My business was 50% maintenence, we would work for a lot of schools, restaraunts, churchs, etc. However when they wanted you, they wanted you NOW!, not 10 min. from now. The good things was that there was always work and money would keep moving. The bad thing was NOW!. I have been out on every holiday you can name. I had atleast 1 or 2 service calls on those days. The rest of mu business was resi. work, we worked for several GC's, 1 or 2 new custom new homes a year, and the rest just customers who want an extra outlet here or there.