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Triple Glazed Skylights

Our triple glazed rooflights are manufactured in Britain, inspected before dispatch and covered by a 10-year guarantee as standard. Three panes of glass with argon-filled cavities reduce heat loss and limit external noise, delivering a higher level of thermal and acoustic performance for any flat roof opening. At Rooflights and Skylights UK, standard and custom sizes are available to suit every opening, whether above a bedroom, a living room or a flat roof extension.

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Frameless Fixed Flat Rooflight 500×500mm (internal size)

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Frameless Fixed Flat Rooflight 1000×1500mm (internal size)

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Framed Fixed Flat Rooflight 600×1200mm (internal size)

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Framed Fixed Flat Rooflight 600×900mm (internal size)

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Frameless Fixed Flat Rooflight 600×900mm (internal size)

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Frameless Fixed Flat Rooflight 600×1200mm (internal size)

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Framed Fixed Flat Rooflight 1000×1000mm (internal size)

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Framed Fixed Flat Rooflight 1000×1500mm (internal size)

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Framed Fixed Flat Rooflight 1000×2500mm (internal size)

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Framed Fixed Flat Rooflight 600×1800mm (internal size)

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Frameless Fixed Flat Rooflight 600×1800mm (internal size)

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Framed Fixed Flat Rooflight 1000×3000mm (internal size)

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Frameless Fixed Flat Rooflight Custom Size (internal size)

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Framed Fixed Flat Rooflight Custom Size (internal size)

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Frameless Fixed Flat Rooflight 1000×2500mm (internal size)

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Our triple glazed rooflights are manufactured in Britain, inspected before dispatch and covered by a 10-year guarantee as standard. Three panes of glass with argon-filled cavities reduce heat loss and limit external noise, delivering a higher level of thermal and acoustic performance for any flat roof opening. At Rooflights and Skylights UK, standard and custom sizes are available to suit every opening, whether above a bedroom, a living room or a flat roof extension.

Durable Triple Glazed Skylights That Keep Your Home Warmer All Year

The additional glass pane works with the argon-filled cavities to reduce heat transfer through the roof, retaining warmth through winter and preventing heat build-up through summer. A more stable indoor temperature is maintained year round without placing additional demand on your heating or cooling system. Our triple glazed skylights are particularly well suited to living room and kitchen installations where year round comfort and consistent performance are the priority.

Triple Glazed Skylights UK, Built to BS6375 Weather Standards

Frame integrity, glazing specification and long-term weather resistance all determine how a triple glazed skylight performs year after year. Our triple glazed skylights are constructed with thermally broken aluminium frames and toughened safety glass, tested to BS6375 weather standards and built to hold their performance and appearance regardless of the season. Every triple glazed fixed flat rooflight in our range is engineered to the same exacting standard, from the smallest standard size through to fully bespoke dimensions.

Triple Glazed Skylights That Give You Full Control Over Year Round Comfort

Our triple glazed skylights give you full control over how your space performs across every season. The three panes and argon-filled cavities work together to reduce heat loss in winter and limit solar heat gain through summer. For openings where maximum insulation is the priority, triple glazing delivers that level of performance without compromise, making it the appropriate specification for porch skylights and any opening that requires superior thermal control.

Not sure whether triple glazing is right for your opening?

The right specification depends on your roof, room size and insulation requirements. Speak to a specialist or request a free quote today.

Triple Glazed Skylights in Standard Sizes or Manufactured to Your Exact Opening

We hold a full range of standard triple glazed skylight sizes and manufacture to exact dimensions for openings that require a precise fit. Standard stock is dispatched within 3 to 4 working days. Bespoke triple glazed skylights are delivered anywhere across the UK within 7 to 10 working days. For openings where a raised glazing structure better suits the space, our roof lanterns collection offers a strong architectural alternative.

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Specialist Guidance on Triple Glazed Rooflights at Every Stage

Our team has handled triple glazed rooflight projects across a wide range of property types and roof configurations, from flat roof extensions to conservatory roof lantern upgrades and new build installations. Whether the project is straightforward or has specific requirements, we provide clear, practical guidance throughout. From glazing selection and sizing through to dispatch, every stage of the order is managed with the same attention to detail.

Get the right triple glazed rooflight for your project

Browse our range or speak to a member of the team for direct advice matched to your opening and specification.

Award Winning Triple Glazed Skylights, Certified to British Standards

Every triple glazed skylight we manufacture carries full UKCA certification and is produced in Britain to the same exacting standard regardless of size or order value. We took home the Top Product Award in both 2024 and 2025. Each unit undergoes a thorough inspection before dispatch, arriving on site complete, accurate and ready to install, backed by a 10-year guarantee as standard.

Triple-Glazed Glass Rooflights Available in Every Frame, Colour and Finish

Anthracite Grey, Pure White and Jet Black powder-coated aluminium frames are all available as standard across our triple glazed range. The slim profile keeps the glass as the focal point and integrates cleanly within the roofline, retaining its appearance year after year regardless of the colour selected. For an uninterrupted glass finish with no visible frame, our frameless rooflights are the right choice. For a clean, defined border, our framed rooflights deliver a precise finish across the full opening.

Frequently Asked Questions

A triple glazed rooflight is constructed with three panes of glass and argon-filled cavities, delivering superior thermal performance and noise reduction for any flat roof opening. It provides a measurably higher level of insulation than a standard double glazed unit.

Yes. Triple glazed rooflights reduce heat loss, improve acoustic comfort and maintain a stable indoor temperature year round. For rooms that lose heat quickly or are exposed to significant solar gain, they are the appropriate long-term specification.

Triple glazed units achieve a lower U-value and provide better sound insulation than double glazed equivalents, making them the appropriate specification where thermal or acoustic performance is the priority. Our team can advise on which option suits your opening before any order is placed.

Standard sizes are dispatched within 3 to 4 working days. Custom triple glazed rooflights are delivered anywhere across the UK within 7 to 10 working days.

Most triple glazed rooflight installations are covered under permitted development rights and do not require a planning application, provided the installation remains within the existing roofline and meets the relevant height restrictions. Owners of listed buildings or properties within a conservation area should seek written confirmation from their local planning authority before any works commence.