“The communication I had with GB Plumbing was first class.” · Checkatrade, 23 Oct 2025
“Arash was incredibly responsive from the start” · Checkatrade, 1 Oct 2025
“Communication was also top-notch” · Checkatrade, 17 Mar 2025
Public evidence profile
GB Plumbing Experts
Emergency callout
Central Heating Repair, Plumber
Companies House
Active incorporated business
No Trust Score yet
- Rated 5.0 from 98 reviews
- 14 reviews in the last 12 months
Based on rating, review volume, independent sources and credential evidence. Evidence context, not a guarantee of workmanship.
Trust at a glance
2 checksWhat we can verify about GB Plumbing Experts
Each card sums up one thing we can check from public sources. Open it for the full detail and the named source. This is evidence context, not a guarantee.
Emergency calloutCentral Heating Repair, PlumberSee detail →Companies HouseActive incorporated businessSee detail →
See the full verification checklist for GB Plumbing Experts →From Checkatrade
Emergency callout
Lists emergency callout on Checkatrade for these jobs:
- Central Heating Repair
- Plumber
This is how they list themselves on Checkatrade. Call ahead to confirm they can come out for your job right now before you rely on it.
From customer reviews
What customers consistently say
Recurring themes from 97 customer reviews on Checkatrade.
“Arash was on time” · Checkatrade, 2 Oct 2025
“Arrived on time” · Checkatrade, 16 Sept 2025
Companies House registration
ActiveActive incorporated business
GB Plumbing Experts is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.
Legal nameGB Plumbing Experts
Company number15032785
Incorporated
Registered activityPlumbing & heating installation
Run by1 director (longest-serving director appointed in 2023)
Official checkOn the public register
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 3 years on the register also points to an established business rather than a brand-new one.
Reviews · public evidence
What customers say
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
Often reviewed for
Customers often mention
Where these reviews are published
- Checkatrade98 reviews · 5.0 avg
Highlights
“Arash was really friendly, professional and efficient from start to finish. He installed my new boiler, replaced five radiators and fitted the Hive thermostat, and got everything done smoothly. He explained things clearly, was easy to deal with”
“GB plumbing are brilliant-I would use them again in a heartbeat.”
“Professional and excellent service Work done on time Trustworthy and definitely recommend them”
Detailed reviews
These are the individual reviews we hold for GB Plumbing Experts, including the highlights above. The 98 headline total is the review volume reported across public review sources.
Verified by Checkatrade
I needed a new boiler and was recommended to GB Plumbing via Worcester Bosch as an accredited installer. The communication I had with GB Plumbing was first class. They surveyed the job and gave me a very prompt quote, which was competitive. They installed the boiler and took pride in their job. They put down carpet protection before the job. Everything was done as they said, and they were knowledgeable about the subject. I couldn't fault them in any aspect of the work. 5 stars!
Verified by Checkatrade
Excellent service. Arrived within 30 mins of callout, polite, friendly very efficient and capable. Problem solved in super quick time and unbeatable price. Would highly recommend!
Verified by CheckatradeGreat job! Radiator installation
Excellent! Arash was on time, did a great job, cleaned up and was polite and helpful. Definitely recommend him.
Verified by Checkatrade
Arash was incredibly responsive from the start and demonstrated a high level of professionalism throughout. He took time to thoroughly investigate the fault before beginning any repairs, ensuring root cause was properly identified. Once repair was completed, he offered help tips for correct usage going forward. His quote was very reasonable and completely transparent. Highly recommend for anyone looking for reliable and knowledgeable plumbing services.
Arash first visited our business earlier this year to recommend a larger unvented water cylinder to replace our 120L one. Several months later, we got back in touch and requested a 300L cylinder is installed. Excellent communication throughout the process. Arrived on time and completed the job to a very high standard. Highly recommended.
Read the other 10 detailed reviews on this pageShow fewer reviews
Verified by Checkatrade
Great experience, Arash was polite, quick to respond and efficient. Arash was flexible around my work, helpfully explained everything to me and did a really professional job to resolve our leaking shower tray.
Verified by CheckatradeSwapped a radiator, quickly and efficiently - I recommend!
Excellent job! Arash changed a radiator for me. He was efficient and tidy: arrived when he said he would, got the job done, cleaned up thoroughly afterwards. Great job! I recommend him!
Professional service and advice~ Will surely recommend to my friends~ Thanks Arash~!!
Verified by Checkatrade
Arash was very efficient, very prompt to respond with a quote to my query, communicative & arrived on time the next day! Work completed to a high standard and overall very pleased
Replaced our immersion heater element.
Our immersion heater went out and Arash was able to come out almost immediately to replace it. He was quick to respond, communication was easy and responsive and his price was very affordable. I'll happily call him out for any future plumbing issues.
Verified by Checkatrade
Arash responded very promptly, came out for a call out to diagnose the issue, identified it and repaired it within an hour. He was very transparent with his fees which were entirely reasonable. He was very very friendly and communicated what was going on at all points. You can tell he takes great pride in his work and in its speed and efficiency. Highly recommended!! Thanks
Verified by Checkatrade
Good communication from the beginning. Arrash came out to ensure measurements were ok for the cylinder of choice. We agreed a date on which he turned up promptly and carried out the work. Price was very competitive and the work was of a great neat standard. Would definitely recommend.
Verified by Checkatrade
They arrived in time, did the work properly and they were very friendly.
Verified by CheckatradeFull replumb of Victorian detached property and installing 5 bathrooms
Arash and Adel were a dream team, taking on the massive project of a replumb / new heating of a huge property that had suffered years of neglect and 5 new bathrooms. They were outstanding, gave us wonderful advice, so experienced, I cannot recommend them highly enough. I project managed the different contractors myself and they were our most trusted contractors , always giving it 100% and helping us manage some difficult situations. A pleasure to deal with and see, we really valued them. Thank you so much for your help in making our house warm and cosy with lovely bathrooms. Ever so grateful.
Verified by Checkatrade
Arash completed multiple tasks in our house including a gas pipe fitting into a wall, replacing the toilet, and setting up a smart thermostat for combi boiler. He was very professional, friendly and this made the process smooth. Whatever you need, he gets it done. We highly recommend him!
Local context
Rated 5.0, above the local average for plumbers in London
Across 1325 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.
Sources
3 named public sourcesWhere this information comes from
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.
Review sources
Checkatrade (opens in new tab)Thomson Local
Business and public registers
Check dates vary by source. Where we hold a date, the check shows it.
About
Central heating in London.
Services they list
Bathroom & Kitchen PlumbingBlocked BathsBlocked SinksBlocked ToiletsGas Boiler InstallationGas Boiler Servicing / RepairGas Central Heating InstallationGas Central Heating Servicing / RepairGas Cooker InstallationGas Safety Checks - CP12General PlumbingPipe Fitter
Listed on public sources or the business's own website; check directly that they cover your job before you book.
Areas served
London
The areas they list covering on a public directory; confirm they cover your address before you book.
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.
Check the WaterSafe registerAgree 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 GB Plumbing Experts before you contact them.
Run Cowboy Checker →Independent checks
About this business
Recently reviewed14 reviews in the last 12 months.
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 tradingIndependent sources agree they've been operating since at least 2022. That's 4 years, confirmed across 2 separate sources.
First public review2022Company registered2023
Good to know
Common questions about GB Plumbing Experts
Is GB Plumbing Experts a legitimate business?
GB Plumbing Experts has 98 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 GB Plumbing Experts?
GB Plumbing Experts has 98 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 GB Plumbing Experts' reviews are genuine?
GB Plumbing Experts' 98 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.
Has GB Plumbing Experts had recent public reviews?
GB Plumbing Experts has 14 public reviews dated within the last 12 months. That shows their review history includes recent feedback; it does not prove current availability, so confirm capacity before hiring.
Is GB Plumbing Experts a registered business?
GB Plumbing Experts is a registered business on Companies House (company number 15032785), incorporated 27 Jul 2023, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.
What does GB Plumbing Experts specialise in?
GB Plumbing Experts lists specialist services including Bathroom & Kitchen Plumbing, Blocked Baths, Blocked Sinks, Blocked Toilets, Gas Boiler Installation, Gas Boiler Servicing / Repair. If your job is one of these, look for it in their listed services or ask them to confirm for your project.
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