have numerous benefits, including improved mood, reduced energy costs, and increased property value. Also, consider the type of glass used in the windows, as certain types of glass can affect the amount of natural light that enters your home.

Don’t ignore the benefits of professional advice

Finally, seeking professional advice when buying replacement windows will help you make informed decisions and ensure you you get the best value for your money. Window experts, architects, and interior designers have a wealth of knowledge and experience in the industry, and they can provide valuable insights into the latest trends, products, and technologies. They can also assess your home’s unique needs and recommend replacement windows that fit your style, budget, and performance requirements.

By ignoring the benefits of professional advice, you risk making costly mistakes and choosing replacement windows that do not meet your expectations.

Buy replacement windows from Windows & Doors UK

If you’re looking for high-quality replacement windows to enhance the beauty, security, and energy efficiency of your home, consider Windows & Doors UK. Our experienced team can help you choose the best windows for your needs and provide professional installation services. Contact us today for a free consultation and quote.


How long do replacement windows last?

The lifespan of replacement wood windows depends on various factors, including the quality of the wood, the climate, and how well they are maintained. Generally, high-quality replacement wood windows can last between 20 to 30 years or more if they are well-maintained and protected from moisture and decay.

However, poor maintenance and exposure to harsh weather conditions can significantly reduce their lifespan. Always follow the manufacturer’s maintenance guidelines and perform regular inspections to ensure the longevity of replacement wood windows.

Can I replace my windows myself?

Technically, it is possible to replace your windows yourself, but it is not recommended unless you have significant experience and knowledge in window installation. Window replacement requires specific tools and skills, and any mistakes can result in poor performance, energy loss, or even damage to your home.

It is often more cost-effective and safer to hire a professional window installation company to ensure proper installation and maximize the longevity and energy efficiency of your replacement windows.

How much do replacement windows cost in the UK?

The cost of replacement timber windows can vary depending on several factors, such as the size of the window, the type of wood used, and the level of customisation required. On average, you can expect to pay between £500 and £1,000 per window, including installation.

However, the cost can increase significantly for larger or more complex windows, with prices ranging up to £3,000 or more per window.

Can replacement windows increase the value of my property?

Yes, replacement windows can increase the value of your property. High-quality replacement windows that are energy-efficient and offer enhanced security, noise reduction, and aesthetic appeal can add value to your home and make it more attractive to potential buyers.

In This Article…


Laura Wakeham

Laura is an experienced writer with a background in the construction, wood work and hardwood industry - having written for various nationwide publications including Houzz, Construction Weekly and other more local editorial platforms. With over 10 years experience, Laura has detailed knowledge on the ins and outs of hardwood fabrications from orangeries to conservatories, windows and doors.

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