Collection: Fixed Frame Windows
When the view is the star, fixed windows frame it perfectly while flooding your home with natural light and delivering exceptional energy efficiency.
With slim sightlines and minimal maintenance, fixed frame windows also deliver superior thermal performance. Any of our inward or outward opening window profiles can be configured as fixed frames, giving you complete flexibility to match your architectural vision.
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Outward Opening Alu-Clad Window (P11A)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Outward Opening Timber Window (P11T)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Inward Opening Timber Window (P13T)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Outward Opening Alu-Clad Window (P21A)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Outward Opening Timber Window (P21T)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Outward Opening Alu-Clad Window (P31A)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Outward Opening Timber Window (P31T)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Outward Opening Alu-Clad Window (P32A)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Inward Opening Alu-Clad Window (P33A)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Inward Opening Timber Window (P33T)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Outward Opening Alu-Clad Window (P41A)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP -
Inward Opening Alu-Clad Window (P44A)
Regular price £0.01 GBPRegular priceUnit price / perSale price £0.01 GBP
Explore our full windows range
Our Window Selector lets you explore every window in our range. Filter by glazing type, frame material, opening options, and Passive House suitability to find exactly what your project needs.
Inward or Outward Opening
The perfect window opens the right way for your climate, architecture, and how you live.
Most windows are either inward or outward opening. Whether you choose traditional outward opening designs - developed for harsh climates where wind pressure enhances sealing - or contemporary inward opening styles that offer easier cleaning and larger configurations, every option maintains our uncompromising standards for comfort and energy efficiency.
TOP HUNG
SIDE HUNG
FULLY REVERSIBLE
TILT-IN
TURN-IN
TILT & TURN
FIXED FRAME
TOP HUNG
Perfect for high-level ventilation and privacy, top hung windows open outward from the bottom with built-in friction brakes.
Ideal for bathrooms and kitchens where you want fresh air with privacy, as cool air flows in below while warm air escapes above. The design maintains excellent thermal performance and energy efficiency through advanced sealing systems.
SIDE HUNG
Our versatile side hung windows open outward on side hinges, offering maximum opening area and excellent ventilation without taking up internal space.
The classic choice for most residential applications, providing excellent ventilation control and unobstructed views. Multi-point locking systems ensure security while maintaining the sleek aesthetics that complement both traditional and contemporary homes.
FULLY REVERSIBLE
Clean your windows safely from inside with fully reversible operation, rotating 180 degrees for complete access to both sides of the glazing.
Particularly valuable for upper floors and hard-to-reach locations, these windows rotate completely, eliminating the need for external cleaning access. They feature weatherproof sealing and varied ventilation options as users can control airflow from multiple angles.
TILT-IN
Tilt-in operation provides secure ventilation by opening inward from the top, creating a controlled airflow while maintaining security and safety.
Ideal for anywhere you want ventilation with security, a gentle inward tilt from the top edge of the window delivers fresh air while the restricted opening prevents accidental falls. The perfect combination of effective airflow, easy operation and energy efficiency.
TURN-IN
The inward opening complement to side hung windows, turn-in windows swing inward on side hinges for full access, ventilation, and easy cleaning.
Opening fully inward from side hinges, these energy-efficient windows provide complete access and maximum airflow with convenient cleaning from inside. Perfect for living spaces where you want the option of wide-open connections to the outdoors.
TILT & TURN
Combining two opening modes in one window, tilt & turn offers gentle top ventilation or full side opening for maximum versatility and control.
The ultimate in window functionality, offering both tilt-in ventilation for secure airflow and full turn-in opening for cleaning and maximum ventilation. Simply turn the handle to switch between modes, giving you complete control over your indoor environment.
FIXED FRAME
When the view is the star, fixed windows frame it perfectly while flooding your home with natural light and delivering exceptional energy efficiency.
With slim sightlines and minimal maintenance, fixed frame windows also deliver superior thermal performance. Any of our inward or outward opening window profiles can be configured as fixed frames, giving you complete flexibility to match your architectural vision.
Our Door Range
Create a lasting impression with bespoke, premium doors that deliver superior insulation, security, and timeless design appeal.
Our precision-engineered entrance and patio doors seamlessly blend form and function, offering exceptional weather protection and energy efficiency. Discover how the right door can enhance both your home's comfort and curb appeal.
Which windows are right for you?
Take our short survey to discover the perfect windows for your project.
Inspiration for your project
From heritage transformations to scandinavian-style passive houses, discover how Norrsken windows and doors transform exceptional homes into extraordinary spaces.
Whether it's converting industrial barns into a contemporary sanctuary or pushing the boundaries of sustainable design in passive houses, our projects span every architectural vision. See how our windows and doors brought your Norrsken neighbours' visions to life.
GALLERY
Your Questions Answered
Have a question? You're not alone. We've answered some of the most common questions about our fixed frame windows below, drawing from years of expertise helping homeowners and professionals achieve their vision.
Can't find what you're looking for? Email the team.
Collapsible content
Do fixed frame windows achieve better U-values than opening windows?
Fixed frame windows typically achieve marginally better whole-window U-values than equivalent opening windows, because they have no operating hardware or seals that introduce thermal bridging or potential air infiltration points.
The difference is small in high-quality systems, but for maximum glazing performance in a specific area of the building envelope, fixed frames are the most efficient specification.
Why would I choose a fixed window instead of an opening one?
Fixed windows are specified where ventilation is provided by other means (such as MVHR in a Passive House, or adjacent opening windows), where maximum daylighting is the priority, or where structural or safety conditions restrict opening sashes.
They also allow larger glazed areas than most hardware-limited opening configurations, are usually cheaper in like-for-like comparisons, and deliver slightly superior thermal performance.
Can fixed frame windows be combined with opening windows in the same elevation?
Yes. Fixed and opening frames can be combined within the same profile system, maintaining consistent sightlines and finishes across a mixed elevation.
This is common in large contemporary glazing compositions where some lights are fixed for structural or aesthetic reasons and adjacent lights are opening for ventilation.
Are fixed frame windows suitable for Passive House?
Yes. Fixed frames are frequently used in Passive House projects for areas where mechanical ventilation via MVHR provides the required air change rate, eliminating the need for opening windows in those locations.
A fixed frame in a Passive House-specified profile achieves whole-window Uw values matching or slightly exceeding the equivalent opening window in the same system.
Can any Norrsken window profile be specified as a picture window?
Yes. Any inward or outward opening profile in the Norrsken range can be configured as a fixed frame, maintaining visual consistency across a mixed elevation.
This gives complete design flexibility: fixed lights can match the dimensions and finishes of adjacent opening windows.
Are fixed frame windows secure?
Yes. Fixed frame windows cannot be opened from either side, making them inherently secure at the glazing perimeter.
The glazed unit itself may use toughened or laminated glass as appropriate for the installation height and risk category, in accordance with Building Regulations Approved Document N (glazing safety).
Helpful Resources
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The case for all-timber windows & doors
Timber windows can match aluminium-clad on thermal performance and cost less. Here's when to specify them, and when alu-clad is the best choice.
The case for all-timber windows & doors
Timber windows can match aluminium-clad on thermal performance and cost less. Here's when to specify them, and when alu-clad is the best choice.
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Are alu-clad timber windows and doors worth it?
Guidance on when aluminium-clad timber composite windows make sense – and when they don't. Performance, cost, and longevity compared.
Are alu-clad timber windows and doors worth it?
Guidance on when aluminium-clad timber composite windows make sense – and when they don't. Performance, cost, and longevity compared.
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St Michael's Centre Shortlisted for 2025 IStruc...
IStructE 2025 shortlist: St Michael's Centre, Fulham - a low-carbon retrofit featuring bespoke Norrsken glazing systems.
St Michael's Centre Shortlisted for 2025 IStruc...
IStructE 2025 shortlist: St Michael's Centre, Fulham - a low-carbon retrofit featuring bespoke Norrsken glazing systems.
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Meadow Bank: Passive House Principles in a RIBA...
Architect interview: RIBA-shortlisted single-storey home near Bath, designed by MJW Architects around Passive House principles and Norrsken triple-glazed alu-clad windows and doors.
Meadow Bank: Passive House Principles in a RIBA...
Architect interview: RIBA-shortlisted single-storey home near Bath, designed by MJW Architects around Passive House principles and Norrsken triple-glazed alu-clad windows and doors.
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