Award winning structural engineers, going above and beyond.

At STL we are dedicated to tackling the unique, the challenging and the different. Our experienced team craft structural solutions that are both innovative and practical.

Driven by a passion for structural engineering.

Founded in 2010 by Jonathan Hayes, STL is a growing team of passionate structural engineers in Manchester with a UK-wide reach. We believe in keeping things personal and approachable and pride ourselves on working closely with our clients at every stage to provide guidance and support they can rely on.

We work across a variety of sectors, from residential and commercial projects to community and faith spaces and even tree houses! Whatever your structural needs, STL has the expertise and enthusiasm to make it happen.

Residential Developments

We bring our expertise to residential developments by creating safe, durable structural designs that meet regulatory standards while being cost-effective. We support your project, from drainage and foundation design to calculations for your unique design elements.

We help you make homes that are built to last. Whether it’s new builds, restorations or dealing with complex site conditions, we provide solutions that balance safety style and efficiency at every stage.

Commercial Developments

Our structural engineers support commercial developments with innovative, cost-effective designs prioritising safety, functionality, and compliance. We provide designs that help you enhance the functionality of your site.

Whether your plans are for offices, retail spaces, or multi-use buildings, we provide tailored solutions that meet regulatory standards and maximise efficiency and durability.