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North England & Scotland - 0161 820 3230

Structural Engineers in West Yorkshire

Residential structural engineering that doesn't leave you guessing

Extension and renovation calculations for homes across West Yorkshire. Request your structural calculations quote – fast, reliable, trusted.

9,000+
Projects across England
100%
BC approval record
4.6 ★
Google rating

We know West Yorkshire's housing stock and what West Yorkshire Combined Authority expects

Offices in Manchester, London and Gloucester, with engineers around the country for site visits. We've worked extensively across West Yorkshire — the Industrial → modern Brick terraces, stone mills, the party wall situations that come with them.

More importantly, we know how West Yorkshire Combined Authority’s building control team operates and we write our calculations to match. That saves time on site and avoids queries coming back.

Local knowledge

Projects completed across West Yorkshire and surrounding areas
Familiar with Glacial till ground conditions and what that means for your foundations
Experience with Industrial → modern properties and the structural challenges they present
Working near Yorkshire Dales; Piece Hall and the surrounding neighbourhood
Site visits arranged locally when your project needs one

PorthouseDean provides structural engineering for extensions and knock-throughs in West Yorkshire. With 9,000+ calculations completed across England, we bring proven expertise to every project.

Houses are all we do. That specialism matters when something goes awkward.

We don't do commercial. We don't do bridges. We do extensions, loft conversions, knockthroughs, new builds — and we've done over 9,000+ of them with a 100% building control success record.

That specialism means when your project throws up something unexpected — and they always do — we've seen it before. We know what works, what building control will push back on, and what your builder actually needs on the page to build from.

9,000+
Residential projects
100%
BC approval rate
4.6 ★
Google reviews

The quote's the easy part. It's three weeks later that matters.

The difference between structural engineers doesn't show up in a quote. It shows up when your builder's on site and something doesn't add up. When building control come back with a query. When the design changes halfway through and someone needs new calcs yesterday.

Our calculations are detailed enough that your builder can work from them without ringing anyone. When BC come back with a query, we deal with it — as many as they want. If they want something changed, we change it.

Project changes? Every quote includes a free amendment because we know designs evolve. Need to speak to your engineer? We give you a direct booking link for meetings, and our tech support team handles urgent queries whenever you need them.

A builder standing around waiting for a structural answer costs real money. We're the engineers who pick up the phone.

Fixed fee. No surprises after you've committed.

The number we quote is the number you pay. No extras bolted on for BC queries, no awkward invoice three months later.

Full structural calculations
Detailed enough for your builder to work from without calling anyone. Standard delivery in 10 working days — or as little as 1.
Unlimited BC queries
Building control come back with questions — we deal with every one. If they want changes, we make them.
One free amendment
Projects change — we know that. One design amendment included in every quote as standard.
Virtual site visit
A face-to-face video call with your engineer to talk through specific design requirements. Included in your quote.
Direct engineer access
A booking link to schedule meetings with your engineer directly, plus tech support for urgent queries.
Quote within 24 hours
Often much quicker. A fixed fee so you can plan your budget or quote your own client with confidence.

Recent Projects Near West Yorkshire

Example of a single storey extension — the type of work we carry out in West Yorkshire

Single storey extension

LS21LSSep 2022
Example of a single storey extension — the type of work we carry out in West Yorkshire

Single storey extension

LS13LSOct 2025
Example of a single storey extension — the type of work we carry out in West Yorkshire

Single storey extension

LS17LSMar 2021
Example of a knock-through — the type of work we carry out in West Yorkshire

Knock-through

LS27LSJan 2023
Example of a single storey extension — the type of work we carry out in West Yorkshire

Single storey extension

LS25LSJan 2020

Send plans. Get a quote. We handle the rest.

1
Send us your plans
Drawings, sketches, whatever you've got. We'll take it from there.
2
Fixed fee quote within 24 hours
Often much quicker. A clear number so you can plan your budget or quote your own client with confidence.
3
Virtual site visit with your engineer
Put a face to the name, talk through the specifics. Included in your quote — no physical visit needed to get started.
4
Calculations in 10 working days (or as little as 1)
Signed off and ready for West Yorkshire Combined Authority. Detailed enough to build from.
5
We deal with building control
However many queries they come back with, we handle them. If they want something changed, we change it.

Send us your plans

Fixed fee quote within 24 hours. No obligation, no chasing.

What people say

★★★★★
I've used PorthouseDean engineers for many of our clients and my personal project. I find their pricing fair to reflect the quality work that has been produced. Definitely recommend.
— Clinton Johnson · Trustpilot
★★★★★
I was referred to them by the building control designers. I found them responsive and helpful. The engineering came through quickly for building control and as I needed them to get contractors quotes. Fair and reasonable price for the excellent service.
— Oasis · Trustpilot
★★★★★
The internal structural walls changed at least 3 times and the engineer assigned to me was very accommodating with the changes. I liked the fact that the work they do is peer-checked. Would not hesitate to use them again.
— Phil Neo · Trustpilot

Areas We Cover in West Yorkshire

Select your area below for local project data and a quote tailored to your location.

Frequently Asked

If you're removing a wall, converting a loft, building an extension, or doing anything that affects the structure of your house — yes. Building control will require structural calculations before they sign off the work.

A virtual site visit is included in every quote — it's a chance to put a face to the name and talk through specific design requirements with your engineer. But we don't believe a physical visit is necessary for most residential projects. Working remotely allows us to be more economical while maintaining the same quality throughout. If your project does need a physical visit, we have engineers around the country who can arrange one.

Quote within 24 hours of receiving your plans — often much quicker. Standard delivery is 10 working days, but we can turn calculations around in as little as 1 working day if you need them urgently.

Based on our 9,000+ projects across England, structural calculations typically start from £500 + VAT depending on the complexity of the project.

Fees depend on the scope and complexity of your project. We provide clear, fixed-fee quotes within 24 hours so you know exactly what you'll pay before we start. No hidden costs, no extras for building control queries.

Every quote includes one free amendment because we know projects change — that's normal. Beyond that, we'll quote any further changes clearly so there are no surprises.

The quote's not the product — the project is. A cheaper set of calculations might get you through the door, but when building control query something or your builder can't follow the drawings, that's when it costs you. We include BC queries, an amendment, and a virtual site visit because that's where projects actually succeed or fail.

Local Area Information

Understanding West Yorkshire's unique characteristics helps us deliver precise structural solutions.

Population
2.3 M
Building Era
Industrial → modern
Soil Conditions
Glacial till
Local Authority
West Yorkshire Combined Authority
Housing Stock
Urban terraces; post-war estates
Transport Links
M62; East Coast Main Line
Engineering Note: Glacial tills & sandstones

About Our West Yorkshire Structural Engineering Services

Structural Engineering Excellence in West Yorkshire

Choosing the right structural engineer means finding someone who truly understands your area. We specialize in West Yorkshire properties, working regularly with everything from Industrial → modern homes built with Brick terraces, stone mills. This local expertise ensures our designs satisfy West Yorkshire Combined Authority building regulations efficiently.

Foundation Design for West Yorkshire’s Soil Types

Successful structural projects begin with proper foundation design. West Yorkshire’s typical Glacial till presents specific engineering requirements. Glacial tills & sandstones We incorporate this geological knowledge throughout our calculations, ensuring safe, durable foundations for extensions, conversions, and renovations.

Local Expertise, Professional Service

Urban terraces; post-war estates This diversity means we’ve developed expertise across all property types – whether you’re extending a period property near Yorkshire Dales; Piece Hall or renovating a modern home with easy access to M62; East Coast Main Line.

We maintain strong working relationships with West Yorkshire Combined Authority building control, streamlining approvals for your project. Our structural calculations are accepted first time, avoiding costly delays.

Coverage Across West Yorkshire

Operating throughout West Yorkshire and surrounding areas (population: 2.3 M), our services include:

• Loft conversion and roof extension calculations
• Extension designs – all configurations
• Internal structural alterations
• Steel beam and RSJ specifications
• Foundation and underpinning calculations

Request Your Free West Yorkshire Structural Engineering Quote

Starting your project? Get in touch with PorthouseDean for structural calculation pricing in West Yorkshire. Expect our detailed, fixed-fee quotation within 24 hours.

Ready to get started?

Send us your plans for a fixed-fee quote within 24 hours. Or call us — we actually answer.