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Based in Thornton-Cleveleys, Lancashire, we operate UK-wide across the Nuclear, Pharmaceutical, Chemical, Energy, and Water sectors. Get in touch using the details below or fill out the form, and one of our lead engineers will get back to you promptly to discuss your exact requirements.

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Operating Across the UK

While our design office is situated on the Lancashire coast, our site survey and engineering teams routinely mobilise to industrial facilities across the entire United Kingdom.

Tell us about your complex site challenges, and our multidisciplinary team will design a highly constructible, compliant solution.

Explore Our Latest Engineering Insights

Not quite ready to discuss a project? Dive into our latest technical blogs and case studies. See behind-the-scenes of our 3D laser scanning workflows, explore our mechanical design methodology, and stay up to date with best practices in highly regulated engineering sectors.

Bringing Dead Plant Drawings Back to Life

Bringing Walking Dead Plant Drawings Back to Life

by Martin O'Hare • 20 October 2026
There’s nothing quite like that sinking feeling when a shortcut you took months (or even years) ago comes back to haunt you… Over the years, production lines get added, equipment gets moved, pipework takes a different route and the odd “temporary” fix somehow becomes permanent.

Taking the Guesswork Out of Stress Analysing in Chemical Plants

by Martin O'Hare • 2 July 2026
Stress testing is often treated as a box-ticking exercise. But in reality, it plays a key role in delivering safe, reliable chemical plant projects. One of the biggest challenges? Working from outdated or incomplete data that doesn’t reflect what’s actually on site.

Piping Isometrics: The Most Overlooked Safety Document in Process Plants

by Martin O'Hare • 1 April 2026
Piping isometrics often don’t get much attention until something goes wrong. In highly regulated industries like chemical and petrochemical processing, that documentation is critical. Without it, proving compliance, passing audits, or demonstrating that a system is safe to operate can become extremely difficult.

How Energy Price Surges Are Shaping Petrochemical Plant Engineering

by Martin O'Hare • 26 February 2026
How Energy Price Surges Are Shaping Petrochemical Plant Engineering

The Gap Between Consumer 3D Scanners and Scanners for Professional Engineering Design

by Martin O'Hare • 22 January 2026
Consumer 3D scanners have become increasingly capable and accessible over the past few years. As a result, many people now encounter 3D scan data long before they encounter a professional survey.

Reverse Engineering One Gingerbread House At A Time

by Martin O'Hare • 9 December 2025
Ever wondered how to make a gingerbread house that actually stays up under the weight of all that icing and chocolate? At O’Hare Engineering, we spend our days reverse engineering complex pipework and vessels in chemical plants across the UK. It’s all about precision, planning, and making sure everything fits.

How Accurate Is Accurate Enough With Laser Scanning Tolerances?

by Martin O'Hare • 1 December 2025
When you’re investing time and budget into a 3D laser scan or model of your complex chemical plant layout, it’s natural to ask the question: how accurate do we really need it to be? In practice, “perfect” accuracy is rarely achievable, and, just as importantly, it’s not always necessary.
How To Avoid Design Nightmares Before They Hit Site

Clashes in the Night! How To Avoid Design Nightmares Before They Hit Site

by Martin O'Hare • 24 October 2025
Clashes in the night... they’re not just a Halloween thing! We’ve all had those last-minute “how did that happen?” moments on site. This blog breaks down how we catch clashes early using laser scanning, 3D modelling, and proper coordination.

BIM & 3D Piping Design: What Mechanical Designers Really Need to Know

by Martin O'Hare • 3 October 2025
Most people think they know BIM. But when you scratch beneath the surface, especially in mechanical and piping design, it seems like a lot of people are still using the word without actually understanding what it means. I’m exploring what BIM really is, why Revit doesn’t always do the job in piping design.

Why Site Awareness Is Critical for Reliable Design

by Martin O'Hare • 23 August 2025
Designing for real-world conditions starts with understanding the site, not just the drawings. Even with the best tools, if we don’t have the right context, things can slip through the cracks. A quick site visit or an outdated scan often isn't enough to support reliable design decisions.