Great service. Fast and efficient!

Great company! Sorted what wasn't a small problem, didn't leave until the job was finished. Would highly recommend

Had trouble with radiators not running. Engineer managed to get them working without needing to replace anything. Gave good advice on future problems which may occur. Excellent work.

Very polite professional and kept me up to date with any planned work plumber turned up on time (early) was a nice guy

Always my go to company for heating and boiler maintenance etc. They have 5 stars for a reason...they're good at what they do. Lauren the office manager is professional, fully customer focused and exceptionally proactive. She does what she says she's going to do. A rare thing. If you're looking for stuff to get done, these guys deliver.

A great company, all the members of the team are great from office staff to engineers. Could not recommend more! This company is so customer focused and will go above and beyond to help.

Came on time and very professional, picked up the problem. Will be coming back with part

Firstly I was impressed with the booking system at their website, then got even more impressed with the punctuality of the engineer. Boiler service was done very professionally and at very good rate. Definitely would recommend it to others and will be using this company in the future. Thank you Grand Union 🙂

Very fast and efficient services. The engineer spot the problem immediately. I would 100% recommend Grand Union to anyone. Well done

Grand Union are in my experience the best plumbing and heating company I have ever encountered. I honestly cannot rate them high enough for speed of response, service, knowledge, professionalism and friendliness.