Building-control-ready structural calculations — beam and lintel sizing, loft conversions, wall removals, extensions and padstone design, delivered in days.
Building control will not approve structural work on a builder's say-so — they want structural calculations from an engineer. The panel's engineers produce building-control-ready calculation packs for the jobs UK homes actually generate, at fixed fees and on builder-friendly timescales.
Calculations provided
- Steel beam and lintel sizing — RSJs for wall removals, openings and knock-throughs, with padstone and bearing design.
- Loft conversion packs — floor beams, rafter and purlin checks, dormer framing and staircase trimming.
- Extension calculations — foundations, roof structure, ridge and valley beams, bi-fold and box-frame openings (full design service here).
- Chimney breast removal support — gallows brackets where permissible or beam solutions where not.
- Remedial works — calculations backing the repairs a structural report recommends.
What you receive
A calculation pack in the format building control expects: member sizing to the relevant standards, load paths, bearing and padstone details, connection notes, and sketches your builder can work from. Your engineer liaises directly with your building control officer if queries arise — that back-and-forth is included, not extra.
Fees and timescales
Because a calculation is a defined product, fees are fixed and quoted from your drawings or description — single-beam jobs at the simplest end, full loft or extension packs beyond. Standard turnaround is 3–5 working days; urgent builds can usually be accommodated. If you are still at the "can this wall even come out?" stage, start with a structural inspection — it is cheaper to ask before the skip arrives.
Frequently asked questions
Do I need structural calculations for building control?
For any structural alteration — removing or opening up a load-bearing wall, loft conversion floor beams, extension steelwork — building control will ask for calculations demonstrating the design works. Your builder cannot self-certify structural design. Without approved calculations you risk a refused completion certificate, which becomes a problem the day you sell.
How long do structural calculations take?
Standard turnaround is 3–5 working days from receiving your drawings or dimensions — single-beam calculations at the faster end, full loft or extension packs a little longer. If your builder is on site and waiting, tell us: urgent calculations can usually be prioritised. Responses to building control queries afterwards are included in the fee.
What do you need from me to provide a quote?
For most domestic jobs: your architect's drawings if you have them, or otherwise a floor plan sketch, photographs of the wall or space, and a description of what you want to do. That is enough to quote a fixed fee for the vast majority of beam, loft and extension calculations — a site visit is only added where the structure genuinely needs to be seen.