Sealing Windows & Glass Structures for Long-Term Leak Protection

Windows and glazing systems are high-risk areas for water ingress, as failed seals, poor drainage, and structural movement can allow water to penetrate curtain walls, atriums, and skylights. Over time, leaks can cause interior damage, mold growth, and even structural deterioration, leading to expensive repairs and energy inefficiencies.

At Peak Access Abseilers London, we specialize in professional waterproofing solutions for windows, glazing systems, and glass structures. Using high-performance sealants, waterproof coatings, and precision application techniques, we ensure a watertight, durable finish. For high-rise and difficult-access areas, our rope access technicians provide efficient, non-intrusive waterproofing without the need for costly scaffolding.

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Why Proper Window & Glazing Waterproofing is Critical

Prevents Water Ingress & Interior Damage – Seals gaps, cracks, and failed joints to stop leaks before they cause structural issues.
Enhances Energy Efficiency – Proper waterproofing eliminates drafts and improves insulation, reducing heating and cooling costs.
Extends the Lifespan of Glazing Systems – Protects curtain walls, skylights, and atriums from premature weathering.
Eliminates Mold & Damp Risks – Prevents moisture buildup that leads to condensation, mold, and unhealthy environments.
Meets UK Waterproofing Standards – Ensures compliance with BS 8213-4:2016 and BS EN 12208 for watertightness testing.

With our expert waterproofing applications, we safeguard glass installations against long-term exposure and environmental stress.

  • Specialist Glazing Waterproofing Experts – Trained in sealant application, moisture control, and glass panel protection.

  • Rope Access for High-Level Windows & Curtain WallsNo need for scaffolding, reducing costs and disruption.

  • Fully Insured & Guaranteed Work – Backed by £5 million public liability insurance.

  • Advanced Sealants & Waterproofing Systems – Using high-performance, UV-resistant, and flexible solutions.

  • London-Wide Coverage – Servicing residential, commercial, and industrial buildings across the city.

Rope access technicians carrying out high level roofing work on a building in London to inspect repair and maintain the roof structure

Our Window & Glazing Waterproofing Services

🏢 Curtain Wall & Window Sealant Replacement – Removing and replacing deteriorated seals to restore watertightness.

💧 Glazing System Waterproofing – Applying advanced coatings and moisture-resistant treatments.

🔍 Skylight & Rooflight Waterproofing – Sealing frame edges, glass joints, and connection points.

🏗 Atrium & Glass Canopy Protection – Ensuring seamless integration of waterproofing materials for large glass structures.

🚪 External Door & Threshold Waterproofing – Stopping water intrusion at ground-level and balcony doorways.

For commercial buildings, high-rise glazing systems, and heritage properties, we use rope access waterproofing techniques to apply specialist coatings efficiently and safely.

Rope access technicians carrying out bird proofing on a high rise building in London to prevent bird nesting

Working Hours

Monday – Friday: 07:00 – 18:00

Saturday: 09:00 – 16:00

Closed on Sunday


📍 Our Location

Hanover House

14 Hanover Square, London W1S 1HN


📞 Contact Us

020 3011 0935

Get a Quote – Safe, Fast & Cost-Effective Work at Height

Need expert rope access solutions? Whether it’s maintenance, inspections, or repairs, our IRATA-certified team delivers efficient, no-fuss service without scaffolding. Get in touch today for a tailored quote.

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Serving London and Surrounding Areas

Based in the heart of London, Peak Access proudly serves all boroughs of the city as well as the surrounding areas. Our rope access teams are mobile and ready to deploy wherever they’re needed, from central London skyscrapers to suburban campuses and outlying industrial sites. We understand the diverse architecture and challenges across Greater London — whether it’s navigating busy urban centers or protecting historic facades in older districts. Wherever your project is located, you can count on us to bring our high standards of safety, efficiency, and quality workmanship to the site. Peak Access is committed to delivering top-quality rope access solutions throughout London and beyond, helping our clients reach new heights safely and efficiently.