This one of the most horrible services available for folks around Thipasandra Indiranagar , I will request everyone to avoid. Had asked them to do descaling , they suggested that I fit a new thermostat , heating rod etc, gave me a bill for around 2k+ . Within 3 months I started having problems. When ever I call these guys up , they say they will be sending across some to check it up. And till date no ones turned up. Just AVOID them. I should have read the previous comments earleir , seems like we all in the same boat, they should not be given any stars, however that one star means - Very Bad !