When carrying out major repairs to perform the work of ushas, they leave the apartments for 4 days in unsanitary conditions (water supply and sanitation are turned off), do not use dust removal devices. The whole apartment, furniture and things are covered in cement dust. After them, you need to call cleaning and make repairs again.
More losses than benefits and a waste of nerves. I do not recommend this organization because the work plan is not set correctly and stretches for a long time.
Example in Minsk, the 9th house is dismantled and installed for 1 day and people are from convenience, here a 5-storey house is 4 days in dust and dirt.
People need to complain more, then the quality will probably improve.