Once the time has come for the roof to leak, a decision must be made as to who will repair it. One option is to repair the roof. By purchasing the waterproofing materials yourself, you also organize the laying of the waterproofing on your own. Another option is to trust a professional. When you are about to repair the roof, if you will not do it on your own. It will probably be difficult for you to choose who to trust. The competition of the brigades and the companies offering this activity is great. In general, different companies offer the same service, but with different prices.