Structural Engineering. Done Properly

Built on Experience

Delivered with Precision

Delivered with
Precision

Delivered with Precision

We deliver structural engineering solutions that are safe, practical and built around your project — from initial concept through to construction support

Our Services

House Extensions

Steel beam installation for a residential roof alteration by a structural engineer near Cardiff

Beam Installations

Timber frame roof structure for residential structural design and new build construction outside Cardiff

Timber Frames

Glazed commercial building entrance representing commercial and developer structural engineering support

Building Projects

Industrial Plant

House Extensions

Beam Installs

Timber Frames

Building Projects

Industrial Plant

House Extensions

Beam Installs

Timber Frames

Building Projects

Industrial Plant

Who We Support

Structural Engineering Support for your Project Team

Use these for the hero strip: House Extensions Residential house extension under construction with steel frame, blockwork and temporary supports. Beam Installations Steel beam installed to support structural alterations to an existing residential building. Timber Frames Timber roof and wall framing under construction for a residential building project. Industrial Plant Steel-framed industrial plant structure with pipework and access platforms. Commercial Buildings Glazed commercial building entrance representing commercial and developer structural engineering support. i meant these 3 Thought for 7s Yes — for those three images: Architects & Designers

Architects & Designers

Structural support for architects and designers developing extensions, conversions, alterations and new-build projects — helping turn design intent into clear, buildable structural information

Residential extension under construction with exposed structure, site equipment and ongoing building works in Penarth

Builders & Contractors

Practical structural design for builders, renovation contractors and extension specialists — clear details, buildable solutions and sensible support when site issues or existing building constraints arise

Property Developers

Structural advice for developers and property clients on refurbishments, conversions, extensions and new developments — helping assess feasibility, reduce structural risk and keep projects buildable

Homeowners and self-builders are also supported with practical structural advice and design for extensions, alterations, wall removals, loft and garage conversions and existing building issues

Homeowners & Self-Builders

Practical structural advice and design support for extensions, alterations, wall removals, loft and garage conversions and existing building issues.

Discuss Your Project

About Us

Structures Built on Simple Principles

Who We Are

Structural Productions Ltd is the practice of
Jason Massey | IEng IMIStructE, delivering practical structural solutions across residential, commercial and industrial projects throughout the UK and overseas

Structural Productions Ltd is the practice of Jason Massey | IEng IMIStructE, delivering practical structural solutions across residential, commercial and industrial projects throughout the UK and overseas

Our Approach

We take a hands-on, practical approach to every project — from initial concept through to construction support. Getting it right matters more than the schedule or price

We take a hands-on, practical approach from concept through to construction — understanding the brief, coordinating with the wider team and focusing on clear, buildable solutions. Getting it right matters

Our Standard

At Structural Productions good engineering practice is non-negotiable. Each and every
project is delivered with the same attention to detail, whether it's a house extension or a major industrial facility

At Structural Productions good engineering practice is non-negotiable. Each and every project is delivered with the same attention to detail, whether it's a house extension or a major industrial facility

Residential extension steelwork, roof structure and loft assessment by a South Wales structural engineer

Every project is different. The standard never changes. Supported by trusted associates, Structural Productions has the experience and capability to deliver practical solutions across projects of varying scale and complexity

See How We Work

Why Structural Productions

Good structural engineering isn't just about calculations

It's about understanding your project, your priorities and delivering practical solutions that work in the real world

Good structural engineering goes beyond calculations and drawings. It requires an understanding of how projects are designed, coordinated and
built. From extensions and structural alterations through to commercial and industrial building work, we consider the wider project — not just the individual structural elements

Good structural engineering goes beyond calculations and drawings. It requires an understanding of how projects are designed, coordinated and built. From extensions and structural alterations through to commercial and industrial building work, we consider the wider project — not just the individual structural elements

By working closely with homeowners, architects, designers, builders and developers, we develop structural solutions that are clear, coordinated and practical to build, while considering the priorities and constraints of each project