Collection: Triple-Glazed Windows

Triple glazing that transforms how you live.

Modern homes demand more than adequate energy efficiency – they require windows and doors that fundamentally transform comfort, reduce environmental impact, and deliver exceptional value for decades.

Discover industry-leading performance: Whole-window U-values as low as 0.64 W/m²K.

From warmer interior surfaces that eliminate cold spots to dramatically quieter living spaces, choosing triple glazing delivers benefits you'll notice immediately.

Ready to get started? Call the team now on 01202 632777

  • Exceptional Thermal Performance

    Up to 50% better energy efficiency than double glazing – with many Norrsken windows achieving whole-window U-values below 0.8. Our best-performing systems reach an industry-leading 0.64 W/m²K.

  • Superior Comfort, Year-Round

    Warmer interior glass surfaces eliminate cold spots and drafts near windows, creating consistent comfort throughout your space regardless of external temperatures.

  • Peaceful, Quiet Interiors

    Three panes of glass with solid timber or alu-clad construction create a substantial sound barrier, transforming busy homes into tranquil sanctuaries.

  • Sustainable by Design

    Reduced environmental impact through renewable, responsibly-sourced timber frame materials combined with dramatically lower energy demands that reduce your carbon footprint for decades.

Our Triple-Glazed Windows Range

Triple-glazed windows represent the pinnacle of thermal performance, acoustic comfort, and sustainable design.

Each product reflects our commitment to exceptional craftsmanship and meticulous attention to detail. From initial consultation through to after-sales support, we ensure your satisfaction at every stage through precision engineering and dedicated service.

Whether you're building a certified passive house, renovating a heritage property, or creating a contemporary new build, our triple-glazed windows deliver the performance, aesthetics, and lasting value your project demands.

Modern patio with triple-glazed glass door and wooden slat screen, reflecting outdoor garden.

Triple-Glazed Doors

Complete your home's thermal envelope with triple-glazed doors engineered for modern living. 

From entrance doors to expansive sliding and bi-fold systems, our doors combine exceptional performance with robust security and effortless operation.

Choose pure timber elegance or alu-clad versatility. Each door is precision-engineered for the perfect harmony of beauty, performance, and lasting comfort that enhances how you live.

VIEW THE RANGE

Which windows are right for you?

Every project has unique requirements. Take our short survey to discover your perfect windows.

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

Benefits of Triple-Glazed Windows

With whole-window U-values as low as 0.64 W/m²K, Norrsken triple-glazed windows perform 40-50% better than typical double glazing – yet typically cost only 10-15% more. Decades of improved comfort and reduced energy bills - it's the obvious choice for discerning homeowners who demand the best.

But the real difference isn't in the numbers – it's in how your home feels. On cold days, the interior glass surface of our triple-glazed windows stays several degrees warmer than double glazed alternatives. This means no cold drafts, no condensation, and that wonderful feeling of cozy warmth even when winter rages outside.

"The experience of living in the house is, frankly, amazing. Our passive house maintains a temperature of 21 degrees during the winter ... it's like having pictures hanging on the walls everywhere." 

A number of our triple-glazed windows are suitable for passive house development as standard, with verified performance data and comprehensive technical documentation.

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Modern living room with a curved sofa, colourful cushions, and large triple-glazed windows.

Superior Thermal Performance

Transform how your home feels, every day of the year. 

In most homes, up to a quarter of all heat is lost through windows and doors. Our triple glazing with whole-window U-values as low as 0.64 W/m²K – and many windows achieving below 0.8 W/m²K – delivers comfort you'll notice immediately.

No drafts near windows. No cold spots in the morning. No condensation obscuring your views. The result? A home that stays beautifully comfortable while reducing energy costs by up to 50% compared to standard double glazing.

The difference is measurable in performance data and undeniable in daily living. Triple glazing doesn't just meet building regulations – it transforms how comfortable your home feels throughout the year.

Peaceful, Quiet Living 


Your home should be your sanctuary.

Triple glazing reduces noise by physically blocking sounds. Most customers report noticeably quieter homes with triple glazing installed. 

Our triple-glazed units create a superior sound barrier that transforms busy homes into peaceful sanctuaries. Enhanced further with laminated glass options, our acoustic engineering dampens external noise to create the calm, comfortable environment where life's best moments happen.

Whether you face a busy road, live near flight paths, or simply value tranquility, triple glazing delivers measurable noise reduction that enhances quality of life every single day.

Advanced Security

Protection that gives you complete peace of mind.

Every Norrsken window and door conforms to PAS 24:2016 enhanced security standards through multi-point locking systems and robust construction
engineered to resist forced entry.

Optional laminated glass upgrades provide additional protection, ensuring your home remains both beautiful and secure.

Condensation-Free Comfort

Clear views and healthy interiors, year-round.

Condensation occurs when warm, moist air comes into contact with a colder surface. Triple glazing maintains warmer interior glass surfaces that reduce condensation problems common with standard glazing. The advanced thermal barrier keeps interior glass temperatures comfortable, protecting your views and maintaining a healthy, moisture-controlled environment.

This isn't just about aesthetics – excessive condensation can damage frames, walls, and furnishings whilst encouraging mould growth that affects indoor air quality.

Triple glazing addresses condensation at its source through superior thermal performance, delivering clear views and healthier living spaces.

UV Light Protection

Preserve your interiors while maximizing daylight. 

Three panes of glass, selective coatings, and inert gas fillings work together to filter harmful UV rays while flooding your spaces with natural light. Your furnishings, artwork, and fabrics stay vibrant longer, while you enjoy the benefits of bright, naturally lit interiors.

Quality triple glazing doesn't dim your spaces – it enhances them. Properly specified glazing maximizes beneficial daylight whilst protecting against the damaging effects of UV exposure that fade fabrics and degrade materials over time.

Finding Your Perfect Solution

Matching performance to purpose. 

We believe in specifying windows and doors that match your project's unique requirements – not one-size-fits-all solutions that compromise on either performance or value.

Our team works with you to specify the ideal solution for your specific needs and vision, meeting whole-building thermal efficiency, budget, and noise concerns to select the best products for your project. 

When you choose alu-clad timber windows, you combine
authentic warmth and character of premium timber with the durability and design freedom of virtually maintenance-free aluminium protection.

Norrsken's alu-clad timber construction delivers windows and doors engineered for decades of exceptional performance and timeless beauty – without the ongoing maintenance burden of exposed timber exteriors.

Double or Triple-Glazed?

Buildings reach their full potential with windows and doors that match their thermal envelope, architectural character, and their occupants’ lifestyle needs. 

While triple glazing delivers exceptional performance in well-designed energy-efficient homes, our high-performance double glazing provides an excellent solution where different priorities take precedence. Several key considerations guide your decision:

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Wooden cabin with triple-glazed windows, a grill in front on a gravel area

Investment Considerations

Understanding the value proposition.

Our triple-glazed windows typically represent a 10-15% investment increase over comparable double glazing, yet deliver 40-50% better thermal performance – exceptional value for meaningful comfort improvement and long-term energy savings.

This modest uplift delivers substantial benefits through reduced energy costs, enhanced property value through improved EPC ratings, and the lasting satisfaction of optimal home comfort that you'll appreciate every single day.

Consider triple glazing an investment in comfort, sustainability, and long-term value rather than simply a construction cost.

Long-Term Benefits

Superior performance pays dividends over decades.

Triple glazing transforms your home's efficiency through superior insulation that reduces heating and cooling costs year after year. Beyond immediate energy savings, you'll benefit from reduced maintenance requirements, enhanced property value, and improved EPC ratings.

The decision becomes as much about long-term peace of mind as immediate comfort. Quality triple glazing delivers exceptional performance for 30-50 years or more, meaning your investment continues delivering value long after installation.

Structural Considerations

Engineering windows for optimal performance.

The additional glass pane in triple glazing creates heavier units that require thoughtful structural planning, particularly for larger windows and doors. Several factors warrant consideration:

Window Size: Weight increases proportionally with unit dimensions, so larger triple-glazed windows and doors require additional structural support and careful installation planning.

Building Structure: Ensure your property's structure can accommodate the additional weight of triple glazing. Most UK properties built in the last 50 years accommodate triple glazing without modification, whilst older properties may require assessment.

Installation: Professional installation ensures proper weight distribution and optimal performance. Norrsken provides comprehensive supply & installation service for complete peace of mind.

Opening Mechanisms: Choose appropriate hardware and hinges engineered to handle heavier triple-glazed units whilst maintaining effortless operation over decades of use.


Whilst triple glazing offers exceptional benefits, weight represents a key consideration during specification. Professional assessment ensures successful implementation tailored to your specific situation.

Design Excellence

Choose the aesthetic that brings your vision to life. 

Both double and triple glazing are available in pure timber or alu-clad timber configurations, each offering distinct character.

Pure timber with painted finishes, clear lacquer, or natural stains showcases the authentic warmth and organic beauty of premium European timber. Alu-clad timber provides sleek, contemporary lines with virtually maintenance-free performance and enhanced weather protection.

Your choice shapes not only how your home looks but how it feels and functions for decades to come. Both options deliver exceptional thermal performance – the choice becomes one of aesthetic preference and maintenance considerations.

Create Something Distinct

Every Norrsken order is unique. Beyond custom dimensions and precision manufacturing, we provide the design flexibility to perfectly express your vision.

From custom shapes and specialized hardware to powder-coated trims and distinct hardware - find the finishes you need, whatever your project specification.

OPTIONS

Colours & Finishes

Complete design freedom to perfectly match your architectural vision.

Choose from solid colours or natural finishes with dual-colour options available on virtually every product – select one colour externally and another internally using any RAL specification.

Handles & Hardware

Our curated hardware selection combines exceptional functionality with aesthetic flexibility.

While some components are product-specific for optimal performance, we offer extensive customization across styles, colors, and finishes.

Glass Options

Advanced glazing solutions engineered for optimal comfort and performance.

Our comprehensive glass selection provides complete flexibility including double and triple glazing, solar control, and obscure options. Glass delivers the highest insulation performance in any window - with proper specification, you can maximize beneficial solar gain while preventing overheating.

Modern building with triple-glazed window, a balcony overlooking a cloudy sky and water.

Marine Finish

Marine-grade finishing for projects within 1,500 meters of the sea, ensuring exceptional durability in challenging coastal environments.
Close-up of a building exterior with wooden slat wall and triple-glazed window.

Sills & Trims

Bespoke sills and precision trims for unique architectural features. Specialized solutions including steel beam coverings and complex junction details.

Your Questions Answered

Have a question? You're not alone. We've answered some of the most common questions about below, drawing from years of expertise helping homeowners and professionals achieve their vision.

Can't find what you're looking for? Email the team.

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Why should I choose triple glazing? 

The thermal performance of a triple-glazed window is typically 40-50% better than a double-glazed version – reducing carbon emissions and heating bills – but costs on average only 10-15% more.


The interior pane maintains temperatures 2.5-3 degrees warmer across its entire surface compared to double-glazed alternatives, creating substantially more comfortable interior environments. Many Norrsken triple-glazed windows achieve whole-window U-values of 0.8 W/m²K or better, with our best-performing systems reaching 0.64 W/m²K.

Are triple-glazed windows expensive?

Bespoke triple-glazed windows cost more than double-glazed or uPVC windows.

Prices depend on the model selected, size and shape, and requirements for additional services such as installation. The uplift in cost from our double to triple-glazed range is typically 10-15% which, given their 40-50% increase in thermal performance, represents exceptional value for decades of improved comfort and reduced energy costs.

Are triple-glazed windows soundproof?

Triple glazing reduces noise by physically blocking sounds. Most customers report noticeably quieter homes with triple glazing installed.

In our laminated glass units, a thin layer of polyvinyl butyral resin (PVB) bonds glass sheets together. Originally developed for safety and security, laminated glass also provides excellent acoustic performance by dampening sound waves more effectively than standard glazing configurations.

Are triple-glazed windows good for the environment? 

Norrsken customers achieve high energy efficiency in the home without compromising on style or quality.

Using our innovative triple-glazed windows and doors as part of your new build or refurbishment project can contribute to a significant reduction in your home's CO2 emissions and a useful reduction in your heating bills.

Buildings account for approximately 39% of global carbon emissions - so building to an energy-efficient specification, monitoring and limiting energy usage and installing triple-glazed windows with low U-values will all contribute to reducing carbon emissions from the built environment.

How are triple-glazed windows sustainable?


The thermal performance of our triple-glazed windows typically exceeds double-glazed equivalents by 40-50%.


Using our windows contributes to significant reductions in your home's CO2 emissions and heating costs. We exclusively use FSC and PEFC certified timber from responsibly managed forests and partner with manufacturers awarded ISO 14001 environmental qualification.

Sustainability extends beyond materials to performance – windows that dramatically reduce energy consumption for decades represent genuine environmental stewardship.

How long do triple-glazed windows last?


Triple-glazed windows have no fixed lifespan. With appropriate care, they can last 20 to 50 years or more – particularly when clad externally in aluminium which provides exceptional weather protection.

The glass in triple-glazed windows may require replacement sooner as gas filling can gradually escape over time, potentially compromising thermal performance. However, quality manufacturing and sealing systems substantially extend this timeframe, with many windows maintaining excellent performance for decades.

Do triple-glazed windows meet UK building regulations?

Triple-glazed windows may help you to meet UK Building Regulation requirements with greater ease.

Part F, Part O and Part L require windows and doors to meet certain requirements to ensure UK homes are well-ventilated, energy-efficient and don't overheat.

With Norrsken triple glazing achieving whole-window U-values as low as 0.64 W/m²K – substantially exceeding current 1.2 W/m²K maximum requirements and meeting anticipated future standards – you can navigate new regulations with confidence whilst benefiting from our knowledgeable team's regulatory expertise.

How are triple-glazed windows and doors installed?

Most Norrsken customers opt for a supply & installation contract to ensure that each installation is managed with great efficiency and our clients obtain the most energy-efficient installation to complement their windows and doors.


Professional installation ensures optimal performance, proper sealing, correct structural integration, and comprehensive warranty coverage. Our experienced installation teams understand the nuances of high-performance window installation, ensuring your investment delivers its full potential for decades.

Maintenance requirements are very similar for triple and double-glazed windows and doors, and opting for alu-clad timber means near-zero maintenance. 

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