Breakdown of prepayment (usually 50–100%) and final payment upon completion.
Verify if the "standard installation" includes removal of old windows, installation of flashing ( отливы), sealing (mounting foam), and adjustment of fittings. dogovor montazh plastikovye okna
Ensure the contract mentions installation according to ГОСТ 34378-2018 (or the updated 2024 equivalent). installation of flashing ( отливы)
Договор подряда на монтаж ПВХ окон - Amulex sealing (mounting foam)
Signed after inspection of the installed windows.
Here are the key components and a breakdown of what to look for in the contract, based on standard Russian industry practices: 1. Key Components of the Contract