I buy brand-new commodity house, why still need to replace door window?

Most of the newly delivered commercial buildings, due to the low standard of Chinese doors and Windows (K = 3.0), make the vast majority of developers reluctant to spend too much on installing high-quality doors and Windows. In Germany, the house price of the doors and Windows used roughly about 10% of the unit price (3000 euros/square meters of housing, doors and Windows are often of about 300 euros per square meter), and most of China's commodity house doors and Windows project unit price during the 500-1000 yuan/square meters, the relatively high house prices in big cities the proportion less than 5%! Low cost determines low quality, low performance and low comfort.

我买的全新的商品房，为什么还需要更换门窗？我买的全新的商品房，为什么还需要更换门窗？

Doors and Windows

Of course, whether to need to change doors and Windows is different from person to person, everyone's pursuit of quality of life is different. But there are more and more customers actively seek we ask for replacement of high quality German xu lattice Windows and doors, and they pay the cost to obtain the rich rewards - the excellent insulating ability, powerful sound insulation ability and high security, drastically improved they lived in this house for 10 years, 20 years or 30 years of comfort!