- 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.
Siltec provides complete flat roofing and waterproofing systems designed for reliability, compliance and long-term performance. Supporting architects, consultants and contractors across the UK, our experienced team delivers technical expertise, specification guidance and project support from concept through to completion.
Speak with our technical team today to discuss your project requirements.
📞 0800 001 4567
At Siltec, we support projects from initial concept through to completion, providing expert guidance at every stage. Our team can assist with design input, site surveys and system selection, ensuring the most appropriate waterproofing solution is specified for your project.
Siltec offers a comprehensive range of flat roofing and waterproofing systems suitable for both new-build and refurbishment projects. Our solutions are designed to accommodate a variety of substrates, roof structures and performance requirements, delivering durable and reliable protection.
Our experienced technical team provides full specification support, including system recommendations, design guidance and project assistance. From initial consultation to on-site support, we work closely with project teams to ensure specifications are practical, compliant and built to perform.
Siltec systems are designed to meet recognised industry standards and regulatory requirements, giving specifiers confidence in the solutions selected. When installed by approved contractors and in accordance with our technical guidance, many systems are eligible for long-term warranties, providing assurance of long-term performance.
Siltec provides Continuing Professional Development (CPD) presentations to support architects and consultants with the latest guidance on flat roofing and waterproofing systems. Our sessions cover best practice design, compliance requirements and specification guidance, helping project teams make informed decisions.
We work with a trusted network of approved roofing contractors trained in the correct installation of Siltec systems. This ensures projects are completed to the highest standards and allows clients to benefit from system warranties and ongoing technical support.
Planning a roofing project? Our technical team can provide free advice, system recommendations and specification support to help ensure your project is delivered successfully.
📞 0800 001 4567
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.
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, build ability 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.
Projects Completed
Satisfied Customers
Skilled Employees
