Product
Overview
The commercial operating system for construction. Capture a commercial event once, every downstream workflow stays connected.
See the whole product →Estimate & tender
TenderingContract models
Fixed, cost plus & open book
Claim a fixed sum, reimburse at actual cost, or bill fully open book. ClaimStack handles each, the right way.
See how →Solutions
Overview
Built for every side of the contract. One commercial record the whole project team can trust, head contract to supplier.
See how it fits your role →For subcontractors
Free to collaborate
Invited to a project? Submit claims and variations in a format that holds up, free forever.
See the plan →Resources
PricingOverview
Practical guides on claims, variations and contracts, plus how ClaimStack connects, who's behind it, and how we keep your commercial data safe.
Read the blog →Get started
See it on your project
A 30-minute walkthrough on your numbers, where the margin usually leaks.
Book a demo →Support
Help with ClaimStack.
For customers, and for anyone invited onto a ClaimStack project: subcontractors, suppliers, consultants and clients. Get an answer in the app, or reach a person.
01
Help Centre
Guides for every part of the product, in the app. Sign in and open Help from the menu.
Open Help →02
Chat with support
Ask in the app. The assistant answers from the Help Centre, and hands you to our team when you need a person.
Sign in to chat →03
Email
Anything else, or if you cannot sign in. Include the project and what you were doing.
support@claimstack.com.auSend a support request.
Tell us what you were doing and what happened. The project and the claim, package or invoice number help us find it fast. Never send a password.
Invited to price a tender or join a project?
Bidding is free. Open the link in your invitation email. If it no longer works, ask the company that sent it to resend it, or send us a request.
Found a security issue?
Email security@claimstack.com.au, not this form.
Not a customer yet?