Provincial Seals

Provincial Seals Limited (PSL) has been a trusted partner in the retrofit industry for 20 years, providing high-quality materials, market-leading pricing, and expert support to clients across the UK. Whether you’re undertaking a government-funded eco project or managing a private retrofit, we offer everything you need to take your project from concept to completion. We supply a wide range of materials nationwide, including cavity wall insulation, internal and external wall insulation, flat roof insulation, underfloor and loft insulation, ventilation systems, and solar PV solutions, ensuring every project has the right components for long-lasting results. Beyond materials, our accredited training centre, recognised by three leading industry bodies, delivers hands-on training for installers. Combined with our end-to-end service and ongoing support, this helps you develop new skills, expand your capabilities, and access larger projects while staying fully compliant with industry standards. At PSL, our decades of experience, nationwide supply, and commitment to quality, reliability, and customer success mean we’re dedicated to helping you bring every retrofit project to life efficiently and successfully.