A classic, versatile window that opens outward for fresh air and easy use.
What are the benefits of UPVC windows?
Expert Insight
Choosing the right windows for your home
Windows influence how a home looks and, more importantly, how it feels. You need to consider functionality as well as architectural harmony when selecting your style, ensuring adequate ventilation and light levels in each room.
Energy efficiency and durability are equally important in maintaining a sustainable and comfortable home, and you can count on our UPVC windows for superior insulation and lasting performance. Our wide range of styles includes options for every home and homeowner, and we're on hand to help you choose.
Paul Corras
Installations Manager
at Modern UPVC Windows
Paul oversees installations, bringing practical insight into how windows and doors perform in real homes.
How to design your window
Creating your perfect windows is quick and simple with our window designer tool.
1. Choose your window style and size
Select from various styles and enter your custom dimensions.
2. Use our window designer and get an instant quote
Experiment with frame colour, glazing, handles and other options in real time.
3. Secure Checkout & Fast Delivery
Enjoy a hassle-free checkout, and get your windows delivered quickly.
A Period Home Transformation in Leicestershire
"We wanted something that looked right for the property but also made sense long term. Modern UPVC Windows gave us that balance. The flexibility and the finish were exactly what we were looking for."- Homeowner
Read case study
Why choose Modern UPVC Windows?
We've been manufacturing made-to-measure UPVC windows for over 30 years. And we're proud to produce windows that meet the highest standards of quality, performance and value.
Reliable energy efficiency
Our advanced A+ rated double glazing uses a specialist coating and argon gas filling to reduce heat loss, improve insulation and exceed Building Regulation standards.
We also offer A++ triple glazing with an extra pane of energy-saving Pilkington KS glass in a slimline bead design. Get greater thermal performance without increasing frame thickness.
Crafted with care
Each window goes through rigorous quality-control checks before delivery, so you can count on us for quality.
Find out more about us
Built-in security
We use Yale locking systems along with a free upgrade to shootbolt locks for maximum security. This two-stage locking mechanism allows you to fully lock the window or lock it slightly open for ventilation. Plus, the handles have key locks for added peace of mind.
Advanced glazing
Available in 28mm double or 40mm triple glazing thickness, they achieve U-values from 0.70 to 1.22, exceeding energy performance standards.
Price-match promise
If you find a like-for-like product for less elsewhere, let us know and we'll match it*
*Terms & conditions apply.
Quick delivery & flexible installation
- Delivery only: Have your custom windows delivered straight to your door, ready for installation.
- Professional installation: Book our full service, including survey, fitting and removal and recycling of your old windows.
- Warehouse collection: Prefer to handle it yourself? Collect your order from our warehouse at your convenience.
Comprehensive guarantee
Every window is backed by a clear, multi-part guarantee for your peace of mind:
Frames
10 years on Heritage 2800 profiles (included as standard), covering colour stability, shape retention, and impact resistance.
Sealed Glass Units
10 years against internal condensation.
Moving Hardware
1 year on locks, hinges, handles and similar components.
Astragal Bars
Covered by a 2-year guarantee for added peace of mind.
What window customisation options are available?
With endless style, size, glazing and colour options, you can build a modern UPVC window to match your exact requirements.
Window colours
*Please note bespoke colours may add up to four weeks to delivery times.
Glazing options
You can also personalise your glass with Georgian bars, leaded designs or astragal bars for a traditional look.
Internal blinds
Each option is easy to use and keeps the blinds protected and dust-free inside the glass.
Furniture & hardware
Trickle vents can also be added to allow background ventilation while maintaining security and energy efficiency.
Window gallery
Explore our window gallery for style and design inspiration.
Frequently Asked Questions
How much do new windows cost?
+Can I install the windows myself?
+We also offer professional installation services, available in selected areas, for your convenience. Find out if we can install your windows
How do I measure a window?
+For a helpful guide, download and print our measuring sheet or follow our how-to video.
How long do UPVC windows last?
+Design your new windows
Create made-to-measure UPVC windows with our online designer, customise your options, preview your order and get an instant price.
Need help? Explore our FAQs or contact us for personalised advice.









