Double-Glazed Doors

Proven performance that delivers the perfect balance of energy-efficiency, value, and aesthetic excellence for discerning homeowners.

Where proven performance meets exceptional value. With multi-point locking systems and superior weather sealing, every door delivers lasting comfort and peace of mind while offering complete design flexibility and exceptional quality.

Explore our full doors range

Our Door Selector lets you explore every door in our range. Filter by glazing type, frame material, opening options, and Passive House suitability to find exactly what your project needs.

DOOR SELECTOR
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Opening Types

Our main door types are: Front doors, French doors, Sliding doors, and Bi-folding doors.

Experience the difference that thoughtful design and uncompromising quality can make - choose Norrsken entrance doors and help your home reach its full potential.

SLIDING

BI-FOLD

FRONT

FRENCH

SLIDING

Large glazed panels glide effortlessly on precision tracks, creating seamless indoor-outdoor connections without requiring external clearance space.

Perfect for patios, gardens, and terraces where space is at a premium, our sliding doors operate at the touch of a finger. Multi-point locking and advanced weathersealing ensure security and thermal performance while your interiors are flooded with natural light.

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BI-FOLD

Multiple panels fold concertina-style to create expansive openings, transforming entire walls into open-air connections with your outdoor spaces.

When you want to completely open up a room to the outdoors, bi-fold doors deliver unmatched flexibility. Available as inward or outward opening systems, panels fold neatly to one or both sides, creating openings limited only by structural considerations.

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FRONT

Make a lasting first impression with entrance doors that combine security, thermal performance, and stunning design to welcome guests in style.

Available as solid panels or part-glazed to flood entrance halls with natural light, our entrance doors set the tone for your entire home. Advanced locking systems, weather sealing, and thermal breaks ensure performance matches the impressive aesthetics.

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FRENCH

Classic French doors bring timeless elegance with twin opening panels, creating graceful transitions to gardens, patios, and outdoor living spaces.

The epitome of classic style, French doors feature two panels that open outward or inward to create elegant outdoor access. As fully-glazed entrance doors, they're also available as single doors for smaller openings, providing flexible access and natural light.

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Our Window Range

Transform your home with bespoke, energy-efficient windows that combine stunning aesthetics with exceptional thermal performance.

From sleek modern designs to traditional styles, our triple-glazed timber and alu-clad windows deliver passive house performance while enhancing your home's character. Explore customisable options that perfectly match your vision and energy-efficiency needs.

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Which doors are right for you?

Take our short survey to discover the perfect doors 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.

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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 Double Glazed Doors 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 U-value do double glazed doors achieve?

Double-glazed external doors with Low-E glass, argon fill, and warm-edge spacers typically achieve whole-door Ud values of approximately 1.0–1.4 W/m²K depending on the proportion of glazed area and frame specification. Norrsken's double-glazed timber and alu-clad doors achieve Ud values around 1.3 W/m²K - sufficient for current Building Regulations but below the threshold needed for Passive House certification.

Are double glazed doors suitable for a home extension?

Double-glazed doors are appropriate for extensions where the overall SAP or energy model is not tightly constrained, and where the budget does not extend to triple glazing. However, for extensions designed to improve overall thermal performance, or where the adjacent rooms are already well-insulated, triple glazing will deliver noticeably better comfort, reduced heat loss, and lower condensation risk at the glazed threshold.

Do double glazed doors comply with Building Regulations?

Yes. Double-glazed external doors meeting a whole-door Ud value of 1.4 W/m²K or below satisfy current Building Regulations Part L requirements for replacement doors in England. For new builds, door U-values contribute to the dwelling energy model alongside walls, roof, and floor: improved door performance gives additional flexibility elsewhere in the specification.

Are double glazed bi-fold or sliding doors available?

Yes. Norrsken's double-glazed range includes sliding and bi-fold configurations in alu-clad timber and all-timber frames. Double glazing is a practical specification for renovation projects, outbuildings, or situations where planning conditions or structural constraints limit the frame depth required for triple glazing.

What are the main reasons to choose triple glazed doors over double?

The primary advantages of triple glazing over double in external doors are lower whole-door U-values (typically 0.72–0.85 W/m²K vs 1.0–1.4 W/m²K), improved airtightness performance, higher internal glass surface temperatures, reducing condensation at threshold level, and better acoustic performance. For new builds and low-energy projects, the whole-life comfort and energy benefit of triple glazing outweighs the additional upfront cost in most cases.

Can I specify double glazed doors with aluminium cladding?

Yes. Alu-clad double-glazed doors are available across Norrsken's range, providing the warmth of a timber interior with a low-maintenance powder-coated aluminium exterior in any RAL colour. This combination offers a competitive performance and aesthetic specification for renovation and new-build projects where the budget or specification does not extend to triple glazing.

Helpful Resources

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