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.
What we can verify about Plumbtastic (Cornwall) Ltd
2 checks
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.
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
58 reviews in public evidenceMost recent review
Customers often mention
Friendly & politeMentioned in 44% of reviews we've read
Fast & efficientMentioned in 36% of reviews we've read
ProfessionalMentioned in 36% of reviews we've read
Tidy & cleanMentioned in 32% of reviews we've read
Where these reviews are published
Which? Trusted Traders58 reviews · 5.0 avg
Detailed reviews
These are the individual reviews we hold for Plumbtastic (Cornwall) Ltd, including the highlights above. The 58 headline total is the review volume reported across public review sources.
Customer in Cornwall
Customer recommends this business
New Combi Boiler Installed
We recently had a Combi Central Heating Boiler installed by PLUMBTASTIC of Redruth and couldn’t be happier with the service . From the initial on site consultation with Keith Humphries the company founder (and co director with his wife Michelle), to the final installation, the entire process was smooth, professional, and stress-free. Keith recommended two high quality aesthetically pleasing, efficient boilers for our needs. He took the time to explain the options available. We opted for a Worcester Bosch 4000, having had that brand for the last circa 15 years. Plumbtastic are Worcester Bosch approved installers so we now have a 10 year manufacturer guarantee for breakdowns and repairs. The installation was carried out to a very high standard. The engineer was punctual, knowledgeable, and incredibly respectful of our home. Everything was left clean and tidy, and they made sure we understood how to operate the system before they left. What really stood out was their attention to detail and commitment to customer satisfaction. The new boiler is working perfectly, and we’ve already noticed a big improvement in water heating efficiency. We are looking forward to switching on the central heating I would highly recommend Plumbtastic to anyone considering a boiler installation. A trustworthy, reliable company that clearly takes pride in their work. Thank you for a job well done!
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Cornwall
Customer recommends this business
installation of new boiler
Excellent job. Very clean, very efficient. Staff were polite and very helpful. Fitters were very efficient and helpful. Excellent value.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Helen in Cornwall
Customer recommends this business
Two boilers installed by Plumbtastic
We had 2 new boilers installed recently and a couple of radiators replaced. One of the boilers was in the house and the other one in holiday accommodation. The quotes from Plumbtastic were competitive, the installations were well done and the overall service was very professional, but also friendly and cheerful. Everything was clearly explained and we've taken a service agreement with this firm to cover both boilers. I have already recommended Plumbtastic to a friend.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Elly in Cornwall
Customer recommends this business
Brilliant team has looked after us so well, for over 10 years
Plumbtastic has been looking after us so well, for over 10 years. They kept our old boiler running for as long as it would go and when it was finally time for a new one, they did a brilliant job of advising and then installing a new one. Delighted with the new boiler (and that they kept the old one going so we could save up for the new one!). We're so happy with all work, servicing and care. Signed up to spread the cost of the annual service with a monthly payment, which works great. I highly recommend Plumbtastic, their customer service, care and workmanship is top notch.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Mark in Cornwall
Customer recommends this business
Excellent & reliable
Very please with our new boiler, installation went without a hitch, the guys were very friendly. Very tidy when working and considerate too. We would recommend Plumbtastic to everyone who needs any plumbing work.
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
Mark in Cornwall
Customer recommends this business
reliable plumbers
I have used Plumbtastic many times from a leaking tap to having a new boiler fitted which I had done in December. They showed up on time work carried out to a very good standard and at a good price. I would recommend them for all types of plumbing jobs in Cornwall.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Steve in Cornwall
Customer recommends this business
Fantastic job
I had a boiler and all new radiators installed. Great work would recommend to anyone looking for a fast, tidy job and excellent workmanship.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Richard in Cornwall
Customer recommends this business
Installation of Bosch Worcester gas boiler
Plumbtastic removed old boiler and fitted the new one in a day and a half. When asked to quote they arrived at the agreed time (wearing face mask) and talked through the options, checked the gas supply and access to flue. We agreed the boiler spec and their quote was competitive and the work could be undertaken in my time frame. A week before the work was to start they asked if they could delay by one week as an elderly lady had a complete boiler breakdown (ours was still working). I agreed to that polite request. When they arrived on the new date they were punctual, wore masks, were clean and tidy. After installation they explained operation and that I could request an inspection of the work by the new Gas safety authority. They were easy to contact throughout the process and friendly. I recommend them without hesitation for boiler installation.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Cornwall
Customer recommends this business
New Boiler Installation
I invited 'Plumbtastic' to remove an old boiler and install a new one in a different position. Keith came around and provided a professional quote with additional material for the boiler that we were asking for. The installation was a week late for reasons that were beyond Keith's control but he kept communicating with me and giving me an update. The installation was carried out by Adam, who I can safely say is the most diligent, personable and professional tradesman that I have had at my house. He was knowledgeable about his craft and the product he was installing, was pedantic about maintaining a clean working environment and protecting my house from any accidental damage. The best quality was his ability to problem solve, on encountering any unforeseen issues he would come up with a couple of courses of action including pros and cons and ask me how I would like the work done. Completed on time to a very high standard, earned a loyal customer. Plumbtastic is firmly at the top of my list for any plumbing problems, we have already invited them back to move a radiator.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Barry in Cornwall
Customer recommends this business
Various work carried out for us over the last few years by a fantastic team.
We had a new bath/shower room fitted also new tap and new boiler (boiler fitted 2019) over the last few years all done to a very high standard by a fantastic team. We were kept appraised of all aspects of the work making sure we were completely satisfied with work undertaken. They were a pleasure to have in our home both friendly and helpful, any questions we had were answered both patiently and politely. Keith and his team are now our regular plumbers. We always say Fantastic Plumbtastic.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Elaine
Customer recommends this business
Replacement of heating boiler
Plumbtastic (Cornwall) Ltd replaced our old oil boiler with a new Worcester Bosch combi (LPG) system in September 2020. Adam, the heating engineer, explained the different systems and options, Once we decided which option to take, we received a clear and detailed breakdown of the costs and time involved. Very professional team - polite and clean - Excellent service all round.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
M Roberts in Cornwall
Customer recommends this business
Appreciated Thanks
My appreciated thanks to Keith and Adam at Plumbtastic for a definite fantastic job Adam did in replacing our daughter’s defunct outdoor oil boiler with a new Worcester Bosch combi system. High standard of workmanship throughout and most pleasant, polite, helpful and professional in the carrying out of the daily tasks. First time of using Plumbtastic and most impressed with the all-round service provided - highly recommend to anyone in West or Mid Cornwall needing a plumbing/heating engineer.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Cornwall
Customer recommends this business
Installation of new boiler
Plumbtastic Cwll installed new Worcester Bosch boiler recently. Excellent service, well done Ash and apprentice ( Bayley ). Very professional team; polite, clean and quick! Thank you!
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Customer in Cornwall
Customer recommends this business
Fantastic service
Really quick response and fantastic customer service. I phoned them first thing in the morning and was told I would be seen on the same day. The Engineer came out when expected and was really helpful - he went above and beyond. My issue was fixed really quickly and efficiently and I was kept informed of what was happening throughout the whole process. I cannot rate this company highly enough.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Sheila Barrett
Customer recommends this business
Quick response and problem resolution
Prompt, reliable service. Good communications, a pleasure to deal with. Will definitely be recommending and will use again.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Lsjaboard
Customer recommends this business
Superb reliable service
What a reliable company! Someone to answer the phone in the office, they call back when they say they will, give credible advice and go the extra mile to help solve a problem. Excellent customer service.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
I Jones
Customer recommends this business
Highly recommended
We have used Plumbtastic for over 4 years and I can't rate Keith and his team highly enough. From the fitting a brand new central heating system, to annual landlord gas safety checks, to a quick fix on a kitchen tap, they have always been super reliable and give a top notch service. Keith and his office are great to communicate with and overall, I'm absolutely delighted to have found them.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Anne G
Customer recommends this business
Excellent service.
Plumbtastic did a great job for us installing a new Worcester Bosch external oil boiler, Easy Controller and Smart TRVs throughout the house. Keith's initial visit was helpful explaining the options available and he followed the visit promptly with further information about the new Easy Controller and a quotation. Steve and the team were friendly and helpful and always cleared up after they finished. They arrived on time and explained the process as they went along, sorting out any problems with the equipment very quickly. When there was a delay due to a faulty part they rang me with regular updates and it was soon resolved. I would definitely use them again and highly recommend them.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Fisher
Customer recommends this business
Highly recommended
Nice bunch of people and always top quality of work. I have used Keith and his team for years, they have replaced our boiler including moving it, plumbed in our cloakroom and utility. They are a trustworthy, professional company that always do a neat job.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Jonathan
Customer recommends this business
Rapid response and exceptional customer service
Plumbtastic responded very quickly to my call. They were friendly and helpful, investigating a boiler problem which had left us without central heating during an unusually cold spell. The engineer who called identified the source of the problem straight away and was able to start up the system within 5 minutes of arriving. He then showed me what I could do myself if the fault occurred again and advised me of some straight forward treatment to the system I could administer. He reassured me that my fear of having to buy a new boiler was not justified and urged me to call again if I had further difficulties. Following the advice given, the boiler has been working very efficiently since he left. It was refreshing to deal with a company keen to help me avoid future expense, by dispensing good quality advice. We have used this company several times and would strongly recommend them.
Work completed:
Scores listed by Which? Trusted Traders
Customer Service
5 / 5
Quality
5 / 5
Value
5 / 5
Local context
Rated 5.0, in line with the local average for plumbers in Redruth
Across 8 plumbers in Redruth, the typical rating is 5.0 out of 5. We compare against the same businesses a homeowner would find searching for this trade locally.
03
From customer reviews
What customers consistently say
Recurring themes from 25 customer reviews on Which? Trusted Traders.
Respectful and tidy in your home: “was pedantic about maintaining a clean working environment” · Which? Trusted Traders, 2 Apr 2021
Quality of the workQuoted from 3 reviews
“The installation was carried out to a very high standard.” · Which? Trusted Traders, 2 Aug 2025
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 16 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
13 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.
Bathroom
Bath
bathroom001.jpg
radiators005.jpg
Towel Rail
Boiler Showroom
bathroom011.jpg
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
8am–5pm
04
Sources
Where this information comes from
1 named public source
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.
05
About
Here at Plumbtastic we feel we have a high responsibility when undertaking all aspects of plumbing and heating to give the best quality of service when it comes to advising, fair pricing and installing. We strive to answer any questions relating to any of the services we provide and if unable to answer a question we will always try to find the answer or direct you to someone who can. We have a number of local merchants and trades linked with ourselves, this helps Plumbtastic maintain and keep our large local customer base to a high quality of service. We offer a range of renewable energy, heating and plumbing solutions to suit your property, budget, heat and power needs, however big or small. Our aim is to provide value for money, do the right job at the right price at a time to suit our customers and to be as helpful as we can. As a family run business we pride ourselves on offering a personal service. We look forward to speaking with you to discuss your needs.
Services they list
Oil fired heating equipmentCentral heating systems (installation and servicing)Emergency plumbing servicesUnvented cylinder installation and maintenanceBoiler installationBoiler repairBoiler servicingRadiators and central heatingUnderfloor heating
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.
Your own checks
What to check before you hire
Worth checking yourself
Their public evidence comes from a single source. Look them up on another site before deciding.
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 Plumbtastic (Cornwall) Ltd before you contact them.
Is Plumbtastic (Cornwall) Ltd a legitimate business?
Plumbtastic (Cornwall) Ltd has 58 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 Plumbtastic (Cornwall) Ltd?
Plumbtastic (Cornwall) Ltd has 58 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 Plumbtastic (Cornwall) Ltd's reviews are genuine?
Plumbtastic (Cornwall) Ltd's 58 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 Plumbtastic (Cornwall) Ltd qualified and accredited?
We hold 1 independently sourced credential for Plumbtastic (Cornwall) Ltd, including Which? Trusted Trader. Each is attributed to the body that issued it in the credentials section. For example, Which? Trusted Trader is Which? Trusted Trader: an endorsement from the consumer champion Which?, given to traders who pass its assessment process.
Is Plumbtastic (Cornwall) Ltd a registered business?
Plumbtastic (Cornwall) Ltd is a registered business on Companies House (company number 07203832), incorporated 25 Mar 2010, listed as active. This confirms the legal registration of the business, not evidence of workmanship or service quality.
Does Plumbtastic (Cornwall) Ltd guarantee their work?
They state on their own website that guarantees of up to 11 years. This is the business's own statement on their website, not something we have independently checked. Get the terms in writing before you agree to the job.
What does Plumbtastic (Cornwall) Ltd specialise in?
Plumbtastic (Cornwall) Ltd lists specialist services including Oil fired heating equipment, Central heating systems (installation and servicing), Emergency plumbing services, Unvented cylinder installation and maintenance, Boiler installation, Boiler repair. 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 Plumbtastic (Cornwall) Ltd cover?
They state on their own website that they cover Cornwall. This is the business's own statement on their website, not something we have independently checked. Confirm they cover your postcode before booking.
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
