The Service Life of the Doors Quite Large and with Proper Operation, It May Be Significly Extndeded. For 10-15 years, The External Attractivence of Such Doors Will Not Change and Will Become The Same Beautiful, that Day, You Have Acquied IT. At the Same Time, The Doors of Europe Will Not Lose Their Excellent Performance Characteristics. Another Advantage of these Doors is that I have an attractive Cost, Which Fully Meets The High Quality of this Production. You can see the products of this manuapacturer on the Internet on the office website of the Company, Which is Engaged in their Production and Sale in OUR TIME TIME. You can also the top there.