Endorsed by Which?

AZ Plumbing Contractors Limited

4.9

118 Reviews

Opening Hours
Today - 24 hours
  • Monday - 24 hours
  • Tuesday - 24 hours
  • Wednesday - 24 hours
  • Thursday - 24 hours
  • Friday - 24 hours
  • Saturday - 24 hours
  • Sunday - 24 hours

Why you can trust this trader

After undergoing rigorous assessment to become endorsed, every Which? Trusted Trader agrees to our Code of Conduct. This gives consumers the reassurance that they have the best possible protection and adds an extra layer of security to ensure best practices and procedures are followed. Which? fully investigates any breaches and will take any necessary action to ensure consumer protection.

Organisations and Awards

Jun 2020

About

AZ Plumbing Contractors Limited are a local family run plumbing and heating company based in Islington, North London. All our engineers and plumbers are qualified with over 10 years experience in the industry. We can tackle all your plumbing needs from routine tasks to major repairs and brand-new installations. No job is too small or too big for us.

We take pride in the services we provide, always ensuring customer satisfaction is met through a provision of high-quality standards. We have built our foundation on being a friendly and professional plumbing company who always go the extra mile for our clients. Therefore, our clients have been consistently reusing our services and recommending us to their neighbours, family and friends over the years. Please have a look at our customer reviews as they speak for themselves.

What we do

  • Boiler, central heating and gas engineers

    • Gas cooker installation
    • Gas emergencies
    • Gas safety testing and inspection
    • Radiators and central heating
    • Underfloor heating
  • Heating contractors

    • Central heating systems (installation and servicing)
  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance
  • Gas installers

  • Renewable energy

  • More Services

    • boiler servicing
    • boiler repair
    • boiler installation

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

4.9
118 reviews
Customer Service
4.9
Quality
4.9
Value
4.8
Sort by
Bathroom Plumbing
Customer Service
Quality
Value
Surpassed my expectations. Arrived promptly and resolved my plumbing issue in under an hour. It was an issue that had perplexed other plumbers, but AZ fixed it, not only speedily, but also for a very reasonable fee. I knew I was in good hands when they immediately covered their shoes on entering my property. I will have no hesitation in either engaging them in the future or recommending them to others
Customer in Greater London Posted on 22/07/2026 , work completed 22/07/2026
Solid job
Customer Service
Quality
Value
Really clean work and reliable on timing. Everything was done as expected and to the agreed estimate.
Customer in Greater London Posted on 20/07/2026 , work completed 16/07/2026
Finally — someone who actually knows what they’re doing
Customer Service
Quality
Value
Adam and Kirsty were absolutely brilliant — couldn’t recommend them more and they’ll be my first call for anything plumbing going forward. They were the third engineers I brought in for persistently low water pressure, and the first to actually solve it. Within 15 minutes they identified the root cause — a pressure differential that had been missed by two other companies AND the developer’s own engineers across multiple visits. Fully equipped, zero fuss, clear explanations throughout, and even helped with a secondary issue on the same visit. After too many experiences with big-name companies that send box-ticking engineers who achieve nothing, finding a team that actually diagnoses properly and delivers on the day is a breath of fresh air. Don’t waste your time elsewhere — just call AZ Plumbing!
Customer in Greater London Posted on 05/06/2026 , work completed 04/06/2026
Plumbing
Customer Service
Quality
Value
Replacement of a waste trap and pipework. I always ask Adam to do any plumbing work at my property. He always does a really good job. He is very knowledgeable, honest, reliable and considerate. Would highly recommend.
Customer in Greater London Posted on 29/05/2026 , work completed 26/05/2026
Hot water back on board!
Customer Service
Quality
Value
Our boiler had completely broken, but Adam came out on a Sunday, two hours after calling him. He diagnosed the problem which will need a complete draining of the boiler. To give us hot water to be getting on with, he mended our (broken) Immersion and is returning to do the whole boiler. Absolutely faultless! Recommended for speed, experience and expertise.
Customer in Greater London Posted on 11/05/2026 , work completed 10/05/2026
Fantastically quick and efficient
Customer Service
Quality
Value
We needed an outdoor tap replacing, Adam and his team came early, and replaced it with a lovely new one in the time it took my husband to eat an omelette. So, very quick. Absolutely ideal. Recommended.
Customer in Greater London Posted on 09/05/2026 , work completed 06/05/2026
Unresponsive
Customer Service
Quality
Value
Adam let us down and we found him unresponsive. We chased him up with an email and several phone messages both to his mobile and landline but we did not hear from him. He asserted he had not responded because our email had gone into his spam folder. Thanks to the helpful intervention of Which he eventually refunded our payment "as a gesture of goodwill".
Customer in Greater London Posted on 18/02/2026 , work completed 03/11/2025
Superb Plumber!
Customer Service
Quality
Value
I have finally found a plumber who is reliable, hard working, conscientious and gets the job done. I have called upon Adam a few times recently and he has solved the problem every time. He also fitted me in when he had a busy schedule. I wouldn’t hesitate to call on AZ Plumbing again.
Customer in Greater London Posted on 21/01/2026 , work completed 20/01/2026
Highly Recommended
Customer Service
Quality
Value
I was very impressed with all aspects of AZ Plumbing from initial contact through to completion of work. Adam and his team were fantastic. Highly recommended.
Customer in Greater London Posted on 19/01/2026 , work completed 15/01/2026
Another problem solved.
Customer Service
Quality
Value
Another visit for another central heating problem that was giving me a lot of worry. Solved and sorted, but it took some time. As always, Adam's visit was a pleasure and he was very reassuring.
Customer in Greater London Posted on 08/01/2026 , work completed 08/01/2026