Highly recommended. I had requested quotes from several companies and only RK Solar phoned to make an appointment, came down to check our switchboard and discuss our needs. The quote was prepared at our home and the sales person was able to answer my questions (note I received quotes from other companies, I asked questions about the set-up of panels on the roof, namely some wanting to install panels on the south & south-east). Price was good & competitive. The installation took place on the date agreed, the work was neat: cables were installed in the cavity, some of our roof tiles needed to be replaced which was carried out, job was done in 1 day: we have a system with 30 panels on 3 different areas on the roof. We have today a system installed & working, easy to monitor so recommending RK Solar, they obviously are experienced and carried out a good job.