Structural Drawings & Calculations - London & Essex
We produce structural drawings and calculations for loft conversions, extensions, steel beams, lintels, chimney breast removals, and other residential alterations. The goal is simple: give your builder a workable set of structural details and give Building Control the information needed for approval.
What is included
- Structural calculations for beams, lintels, joists, and connections
- Structural drawings showing sizes, bearings, and support details
- Buildable layouts for extensions, lofts, and internal alterations
- Building Control-ready design packs
- Clear notes for builders, fabricators, and inspectors
Typical uses
- Rear and side extensions
- Loft conversion structural packages
- Load-bearing wall removals and open-plan layouts
- New windows, new doors, and lintel designs
- Chimney removal (chimney breast) structural design packages
- Supporting drawings from findings in structural surveys
- Retrospective structural documentation
Not sure which service you need?
If your project only needs a single steel beam over an opening, steel beam calculations is the better fit. For a full design pack covering an extension or loft conversion, this page is the right starting point.
For chimney breast removal works, see chimney removal structural engineering. If you suspect cracks or movement and need a diagnosis first, start with a structural survey.
Next steps
Talk to SBS and plan your project
Send through a sketch, plan or photo and we'll come back with a clear written quote — no obligation. Most enquiries are answered the same working day. Phone, WhatsApp and email are in the footer.
Mon to Sat, 8am to 6pm. Most calls answered within 1 hour. Or message us on WhatsApp.
Where we work from
Two offices — Ilford (61 Cranbrook Road, IG1 4PG) and Tilbury (Brunel Close, RM18 8EJ) — covering Ilford, Tilbury, Thurrock, East London and Essex.
