I can only speak highly of this company. I had a 1.5k system installed by TVS several years ago, back in the days when this was still relatively new for home owners. All seemed good at the time, but I soon realized that the initial install was done by cowboys!. Inverter not weatherproof, but installed on outside wall. It died first heavy rain we had. However, TVS had tech out to replace it within days of my phone call. A couple of years later the replacement inverter lost it's display. It still worked ok though. TVS had a contractor out within a few weeks to check it out. Seems like the whole system was not installed to regulations. The contractor re-wired and re-mounted the panels, installing isolation switches, new inverter. All costs met by TVS. So probably 5 years after install, they sorted everything out, never questioned me or tried to get out of obligations. This to me is a testoment of good customer service! I have now chosen to get my systen upgraded, adding another 3k to my existing 1.5k. TVS again have got my job. Will see how it goes. I have nominated my preferred installer, which they have agreed to.