South East & East England - 0208 183 4321

South West, Wales & Midlands - 01452 346 156

North England & Scotland - 0161 820 3230

Structural Engineers in South Somerset

Residential structural engineering that doesn't leave you guessing

Accurate wall removal calcs for South Somerset projects. Get a free quote from PorthouseDean for your structural calculations now.

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

We know South Somerset's housing stock and what South Somerset District Council expects

Offices in Manchester, London and Gloucester, with engineers around the country for site visits. We've worked extensively across Somerset and know South Somerset well — the Medieval → modern Brick semis, stone terraces, the party wall situations that come with them.

More importantly, we know how South Somerset District Council’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 South Somerset and surrounding areas
Familiar with Lias clay & limestone ground conditions and what that means for your foundations
Experience with Medieval → modern properties and the structural challenges they present
Working near Yeovilton Fleet Air Arm Museum; Montacute House and the surrounding neighbourhood
Site visits arranged locally when your project needs one

PorthouseDean provides structural engineering for extensions, knock-throughs, loft conversions, and two-storey extensions in South Somerset. 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 South Somerset

Example of a unspecified — the type of work we carry out in South Somerset

Unspecified

BA13BAOct 2024
Example of a knock-through — the type of work we carry out in South Somerset

Knock-through

BA17ABAOct 2019
Example of a single storey extension — the type of work we carry out in South Somerset

Single storey extension

BA14BANov 2022
Example of a single storey extension — the type of work we carry out in South Somerset

Single storey extension

BA14BAMay 2024
Example of a single storey extension — the type of work we carry out in South Somerset

Single storey extension

BA2BAMay 2022

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 South Somerset District Council. 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

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 South Somerset's unique characteristics helps us deliver precise structural solutions.

Population
184 k
Building Era
Medieval → modern
Soil Conditions
Lias clay & limestone
Local Authority
South Somerset District Council
Housing Stock
Town semis; country estates
Transport Links
West Coastway Line; A303
Engineering Note: Lias limestone & clay

About Our South Somerset Structural Engineering Services

Professional Structural Calculations for Somerset Properties

Your project deserves engineers who know Somerset inside and out. We work extensively with the area’s building heritage – Medieval → modern constructions using Brick semis, stone terraces. Our familiarity with South Somerset District Council processes means faster approvals and fewer complications for your project.

Structural Calculations Tailored to Somerset Properties

Every area has its challenges. In Somerset, we regularly work with Lias clay & limestone, which requires specific foundation design approaches. Lias limestone & clay Our structural engineers account for these local conditions in every calculation, ensuring your extension, loft conversion, or structural alteration is built on solid foundations.

Experience Across Somerset’s Property Types

From Town semis; country estates, we’ve handled projects throughout Somerset. Whether your property sits near Yeovilton Fleet Air Arm Museum; Montacute House or benefits from proximity to West Coastway Line; A303, we understand the local context.

Our established relationship with South Somerset District Council building control helps expedite your project. We consistently deliver calculations that meet their standards, minimising delays and resubmissions.

Serving Somerset and Surrounding Areas

From our base serving Somerset (population: 184 k), we provide structural engineering services for all types of residential projects:

• Loft conversions and dormer extensions
• Single and double-storey rear extensions
• Side return and wrap-around extensions
• Internal alterations and load-bearing wall removals
• Foundation design and underpinning calculations

Structural Calculations Quote for Your Somerset Project

Ready to move forward? Contact PorthouseDean for structural engineering services in Somerset. We provide clear, competitive quotes within one business day.

Ready to get started?

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