We researched/met with a number of companies and looked at vinyl, wood and fibreglass windows. Inline Fiberglass took a lot of time to talk to us and explain about the benefits of their product. The sales rep was very knowledgeable as were the installers. The only reason that they did not receive a 5 out of 5 for satisfaction was due to delays with the installation date. Once it was brought to the attention of the Regional Sales Manager, the installation date was firmed up. Since we have had the 22 new windows, the change is remarkable. We are extremely pleased with the quality of the product and installation and would recommend them highly.