Side Hung Windows - Triple & Double Glazed from Norrsken

★★★★★ Recognising exceptional work

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.

WINDOW SELECTOR

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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

Modern room with large triple-glazed windows offering a view of a field, featuring a cozy corner with a chair and blanket.

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.

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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.

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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.

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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.

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Modern house interior with a view of a garden through a triple-glazed glass door.

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.

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triple-glazed window with red floral curtains on a white wall

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.

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Modern bathroom with a freestanding bathtub, wooden vanity, and large triple-glazed window.

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.

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Dining room with a wooden table and orange chairs, large triple-glazed window showing greenery.

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

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Your Questions Answered

Have a question? You're not alone. We've answered some of the most common questions about our side hung 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.

What is a side hung window?

A side hung window, also known as a casement window, is hinged on a vertical edge and opens outward from the opposite side.

It is the most common residential window configuration in the UK, offering full-width ventilation, unobstructed views when closed, and straightforward operation via handle and multi-point locks.

Are side hung casement windows suitable for Passive House?

Yes. Side hung casements with triple glazing, multi-point perimeter seals, and thermally efficient frames achieve airtightness performance consistent with Passive House requirements.

In the 94mm laminated timber frame with triple glazing, Norrsken's side hung windows achieve whole-window Uw values around 0.75 W/m²K - below the Passive House Institute's 0.80 W/m²K threshold.

What are the maximum sizes available for side hung casement windows?

Maximum casement sash dimensions are governed by hardware load ratings. Side hung casements can accommodate large sash areas but are subject to hardware weight limits that restrict maximum sash size.

For very large single glazed openings, fixed frames or inward-opening hardware - which supports greater sash weight - may be more practical. Norrsken's team can confirm maximum dimensions during specification.

Are side hung windows appropriate for traditional buildings?

Yes. Side hung casement windows are the historically dominant window type in UK residential architecture and are the most appropriate specification for traditional, heritage, and conservation area projects.

Norrsken's timber casements can be specified with period-appropriate profiles, glazing bars, and finishes to meet planning conditions.

How do side hung windows handle wind pressure?

Outward-opening casements use wind pressure to compress weatherseals, which actively improves airtight performance in exposed conditions. This is one reason the outward-opening casement was the standard choice in Northern European climates with variable, wind-driven weather.

Helpful Resources

5 Key Questions to Ask Your Window Supplier

April 20, 2026
If you're specifying or buying windows for a new build, retrofit, or extension, the product itself is only part of the picture. How the window is installed, how it interfaces...

5 Key Questions to Ask Your Window Supplier

April 20, 2026
If you're specifying or buying windows for a new build, retrofit, or extension, the product itself is only part of the picture. How the window is installed, how it interfaces...
When does triple glazing make sense?

April 13, 2026
When is triple glazing the best choice – and when might it not be? A use-case guide for retrofits, self-builds, Passivhaus and extensions.

When does triple glazing make sense?

April 13, 2026
When is triple glazing the best choice – and when might it not be? A use-case guide for retrofits, self-builds, Passivhaus and extensions.
The case for all-timber windows & doors

April 6, 2026
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

April 6, 2026
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.
Are alu-clad timber windows and doors worth it?

March 31, 2026
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?

March 31, 2026
Guidance on when aluminium-clad timber composite windows make sense ⁠– and when they don't. Performance, cost, and longevity compared.

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Start your journey with Norrsken

Every project begins with a conversation.

Complete our simple form to provide a few details about your project and our team will contact you to explore your requirements and prepare your tailored quote.

We work with projects of all sizes, though we do have minimum order requirements that vary by location. We'll discuss this transparently during your consultation to ensure our service model suits your needs.

Alternatively you can email the team anytime at hello@norrsken.co.uk or call during office hours on 01202 632777.

Office opening hours:

Mon - Thurs - 9:00 a.m. to 5:00 p.m.
Fri - 9:00 a.m. to 3:00 p.m.
Sat - Closed
Sun - Closed