Variations: signed before the work starts

When something changes on site, raise a variation: describe it, price it, and send it for signature. Work proceeds after the client signs — that's the whole point.

• Signed variations roll automatically into the relevant progress claim
• The paper trail is built as you go — nothing to reconstruct at the end of the job
• Poolified AI can draft the variation wording from your notes; you check the numbers and send