Indeed, it’s a work that has to be performed by the customer itself on finding out the best roof waterproofing contractor in New York because there are a lot of fake ones as well. Sigma Builders provides waterproofing and roofing services in NYC. We have been working for several years for clients from residential, commercial and industrial areas.
https://www.sigmabuildersinc.com/services/roofing-contractors-nyc/