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Rated 1 out of 5 stars

I was charged a hefty fee (more than £200) when no actual work was carried out. When I inquired about this, the engineer was very rude and put me under pressure to just pay up. This 'company' is cle... See more

Rated 1 out of 5 stars

I was told over the phone that the call-out fee was £60 and that any additional work would be quoted before proceeding. However, when the plumber arrived, he just tightened a few bolts, which took les... See more

Rated 4 out of 5 stars

Very good service from Darryl. I feel he went above and beyond when dealing with our clogged sink issues. We didn’t get the whole thing fixed in one visit but he got things working enough for us to us... See more

Rated 1 out of 5 stars

They are prompt and professional but take advantage of their 'emergency' tag by wildly overcharging.I called them out at 4 pm after returning from a long flight to fix my boiler they arrived as schedu... See more

Company details

  1. Property Maintenance
  2. Gas Engineer
  3. Plumber

Written by the company

DSM Plumbing is a customer driven company with plumbers and heating engineers that prioritises the customer at all costs. We are proud to have served thousands of homes since 2019 with emergency call outs, general works and installations. Covering London, we aim to arrive to all jobs within the hour of calling to resolve matters without the hassle! Services we offer: Plumbing and heating related work and emergency call outs. Boiler repairs and installations Gas certificates Bathroom refurbishments


Contact info

2.0

Poor

TrustScore 2 out of 5

40 reviews

5-star
4-star
3-star
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1-star

Hasn’t replied to negative reviews

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Rated 1 out of 5 stars

A scam

This is not a legitimate company! Be careful!
They will charge insane amounts without prior quote or agreement and demand payment on the spot through a payment terminal.

3 November 2025
Unprompted review
Rated 1 out of 5 stars

SCAM

I was charged a hefty fee (more than £200) when no actual work was carried out. When I inquired about this, the engineer was very rude and put me under pressure to just pay up. This 'company' is clearly a scam, sending around thieves in plumber uniform. Unless you enjoy large surprise fees and threatening interactions: avoid avoid avoid!

3 November 2025
Unprompted review
Rated 1 out of 5 stars

Rogue traders

I was told over the phone that the call-out fee was £60 and that any additional work would be quoted before proceeding. However, when the plumber arrived, he just tightened a few bolts, which took less than two minutes, and then charged me £250. Even though he never gave me a quote and I never agreed for the work to be carried out. This feels completely dishonest and unethical. When I challenged him on this he became very insistent and rude and demanded that I pay him on the spot. I also realised that they attended as part of an ‘emergency call out’ which I wasn’t aware of at all (the issue was not an emergency). Please avoid this company at all cost! This is not a legitimate company. After having read other reviews it appears this is their modus operandi. They clearly intend to scam people.

3 November 2025
Unprompted review
Rated 4 out of 5 stars

Very good service from Darryl

Very good service from Darryl. I feel he went above and beyond when dealing with our clogged sink issues. We didn’t get the whole thing fixed in one visit but he got things working enough for us to use the sink carefully. Hopefully he can resolve the issue when he returns to work on it more. Courteous, friendly and very concerned about making a mess.

22 August 2025
Unprompted review
Rated 1 out of 5 stars

This was one of the worst services I've…

This was one of the worst services I've ever had and I truly feel I was scammed. I explained very clearly the issue with my toilet - that sometimes when I flushed it would leak and other times it wouldn't. I explained I had the modern bathrooms where the toilet was stuck to the walls and in order to get access they would need to go in from the worktop and asked if they were able to put it back the way it was and the guy on the phone said yes they do loads of these jobs. This was a lie. The plumber came 30 minutes late, came in with the worst attitude, and then flushed my toilet 5 times and expected payment. There was no solution, and I had to get another plumber and pay once again to get the issues fixed. They are scammers.

4 June 2025
Unprompted review
Rated 1 out of 5 stars

Avoid DSM Plumbing

Avoid DSM Plumbing – Unprofessional and Overpriced

I had a terrible experience with DSM Plumbing. Their pricing is unclear, and they overcharge for even the simplest interactions. You may find yourself being billed just for speaking with them!

The engineer, Shannan, was extremely rude and unprofessional. Instead of providing clear information upfront, they hit you with unexpected charges. If you question the charges, they threaten to forward your details to debt recovery agencies.

This was the worst service experience I have ever had, and I strongly advise others to stay away. Be very cautious when dealing with them. I would never recommend DSM Plumbing to anyone.

15 March 2025
Unprompted review
Rated 1 out of 5 stars

Good service but took advantage in the price

called them because I had a leak and the boiler shut-down. On the phone they quoted me 95gbp for the call on-site and they came in 90min. Service was good however they charged an extra 200gbp for 1 hour labour plus materials, put VAT on top and you get the picture. Be sure to be specifc before hand of the all the costs breakdown.

7 March 2025
Unprompted review
Rated 1 out of 5 stars

I called them about my hot water on…

I called them about my hot water on Friday morning. The engineer came at 8pm. He did not check the boiler but just said that, the heatplate exchanger need to be replaced. Instead of giving a thorough diagnosis, he demanded £150 from me with seriousness. I mistakingly handed him £160 abd this man took the money. The next day, I sent them a message about the extra £10 and there was no response. Only for me to receive another message to pay £384 for the parts and labour. I found another plumber who did the job with £220 charge for labour and parts. They are theives in a plumber uniform.

15 November 2024
Unprompted review
Rated 5 out of 5 stars

Great company to deal with.

Great company to deal with.
Quote they gave was the price I paid.
Easy fast and reliable.
Would definitely recommend them to all friends family and community.
Thanks again

14 November 2024
Unprompted review
Rated 1 out of 5 stars

Beware of Overcharge

They are prompt and professional but take advantage of their 'emergency' tag by wildly overcharging.I called them out at 4 pm after returning from a long flight to fix my boiler they arrived as scheduled fixed a minor issue caused by blown fuses in less than an hour and proceeded to charge me £625.

5 November 2024
Unprompted review
Rated 1 out of 5 stars

Ridiculously expensive

DO NOT USE THIS COMPANY! Absolutely rip off. Charged £607 for effectively 10 mins (some tape to put the overflow back in place) and using a plunger

23 August 2024
Unprompted review
Rated 1 out of 5 stars

They jack up the prices and no warranty

They jack up the prices, will try to replace parts citing the existing ones as faulty. And although they claim warranty, but its of no use as they refused to take warranty either for service or parts. They changed multiple parts for my boiler and it has the same issue again after 5 months. And they refuse the warranty for it. pathetic service, avoid them at any cost.

13 August 2024
Unprompted review
Rated 1 out of 5 stars

I'd give a zero if I could

This company clearly did not know how to service our well but pretended to, jacked up the price quoted, achieved zero water improvement, held up a renovation, tried to sell us an expensive water system, and then ignored outreach following. Surprised so many of these online reviews are good.

4 May 2024
Unprompted review
DSM Plumbing logo

Reply from DSM Plumbing

Hi Deana, I understand you seem to be frustrated with a recent experienced you’ve had recently, but I believe you’ve left a review to the wrong company as we do not do renovations and works related to wells.

We do have a competitor with a similar business name to ours and I am under the impression you have found us by accident instead when leaving a review.

I hope you understand and are able to remove the review based on this as it does damage us a lot and we do take a lot of pride in our reviews.

If you wish to verify that we are not the company, you should be able to find a link to our website and find we are not the company that attended your property. We are based in West London.

If you have any questions, you can email us at info@dsmplumbingltd.com

Rated 5 out of 5 stars

Great job by Joey

Great job by Joey! Prompt service for replacement of main water valve. Price was very reasonable and service was very friendly and professional 😊

3 April 2024
Unprompted review
Rated 5 out of 5 stars

Highly recommend

Responded immediately, came when he said he would and did a great job for me - very happy with his work, excellent customer and rates
Very respectful of my home
highly recommend this company to anyone

24 January 2024
Unprompted review
Rated 5 out of 5 stars

DSM Plumbing 5 stars

Daryl and his crew showed up on time and have a great work ethic. They responded quickly to my request, worked hard and resolved the problem that I had with my well. They were pleasant and cleaned up the excavation very well. I have no hesitation recommending DSM Plumbing to anyone requiring their type of service

9 August 2023
Unprompted review
Rated 5 out of 5 stars

Faulty pipes

I was in need of assistance as I had a leakage in my pipes I was sent out someone within the hour of calling. The customer service was good, and the work was done to a great level I was highly recommended calling if you’re in need of help

7 October 2022
Unprompted review
Rated 5 out of 5 stars

Great service

Great service from DSM plumbing. I am very happy with the service they provided. The gentleman on the phone was very polite. The plumber Shaban was a professional and explained what he will be doing.

17 October 2022
Unprompted review
Rated 5 out of 5 stars

Professional

Professional, polite, trustworthy, time efficient and very friendly

4 October 2022
Unprompted review
DSM Plumbing logo

Reply from DSM Plumbing

Hey James,

Thanks for your review! We appreciate your business and look forward to serving you again.

DSM Plumbing,

Rated 5 out of 5 stars

Best company I have used

Best company I have used. Great service and very friendly plumber

4 October 2022
Unprompted review
DSM Plumbing logo

Reply from DSM Plumbing

Hey Mark,

Thank you for the review! We really appreciate it. Please call us again if you need any plumbing services.

DSM Plumbing,

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