We have used this company on more than one occasion to produce custom mirrors for us. In 2 cases, the dimensions required were quite exact with no room for error. After calling several companies to obtain a quote, we were surprised to find that although differences in pricing were relatively small, there was quite a difference in the length of time to produce the finished product. National Glass & Mirror were extremely competitive in pricing and consistently faster in production time. Although it is a small facility with a minimal showroom, the staff are extremely knowledgeable and friendly to deal with. They have also provided excellent advice on the best ways in which to securely hang larger unframed mirrors. Our mirrors have always been made exactly to our specifications.....no surprises with this company.