Home Extension in Erith

Structural engineering for home extensions across London. We design steel beams, foundations, walls and provide certified calculations for side return, rear, and single-storey extensions. Expert residential extension structural design.

Based in Ilford, we work with homeowners in Erith and the surrounding area. Get in touch for a free consultation about your project.

Our Home Extension Process

  • Initial consultation and site assessment
  • Detailed structural analysis and calculations
  • Comprehensive design drawings
  • Building Control-ready documentation
  • Post-works inspection and certification

Why Choose SBS?

  • 20+ years of structural engineering experience
  • Certified professionals and Building Control approved
  • Fast turnaround times and competitive pricing
  • Local to Erith — quick site visits
  • Full support from design through to completion

Understanding Erith

What Homeowners & Contractors Say

No specific testimonials yet for this combination. Contact us to discuss your project.

Local Projects in Erith

We're actively working on home extension projects in Erith. Contact us to discuss your project.

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