We have used Dallas Safe & Keys several times and we are satisfied with their work. The last problem happened on a Saturday and needed to be solved quickly, Jonathan responded quickly and arrived much sooner than I expected. He fixed the lock and tested it several times before leaving. I really appreciate the fact that he focuses on doing the job properly, rather than trying to rush through it, the service may not be the cheapest but I consider the quality and reliability to be worth it for us.