Pre-fill via URL Parameters

You can pre-fill form fields by adding query parameters to the page URL. Each parameter name corresponds to a field ID listed below.

Example:

https://docs.airenovationcalculator.com/simple-works-contract?owner_fullname=John+Smith&contractor_fullname=ABC+Builders&property_address=123+Main+St&contract_price=15000&start_date=2025-03-01

Available parameters:

contract_date, owner_fullname, owner_address, owner_phone, owner_email, contractor_fullname, contractor_address, contractor_phone, contractor_email, property_address, work_description, scope_item_1, scope_item_2, scope_item_3, scope_item_4, contract_price, transza1_amount, transza2_amount, transza2_milestone, transza3_amount, payment_method, start_date, completion_date, owner_signature, contractor_signature

Create a simple, contractor-friendly contract for renovation work

Legal disclaimer:

All agreements and documents provided in this catalog:

  • are only private documents of the authors
  • do not constitute a recommendation of a model civil law agreement within the meaning of Polish law.

© 2026 Document Generator - Free for personal and commercial use