Very bad experience, horrible service Very bad experience. I have the combi boiler installed two years before by this company, but it did not provide hot water. Glowgreen sent two technicians to us but they didn't solve the problem. Finally, I have to find a local engineer coming to fix the system. I have sent dozens of emails and phoned them at least twenty times. Their customer service team kept changing contact persons and lost contact after 6 months. I keep all communication records for public check (email) and here is my complaint reference code GG-TK-008152 on Friday 20th December 2019. Be careful! They rather sue you than provide a satisfactory service.