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Endorsed by Which?
GRNZ Heating & Plumbing
Opening Hours
Today - 07:30–21:00
- Monday 07:30–21:00
- Tuesday 07:30–21:00
- Wednesday 07:30–21:00
- Thursday 07:30–21:00
- Friday 07:30–21:00
- Saturday 07:30–21:00
- Sunday 09:00–18:00
About
Hello, I'm Pierre Andrews, owner of GRNZ Heating & Plumbing.
Based in London, I provide reliable plumbing and heating services across West London, as well as Greater London and beyond. I operate Monday to Friday, with occasional evening and weekend availability. Please note, I only accept phone calls to ensure your inquiry is not missed.
With 10 years of experience, including 5 years at Worcester Bosch, I offer expert, hassle-free service. All labor is guaranteed, and I provide manufacturer warranties.
Services include:
• General Plumbing & Repairs
• Radiator & Shower Installations
• Gas Boiler Installation & Repairs
• Gas Safety Checks (CP12)
• Smart Thermostat Installation
• Power Flushing
For quotes or inquiries, please call.
What we do
Gas installers
- Gas Fires
Heating contractors
- Central heating systems (installation and servicing)
- Immersion Heaters
Plumbers
- Emergency plumbing services
- Unvented cylinder installation and maintenance
- Water softener installation and maintenance
Boiler, central heating and gas engineers
- Boiler installation
- Boiler repair
- Boiler servicing
- Power flushing
- Radiators and central heating
Bathroom fitters
- Accessible bathrooms and showers
- Bath re-enamelling and surfacing
- Bathroom design services
- Bathroom Installation
- Bathroom refurbishment
- Bathroom suppliers
- Bathroom tiling
- Electric Showers
- Wet rooms
My work
Customer reviews
Why you can trust these reviews
All reviews are verified as being genuine and a true customer of this trader.
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5.0
12 reviews
Recommended
Recommended
by 100% of customers
Sort by
Professional and recommended
Customer Service
Quality
Value
GRNZ did a standard boiler service on our combi boiler. The were very clear upfront about possible options and costs, gave us a reasonable quote and provided an online agreement. It was easy to arrange a convenient time for them to do the service. They were punctual, polite, and seemed to do a good job. Would have no hesitation in using GRNZ again for future heating and plumbing work - recommended.
Customer in Greater London
, work completed
Recommended
Efficient, pleasant and diligent
Customer Service
Quality
Value
Needed to replace or repair defunct water heater in my elderly mother’s house Pierre responded promptly and made 3 trips to check exactly what was needed Despite being busy he responded quickly to queries. It was clear from his and 3 other engineers who visited and quoted a new boiler and pipes needed. Pierre’s quote was competitive and he was able to fit us in within a week He spent extra hours with his mate doing the work diligently and calmly
Customer in
, work completed
Recommended
Very efficient and thorough
Customer Service
Quality
Value
Pierre did a great job plumbing in my new washing machine. He was prompt, reliable, friendly, clean and tidy. He answered all my questions, did exactly what I asked and took the time to be careful and thorough.
Customer in Greater London
, work completed
Recommended
Professional, effeient. I would highly recommend
Customer Service
Quality
Value
Contacted Pierre for quote to disconnect gas cooker and cut back redundant gas pipe . He came to see the job promptly and provided detailed itemized quote the same evening. his quote was competitive. On the day he arrived on time. He move the tumble dryer to get to the pipe and did the work efficient and to a high standard. He even moved the old cooked outside for me which was unexpected however appreciated. Asked for advice on boiler and he took time to make helpful suggestion. Its clear he has alot of gas expertise and knowledge. Ill be using him to service my boiler in future and to install a wireless control. Highly recommend him I'm renovating my bathroom later this year and will definitely use him for that.
Which? Trusted Traders Consumer
, work completed
Recommended
Excellent service
Customer Service
Quality
Value
Pierre diagnosed the issue quickly and concisely, sent the quote within a few hours and started work next day and fixed the leaking boiler, talked through what he was going to do. Very thorough and professional, cleared up after and took pictures of the work done. Highly recommended him to anyone that has a boiler issue.
Customer in Greater London
, work completed
Recommended
Cooker Replacement
Customer Service
Quality
Value
I had GRNZ Heating & Plumbing replace my faulty cooker, and I couldn’t be happier! The engineer was prompt, professional, and incredibly friendly. They made the whole process so easy, from removing the old cooker to installing and testing the new one. It’s working perfectly now, and I’m so impressed with their service. I’ll definitely be using GRNZ Heating & Plumbing again for any future needs. Highly recommended!
Customer in Greater London
, work completed
Recommended
Great Service
Customer Service
Quality
Value
He was very professional, polite and kept his working area tidy. He also kept me informed of what he was doing.
Customer in Greater London
, work completed
Recommended
A fantastic repair
Customer Service
Quality
Value
My heating would not switch off. I selected GRNZ from Which? Trusted Traders because he was quite local, and I was extremely lucky that Piere was able to call that day. I found him to be friendly and polite, and he spent some time making sure where the problem was, which was a faulty valve. Then in the afternoon, I received a call to say he could come and replace the part. I was delighted! How could I be so lucky? We paid Piere a moderate amount for his time plus the part by BACS, and he emailed an invoice the following day. As an afternote, not only is our heating now working as it should, but since the repair it seems to be more efficient than it ever was.
Customer in Greater London
, work completed
Recommended
Endorsement Reference
Customer Service
Quality
Value
Had some boiler work done and carried out by a very professional man, did everything I asked him too and had a look at my radiators as well but didn't need anything done to them. The work was fast and done in no time at all, reasonably priced for the work I had done. 10 out of 10 service. 10 out of 10 tradesmen.
Which? Trusted Traders Consumer
, work completed
Recommended
Endorsement Reference
Customer Service
Quality
Value
I had my boiler serviced by a young gentleman, he replace any defective parts and also assisted me with some water pressure issues I was having, was fast and effective and I will be recommending him to family and friends.
Which? Trusted Traders Consumer
, work completed
Recommended
Endorsement Reference
Customer Service
Quality
Value
Service and blocked sink
Which? Trusted Traders Consumer
, work completed
Recommended
Endorsement Reference
Customer Service
Quality
Value
Had my taps changed. Was done at a good price and work was done fairly quickly. Very happy with the way it turned out.
Which? Trusted Traders Consumer
, work completed
Recommended