All in One modular software for a commercial and residential electrical contractor

PLEASE READ ENTIRE QUESTION--I am looking for a recommendation from someone who had had FIRST HAND EXPERIENCE with software for an electrical contractor; this electrical contractor works in both the commercial and residential markets and does work on new as well as existing properties. They are looking for a solution that incorporates construction accounting (G/L, A/R, A/P, etc.), a service module for work orders, scheduling, dispatching, as well as T&M billing (mobile tracking included), along with a mobile app that includes invoicing & payments. They also want project and materials management for their bigger commercial projects, and proposal management that can easily be turned into actual jobs.  PLEASE DO NOT SEND ME LINKS TO SITES THAT COMPARE SOFTWARE as I have already done that myself--I have looked at a lot of sites that contrast and compare supposed constructor specific software but when I call and speak to these companies most are general purpose companies and DO NOT have the special and unique features needed in the electrical construction, maintenance and repair business. That is why I am asking for recommendation only from those who have had first-hand experience with actually using and/or implementing software in this very specific industry. They DO NOT want a solution that calls for combining solutions from many different companies, Thank you very much for your time.