Endorsed by Which?

Drain Flow Services Ltd

5.0

62 Reviews

Opening Hours
Today - 24 hours
  • Monday - 24 hours
  • Tuesday - 24 hours
  • Wednesday - 24 hours
  • Thursday - 24 hours
  • Friday - 24 hours
  • Saturday - 24 hours
  • Sunday - 24 hours

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check

About

Drain Flow Services is a family run business based in Watford. With more than 20 years industry experience we have the capability to serve all your drainage needs.

We offer:

- Competitively priced CCTV servicing

- Blockage clearances

- High pressure water jetting

- Drain root removal

- Excavation and repair

- Relining and patch lining.

We solve all drainage issues with the latest technology- blocked toilets, sinks, showers, baths, aco drains and gulleys will be cleared promptly and efficiently.

Fast, professional and reliable, call us 24 hours a day, 365 days a year - we always put our customers first.

What we do

  • Drain clearance contractors

    • CCTV drain surveys
    • Drain and sewer services
    • Drain installation
    • Emergency drain clearance service
  • More Services

    • high pressure water jetting
    • root
    • excavation
    • relining
    • drainage

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

5.0
62 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
Sort by
Excellent service
Customer Service
Quality
Value
After speaking to Alex on the phone, he came to my house at the agreed time. He diagnosed the drainage problem and fixed it quickly and efficiently. He was friendly and professional at all times. Highly recommended.
Customer in Hertfordshire Posted on 20/11/2025 , work completed 18/11/2025
Friendly, efficient, and thorough
Customer Service
Quality
Value
I contacted Alex via the Which? Trusted Traders website for a quote to fix an elderly neighbour’s very slow-draining toilet. He was very helpful explaining possible causes and offered a step by step approach to diagnose the problem, bearing in mind my neighbour’s limited budget and worries about costs. Alex proposed, for a fixed fee, to jet the drain towards the main sewer and also to jet the drain back towards the toilet where they were accessible from just outside the house. He offered to attend the following afternoon. On site both he and his assistant were friendly, efficient, and very thorough in carrying out their work. They made sure that the drain from the house to the main local authority drain was flowing adequately and similarly checked the drain back to the toilet, which was then flushing well. After discussions and explanations we agreed that was all that was needed for now and that if there were any concerns arising in the future, further investigations using cameras could be performed at extra cost. I am very pleased with their work and will have no hesitation in using them myself for future drain work and I highly recommend Drain Flow Services Ltd to everyone.
Customer in Hertfordshire Posted on 07/11/2025 , work completed 04/11/2025
DRAIN OVERFLOW CLEARANCE
Customer Service
Quality
Value
Excellent Service. Noted they were 'Which Trusted Traders' so phoned them as I had a drain overflow. Left a message for them to phone me and they made contact by phone within 15 minutes. The problem was not immediately urgent so we mutually agreed they would call next day. They quoted me their price which was fully acceptable. They arrived on time and promptly dealt with the problem. Alex, who I believe is a director of this firm and his colleague were very pleasant and helpful - even explained the working of the drain filter. Their vehicle was modern and fully equipped. They were obviously very experienced. I am writing this review as I believe this business deserves recommendation
Customer in Hertfordshire Posted on 06/11/2025 , work completed 05/11/2025
Thorough expert work
Customer Service
Quality
Value
Alex very patiently diagnosed and solved our drainage issue that was leading to some internal damp. He was also very patient arranging the work with tenants and communicating with me as I couldn’t be on site. Highly recommended
Customer in Berkshire Posted on 04/11/2025 , work completed 04/11/2025
Excellent Straightforward Service
Customer Service
Quality
Value
I have used this company many times for a recurring drain issue. Alex is a very efficient and friendly guy and I never have any complaints at all. He is transparent and explains just what's going on, he comes when he says he will and does a fast and effective job. His services are also very reasonable. Thanks Alex!
Customer in Greater London Posted on 10/10/2025 , work completed 01/10/2025
Excellent, reliable and courteous service
Customer Service
Quality
Value
I’ve used this company twice (many years apart) and both times Alex has come round promptly and cleared the blockage in my drains. The service is outstanding and work is performed to a high standard and very courteously. The charge was very reasonable too. I have no hesitation in recommending this company
Customer in Greater London Posted on 13/03/2025 , work completed 13/03/2025
Drain Blockage Removal
Customer Service
Quality
Value
Alex turned up at the appointed hour ( within 2hous of a call) jetted the drain and cleared the blockage. Very professional service. He quoted a sum over the phone and charged what had been quoted with no hidden extras, which is refreshing as others quoted by the half hour and if machines were needed then there would be additional charges so the oral quote was just a starting point.
Customer in Greater London Posted on 10/11/2024 , work completed 07/11/2024
Great Job on the Drains
Customer Service
Quality
Value
Alex and his team always arrive on time and finished the job quickly. They did a great job on my blocked underground drains and everything was working perfectly once the job was completed. Great friendly and reliable service. Thanks all.
Customer in Hertfordshire Posted on 23/10/2024 , work completed 23/10/2024
Great service, efficiently provided
Customer Service
Quality
Value
Alex and colleague jetted a rainwater pipe to clear a blockage, but it was clear the pipe needed replacing. They undertook that work later in the week, working to a high standard and leaving the area they worked looking as if they hadn't been there. Great service delivered as they promised. Thanks!
Customer in Hertfordshire Posted on 14/09/2024 , work completed 06/09/2024
Fantastic professional service
Customer Service
Quality
Value
Brilliant service. Fast response and excellent work. Highly recommended. Left the area clean and tidy. Really great work!
Customer in Hertfordshire Posted on 10/09/2024 , work completed 10/09/2024
Soak away
Customer Service
Quality
Value
Massive thanks, came and fitted a new soak away system. Fast and reliable and left the area clean and tidy, would highly recommend.
Customer in Hertfordshire Posted on 26/05/2024 , work completed 24/05/2024
Reliable, Considerate and Efficient
Customer Service
Quality
Value
Came to clear blocked gulley in patio. Alex arrived at the agreed time. Did the job swiftly and was careful not to track mud into the flat. Gave me good advice about getting other tenants to contribute to the bill. Invoice was exactly as quoted. Would definitely use again.
Customer in Greater London Posted on 12/03/2024 , work completed 29/02/2024
Drain blockage
Customer Service
Quality
Value
Alex and John came round the day after I contacted them to sort out a blocked drain. They did an excellent job. My drains are over 100 years old and haven't been flushed since I moved here over 30 years ago. The drainpipe coming down from the roof was solid and I was concerned that I would need new pipework, but fortunately Alex and John used jets to free the drain pipe and the drains. They were friendly, honest and did a thorough job in less than an hour - I couldn't recommend them more highly.
Customer in Hertfordshire Posted on 29/02/2024 , work completed 29/02/2024
Overflowing Drain
Customer Service
Quality
Value
The external drain collecting the outflow from my kitchen and that of a neighbour was overflowing. I called Drain Flow Services as we previously had tree roots breaking into the drains and obstructing them. Alex visited the next day and cleared the blockage. A CCTV inspection of the pipes confirmed that they were intact and unaffected by roots. The team were efficient and friendly. The work was explained and the video of the pipes was played back to me. The price was clearly explained as was the cost of the CCTV inspection, which was done at my request. I had a problem with rattling pipes in my bathroom, which Alex looked at free of charge and identified as being due to a u-bend drying out.
Customer in Greater London Posted on 16/11/2023 , work completed 13/11/2023
Drainflow Services
Customer Service
Quality
Value
I would 100% recommend Alex at Drainflow Services. Yesterday he changed a soakaway from draining into my garden to drain into the main sewer. This is not the first time Alex has put in new sewer pipes and drains for me, he also did sewer works for two new toilets earlier this year. On both occasions I was really pleased with how neat and tidy the jobs were done. He was really precise cutting through the existing concrete, only channelling out the absolute necessary space for the work to be done. The concrete that was laid afterwards when the new pipes were in had been done perfectly. I didn't have to wait long for either the quote or the work to be done. The quote was better than expected on both occasions. The clearing up after the work was excellent. Everything was left neat and tidy, the left over rubble was bagged and stacked aside safely and collected this morning. There was no extra clearing or cleaning for me to do. Alex is a very pleasant cheerful man and just gets on with the job in hand. I wouldn't hesitate to recommend Alex to anyone in the future.
Customer in Hertfordshire Posted on 30/08/2023 , work completed 29/08/2023
Outstanding service and quality of work
Customer Service
Quality
Value
Can’t thank Alex and John for all their hard work sorting out our completely collapsed huge drainage system and rainwater pipes. Your work was faultless, seamless and you are both so lovely to have around. My builders are sooo impressed with you both and want to work further with you. Your quote is fair, detailed and your level of expertise, tidiness and service - second to none. Thank you for being so kind and helpful and squashing all my fears. Can’t recommend more highly
Customer in Greater London Posted on 13/07/2023 , work completed 07/07/2023
Great Service, Cleared Drain Quickly and Efficiently
Customer Service
Quality
Value
Having left a message late in the evening, Alex returned my call and was at the property the following day and successfully cleared the blocked drain. He was very polite, helpful and kindly updated me once he had completed the work. I would definitely recommend Drain Flow Services Ltd, as they are extremely professional, efficient and respond to problems very quickly.
Customer in Greater London Posted on 03/06/2023 , work completed 31/05/2023
Drains CCTV & Valve
Customer Service
Quality
Value
Alex and his colleague were excellent, they turned up as expected to camera my drains and were thorough in their work with a genuine desire to resolve the issue for me. We agreed on the remedial work, their return visit was again as expected and they efficiently supplied and fitted a drain valve. Polite and professional, I would recommend them.
Customer in Surrey Posted on 25/03/2023 , work completed 10/03/2023
Cleared drain quickly & efficiently
Customer Service
Quality
Value
Service was great. Alex & colleague came on time, with a friendly smile. He used specialist equipment to flush & clear the outside drain. Didn’t take long & I would definitely use his services again.
Customer in Hertfordshire Posted on 31/01/2023 , work completed 31/01/2023
Efficient and tidy
Customer Service
Quality
Value
Alex came to look at my blocked gully which I thought needed repair. He cleaned it, then put a camera down and showed me that there was cement at the bottom of the gully, and leaking joints, as well as the broken drain that I could see. He quoted me a price, and did the job over two days, well within the time he said it would take. Everything was finished to a high standard and there was no mess, although he had to dig a trench. Rubble was taken away and I now have peace of mind. Alex is efficient and courteous, helpful without being pushy, and I have no hesitation in recommending him.
Lesley in Greater London Posted on 25/11/2022 , work completed 23/11/2022
Friendly, helpful and reliable
Customer Service
Quality
Value
Alex came and cleared our blocked drains. Quick turnaround from getting in contact. Good price and helpful advice about managing issues and likely costs of further remedial work if required in the future. No qualms about recommending to others.
Customer in Hertfordshire Posted on 28/09/2022 , work completed 28/09/2022
Great service and customer care
Customer Service
Quality
Value
I called Alex to unblock a drain at my elderly mother's house. He came the following day and used a high pressure jet to unblock it, also analysing what the likely problem is (roots in drain). He and his coworker were polite and efficient. Fair price.
Customer in Brighton and Hove Posted on 18/06/2022 , work completed 14/06/2022
Great service
Customer Service
Quality
Value
I cannot recommend Alex and his company highly enough. Came the following day, resolved the issue with minimal fuss and no mess. Would highly recommend.
Customer in Greater London Posted on 13/05/2022 , work completed 12/05/2022
Great Job!
Customer Service
Quality
Value
Really pleased with the service received. Mine wasn’t a straightforward problem due to access but Alex and his colleague did everything they could and went out of their way to resolve the issue and were successful in unblocking the pipes and drain. Quick to respond, efficient and professional. Would definitely call again in the future.
Customer in Hertfordshire Posted on 01/12/2021 , work completed 24/11/2021
Excellent service
Customer Service
Quality
Value
Called at 10am, problem with a blocked drain solved by 2pm. Excellent team - polite, friendly and efficient.
Customer in Hertfordshire Posted on 11/11/2021 , work completed 11/11/2021