Portland, Maine
4 customer reviews
Philippe Lapointe
Very Impressed by the passion and knowledge displayed by their team - Shaun in Vancouver rocks!
Reviewed on Facebook
Chris Briley
These guys are pros!! They understand building science and the building trades.
Reviewed on Facebook
Jeffrey Twitchell
We bought a house full of Intus windows. The windows are unbelievable good. The screens, however, turned out to be a poor fit. Without going into great detail about the problems encountered solving this problem, I want to take my hat off to Performance Building Supply as they stuck with it and provided us with a great final solution. Its easy to satisfy customers when everything goes well but only the real professionals satisfy customers when the going gets tough. Great job guys. Thank you for all of the support and service. More...
Reviewed on Facebook
Ema K.
Hello,We had very pleasant experience to develop business with these guys. Last year we decided to build an energy efficient house so we needed experienced and qualified consultant to advise which windows we have to choose. Wee contacted MGBS and after a month we already had answers to all our questions and quote with price for windows. They recommended  Intus Windows which we had never regrets of. The responses of those guys were quick and informative. Great job, this is how customer service should look like and something we will recommend to all our friends. More...
Reviewed on Yelp