You should immediately contact a specialist if you have a waterproofing issue, leaks, or infiltrations coming out of the roof, terrace, or Velux. This is exactly what our company does best. We are roofers by trade in Hauts-de-Seine and Yvelines. We often intervene to waterproof roofs, terraces, and glass roofs. We can also replace or repair skylights and roof windows. If you have any leaks or seepage, call us now for fast and competitively priced waterproofing. Roof waterproofing, balcony and terrace, flat roof.