Grant Engineering (UK) Limited

I have a Grant filter which is slightly leaking. Plumber wanted to charge me £340 to supply and fit the filter. I contacted Grant and they sent me a 'service kit' with spare washers and fittings.....all Free of charge. Great service and saved me a shed load of Dosh!! Thank you Grant UK.

I have been fitting Grant products for a number of years and have always found them to be really helpful - in paticular John Morris & Rob Dyer are always at hand whenever needed to help with any issues, they always listen to the installer and are willing to adapt new products to help make installation & design easier for installers. A breath of fresh air in an industry where installers aren't being listened to.

Grant boiler are good boilers but impossible to purchase. They are CONSTANTLY out of stock of combi boilers. Turning engineers to go to the much inferior Worcester boilers. Pull your finger out Grant, upscale your production facilities.

Hybrid Air Heat Source Heat Pump I purchased a Grant I8Kw Hybrid Air Source Heat Pump last year. For anyone who doesn't know, it is a combination of the air sourceheat pump and oil boiler, the idea being the oil kicks in when the air source heat pump is struggling to reach temperature. After many months of discussions with the installer, LH Cook and Sons and Grant, I have reached the conclusion the Heat pump is not up to the job. Now the cold weather has come the boiler is running on oil most of the time. I have tried to get a representative from Grant to check the boiler has been install correctly with no luck and LH Cook are learning on the Job. I haven't received a sign off from either company for a job that cost me £16k, that's really not good.

Boilers been faulty since day 1, we had a grant vortex blue boiler installed and it has no worked properly since day 1, alot of the time the setting gets stuck on hot water and won't switch over to heating, spoke to grant about this and because the boiler wasn't registered in the first 30days we have no warranty, which we didn't know as the installer told us it was registered and since he's disappeared. We payed almost £4000 for a boiler that doesn't do it job and grant won't do anything about it. Not even call over to confirm the fault. Rubbish customer service, they used to be a really good company.

Absolutely terrible product and company. We had a Grant VortexBlue internal condensing oil burner with a Riello burner box fitted a year and a half ago. It failed in October last year. After countless phone calls to the service desk and five engineer visits, Grant finally changed the burner box. Prior to this they had changed most of the rest of the parts in the boiler, some of which were defective. Now in February 2023, the boiler has failed again and we are back where we were last October and I really can’t face the thought of going through that same process to ‘fix’ the fault again. We’ll probably just go for a replacement boiler, but I don’t expect Grant to refund the one we have (I’ll update if they do). I’m taking the time to write this so others can avoid the frustration we have experienced with Grant. They may once have had solid and reliable products but not the case with what we bought. Even our installers who are Grant accredited have acknowledged serious issues with this boiler. I recommend you look elsewhere.

We had a grant pellet boiler installed and it has performed terribly. We have spent a lot on maintenance over the last 7 years. We had a 2 year warranty and it was fine for that time. This year, for example, we had a full service in May and then it broke down in October and still isn't fixed now, so we had a whole winter with heating that we had to manually top up every day. I keep asking for a discount on our latest bill but just keep getting told that I am out of warranty so therefore just have to pay the bills. I suspect we will have to remove the boiler and install a new one. Boilers should last more than 5 years!!