Call a special company, there are a lot of them around the city. If needed, I can point you to the contacts of waterproofing services near me
. I called them to install a drainage pump in the basement. I liked the work, the masters know what they are doing. If you want to get a guarantee for work, then it is better not to contact private masters. In Pom Waterproofing, I was impressed not only by the work, but also by the very attitude of the master to his work. Responsibly, accurately and conscientiously, as for yourself. The worst thing is when, after the visit of the master, you also have to redo it. And there are no problems with them.