- Unit E8 Voyager Park, Portfield Road, Portsmouth, PO3 5FL
Welcome to Siltec your trusted partner for industry-leading waterproofing, roofing and insulation systems. We combine expert technical support with a carefully developed product range, ensuring every solution delivers performance, reliability and compliance on every project.
Working closely with contractors, architects and consultants, we provide the right solution for every application – supported by systems you can trust on site and on specification.
At Siltec, our service is free to you and covers all elements for a successful project delivery from initial concept or site survey.
We provide complete flat roof and waterproofing solutions for both new build and refurbishments.
Siltec offer everything a client needs. From initial advice and specification, access to our approved contractor network, design assistance and on site progress reports.
Siltec is a specialist supplier of high-performance flat roofing and waterproofing systems, supporting architects, specifiers, contractors and developers across the UK with reliable solutions designed for long-term performance.
Successful roofing projects depend on selecting the right system, using proven materials and receiving expert technical guidance. At Siltec, we work closely with project teams from the earliest design stages through to completion, ensuring the most suitable waterproofing systems are specified and installed correctly.
Our comprehensive product portfolio is sourced from leading specialist manufacturers and supported by recognised industry certifications and testing. These systems are designed to deliver durability, compliance and consistent performance across a wide range of roofing applications.
Siltec provides complete waterproofing solutions for both new-build and refurbishment projects, supported by specification guidance, technical advice and access to our approved contractor network to ensure systems are installed to the highest standards.
At the heart of Siltec is a commitment to integrity, transparency and service excellence. By combining trusted systems with expert support, we help our clients deliver roofing solutions that offer long-term reliability, compliance and peace of mind.
From new-build developments to refurbishment works, Siltec supplies complete flat roofing and waterproofing systems designed for durability, compliance and long-term performance.
20 & 25 Year warranty with additional insurance backing
The Siltec range of single ply PVC waterproofing membranes are at the forefront of today’s synthetic production methods.
Up to 30 Year warranty with additional insurance backing
The Siltec range of bituminous membranes offer exceptional quality of manufacture and proven reliability.
Up to 35 Year warranty with additional insurance backing
The Durabond hot melt structural waterproofing system is designed to last the lifetime of the structure to which it is applied.
20 & 25 Year warranty with additional insurance backing
Silflex liquid waterproofing systems can be installed in cold, warm and inverted roof formats.
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We deliver comprehensive flat roofing and waterproofing solutions across the UK, supporting both new build and refurbishment projects across all sectors.
From initial design, specification and compliance support through to supply and on-site guidance, Siltec works closely with architects, consultants and contractors to ensure every system performs as intended.
Our high-performance, fully warranted systems are developed to meet the demands of modern construction—providing reliability, buildability and long-term protection you can trust.
Technical Centre
At Siltec, our technical support service is provided free of charge and is designed to support projects at every stage. From initial concept discussions and site surveys through to detailed specification packages, bespoke drawings and technical calculations, our experienced team works closely with project teams to ensure the correct system is selected and specified.
We also provide on-site support, project monitoring and final sign-off assistance, helping to ensure installations meet our technical standards and deliver the long-term performance expected from a Siltec roofing system.
Siltec provides trusted flat roofing and waterproofing solutions across the UK, supported by expert technical guidance and high-performance systems. Speak with our team today to see how we can support your next project from concept through to completion.
Siltec works with roofing professionals across a wide range of projects. Here is what some of our clients say about working with us.
