I.S.T.L. Engineering Ltd

Founded in 1995, ISTL are a full-service mechanical and electrical design-and-build contractor, tackling complex projects across Cardiff, South Wales and beyond. Our journey began with a focus on electrical services, expanding to include comprehensive mechanical solutions in 2000. As Cardiff's luxury apartment market boomed, ISTL rose to the challenge, establishing a reputation for reliability and skilled execution.

Our dedication to practical solutions and quality craftsmanship continues to be a core value. Our design and build services offer a seamless experience, taking your project from vision to reality. While we excel at core services like heating, plumbing, and lighting, ISTL offers a diverse range of expertise.

From data and media cabling to air conditioning and CCTV systems, we handle it all. This comprehensive approach allows us to provide nearly every conceivable building service, streamlining the construction process and saving you time. ISTL has delivered almost 4,000 apartments since our inception in 1995, engineering a variety of centralised and de-centralised systems across many M&E disciplines.

From 2 storey blocks to 25 storey towers and higher, we have the experience and expertise to work with any building technology from simple timber frame to the latest steel and concrete structures. We have also played a key role in delivering quality student accommodation, creating vibrant living environments that cater to students' needs, engineering nearly 1,600 student accommodation units. ISTL understands the unique requirements of Extra Care housing, having delivered hundreds of homes focused on comfort, safety and independence.