Green Horizon Energy installed an air conditioning unit for us. We were very impressed by their work. Before the installation they answered all our queries thoroughly, making sure we had the right unit for our needs. At our home, they were both friendly and efficient, making minimal mess and clearing up everything before they left. We have been using the unit for 2 months now and only wish we had opted for one before. Our next door neighbour is so impressed he is planning to have a unit installed shortly. Overall, a job well done by a very professional company.