Structural Calculations for Home Renovations
Reliable Structural Engineers | Expert Structural Calculations
Stress Free structural calculations for home extensions, conversions and new builds with guaranteed building control approval.
7 days
approval rate
9000+ homeowners
Expert Structural Engineering Services
Structural Engineering Work Designed to Suit You
Load Bearing Wall Removal
Safe, approved calculations for internal wall removal with guaranteed building control approval on our calculations.
Learn more about Load Bearing Wall RemovalRSJ Beam Calculations
Precise structural calculations for steel beams to ensure safe and compliant support solutions.
Learn more about RSJ Beam CalculationsHome Extension Calculations
Complete structural plans and calculations for extensions with building control support.
Learn more about Home Extension CalculationsLoft Conversion Support
Structural solutions for your loft conversion with expert engineer guidance.
Learn more about Loft Conversion SupportBuilding Control Submissions
100% approval rate on all submissions with complete documentation support.
Learn more about Building Control SubmissionsNew Build Projects
Specialist structural calculations and designs for residential new build homes.
Learn more about New Build ProjectsFeeling Out of Your Depth? You're Not Alone.
Planning a loft, extension, or renovation? You've probably hit the point where things start to feel confusing.
Most homeowners don't speak 'engineer.' That's okay—you're not meant to. This is likely a once-in-a-lifetime project, and we're here to guide you every step of the way.
We explain what's needed (and what's not).
We make sure your quote includes everything upfront.
We're available before, during, and after delivery.
You don't have to know how to read technical drawings. You just need someone you trust to look after them for you.
What's Included in Your Quote?
Every quote includes everything you actually need—no hidden extras, no "we'll sort that later."
Full Structural Calculations
Beams, foundations, walls—fully engineered.
Building Control Support
Reports designed to tick every box and keep things moving.
Free Revision
One change covered—whether it's a tweak from Building Control or your builder.
£500,000 Professional Insurance
So you know you're protected, always.
Virtual Site Visit (VSV) or Optional In-Person Review
For extra reassurance when something needs a second look.
Contractor Pack
Clear diagrams and installation notes—because your builder shouldn't have to guess.
Here's How It Works
We've simplified the process so you always know what happens next.
Request your quote
Share your plans with us through our simple online form, and we'll provide a transparent, no-obligation quote.
- No technical knowledge required
- Quick response (usually within 24 hours)
- Clear breakdown of what's included
Review and purchase online
Receive your detailed quote by email, review everything that's included, and proceed with your project when you're ready.
- Secure online payment
- No pressure or sales calls
- Quote valid for 30 days
We get to work
Your dedicated engineer will contact you directly to introduce themselves and discuss any specific concerns or requirements.
- Named engineer assigned to your project
- Direct contact details provided
- Progress updates throughout
Receive your calculations
Get your complete calculation pack, ready for Building Control submission, along with easy-to-understand guidance on next steps.
- Building Control ready documentation
- Contractor-friendly diagrams and notes
- Digital and printable formats
Ongoing support
Your relationship with us doesn't end at delivery. We're here for site questions, Building Control queries, or if your builder needs clarification.
- One free revision included
- Building Control support
- Engineer available for contractor questions
"This is the first time that I have used PorthouseDean and I have been extremely happy with the service... I would not hesitate to use them on future projects and would highly recommend them."
Built to Stand. Backed by Experts.
Real engineers, not a faceless support team
You'll work directly with a structural engineer who understands your project.
No chasing for updates—you'll hear from us first
We maintain proactive communication throughout your project.
Support even after delivery
Our service doesn't end when we deliver your calculations. We're available for questions from you, your builder, or Building Control.
You're not just buying calculations. You're buying confidence that things are done right.
What Our Homeowners Say
Join thousands of satisfied homeowners who completed their projects with confidence.
Kyle Holland
Loft Conversion, London
"Great, answered questions, produced exactly what was required for the project, video call for any questions was great also"
Mark Vernon
Kitchen Extension, Manchester
"Excellent service from Akhil Mathew at Porthouse Dean… Really very pleased…"
Elliot Warren
Garage Conversion, Bristol
"…PorthouseDean were brilliant and helped us so much…"
Adam Bartels
Wall Removal, Edinburgh
"Great service and advice from Daniel. He was very helpful and communication was excellent!"
Let's Take the Stress Off Your Shoulders
We've helped over 9,000 UK homeowners sail through Building Control with clarity and confidence.
Now it's your turn.
