Reviews

Aziz and Chris are outstanding. They are so thorough with their work and everything is completed to an extremely high standard. They are both lovely people and a pleasure to have in the house. They are very punctual and excellent at communicating. We are so grateful to them for repairing various plumbing issues and they will be our first port of call for anything in the future.

Aziz and Chris did a fantastic work of installing a new boiling and heating system in our apartment. Certified Group agreed to take this installation work in a very short notice and that too in the end of October just ahead of winter season which is highly anticipated. They managed to effectively complete the installation in 5 working days which involved dismantling existing boiling and heating system, procuring materials for installing new system, providing demo of the new system. Both Aziz and Chris had great knowledge and skill and were experts in this installation. Highly recommended!

Absolutely Outstanding Central Heating Service! From start to finish, this company exceeded every expectation. I was initially nervous about replacing my old central heating system, but their team made the entire process smooth, stress-free, and surprisingly enjoyable. The quote was clear and competitive, with no hidden costs or last-minute surprises. The engineers arrived exactly when they said they were professional, respectful, and clearly passionate about their work. They took the time to explain what they were doing, answered all my questions, and left the place spotless. Thank you

I've used Aziz and his team for a few jobs now; he's always great to work with with — and the work itself is great. I had a slow leak in a pipe in my living room, skirting board had to be removed, pipe exposed and repaired and the whole made good. Aziz and his team did exactly what they said they would, they are always so courteous and kind, and they do the work beautifully and also clean up beautifully. I highly recommend them.

I've been using Certified Group for years for plumbing and heating works. This instance was a toilet replacement. I am happy with the cleanliness and the quality of the work carried out. I will continue to use them and recommend them to anyone.

Aziz and his team from Certified Group Ltd did a wonderful job on my bathroom. My shower/bath taps were replaced, plumbing in my sink and toilet repaired and a new toilet installed. Aziz was thoughtful in explaining what needed to be done: communication was excellent. Work I'd had done previously was failing: I could see this with my own eyes and Aziz came up with great solutions to the issues I was facing. He was always clear about timing and pricing. He documented all his work and he and his team always cleaned up spotlessly at the end of each day. I recommend this company wholeheartedly.