Missing evidence lowers the score because we can't check it. It doesn't mean it doesn't exist. Claiming a profile never changes the score. Evidence context, not a guarantee of workmanship.
These reviews are published independently on the named public source below, not testimonials this business chose to show. We bring them together and link each one back to where it appeared, so you can open the source and read it yourself.
5.0out of 5
29 reviews in public evidenceReviewed on public review sources since 2019Most recent review
Customers often mention
Friendly & politeMentioned in 52% of reviews we've read
ProfessionalMentioned in 40% of reviews we've read
Where these reviews are published
Which? Trusted Traders29 reviews · 5.0 avg
Detailed reviews
These are the individual reviews we hold for Polkadot Plumbers Ltd, including the highlights above. The 29 headline total is the review volume reported across public review sources.
Customer in Greater London
Customer recommends this business
Provided a heating and boiler service, reconnect to the HIVE system
Recently underwent some improvement works at home and another contractor caused sone problems with my boiler, HIVE and heating system. Pokadot came out and serviced and serviced the boiler, radiators and HIVE system. Turned up on time and get everything working again. A job well done. Excellent job. Highly recommend Many thanks.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Bathroom - Replacing taps and installing new sink
I came across Polkadot Plumbers on the Which Trusted Traders website and booking the appointment was quick and straightforward. The first job was for initially just replacing the HW bath tap and installing a shut-off valve. I was really happy with the result and made a second appointment for replacing the CW tap and installing a new sink in the bathroom. I'd like to say a big thank-you to Paul the plumber who carried out both jobs, he was reliable, approachable, tidy and carried out excellent work. I will definitely contact Polkadot Plumbers again for any future work.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Upgrade to my bathroom
I am very pleased with the comprehensive work Polkadot Plumbers recently completed, in October 2023, in my small but intricate bathroom. Their initial survey was thorough, the estimate was detailed, they took on board my requests, and sent an experienced plumber to do work which included some unknowns prior to the dismantling of a sealed bath. The plumber discussed with me, the client, any complications that arose and how he would proceed to ensure that everything was both watertight and aesthetically pleasing. The work was carried out with thoroughness and an attention to detail. It is not easy to find good people and I fully recommend Polkadot Plumbers.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Boiler Service and Nest fix
Excellent service. Engineer came to complete a boiler service and to troubleshoot a problem I had with my Google Nest thermostat. On time and carried out according to schedule. Both done very efficiently and in a professional manner. At the same time, he noticed odd boiler behaviour and after inspection identified incorrect setting in the wiring centre; this meant the boiler was constantly running, even when not on demand. He promptly solved the problem, which will reduce my bills. We also discussed water pressure issues and gave me advice and options to think about. All in all, very happy and will be certain to use again.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Investigate a leak from a soil pipe
Very good. Jonathan was very professional and patient with us. He found the problem quickly and came up with two solutions and finished the work in a neat and timely manner. It is a shame that we did not use you for our boiler replacement. Thank you again.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Read the other 15 detailed reviews on this pageShow fewer reviews
Customer in Greater London
Customer recommends this business
Replacement shower head and hose in bath
Polkadot did an excellent job. None of my bath tiles were broken; the shower head is excellent; grouting well applied. Very happy with the job.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Prompt, efficient service
Polkadot Plumbers installed a new sliding shower door 18 months ago. Yesterday it came off its rails and was too heavy for me to reinstall. A call to Polkadot this morning resulted in a visit booked for this afternoon. I agreed to the minimum one hour call-out fee. Henry, the engineer, was able to come earlier than booked and replaced the door within five minutes. He removed his shoes and was polite but friendly. Polkadot then invoiced me for only half an hour’s work: very good value for any urgent call-out.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Nicola in Greater London
Customer recommends this business
Brilliant service.
I had a leak in the mains pipe, plus one in a radiator, and needed the boiler servicing so combined all the jobs in one. From the start I was impressed by the friendly service on the phone, I managed to get an appointment for the following morning, which actually ended up being earlier (which was very convenient) - the plumber was very friendly, knowledgeable, smart and quick. They did an brilliant job and I was very impressed with the value for money. I wouldn't hesitate to recommend Polkadot Plumbers, and would use them again in a flash.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Excellent service
I needed to find a new plumber after the one I’d been using for over 20 years retired and I contacted Polkadot Plumbers after reading their excellent reviews on Which? Trusted Traders – owner Jack promptly arranged for Jonathan to come round to replace my bathroom taps. Jonathan was unfazed by the decades-old plumbing and suggested adding flexible connectors to improve the connection between taps and pipes, and he made sure I was happy with his work before he left. A few days later, a previously suspected slow leak worsened and this time Harry arrived to investigate. Like Jonathan, Harry was calm and undaunted by the ancient pipework. The leak was caused by a pipe buried in the concrete floor and Harry returned a few days later to dig it up – though on his return, he suggested a less invasive option of rerouting the pipe, which also worked out cheaper. Both Harry and Jonathan were polite, calm and professional and they collected and disposed of the rubbish. Polkadot’s rates are clearly stated on their website and they are very competitive. I am happy to have found such an excellent company and I will certainly use them again in future!
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Hertfordshire
Customer recommends this business
Polkadot Plumbers -- I highly recommend this company
I feel so blessed to have found this excellent plumbing company, and I can highly recommend Polkadot Plumbers: I was most impressed the first time I got in contact with the owner, of Polkadot Plumbers; as unfortunately, I had problems trying to book future appointments with another plumbing company! Not only was Jack polite, he was able to 'pencil in four appointments straight away for the dates I wanted, to coincide with the carpenter; as I'm doing extensive renovations in my home, especially as I'm having loads of renovation works done in my bathroom and kitchen, and it's important the plumber and carpenter are there at the same time! Egis, the plumber did an excellent and thorough job on the plumbing in my bathroom; as unfortunately, the pipe works were done badly, over 20 years ago, and it has now been corrected. I also like the fact, all quotes are fully itemised, and there is a price list on their website, and you know exactly what you are paying for.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Aydin in Greater London
Customer recommends this business
Professional, friendly and great job
Really friendly guys from start to end. Great job at a fair price. Would definitely use again.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Very reliable company
I asked Jack to advise me on options for replacing a 13 year old shower sliding door unit. He recommended a better quality replacement. His team of two came on time and were very thorough and professional, removing and disposing of the old unit and installing the new one. They also resealed the shower and shower tray. They were polite and tidy and cleaned up at the end. My wife was very impressed.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Harriet in Greater London
Customer recommends this business
Wouldn't use anyone else!
Reliable, fast, reasonable and honest plumbers. Jonathan is very personable and helpful in explaining the workings behind issues. Wouldn't use anyone else!
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Excellent
90 minutes after my call to Jack Ronan my blocked loo was sorted. The plumbers were professional and courteous and I would not hesitate to recommend Polkadot Plumbers more highly. This is an excellent business.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Excellent service, as ever.
This is the second time that I have used Polkadot Plumbers and I can honestly say it is a pleasure to work with them to resolve matters. From the friendly nature of the of immediate quote, to timing and guidance regarding initial consultation - to then possible remedies and time for the work To ultimately to trades person professional nature to solving the issue in the expedited time. This time it was only and pump underneath a sink - but the manner to which the problem was solved and solutions were provided it was greatly appreciated. May use again to re-furbish kitchen and bathroom in future. Great work from Jack and the team!
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Excellent service
This is the first time I have used Polkadot Plumbers and I will definitely being doing again if I have further trouble. My apartment is not easy to get to and many other plumbers (local and/or well known with their primary coloured vans) won't visit or will ask for stupid waiting time allowances. The project was not easy considering the age of the property - 2 new ballstop valves, new toilet flush, sink waste pipe management, flexible piping for water storage heater. This was a constant problem for myself and also for the Trades person but the manner at which they calmly set about solving each task whilst keeping me informed of the progress and rationale for the issues was welcoming. No lies, tricks, delays... straight up problem solving and solutions. Great work from Jack and the Team!
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Complete boiler and hot water cylinder replacement
We needed to replace our boiler (27 years old) and pressurised hot water cylinder. It was a tight fit in an existing cupboard. The team from Polkadot were excellent (Harry and Fred). They planned the job carefully; were thoughtful and keen to do a high quality job. They certainly did that! Really nicely organised pipework. So much better than what we had before. They were also pleasant to deal with. It is always stressful having this type of work done - no hot water for several days - but they did their best to keep inconvenience to a minimum and communicated well as the job progressed. Before the job started they gave a detailed estimate breaking down the time requirements and materials involved. So, overall I would have no hesitation in recommending them for a high quality job, fairly priced.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Full marks to the sewage guys
Not everyone wants to come and sort out a sewage problem and do it promptly, cheerfully, stay very late to get it done and apply independent thought to solving the problem. We strongly recommend the Polkadot sewage guys who were excellent putting their camera down and explaining all the way what they were finding, so we were really well informed. Plumbers Jonathon and Harry were efficient and smart. They helped by very carefully removing the loo and replacing it at the end, finding and solving more problems. Not a mark on the tiles when they finished, leaving everything clean and tidy.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Devon
Customer recommends this business
Totally reliable and excellent service.
I have used Polkadot Plumbers on two occasions now. They are 100% reliable and professional and I will continue to use them for all my plumbing needs. Truly great service.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Greater London
Customer recommends this business
Thorough and professional
We needed a new tap for our bathroom sink and wanted some remedial work done at the same time: removing and replacing mouldy sealant behind the sink and bathtub, replacing missing and mouldy grout, fixing a loose waste pipe, etc. We weren't sure we could find plumbers willing to undertake such fiddly work, but the reviews here made us think Polkadot Plumbers might be. We're very glad we called them - not only did they undertake the work and charge a fair price, but Jonathan did it to an extremely high standard and was very pleasant to deal with as well. We'll certainly be calling on Jack Ronan and his team for any future plumbing work we need done.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Local context
Rated 5.0, above the local average for plumbers in London
Across 1316 plumbers in London, the typical rating is 4.9 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
02
From customer reviews
What customers consistently say
What this trader's customers report about their jobs, in their own words. Analysis updated 19 Jul 2026.
Respectful and tidy in your home: “he was reliable, approachable, tidy” · Which? Trusted Traders, 13 Jun 2024
Credentials and associations
Credentials and memberships
2
These credentials and memberships are attributed to named public sources. Check the source before relying on them.
REFCOM (F-Gas register)Listed, current status not shown
Why this helps you judge trust: this trader is linked to a registered company with named people who are legally accountable for it, on an official register anyone can check, a layer of accountability an unregistered trader doesn't offer. Around 7 years on the register also points to an established business rather than a brand-new one.
Source-listed gallery
Photos listed on Which? Trusted Traders
5 photos
These sources do not label every image as completed work. The gallery may include projects, people, logos or certificates, so it does not count as completed-work evidence.
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From Which? Trusted Traders
Opening hours
The hours this business publishes online, handy for knowing when to call. Confirm before you set off.
Monday–Friday
9am–5pm
03
Sources
Where this information comes from
3 named public sources
Everything on this page is drawn from named public sources. Where a source provides a public link, you can open the original and dig deeper.
Check dates vary by source. Where we hold a date, the check shows it.
04
About
Polkadot Plumbers was founded in 2019 by Edinburgh University graduate Jack Ronan. Jack left the Army in 2016 and immediately retrained as a plumber and gas engineer, viewing the heating and plumbing industry as somewhere that he could put his transferable skills to good use. With the mentality that professionalism and efficiency come as standard, Jack and his team have built Polkadot Plumbers into a plumbing business that delivers an extremely high standard of work with excellent customer service, time and again. Trees for Cities - We are very excited to be partnered with the amazing charity Trees for Cities. For every boiler we install, Trees for Cities plant a tree. Gas Safe Registered Our engineers are fully qualified to work on domestic and commercial gas appliances. NVQs Our engineers are City and Guilds qualified. NICEIC Our electricians are certified by the National Inspection Council for Electrical installation Contracting.
Services they list
Gas FiresCentral heating systems (installation and servicing)Immersion HeatersWet roomsElectric ShowersBathroom tilingBathroom design servicesBathroom InstallationBathroom refurbishmentAccessible bathrooms and showersBoiler installationBoiler repair
Listed on public sources or the business's own website; check directly that they cover your job before you book.
These are statements the business makes on its own website, worth confirming in writing (and on the official registers) before you hire, not independently verified by us.
A real, registered businessWe cross-checked Companies House: this business is officially registered for work that matches the plumber services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry.
✓
How long they've really been tradingThe earliest independent record of them trading is 2019, so at least 7 years. They appear in 2 separate independent sources.
Company registered2019First public review2019Website online since2019They say, established2019
Your own checks
What to check before you hire
Worth checking yourself
Always confirm credentials and quotes with the business directly before hiring.
Verify at the sourceCheck them yourself
Approved plumbers on the free WaterSafe register are vetted, qualified to the water regulations and insured. Check they're listed, or find a WaterSafe-approved plumber near you.
Agree the call-out fee, the hourly or fixed rate, and whether parts are charged on top, in writing, before an emergency plumber starts. Out-of-hours overcharging and 'while I'm here' add-ons are common complaints.
✓
Be wary of a plumber who, on a first visit, says your whole system or boiler must be replaced. Get a second opinion and an itemised quote (parts and labour separately) before agreeing to major work.
✓
Gas and boiler work is a separate, regulated trade, not general plumbing. Make sure anyone working on a gas appliance is specifically registered to do gas work, and ask to see that registration before they start.
Want an extra legitimacy check? Run the Cowboy Checker on Polkadot Plumbers Ltd before you contact them.
Polkadot Plumbers Ltd has 29 independent public reviews, rated 5 out of 5. It is a registered business on Companies House, listed as active, and the public register shows no adverse status (no dissolution, insolvency or strike-off) against it. This is independent public evidence gathered from named public sources (no ads, no paid placement), not a guarantee of workmanship. If anything here is out of date, the business can request a correction.
What do customers say about Polkadot Plumbers Ltd?
Polkadot Plumbers Ltd has 29 public reviews, averaging 5 out of 5. You can read the individual reviews and where each came from in the reviews section above.
How do I know Polkadot Plumbers Ltd's reviews are genuine?
Polkadot Plumbers Ltd's 29 public reviews come from a named public review source, and MyTrustedTraders links every one back to where it was published, so you can open the source and read them yourself rather than trusting a single curated page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.
Is Polkadot Plumbers Ltd qualified and accredited?
We hold 2 independently sourced credentials for Polkadot Plumbers Ltd, including REFCOM (F-Gas register), Which? Trusted Traders. Each is attributed to the body that issued it in the credentials section. For example, REFCOM (F-Gas register) is the UK register for businesses that handle fluorinated refrigerant gases, which the law requires for refrigeration and air-conditioning work.
Is Polkadot Plumbers Ltd a registered business?
POLKADOT PLUMBERS LTD is a registered business on Companies House (company number 11780046), incorporated 22 Jan 2019, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.
What does Polkadot Plumbers Ltd specialise in?
Polkadot Plumbers Ltd lists specialist services including Gas Fires, Central heating systems (installation and servicing), Immersion Heaters, Wet rooms, Electric Showers, Bathroom tiling. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
What areas does Polkadot Plumbers Ltd cover?
They state on their own website that they cover London. This is the business's own statement on their website, not something we have independently checked. Confirm they cover your postcode before booking.
When was Polkadot Plumbers Ltd's website registered?
Polkadot Plumbers Ltd's website has been online since 2019, according to the public domain registry. This dates the website, not necessarily when the business began trading.
These describe public evidence MyTrustedTraders held at the stated dates. They are not independent awards, they cannot be bought, and they do not change this business's Trust Score or search position. How milestones are measured