FIXED Windows
Product Description
A fixed window contains a sealed glass panel that does not open. Without hinges, handles, tracks, or an operating sash, more of the opening can be dedicated to glass, giving you cleaner sightlines and fewer visual interruptions.
This design works particularly well in living rooms, stairwells, entrance areas, hallways, high wall openings, and spaces overlooking gardens or outdoor views. Fixed panes can also sit beside or above an opening window when you want more natural light without adding another operating section.
Product at a Glance
| Product Detail | Specification |
|---|---|
| Window Type | Custom uPVC fixed window |
| Profile System | Aluplast IDEAL 4000 |
| Operation | Non opening glazed panel |
| Frame Depth | 70 mm |
| Profile Construction | Five chamber uPVC system |
| Profile Thermal Value | Uf 1.3 W/m²K |
| Glazing Capacity | Up to 41 mm |
| Glazing Options | Double glazing or compatible triple glazing |
| Glass Options | Clear, Low E, acoustic, grey, privacy, laminated, and toughened glass |
| Frame Finishes | Classic colours, Woodec finishes, and Aludec finishes |
| Manufacturing | Custom made in Springvale |
| Installation | Supplied and installed by Windows Tech |
Product Performance Highlights
Fixed windows place the focus on glass, insulation, and the view rather than opening hardware.
• Uninterrupted sightlines without handles, hinges, or overlapping sashes
• Greater visible glass area than many comparable opening configurations
• No internal or external clearance needed for operation
• Fewer potential air leakage points because the panel remains fixed
• Strong acoustic potential when paired with suitable laminated glazing
• Natural light for stairwells, hallways, entrances, and high wall openings
• Custom shapes and dimensions subject to glass and structural requirements
• Easy coordination with casement, awning, sliding, or tilt and turn windows
• Minimal hardware maintenance because there are no moving components
• Glass choices for views, privacy, glare, solar control, safety, and noise
What Makes This Fixed Window Different
Frame Colours and Finishes for Fixed Windows
Large fixed panes make the relationship between the glass and frame especially noticeable. Your chosen finish can either create a strong architectural border or blend more quietly with the facade, walls, doors, and interior materials.
Classic Colours
Tropical gives the frame a clean white appearance and keeps the overall design light.
Creme introduces a warmer neutral tone that works naturally with brick, render, timber details, and traditional interiors.
Woodec Timber Inspired Finishes
Sheffield Oak Concrete brings a cooler timber character to contemporary properties.
Turner Oak Malt creates a lighter natural appearance.
Turner Oak Toffee offers a warmer mid tone.
Turner Oak Walnut provides a deeper timber inspired finish for stronger contrast.
Woodec finishes give the frame a timber appearance without routine painting or staining.
Aludec Metallic Finishes
Jet Black and Anthracite Grey form a defined border around broad glass panels.
Basalt Grey, Window Grey, Umbra Grey, and DB703 provide softer metallic alternatives.
Traffic White and Surfmist suit lighter cladding, pale render, and neutral exterior palettes.
How Fixed Windows Work

Fixed windows do not open, but the frame and glazing still need to be configured around the location, orientation, and intended performance.
Step 1: Define the Purpose of the Opening
The first consideration is what the window needs to achieve. A garden facing living room may prioritise a clear view, while a high stairwell window may focus on daylight. Street facing rooms may need greater attention to noise and privacy.
Step 2: Plan the Glass Size and Layout
The pane dimensions depend on the available opening, glass thickness, weight, safety requirements, frame divisions, and installation access. Larger openings may require separate glazed panels rather than one oversized pane.
Step 3: Select the Glass Configuration
Clear glass preserves the view. Low E options can improve insulation or solar control. Laminated and toughened choices address safety requirements, while obscure, acid etched, grey, or white translucent glass can manage privacy and glare.
Step 4: Secure the Insulated Glass Unit
The completed glass unit is fitted into the uPVC frame and sealed around its perimeter. Because the panel remains stationary, there is no operating hardware to adjust during everyday use.

Built for Views, Light, and Consistent Performance
Frame the View Without an Opening Sash
Fixed windows suit rooms where the landscape, garden, courtyard, or skyline should remain the focal point. The absence of opening hardware keeps the glazed area visually simple.
Bring Light Into Difficult Spaces
High walls, staircases, corridors, entrance areas, and internal voids often need daylight but not ventilation. A fixed pane can brighten these spaces without requiring accessible handles or opening clearance.
Support Better Thermal Control
Insulglass units contain two or more panes separated by a sealed cavity, with argon gas used as standard. Low E coatings can further improve insulation and manage solar heat gain, depending on the selected glass range.
Reduce Potential Air Leakage
An opening window requires seals around a moving sash. Fixed glazing removes that operating junction, which can reduce potential leakage paths when the window is correctly manufactured and installed.
Improve Noise Control With the Right Glass
A supplied acoustic estimate gives a uPVC fixed frame an Rw rating of 35 when used with the specified 24.38 mm Insulglass LowE Plus clear laminate unit. This result applies to that particular configuration and should not be treated as the rating for every fixed window.
Manage Privacy Without Losing Daylight
Obscure glass, acid etched glass, grey glass, and white translucent laminate can reduce direct visibility while still allowing light into bathrooms, entrances, side boundaries, and overlooked rooms.
Other Window opening styles we offer.
FAQs

What is a fixed window?
A fixed window is a non opening window with glass secured permanently inside the frame. It is mainly used for natural light, outdoor views, insulation, and architectural glazing rather than ventilation.
Can a fixed window be opened?
No. Fixed windows do not contain an operating sash or opening hardware. Choose an awning, casement, sliding, or tilt and turn configuration where ventilation is required.
Do fixed windows cost less?
Yes, fixed windows generally cost less than operable windows. This is because they have a simpler design with no moving parts or mechanisms, which reduces manufacturing and installation costs.
What is the difference between a fixed window and a picture window?
A fixed window is any glazed window that does not open. A picture window is usually a larger fixed window designed specifically to frame an outdoor view. The terms often overlap, but fixed windows can also be smaller or used within combination layouts.
Are fixed windows more energy efficient than opening windows?
Fixed windows can perform very well because they do not have a moving sash or opening junction. Actual energy efficiency still depends on the frame, glass, U value, solar heat gain coefficient, dimensions, orientation, sealing, and installation.
Are fixed windows good for noise reduction?
They can provide strong acoustic performance because the panel does not open and has fewer potential leakage points. The final result depends on the glass makeup, frame, perimeter sealing, wall construction, and installation.
Which glass is best for a fixed window with a large view?
Clear insulated glass preserves natural light and visibility. Low E glass may be more appropriate where heat gain, heat loss, or glare affects comfort. The correct choice depends on the window orientation and how the room is used.
Where should fixed windows be installed?
They work well in living rooms, dining areas, stairwells, hallways, entrances, high walls, and spaces overlooking gardens or views. A room that needs fresh air should also have an opening window, door, or another suitable ventilation source.
Can a fixed window be combined with an opening window?
Yes. Fixed panes can form part of a larger layout with awning, casement, sliding, or tilt and turn windows. The fixed section provides glass area and light, while the opening section provides ventilation.
Are fixed windows suitable for replacing old timber or aluminium windows?
Yes, subject to the condition of the opening and surrounding structure. Windows Tech measures the area before manufacturing the replacement uPVC frame to the confirmed dimensions.
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