Sliding & Folding Doors in London
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Open your space to light, comfort, and style.
At Bigness Group, we design and install sliding and folding door systems that connect interiors and exteriors seamlessly.
Our bespoke glazing solutions combine architectural precision with thermal efficiency — creating living spaces that feel brighter, larger, and more connected.
Whether it’s a modern extension, a luxury apartment, or a commercial development, we bring craftsmanship and innovation to every installation.
Transforming Spaces with Style
Sliding and folding doors redefine how homes and workplaces interact with their surroundings.
We partner with leading glazing manufacturers to offer aluminium, steel, and composite systems that balance aesthetics, insulation, and security.
Every door is precision-engineered for smooth operation, weather resistance, and long-term reliability — turning architectural vision into reality.
Our Sliding & Folding Door Solutions
We offer a wide range of systems designed for performance and design flexibility:
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Aluminium Sliding Doors – Slim frames, panoramic views, and exceptional thermal performance.
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Bi-Folding Doors – Elegant folding systems that open up entire walls with effortless motion.
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Steel & Heritage Systems – Minimalist, timeless aesthetics ideal for modern or traditional properties.
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Energy-Efficient Glazing – Double or triple glazing for maximum insulation and acoustic comfort.
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Integrated Blinds & Smart Controls – Motorised shading and remote operation for convenience.
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Commercial Systems – Large-span doors for restaurants, offices, and retail environments.
Every installation is bespoke — measured, designed, and fitted precisely to your project.
Our Process
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Consultation & Survey – We assess your space, design preferences, and performance requirements.
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Design & Specification – Detailed drawings, glazing options, and hardware selections provided for approval.
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Fabrication & Installation – Doors manufactured to order and installed by qualified technicians.
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Finishing & Sealing – Every detail checked for airtightness, weatherproofing, and smooth operation.
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Quality Assurance – Final inspection, handover, and warranty documentation for complete confidence.
We combine beauty with durability — every movement feels engineered to perfection.
Why Choose Bigness Group
Bigness Group brings architectural glazing expertise and construction experience together.
We’re not just installers — we’re engineers of design and precision.
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Premium sliding and folding systems from trusted brands
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Tailored design, supply, and installation under one contract
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Compliance with Part L (Thermal Efficiency) and Part Q (Security) regulations
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Fully insured, FENSA-compliant, and backed by warranty
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Transparent quotes, timelines, and project management
We turn architectural details into signature features.
Frequently Asked Questions
Q: What’s the difference between sliding and bi-folding doors?
Sliding doors move on parallel tracks for large glass panels, while bi-folds fold concertina-style to open entire walls.
Q: Can you replace existing doors with new systems?
Yes. We handle replacements, widening of openings, and lintel reinforcements if required.
Q: Are your doors energy efficient?
Absolutely — we use thermally broken aluminium profiles and high-performance glass for excellent U-values.
Q: Do you offer custom colours and finishes?
Yes. Choose from hundreds of RAL colours, textures, and metallic finishes to match your design.
Q: Do installations come with warranty?
Yes. All doors include manufacturer and workmanship guarantees for long-term peace of mind.
Recent Glazing Projects in London
Discover how we’ve transformed London properties with bespoke aluminium sliding and folding door systems. Each project showcases our precision craftsmanship and ability to blend modern design with everyday functionality.
Sliding & Folding Door Installations Across London
We supply and install high-performance glazing systems throughout Greater London — from modern homes in Richmond to commercial spaces in Shoreditch. Our installation teams are trained to deliver precision alignment, perfect sealing, and immaculate finishing on every project. Whatever your style, we ensure performance meets perfection.
Barking and Dagenham / Barnet / Bexley / Brent / Bromley / Camden / Croydon / Ealing / Enfield / Greenwich / Hackney / Hammersmith and Fulham / Haringey / Harrow / Havering / Hillingdon / Hounslow / Islington / Kensington and Chelsea / Kingston upon Thames / Lambeth / Lewisham / Merton / Newham / Redbridge / Richmond upon Thames / Southwark / Sutton / Tower Hamlets / Waltham Forest / Wandsworth / Westminster
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