Blog>Expert Advice>Buying guide: Helping you to choose your uPVC windows
Last updated: 25 September 2024
Buying guide: Helping you to choose your uPVC windows
We share all the important information about buying uPVC windows, to help you make the best choice for your home.
Buying uPVC windows - or any new windows - is a big decision. It's not only a significant financial investment but it's a home improvement that you're unlikely to repeat for many years. We understand the need to get it right.
So from design and style to security and energy efficiency, we're here to guide you through the ins and outs of uPVC windows so you can confidently make the best choice for your home.
What are uPVC windows?
UPVC (Unplasticised Polyvinyl Chloride) is a strong, lightweight, low-maintenance plastic building material that's been used for window frames in the UK since the early '80s.
UPVC windows are a top choice for UK homeowners due to their durability, energy efficiency, and cost-effectiveness.
Why buy uPVC windows?
There are several reasons why uPVC windows continue to be popular, decades on. These include:
Affordability: uPVC windows are typically less expensive than composite or wooden frames, providing great value for homeowners with a smaller budget
Energy efficiency: Modern uPVC windows help to keep your home warm, and provide energy savings too; they're a great choice for heavier, more energy-efficient double or triple-glazing panels
Low-maintenance: Unlike timber frames, which need to be repainted or restained, uPVC windows are virtually maintenance-free, just needing a wipe-down every now and then
Durability: uPVC windows are long-lasting due to their resistance to moisture, rot, and UV rays
Lifespan: Good quality uPVC windows that are professionally installed and well-maintained can last up to 35 years
Security: Modern uPVC windows have multi-point locking systems, bolting into the frame at several points, for a high level of security
Customisation: uPVC windows come in a variety of colours, finishes, and window styles, making it easy to match your home's look and feel
What to look for when buying uPVC windows
We now know what uPVC windows are and their key benefits, but what should you look for when investing in this type of window?
1. Quality and security
When buying uPVC windows (or doors), security should be a top priority. Here are a couple of things to look for to ensure you invest in the best quality uPVC windows your budget allows:
Reinforcement: Check what the window frames are made from. High-quality uPVC windows are reinforced with galvanised steel for added strength
Welded joints: Look for windows with welded joints - they are stronger, more durable, and have better thermal insulation
Frame thickness: For maximum durability and soundproofing, choose frames with a profile thickness of at least 2.5mm
Security features: Check for multi-point locking systems that bolt into the window frame at between three and five points
Other aspects to look for are British Standards BS 7412 and BS 7950, which cover the quality and security of windows and doors.
Those marked as 'Secured by Design' (SBD) have been designed and manufactured to meet rigorous standards of enhanced security performance, as defined by the police.
Lastly, windows with a BSI Kitemark, conform to the minimum legal requirements for security and quality, giving you trust and confidence in the product.
2. Energy efficiency and insulation
One of the main things to check before buying new uPVC windows is their U value. This measures thermal efficiency.
The lower the U value, the better the windows will insulate your home, i.e. keep it warm by reducing heat loss.
All replacement windows in the UK must have a U value of 1.4W/m²K or lower. However, you can opt for even better insulation if energy efficiency is your top priority.
Double or even triple-glazing will offer you better insulation and noise reduction.
The best uPVC windows will have an energy rating of A+ or higher, ensuring they meet the highest efficiency standards.
3. Design and styles of uPVC windows
One of the more obvious things to look for when buying uPVC windows is design and style.
Whether you opt for traditional sash windows or contemporary casement windows, it's key to pick a colour and style that suits your home's architecture.
Casement windows: A very popular type of uPVC window, they're hinged at the side and open outward to let plenty of light and ventilation in. The combination of their handles and seals makes them extremely energy-efficient
Sash windows: A more traditional style often found in period properties. They mimic the elegant look of wooden sash windows but with added durability and energy efficiency
Tilt and turn windows: A modern alternative to casement windows, the tilt and turn variety can either open from a side or bottom hinge depending on how you position the handle. This means you can have a good amount of ventilation without compromising security
Bay windows: Extending out from the wall of your home, bay windows are a charming feature that adds extra space and light to a room
Window types and features: Choose the right style for your home
There are several types of windows available in the UK, each with their own set of pros and cons, efficiency ratings, design options, and price tags.
4. Cost and installation
Compared with other types of window frames, such as composite, wood, and aluminium, uPVC is considered to be the most cost-effective option.
How much do new uPVC windows cost?
When looking for the best price uPVC windows, it's key to weigh up the size, style, energy rating, and specifications you require - you'll find a variance in price depending on these factors. However, on average, you're looking at around:
Casement windows – £500 - £1,250 per window
Sash windows – £700 - £1,500 per window
Tilt and turn windows – £600 - £1,400 per window
Bay windows – £1,100 - £4,000 per window
What about installation costs?
In addition to the cost of the windows, you'll need to factor in the cost of installation. On average, expect to pay in the region of £600 a day for two window fitters.
Request a quote for your uPVC windows
When you're in the market for buying uPVC windows, it's always best to get a selection of quotes to compare.
See the tradespeople we've checked and recommend for your job
How to tell the quality of uPVC windows
We've mentioned quality a lot in this post, but for good reason.
The cost of adding double glazing to a 3-bedroom house, based on roughly 8-12 windows, is around £8,000 - £15,000. That's a significant investment.
Therefore you want to make sure the windows you choose keep your home safe, secure, and well-insulated for as long as possible. When considering where to buy uPVC windows, look for suppliers that have one (or more) of the following:
FENSA registration – to ensure the glazing in your window is energy-efficient and meets building regulations
Membership of the Windows, Doors & Conservatories Group – for assurance they adhere to high standards
Certification from the British Fenestration Rating Council - for verification of energy performance
Don't forget to check out customer reviews, and ask to see previous examples of an installer's work.
Using a professional directory, such as Checkatrade, you can easily compare several uPVC window specialists that we've checked and approved in one handy place.
On Checkatrade, you'll only find trades who meet our high standards and pass up to 12 checks.
What are the best uPVC windows brands in the UK?
Many homeowners buy their uPVC windows from local suppliers to support businesses in their area. However, there are also several national brands with a reputation for high-quality windows, including:
Each brand has its strengths, so it's worth comparing their products against your specific needs.
Durability, energy-efficiency, and security are some of the key comparisons homeowners make when buying uPVC windows.
Do your research to narrow down your selection based on your needs and contact a local uPVC window installer for their advice.
Contact or pay a trade through Checkatrade and you’re covered by our 12-month guarantee of up to £1,000*
Are you looking to upgrade your external doors too?
New windows will instantly up your kerb appeal, but have you considered a matching front door?
A smart-looking exterior could add up to 10% to the value of your home, so upgrading your windows and doors together could be a wise investment.
Our buying guide to uPVC doors provides plenty of guidance to help you choose the best option for your home.
Key takeaways
UPVC windows are cost-effective, durable, low maintenance, energy-efficient, and secure
Available in a range of styles, colours, and specifications, it's easy to find uPVC windows to match your exact requirements
Average prices for UPVC windows range from £1,000 per casement window to £2,500 per bay window
Installation costs normally average around £600 a day for two window fitters
Find a uPVC windows specialist in your area
For more expert advice on uPVC windows and to help choose the best option for your home, contact a local specialist today.
Search your postcode now to see who comes highly rated in your area.
See the tradespeople we've checked and recommend for your job
FAQs
Which uPVC windows are best in the UK?
There are several brands offering top-quality uPVC windows in the UK. When selecting the best option for your home, assess your available budget and compare each brand against the factors that are important to you, such as energy efficiency, durability, and security.
What to look for when buying uPVC windows?
A low U-value (to ensure good energy-efficiency), multi-point locking systems (for added security), and design (to suit your home's architecture) are some of the top priorities homeowners consider, alongside cost.
How do I choose a uPVC window?
Firstly, assess your available budget. Next, list the specifications that are important to you, for example, security, insulation, energy efficiency, etc. Then, decide what colour and style of uPVC windows you want, research the market, and obtain a selection of quotes before you choose a supplier and installer.
See the tradespeople we've checked and recommend for your job