We design RSJ beams, loft conversions, home extensions and structural alterations for houses in and around Liverpool. Every pack comes with clear drawings and Building Control-ready calculations.
Liverpool • Residential structural engineer
Structural engineer Liverpool for extensions, lofts and wall removals
We design the RSJ beams, loft floors and extension structures that keep Liverpool projects moving, from city semis to suburban bungalows.
Most of our Liverpool work comes from word of mouth between builders, architects and past clients who want clear structural calculations without fuss.
5.0 on Google with reviews from Liverpool, Wirral, Sefton and the wider county.
- Typical Liverpool houses in mind – from terraced homes in Wavertree and Anfield to post-war semis in Childwall and Crosby.
- One structural pack covering beams, joists, padstones and bearing walls so your builder is not guessing on site.
- Plain-English explanations so you, your architect and your builder all know what is being supported and why.
We work with homeowners, small developers, architects and builders across Liverpool, Wirral, Sefton and wider Merseyside.
Typical structural engineer fees in Liverpool
Guide prices for the jobs we see most often. Send your drawings for a firm fixed quote.
Load bearing wall removal design from £245.
Single storey rear extension beams from £345.
Loft conversion structural design from £395.
Prices are guides for typical houses. Extra beams or complex layouts are quoted case by case.
Structural engineer Liverpool services we provide
These are the main services homeowners and builders ask for when they search for a structural engineer near me in Liverpool.
Steel and RSJ design
Steel beam calculations for wall removals, openings and new floor layouts.
Loft conversion structural design
Floor beams, ridge beams and trimming steels for your loft conversion layout.
House extension beams
Beams and columns for rear, side and wrap-around house extensions across Liverpool.
Load bearing wall removal
Check if your wall is load bearing and provide RSJ sizes and padstones for safe removal.
Timber and roof design
Timber floor joists, flat roofs and pitched roofs designed to current British Standards.
Structural reports
Structural surveys and reports for cracks, movement, altered beams and support queries.
How our Liverpool structural engineer service works
The same simple process whether you are opening up the ground floor, adding a loft room or building a rear extension.
1.Send plans and photos
- You email architect drawings, estate agent plans or sketches with rough sizes and the property address.
- We confirm what needs designing and which structural elements are involved.
2.Fixed fee and turnaround
- We reply with a clear fixed fee for the calculations and drawings.
- Most Liverpool domestic jobs complete within 24–72 hours once we have all the information.
3.Calculations and drawings
- We design the beams, joists, walls and foundations and issue a PDF pack you can pass to Building Control and your builder.
- Where needed we mark up your architect plans so everyone is looking at the same layout.
4.Support through Building Control
- If the Liverpool Building Control officer or a private inspector has questions we respond as part of the fee.
- Minor tweaks that come from those queries are normally covered in the original quote.
What Liverpool clients rely on us for
A few quick notes to explain how we normally work on structural jobs in and around Liverpool.
Clear fixed fees
We agree the scope and fixed fee before we start, so you know what is included in your Liverpool structural design.
Fast 24–72 hour turnaround
Most Liverpool domestic jobs complete within 24–72 hours once we have your drawings, photos and key dimensions.
Building Control support
If Liverpool Building Control has questions on our design, we respond as part of the original fee, not as a surprise extra.
What Liverpool clients say about SECalcs
A small sample of the feedback we receive from homeowners and builders who use us as their structural engineer in Liverpool.
“Fast, clear and very patient answering my questions. Our wall removal and RSJ design went straight through Building Control with no issues.”
Sarah J – Wavertree
“SECalcs turned around our loft structural design in a couple of days and explained everything in plain English for the builder.”
Mark R – Childwall
“Clear fixed fee, fast responses and they dealt with Building Control queries as part of the service. Would happily use them again.”
Laura P – Crosby
Typical areas we cover around Liverpool
We often work on projects across Liverpool and nearby towns. Many jobs are designed from drawings and photos; where a visit is needed we explain why and include it in the quote.
Structural engineer Liverpool – common questions
Short answers to the questions we hear most often from Liverpool homeowners and builders.
Do you need to visit my house in Liverpool?
Often no. Clear drawings, photos and basic measurements are enough for many RSJ designs, extensions and loft conversions. If a visit is needed because of poor information or unusual details we explain that first and include it in the quote.
How much does a structural engineer cost in Liverpool?
Simple wall removals with one RSJ and clear photos tend to sit in the low hundreds. Full extension and loft projects cost more because there are more beams, checks and drawings. Send your plans and we will reply with a fixed fee before you commit.
Will Building Control accept your calculations?
Yes. We design to the Eurocodes with the UK National Annexes and present the work in a format Building Control officers see every day. If they raise a question on a Liverpool job we answer it and adjust the pack where needed as part of the service.
If you are planning a home extension, loft conversion or wall removal in Liverpool and need clear structural calculations, send us a few details and we will reply with fixed fees and timescales.
Request a structural engineer quote for Liverpool
Use this form to outline your Liverpool project. Your enquiry goes to an engineer, not a call centre.
Tell us about your Liverpool project
Share a few details so we can confirm what needs designing and send a fixed fee for the calculations and drawings.
You will usually hear back from a structural engineer within one working day.

- Head Office: Corwell Lane, Uxbridge, England, UB8 3DE.
- 07359 267907
- info@structuralengineercalcs.com
- Company No: 12653163
