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Our roofing contractors team undertakes all roof work and balcony waterproofing for commercial and residential applications across London and the surrounding regions.

Pitched Roof

From replacing your roof completely to small repairs like tiles or slate replacement, our pitched roofing contractors team experience will be well placed to execute all roof work to enhance the overall look of your home while ensuring it remains well-protected against the elements.

Roofing contractors roof work
balcony waterproofing
Green Roofs

Flat Roofs & Balconies

Flat roofs are very cost-effective as they use fewer materials and take up less space than sloped roofs. This reduces the cost of initial construction and saves money if substantial repairs are required.

They are simple, easier to reach and maintain, and additions such as roof decks and gardens are possible.

Roof Work and Waterproofing 

There are many options of roofing membranes in the market, from DIY membranes to more robust options that come with up to 30 years' manufacturer's warranty when you choose approved roofing contractors.

 

The most common options are Liquid roofing membranes, such as Glass Reinforced Polyester (GRP), Polymethyl Methacrylate (PMMA), and Polyurethane (PU), and single-ply membranes, such as TPO, PVC, and EPDM, some of which are also suitable for balcony waterproofing. These membranes, known for their durability, flexibility, and weather resistance, play a vital role in safeguarding buildings from the elements. Each membrane type offers unique characteristics and applications that suit different requirements, making the decision-making process complex yet crucial to the success of any roofing project.​ 

Flame-free, these roofing systems have become an increasingly important solution for modern flat roofing requirements, significantly mitigating the risk of roof fires. They can be used with traditional torch-on systems to detail areas at a high risk of combustion. There is also increasing demand for their use as a standalone system, eliminating the need for a naked flame during installation. This has proven especially popular with the education, healthcare, and emergency services sectors, which, due to the sensitivities of their sites, often have a strict zero-flame policy.

By exploring the nuances of these membranes and considering essential selection tips, one can make an informed decision that aligns with long-term roofing goals.

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Balcony waterproofing and Parking Deck Waterproofing

Balconies and parking decks present a unique set of challenges. They are exposed to heavy use and harsh weather conditions and often require a solution that provides both waterproofing and aesthetic appeal. We can specify membranes with superior durability and high mechanical resistance, making it an ideal solution for these areas. These can withstand heavy foot and vehicle traffic. It can also withstand heavy objects without tearing or puncturing. This toughness helps ensure sustained protection against water damage.

The system's impressive weather resistance ensures it performs effectively in sunlight, rain, or freezing conditions. Its flexibility allows it to accommodate minor structural movements and thermal expansions without cracking, an essential factor in outdoor applications subject to temperature variations. They are available in a variety of colours. This allows for aesthetic compatibility with the existing architecture or design schemes.

 

We are approved roofing contractors with the leading manufacturers of roofing systems. We can help with your roof work, including cold roof, warm roof, green roof or inverted roof or balcony waterproofing requirements.

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© 2025 by LER Group Ltd.

LER Group Ltd is a company registered with Companies House in England and Wales under registration 12848370. Its VAT number is 358174476 and the registered offices are at 68 Ritcroft Street, Hemel Hempstead, HP3 8PF.

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