Home improvement calculations

Get a quote for structural calculations

Tell us what is changing in your home and we email you a price. Nothing is paid until you have seen it and chosen your date.

Four steps from here

  1. Tell us about the project

    Say what is changing, whether that is an extension, a loft or a wall coming out.

  2. Your price, by email

    The quote comes to your inbox. Want an engineer to look first? Get in touch.

  3. Choose your date

    Open the quote and pick a day on the calendar. The price follows the date you pick.

  4. Everything in one place

    Your quote, your date and your calculations stay together online, a sign-in away.

Your project

Tell us about the work

After you send it

What happens next

  • Your price comes to the email address you give, with a link to open your quote. If it is not in your inbox, look in spam.
  • If the engineer sees something your description missed, we say so before the work begins.
  • Nothing is charged until you have chosen your date and paid for your calculations.

Questions about your quote

Will an engineer come to the property?

No. Calcs-Online is a remote service. The engineer works from your drawings, photos and measurements, and asks for anything missing before the work starts.

How is the price worked out?

From the work you describe and the date you choose. Each day on the calendar shows its own price.

What if building control does not accept the calculations?

Building control has accepted every set of calculations we have issued. If yours were refused, you would get your money back.

What if my project does not match the form?

Send us the drawings or a description of the job. A Calcs-Online engineer works out which calculations it needs and prices them for you.