We reluctantly agreed to listen to the sales pitch for new windows back in 2014, and were totally surprised about how impressed we were with the sales “pitch”. We decided to replace our windows – 25 in all – and we were so pleased with everything from the removal of the old ones and installation of the new ones. Most of all these windows did exactly what the salesman said they would – most importantly they lowered our heating and cooling costs. I was use to an electric bill in the summer of over $400, but after we got the new windows – the highest bill we had was @ $220! NO KIDDING! The lifetime guarantee was a BIG selling feature when we recently sold our home. Now we are building our forever home and submitting our new house plans to find out how much our new windows from Windows USA will be.