This is the 10 company with the best quality and the oldest qualification in Beijing, ranking in no particular order.
Boloni and Dongyi Risheng are too expensive, but the design and technology have nothing to say. It depends on whether you can afford it.
At present, Shichuang is a packaging company. I advise you not to go. There are too many condoms in it, and even the cleverest person will fall into it.
Others, such as Yaguangya, Yuanzhou and Yezhifeng, are all good, with average price, good quality and good reputation.
I suggest you go to Easyhouse in Beijing's North Fourth Ring Road to visit home improvement, because Easyhouse in Beijing's North Fourth Ring Road is the best home improvement market, with large passenger flow and high customer quality, so there are many designers, and the powerful designers are all from those home improvement companies.
The price is hard to say. I used to do home improvement, and I worked in two companies, so I won't talk about it in order to avoid the suspicion of advertising, but in general, water and electricity are the most profitable for home improvement companies and workers, so let them cheat you a little, otherwise the workers will definitely not give you a good job.