1. Free Consultation. A showroom manager will offer you an optimal order option based on your individual product requirements and preferences for sound and thermal insulation. At this stage, a preliminary cost estimate and modeling of constructions will be made.

2. Free Measurement. At an agreed-upon time, a showroom specialist will visit the installation address, take professional measurements, and provide additional recommendations for the order on-site. At this stage, it's possible to further adjust the dimensions of windowsills, window sills, and options for slopes.

3. Order Processing. The showroom manager will make a final check and calculation according to the measurements taken. The client verifies their order: profile name and brand, type of insulated glass unit, hardware options, as well as window accessories in the order form. Payment can be made partially or in full, and there's the option to apply for bank credit. Signing of the contract between the client and the factory dealer. Agreement on the delivery date, installation of constructions, and additional work.

4. Manufacturing. According to the factory's regulations, your products will be manufactured within the stipulated timeframe after the order details are entered into the system by the order processing department and payment of the invoice by the dealer.

5. Installation. On the appointed day, showroom specialists will install your new windows following technical installation rules. After installation, it is recommended to check the product's readiness for use together with the installer—opening, locking, tilting of sashes, micro-ventilation, and other options selected when ordering.

6. Service and Guarantees. Osnova offers a 5-year warranty for the finished product, 1 year for additional components (windowsills, sills, locks, hinges), and 20,000 opening cycles for hardware. Exceptions and limitations to the warranty should be clarified with the factory dealer.