Structural Engineer Calculations
for homeowners
(without the faff)

Insured up to £1.5m 

Rapid turnarounds

Money back guaranteed*

Dedicated customer service

Credit / debit cards accepted

ISO 9001 quality certified

IStructE affiliated

*Terms and conditions apply.

“Wonderful efficient and professional service. Great communication and drawings delivered within timescale. Would highly recommend and will use again.”

Maggie, Homeowner

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Projects Since 2012

Calcs-Online: The Scourge of Local Engineers Nationwide

Hear more from our CEO, Sam Dean, about Calcs-Online's mission.

We have a 100% success rate in obtaining building regs approval for our Structural Engineer Calculations

How it works...


Upload your architectural drawings using the quote form below


We'll email you a quote usually within 1 working day


Accept the quote terms and conditions using the link that we send


We produce your Structural Engineer Calculations

Structural Engineer Calculations Quote Form

Structural Engineer Calculations
Typical Prices


£ 345
  • Standard Service
  • Priority Service +50%

Single-storey e

£ 495
  • Standard Service
  • Priority Service +50%

Double-storey Extension

£ 495
  • Standard Service
  • Priority Service +50%

Loft Conversion

£ 495
  • Standard Service
  • Priority Service +50%