About PorthouseDean

Structural engineering, done the new way.

We started in 2012 with a simple frustration: getting structural calculations shouldn't be the hardest part of a home project. More than 9,000 projects later, that's still the whole idea — clear prices, dates that hold, documents that sail through Building Control, and always someone to talk to.

Get a quote Meet the team

9,000+ projects since 2012 £500,000 professional indemnity insurance

Extension — Stockport, Greater Manchester. One of 9,000+ projects.

The numbers behind the name

Professionals tell us they care who they're dealing with. Fair enough — here's who we are.

2012

Founded — over a decade of residential structural engineering.

9,000+

Projects delivered across England & Wales.

100%

Building Control approval on our calculations, or a refund.

£500k

Professional indemnity insurance behind everything we produce.

Since 2012

From one desk to a team of engineers based in the UK.

PorthouseDean was founded in 2012 to do one thing properly: structural calculations and drawings for building regulation applications on low-rise dwellings. Extensions, loft conversions, knock-throughs, new builds — the projects real families and real practices actually do.

Today a team of engineers based in the UK, dedicated project coordinators and technical support work with architects, homeowners and builders across England & Wales — delivering Building Control-ready packs on the date the customer chooses, with every project tracked live in its own hub.

See how a project runs ›

The story so far

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2012 — foundedResidential structural engineering, done properly

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9,000+ projects deliveredAcross England & Wales

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Today — the new wayInstant quotes, live hub, dates that hold

What we stand for

Four values, and we hire, engineer and answer the phone by them.

Quality

You only notice engineering when it's wrong. Clear, consistent, Building Control-ready documents — no overdesign, nothing the builder has to query.

Collaboration

Architect, builder, homeowner, Building Control — one team around your project, all looking at the same live picture.

Respect

Integrity matters here. We care about every client we work with, and we build longer-term relationships on straight answers and mutual respect.

Drive

We keep learning and keep improving — raising the bar on what a structural engineering service should feel like.

Our mission

Make the whole thing effortless.

Structural engineering is an old industry, and it hasn't always looked after the people it serves. Our mission is to change that — to make the whole process effortless, with the end user, whether that's a homeowner, an architect or a builder, at the centre of everything we do. We'll never be the cheapest, because quality is the one thing we won't trade; what we will be is the team that guides you through the minefield, with someone to talk to whenever you need it. If we've done our job well, the engineering is the part of your project you never had to worry about.

Sam Dean — Director, PorthouseDean

Sam Dean, Director