Never again. I want my $63.55 "diagnostic" fee back but I'm frankly afraid to call these creeps again. When my pool pump wouldn't work, they quoted me $1400 to fix the wiring. This included $300 for a new timer, which they insisted I also needed. When I hesitated at dropping over a grand the electrician became VERY pushy, called me several times to pressure me, and eventually resorted to scare tactics (your pool will be ruined if we don't do this TODAY, etc). I got a second opinion from the excellent Bryan Selberg at Selberg Electric (see my separate review), who did the work for $625 (this included digging a new trench and laying a new line, something GB hadn't even offered to do) and assured me my timer was fine (it is).
These guys are terrible.