23 October 2026
A FENSA Installer’s Guide: Should You Choose uPVC or Timber Windows?
Timber windows were once a standard choice for homeowners, valued for their traditional appearance and natural character. However, modern window technology has changed considerably, and UPVC windows are now a much more common choice for properties across the UK. Offering excellent quality, longevity, durability, and low maintenance requirements, UPVC provides practical benefits that make it particularly well suited to modern homes.
At Premier Windows, one of London’s leading window suppliers and installers, we provide a range of high-quality window types, including UPVC windows. We explore why UPVC windows offer better quality than timber, how they can replicate its traditional appearance, and why you should choose Premier Windows.
Why UPVC Windows Offer Better Quality than Timber
While timber was once a popular choice for its traditional appearance, homeowners are now more aware of its drawbacks. Timber requires a lot more care to maintain its condition and performance, and it can be susceptible to issues such as mould, rotting, and warping. UPVC eliminates these concerns, offering a strong, low-maintenance alternative.
UPVC suits the demands of modern homes, offering advantages like improved durability, thermal efficiency, and easier upkeep. These benefits have made UPVC windows a more popular choice for homeowners seeking quality, reliable performance and longevity.
Greater Durability and Longevity
UPVC is a durable material designed to withstand everyday use and changing weather conditions. Unlike timber, it is not susceptible to issues such as rotting and is much less likely to warp or swell when properly installed and maintained. This makes UPVC a reliable long-term choice for homeowners who want windows that keep performing well for many years.
Excellent Thermal Efficiency and Performance
Modern UPVC windows provide excellent thermal efficiency, which helps to reduce heat loss through your windows and maintains a more comfortable temperature inside your home. Combined with double glazing, which comes standard from Premier Windows, UPVC can improve insulation and energy efficiency. Triple and secondary glazing is also available for homeowners looking for enhanced thermal performance from their new windows.
Lower Maintenance Requirements
Another key advantage of UPVC is how little maintenance it requires compared with traditional timber. Timber windows may need regular painting, staining and treatment to protect them from the elements and maintain their appearance. UPVC, however, is easy to clean and does not require the same level of ongoing maintenance. This lets homeowners enjoy attractive, reliable windows without the time and effort of maintaining timber.
How UPVC Can Replicate the Appearance of Traditional Timber Styles
Modern UPVC windows replicate the look of traditional timber windows, giving homeowners the same classic appearance with the practical benefits of UPVC. Whether you want the traditional look of sash windows or the clean lines of casement windows, UPVC can be designed to closely match the appearance and proportions of timber alternatives.
This makes UPVC suitable for traditional and period-style properties as well as modern homes. With a range of colours available, you can also choose a UPVC finish that complements your property. Our UPVC range at Premier Windows combines traditional aesthetics with the durability, performance and low maintenance of modern window materials.
Why Choose Premier Windows for Your UPVC Windows?
With over 27 years of experience, Premier Windows has built a strong reputation for supplying and professionally installing high-quality windows and doors across South London and the surrounding areas. Over the last year, we have installed over 720 uPVC sash windows, helping homeowners enhance their properties with windows that combine traditional style, lasting durability and modern performance.
We have been FENSA-accredited since 2002 and were the second company to register with FENSA, demonstrating our long-standing commitment to professional standards and quality workmanship. Our experienced surveyors have extensive knowledge of the windows and doors industry, ensuring your UPVC windows are accurately measured and specified for your property. From your initial enquiry through to installation and aftercare, our team provides expert advice and a straightforward, no-pressure service.
Our Experience with UPVC Windows
We have extensive experience supplying and installing UPVC windows across London, completing projects for a wide range of homes and properties. Our team has installed UPVC windows in terraced houses, semi-detached homes, detached properties, and flats, giving us experience across different property types.
We have also worked on modern and more traditional properties, with UPVC windows available in different styles and colours to complement different homes. Our experience across a wide range of UPVC window projects demonstrates our knowledge and expertise, allowing us to provide professional advice and high-quality installation tailored to each property’s requirements.
Customer Story: Why Local Homeowners Choose uPVC Over Timber
Why do local homeowners decide to swap their old wooden windows? Is it the ongoing painting and upkeep or the draughts? We found that 9 out of 10 customers who visit our showroom and discuss their options with our office team choose uPVC over timber. The ease of maintenance, seamless frames and potential cost savings are the main reasons customers choose our uPVC sash windows.
What Our Installation Team Finds in Older Timber Windows
Our experienced installation team often finds timber window frames falling apart when removing old windows. Over time, as paint begins to flake, moisture can penetrate the timber, causing it to weaken and become fragile.
This can compromise the frames’ structural integrity and may contribute to damp-related issues and mould growth, posing risks to both the property and the occupants’ health. Replacing deteriorating timber frames with uPVC sash windows can help reduce these maintenance concerns for years to come.
How uPVC Windows Stand Up to Local Weather
Although both uPVC and timber windows provide insulation when properly installed, we find that uPVC windows offer better draught-proofing. The rubber gaskets and brush seals help prevent cold air and wind from entering your property, reducing draughts and helping to maintain a more comfortable indoor temperature throughout the year. This can be especially beneficial during colder months, when keeping warm air inside helps make your home more comfortable.
Faster Installation Times
Our uPVC sash windows at Premier Windows can be installed within just three weeks of the survey date, around nine weeks sooner than our timber alternatives. This means you can enjoy your new windows sooner without the longer lead times associated with traditional timber frames. A quicker turnaround also helps you plan your home improvements with less waiting time.
Transform Your Home with UPVC Windows from Premier Windows
By choosing UPVC windows from Premier Windows, you can enjoy the benefits of this durable, versatile material, along with expert advice and professional installation. Browse our range of UPVC window options on our website, including sash, flush casement, casement, tilt and turn, and our Residence Collection, to find the right UPVC option for your home.
With different window styles, frame colours, and glazing options available, you can achieve the look you want while improving your windows’ overall performance. All our UPVC windows come with double glazing as standard, with triple and secondary glazing also available. Our team professionally supplies and installs UPVC windows across London, working closely with you throughout the entire process, from your initial enquiry through to installation and aftercare.
Contact Premier Windows Today
If you would like to discuss our UPVC windows in further detail or place an order, contact us today. We provide free quotes for all our windows, so you know the price upfront before you decide. Send us a message using our contact form, and we’ll get back to you shortly, or call us on 020 8683 4446 or email sales@premierwindows.ltd.uk
