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Structural Engineer Calculations
Accurate structural engineer calculations for homeowners, architects and contractors. Building Control-ready design work with clear assumptions, practical detailing and one dedicated engineer.
Three things you always know
Every job runs through the same process, so every customer gets the same three answers.
The price, before you commit
Tell us about the project and we’ll tell you the price and the steps that follow. No hourly rate. If the job changes, there is a free change request on every job.
The turnaround, chosen by you
Pick how fast you need it, and pay less if you can wait. You get a date to work back from.
Every step, in one place
Never wonder where it’s up to — just look. Your project hub shows what is happening now, what is next and anything we need from you, with your drawings, documents and invoice alongside. Share it directly with everyone involved in your project.
Structural Engineering Calculations For Architects & Homeowners
Ensuring safety, integrity, and durability in your low-rise residential construction project is paramount. Enter PorthouseDean, your trusted partner with a proven track record in providing design-based structural engineering services on projects of all shapes and sizes, across the country. We are here to empower your vision with comprehensive and, above all else, accurate structural engineer calculations. Your vision, our calculations.
Understanding Structural Engineering Calculations: Why They Matter
Structural engineer calculations are the theoretical foundation for a safe and robust construction project. They play a crucial role in determining the strength, stability, and durability of a building. Here’s why they’re so crucial:
- Safety: Structural calculations show that your project is designed to carry the loads and forces it will face, on the design assumptions set out in them.
- Compliance: Accurate structural engineering calculations are a legal requirement. This is done to ensure A project, once work has begun, can adhere to building codes and regulations.
- Cost-Effective: Properly designed calculations can lead to more efficient material use, ultimately saving costs, without compromising safety.
- Longevity: A well-designed structure based on precise calculations will ensure long-lasting durability.
At PorthouseDean, our focus is on providing design calculations for low-rise residential projects, ensuring you have a sound baseline for your build.
Our Architectural Partners
What we cover
Everything Building Control needs to approve your project first time.
- Building Control-ready structural calculations for domestic projects
- Clear assumptions, load paths and member sizing
- Calculations for extensions, lofts, new builds and alterations
- Practical coordination with drawings and site queries
- Design aimed at avoiding unnecessary material cost
- One dedicated engineer throughout the project
- A free change request on every job
- Clear documentation for both builder and Building Control
What every quote includes
We don't strip things out to make the headline price look cheaper. This is the full package, every time.
Full structural calculations
Beam specs, column calculations, foundation details, load assessments — everything your project needs.
Building Control documents
Submission-ready, and 100% approved by building control: if yours aren't, you get a refund. Your engineer handles any queries from BC directly.
Contractor pack
Clear drawings and instructions to build from on site. Dimensions, connections and installation notes included.
A free change request
Building Control changes, contractor modifications, design adjustments — the first change is on us, and further changes cost less than a new quote.
£500,000 PI insurance
Professional indemnity cover on everything we produce.
Ground conditions check
Site-specific ground assessment integrated into the foundation design. Helps avoid unexpected foundation costs.
Virtual site visit
Included with every project. Your engineer guides you through capturing measurements and photos via video call.
Dedicated engineer
One person who knows your project. Not a different voice every time — same engineer from quote to Building Control.
Pay by card, bank transfer, or Klarna — split into 3 interest-free payments. See the full process →
How it works
From quote to delivery, the same process every time. No surprises.
Answer a few questions or upload your drawings. We confirm scope, review the information and provide a price for the structural calculations your project needs.
One dedicated structural engineer reviews the scheme, confirms the design assumptions and becomes your single point of contact from instruction through to approval.
You receive Building Control-ready calculations with clear assumptions and practical detailing. A free change request is included and your engineer handles follow-up queries.
A delivery date you choose. 100% building control approval, or a refund. Dedicated engineer throughout. See how it works →
Need structural engineer calculations?
A clear price and a delivery date you choose. Building Control-ready calculations, assumptions stated up front and one dedicated engineer throughout.