Experience of the manufacturer, manufacturability, compliance with the stages of installation, qualification of installers - that's the most important thing. Before ordering, carefully examine the website of the contractor - is it really a manufacturer, not an intermediary, whether the company has its own installation crews, what guarantees you get.
Experience of the manufacturer, manufacturability, compliance with the stages of installation, qualification of installers - that's the most important thing. Before ordering, carefully examine the website of the contractor - is it really a manufacturer, not an intermediary, whether the company has its own installation crews, what guarantees you get.