1, don't buy solid wood floor.
It's really expensive, but it doesn't feel much to use. Two months before laying, I felt that everything was fine. However, with the increase of service time, the later wear and maintenance are problems, and it is also very troublesome to replace them. I advise you not to do it. At least make a cheaper and better managed composite wood floor and try to feel it.
You can find a local cabinet processing factory.
If you don't care too much about the brand, you can find a local foundry to process custom cabinets. You will find that choosing some good dishes won't cost too much, which is much more cost-effective and saves money than paying a premium to the brand.
3. The sewer pipe is wrapped with sound insulation cotton.
It is the most suitable to pack soundproof cotton in the sewer of the bathroom, because this job is really too simple, and you can get it by buying materials yourself, but if you find a decoration company to do it, there will definitely be labor and material costs.
If you want to customize the whole house, there is no need to choose a big brand. I suggest you pay attention to the quality of the plate. Just like the cabinets mentioned above, whether you are looking for a local processing factory or some small manufacturers with good reputation, you can actually save money and the quality may be better than those of big brands.