AVOID THIS COMPANY. We had a boiler installed which straight away had poor performance, complained to Glow Green and while that complaint was being 'dealt with' more serious faults became apparent including the installation which led to the BOILER BREAKING DOWN and after finally having a visit from Vailant, the WARRANTY WAS VOIDED by their technician. This is after a winter weekend with no hot water or heating, to be fair the Glow Green tech did come out to look on Friday night but just drove off and we never heard from him again. Goes without saying Glow Green stalemated the first complaint, they then cancelled the 2nd complaint without notifying me which I then complained again and I never heard from them again. Their complaints people waste your time, leave long waits in getting back to you, leave you on hold for ages and run you in circles and then leave you hanging while all the time with a defective installation. There are other issues with the installation including Glow Green using the old broken filler loop tap, not lagging the pipes in a cold zone install PLUS it LEAKS! - who wants to keep a bucket under their new boiler? When I tell plumbers that I had Glow Green install my boiler they laugh. This All started in November 2021