Emergency cistern valve replaced. Admin so helpful with planning and engineers very professional, courteous. Clean and and tidy work. I wouldn't go anywhere else for gas and plumbing work.

I had no idea what I needed, but I knew I had to replace my boiler system and increase the water pressure / performance of my showers, hot water etc. AGS guided me expertly through the process, including helping me to choose the most suitable equipment and systems from the many options on the market. They were always on time for meetings, communicated very rapidly, and their presentation and professionalism is outstanding. Once they started work (on exactly the date they had scheduled), the team were fantastic. The house was always immaculate, they cleared up after themselves as they worked, and the standard of their work is amazing - my plumbing is now a work of art :) Nothing was too much trouble. The work was completed on time and on budget (in fact slightly below budget - they gave me a credit) and the finished result is even better than I expected. I would very strongly recommend AGS for any project large or small, they are first-class.

Boiler broke down - engineer visited the same day and gave clear explanation why a replacement was needed. The appointment was booked - reasonable availability -and the quoted price was fair. Engineers brilliant - courteous, clean and tidy. Workmanship excellent

This was our fourth annual boiler service with AGS Ltd and once again their service from booking the appointment via telephone to completion of the task has been excellent. This time Sam turned up and he was early. Friendly yet very professional and efficient. I remarked upon a recent fault and he investigated and soon found the source of the problem. His office was quickly able to supply a favourable quote and the repair work has been booked in. This will be AGS Ltd's last service at my current home as I am moving in a few months. I have already alerted them and asked that they "move" with me to attend to future plumbing and gas requirements at my new property. I cannot recommend AGS Ltd highly enough.

We still haven't got to the bottom of why the controller resets itself to Midnight on 01/01/10 when the boiler is turned off. This results because it was not noticed immediately that the heat is still on at 2.30 in the morning and I have to get out of bed and reset it then when feeling very hot. best wishes.