Quote Extensions & Alterations

Are you extending or altering your house?
Get an online quote for structural calculations now.

*Fill Out Online Quote Form

*Use this form to request a quote for structural calculations and drawings required by Building Control Authorities (and your builder) for a small house extension and/or alterations project. The quote should be ready within 8 hours during our standard working hours Monday – Friday 9:00 to 17:00, excluding bank holidays. For larger projects, please attach the architectural drawings and we should have the quote ready within 1-2 working days.

We are Chartered under the Institution of Civil Engineers, insured and fully qualified team of structural engineers.

What is the average cost of structural calculations?

In general, the cost for a structural engineer’s time is around £90 per hour or £500 per day. For simple residential extensions and alteration drawings, expect to pay around £400. For complex residential projects, you could pay £2000 or more. It simply depends on how large the property is, what you’re trying to do with your extensions or alterations, the materials you’re working with, your special requirements and any changes you need.

How do we quote for extensions and alterations in structural drawings?

First, we take some basic information from you including the address of the property and contact details. Next, we ask you if you have architectural plans already and how many walls you’ll be removing. If you think you’ll need a site visit, let us know. Also, if you need these drawings quickly, tell us that too.

Lastly, we provide you with the option to attach any photos or plans that you have, which will allow us to provide a more accurate quote. Simple quotes are prepared within 4 hours during working hours and more complex projects will take up to 2 days to prepare.