E-signature for contractors and builders
Updated
Estimates and change orders shouldn't wait until you are back at the office. With KamiSign you can send a PDF to the client from site, have them sign on their phone, and keep a dated record of what was approved.
Documents contractors and builders send most
- Estimates and quotes
- Change orders and variations
- Subcontractor agreements
- Work authorizations
- Completion and handover sign-offs
- Safety and site rule acknowledgements
How it works
- Save your estimate and change order forms as templates.
- Fill in the job details and send the link by SMS or WhatsApp.
- The client signs on their phone, without an account.
- Follow progress live and download the signed copy.
- Keep the certificate with the job file in case the scope is disputed later.
Why it fits
- Sign from site on a phone, with no app
- A dated record of every change order
- Templates for repeat forms
Things to check
In many places, home improvement contracts need specific wording, such as a cancellation notice, and lien waivers or licence-related forms may have statutory formats. Use the official form where one is required, and check local rules before relying on an e-signature.
Frequently asked questions
Can a client approve a change order from their phone?
Yes. They open the link, review the PDF, sign and submit.
Do subcontractors need an account?
No. Signers never need an account.
Can I keep job documents together?
Signed files and their certificates are saved in your private vault, ready to download.
Do contractors need special forms for lien waivers?
In many places, yes. Use the official or statutory form where one is required.