UPVC window and door are the most commonly used building materials in home decoration. Plastic-steel doors and windows have a multi-cavity structure, which has good thermal insulation properties, and has good performance in terms of appearance, color, and corrosion resistance.

As an "energy-saving and environmentally friendly" building material product, UPVC Profile doors and windows have always been favored by decoration companies and ordinary people, but energy saving does not mean environmental protection.

UPVC window and door is a new generation of door and window materials, which have the advantages of high wind pressure resistance, good air tightness and good water tightness. However, if you want to extend the service life of UPVC window and door, you should maintain it.

Most people knew the performance of UPVC Window before the renovation, so they chose UPVC Window. But after installation, it was found that the windows were leaking. What are the reasons for the air leakage of UPVC Window? How to solve it?Reasons for air leakage of UPVC Window

UPVC Profile doors and windows must be installed in compliance with specifications. It is difficult for consumers to have tools to check the quality of the windows. LUMEI Profile manufacturers tell you a few tips, which can be selected from the following factors