uPVC Windows
Secure, energy-efficient and low-maintenance uPVC windows for South African homes, manufactured in Gauteng and available in both standard and custom-made sizes.
Find the right uPVC window
for your space.
From practical casement-style windows to sliding and tilt & turn designs, our uPVC windows are manufactured in Gauteng for South African homes and projects.
Choose from standard sizes or speak to us about a custom-made window to suit your opening.
Side Hung uPVC Windows
Hinged vertically and opening from the side, these versatile casement-style windows provide generous ventilation and a clean, practical design for everyday living.
Top Hung uPVC Windows
Hinged along the top and opening outward from the bottom, top-hung windows offer controlled ventilation in a compact, practical window configuration.
Sliding uPVC Windows
Smooth horizontal opening makes sliding uPVC windows a practical choice where an outward-opening sash is not ideal, while maintaining a neat, modern appearance.
Tilt & Turn uPVC Windows
A versatile window that can tilt inward for controlled ventilation or open more fully for easy access, combining flexibility with contemporary uPVC design.
Tell us about your opening, room or project and we'll help you choose the most suitable uPVC window configuration.
Two uPVC window ranges.
One made for your project.
Not every home or project needs the same specification. Our EcoLine and UltraLine window ranges give you a choice between excellent everyday value and a more premium uPVC window system — without compromising on the benefits that make uPVC such a smart choice.
EcoLine
Smart performance. Better value.
EcoLine is our accessible uPVC window range for homeowners and projects looking for the practical benefits of uPVC at a more affordable price point. It is a strong choice for everyday residential applications, renovations and new builds.
- Single or double glazing options
- Side hung and top hung window designs
- Sliding window options available
- Low-maintenance uPVC construction
- Available in a choice of frame colours
UltraLine
Premium specification. More possibilities.
UltraLine is our premium uPVC window range for projects where enhanced specification, greater design flexibility and additional window configurations are important. It is particularly well suited to premium homes, renovations and more demanding window applications.
- Single or double glazing options
- Side hung and top hung window designs
- Tilt & turn window configurations
- Sliding window options available
- Multi-point locking options on selected configurations
The frame, glazing, seals and locking system work together to create a window designed for greater comfort, security and long-term performance.
Better comfort starts at the window.
A well-designed uPVC window does far more than bring light into your home. From thermal efficiency and security to weather resistance and everyday maintenance, uPVC windows are designed to perform as part of the building — while still looking clean, modern and refined.
Energy Efficient
uPVC is naturally low-conductivity, helping to reduce unwanted heat transfer through the window frame and improve overall thermal comfort.
Secure by Design
Strong window construction, lockable handles and integrated locking hardware help form part of the complete window security system.
See how our uPVC window security features work →Weather Resistant
uPVC does not rust or rot and is well suited to windows exposed to changing weather conditions, sun and rain.
Low Maintenance
No routine painting is required. The smooth uPVC surface is easy to clean and designed for fuss-free everyday maintenance.
Quieter Interiors
The window system, seals and appropriate glazing can help reduce outside noise and create a calmer, more comfortable indoor environment.
Glazing Options
Choose single or double glazing depending on your window range, configuration and performance requirements.
Glass, seals and frame work together.
A uPVC window performs as a complete system — not simply as a pane of glass fitted into a frame. The glazing, seals and profile all contribute to the performance of the finished window.
Choose the glass that suits the way you live.
The glazing you choose has an important influence on the comfort and performance of your windows. Our uPVC window systems can be specified with single or double glazing, depending on the range, window configuration and the needs of your project.
More comfort starts with the complete window.
Double glazing is most effective when the glass, frame, seals and window configuration are considered together. That is why we look at the complete window specification rather than treating the glass as a stand-alone feature.
The performance you want. In a colour that suits your home.
uPVC windows do not have to mean white frames. Our window ranges are available in a selection of contemporary frame colours, giving you more freedom to coordinate your windows with your home's architecture, finishes and overall style.
Frame Colour Options
Five contemporary frame colours.
From crisp white to deeper architectural tones, choose a frame finish that works naturally with the character of your home or project.
Colour availability may depend on the uPVC range and window configuration selected.
Colours shown on screen are an indication only and may vary from the actual uPVC profile finish.
Different materials.
Different strengths.
uPVC and aluminium can both be excellent window materials. The right choice depends on the look, performance and priorities of your project. Understanding the differences makes it easier to choose a window system that suits the way you want to live.
Which window material is right for your project?
There is no single answer for every home. Aluminium is valued for strength and slim architectural profiles, while uPVC is particularly attractive where thermal performance, low maintenance and everyday comfort are important.
Naturally low-conductivity frame material, helping reduce heat transfer through the frame.
Highly conductive by nature; thermal performance depends strongly on the window system design.
A more substantial profile with clean, contemporary frame finishes.
Well known for slim sightlines and a crisp, architectural appearance.
No routine painting required and easy to clean for everyday maintenance.
Also low maintenance when a suitable quality finish is specified.
Available with single or double glazing depending on range and configuration.
Can also accommodate a variety of glazing specifications depending on the system.
Does not rust or rot and is designed for long-term exterior window applications.
Strong and durable with performance influenced by the system, finish and installation.
The combination of an insulating frame, effective seals and appropriate glazing makes uPVC particularly well suited to projects where indoor comfort and energy efficiency are priorities.
Start with what matters most to your project.
Tell us about your window sizes, preferred style, glazing requirements and performance priorities and we'll help you choose a suitable uPVC window specification.
Practical performance, designed into every window.
Window style, glazing, seals, locking and frame specification all work together to influence comfort, security and everyday performance.
Tell us about the windows you need.
Send us your sizes, plans or project requirements and we can help you choose the most suitable window style, range, glazing and frame colour.
Request a Window Quote →Questions about uPVC windows?
Here are some of the questions we are most often asked about uPVC windows, glazing, colours, security, maintenance and choosing the right window system for a Johannesburg home or project.
Are uPVC windows energy efficient?
Yes. uPVC is naturally a low-conductivity material, which means the frame itself helps reduce heat transfer. The overall thermal performance of a window also depends on the glazing, seals, window configuration and installation. Double glazing can further improve thermal comfort where a higher-performance specification is required.
Can uPVC windows be double glazed?
Yes. Our uPVC windows can be specified with single or double glazing depending on the window range and configuration. EcoLine and UltraLine offer different glazing capacities, allowing the window specification to suit the performance requirements and budget of the project.
Are uPVC windows secure?
Security depends on the complete window system rather than the frame material alone. uPVC windows can incorporate secure locking hardware, robust profiles, suitable glazing and effective closing points. Correct specification and installation also form part of the overall security performance.
What styles of uPVC windows are available?
Our uPVC window range includes side hung, top hung, sliding and tilt-and-turn configurations. Side hung and top hung windows are casement-style options, while sliding windows provide a space-saving opening system. Tilt-and-turn windows offer two different opening functions in one window.
What colours are available for uPVC windows?
Current frame colour options include White, Jet Black, Anthracite Grey, Matt Stone Grey and Sepia Brown. Colour availability can depend on the selected range and window specification, so it is best to confirm the required finish when requesting a quotation.
What is the difference between EcoLine and UltraLine windows?
EcoLine is our value-focused uPVC window range, designed to offer strong everyday performance at a more accessible specification. UltraLine is the premium range and offers a broader specification for projects requiring additional glazing, configuration or finish options.
Are uPVC windows low maintenance?
Yes. uPVC does not require routine painting and it does not rot or rust. Normal maintenance generally involves keeping the frames, glass, drainage areas and operating hardware clean, together with periodic checks of moving components.
Can you manufacture custom-size uPVC windows?
Yes. We manufacture both standard and custom-size uPVC windows. Final sizes and available configurations depend on the selected window style, profile system, glazing and overall specification. Custom manufacturing is especially useful for renovations, replacement windows and new-build projects.
Are uPVC windows better than aluminium windows?
Neither material is automatically the better choice for every project. Aluminium is valued for strength and slim architectural sightlines, while uPVC is particularly attractive where thermal insulation, low maintenance and indoor comfort are important priorities.
Who manufactures your uPVC windows in Johannesburg?
uPVC.co.za is the uPVC offering of K Parker Joinery. Our uPVC windows are manufactured in Gauteng and backed by the manufacturing experience of K Parker Joinery, established in 1997.
Tell us what you need.
We’ll help with the rest.
Whether you are replacing existing windows, renovating a home or planning a new project, send us your requirements and we can help you choose the right uPVC window style, range, glazing and frame colour.
uPVC.co.za by K Parker Joinery
Backed by the manufacturing experience of K Parker Joinery, established in 1997.
Request a quotation
Send us as much information as you have. Sizes, plans, photographs or a simple description of what you need can all help us understand your project.