Blocked drain in Welwyn? Get it unblocked FAST!
By choosing Happy Drains Welwyn , you can trust that you will be in the best hands. We are number one in Welwyn for clearing blocked drains. We offer great prices for all our Welwyn customers, especially our household customers, for whom we have a fixed price!
Be assured that in Welwyn, your business site will receive tremendous service at the best price. So why would you go anywhere else? Our expert team of 'pro' Welwyn engineers will deliver the best in class service the industry has to offer.
Customer in Stevenage
Unblocking of drains
The service was amazing, quick to turn up and the man didn't leave until he had sorted the problem. We would be recommending them to everyone.
Customer in Enfield
Excellent Service
Very prompt service. They were helpful and flexible on timings. Came next morning and were very reasonable, professional, and courteous. I would use and recommend again.
Customer in Chingford
Good service and fixed the problem.
Happy Drains did a great job, it was easy to book an appointment with them over the phone, their engineer got in touch direct he arrived on time and had the blocked drain fixed with no fuss. Also the price was really good and payment was made easy via the payment link/website. I would definitely recommend Happy Drains ?'? Justin
Customer in Sawbridgeworth
Outside drain cleared (domestic)
Very prompt response and came out within a matter of hours, did a great job, great communications, easy to pay and reasonable price. Would definitely recommend and use again.
Customer in Loughton
Blocked Drains
I had a blockage in my sinks. I called Happy Drains and they were able to arrange for one of their team to visit me that very same day. The team were very knowledgeable, identifying the issue straight away. They fixed the blockage very quickly. All in all a great service and would highly recommend.
Customer in Rickmansworth
Drain Blockage Clearance
Had a blocked drain. Engineer came out next day, and cleared block and did an exceptionally thorough job.
Customer in Rickmansworth
Blocked drain just before Christmas
Very friendly service, appointment obtained quickly and resolved our problem simply and effectively. Would definitely use again.
Customer in Finchley
Unblocked kitchen drain
Arrived same day, quickly unblocked drain and fixed price.
Customer in Watford
Good service & price
Called Happy Drains out to clear a very blocked drain that run up the drive into the house over 20mts . Very professional from the initial call through the job . Wayne arrived on time calling 30 minutes before as agreed . No messing about flushed out the drains and checked that all was flowing properly . Wayne was professional with a friendly manner and a good sense of humour . Importantly the price was very reasonable . Would recommend to anyone 5 ⭐️
Customer in Highbury
Reliable service for unblocking drains
Prompt service, work carried out with minimum fuss, at fair cost.
Customer in Mill Hill
Clearance of blocked sewage drains / pipes
Great company. Fantastic comms. Had someone out within an hour of calling. Honest pricing. All in all faultless. Thank you guys
Customer in Upper Holloway
Excellent company
Very efficient team, very polite, came early, did a great job!
Customer in Stoke Newington
External drain unblocking
Excellent, speedy service from a friendly, knowledgeable drainage engineer. Happy Drains will be my choice next time.
Customer in Chesham
Unblocking kitchen drain.
The blockage was quickly cleared, service was efficient and friendly.
Customer in Hampstead
Clearing a drain in our rear garden
Very good service, engineer called about 20 minutes before arrival, arrived on time, friendly nice guy, professional. Fixed problem quickly, price quoted was fixed, no additional charges no matter what. Happy!
Customer in Hampstead
Main drain was completely blocked
I called them in the morning. The person who answered was extremely nice, knowledgeable and helpful. An appointment was booked for that same afternoon. The engineer called 45mn before arriving and was right on time. He was very nice, polite and did a great job. They all made the costs very clear all along. My problem was solved, there no surprises with the price which was perfectly justified. I will definitely call them again if I have a problem again.
Customer in Amersham
Blocked toilet
Blocked toilet, cause of which was a blocked drain outside the house. Happy Drains fitted me in quickly and dealt with it fast and efficiently, for a very reasonable price. I will certainly use again if necessary.
Customer in Welwyn
Using jetting equipment / camera to clear / check blocked internal drain gully of grease build up
I found Happy Drains on Checkatrade and the whole process has been seamlessly smooth from start to finish I made contact through Checkatrade and got an email from Happy Drains straight away with a fixed fee Rachel from the office then called to book me in the next morning Wayne came around at 9am on the morning and called ahead. He was nice, polite, knowledgeable and a pleasure to deal with Within 30/40mins the problem was resolved and Wayne didn't leave until he'd made checks and was satisfied with his work I was emailed an invoice shortly after with easy payment options All very easy
Customer in Welwyn
Clearing home drain
Very pleased with the service provided. Harry was very knowledgable and quick to fix the problem. Would definitely recommend and use again.
Customer in Knebworth
Drain cleared
Turned up at stated time and carried out the work as they described. Left everything clean and tidy and back in working order
Customer in Knebworth
Blocked Drains cleared
They turned up within a couple of hours of me calling them out, and cleared my drains in no time. And offered some advice on how to prevent blockages in future.
Customer in Welwyn Garden City
Washing machine back flow caused by blocked drains
I am really grateful that the problem has been solved because of the excellent services provided by Happy Drains. The engineer came to my flat and tried their very best and efforts to find out what was going on and to solve the problem. Before that, I tried to contact two plumbers but the first plumber said he could not solve the problem and the second one was a "no-show" because there was no parking space in my building. The engineers of Happy Drains are really reliable. Highly recommend Happy Drains to everyone who encounters similar problems!
Customer in Hertford
Blocked toilet
Rang to request help and within a couple of hours Alex was unblocking my drains. Efficient, courteous and helpfully explaining how to ensure the problem doesn't arise again. Would definitely use this service again and would recommend to friends and family. Thank you for a fantastic service
Customer in St Albans
Kitchen waste gulley blocked.
Prompt answer on the phone, better quote, quoted for the job, not as many others do - x amount per half hour. Early warning message, arrived on time, friendly guy, Wayne. Did the job quickly, no fuss, tidied up.
Customer in Hatfield
Drain problem fixed
5 star experience. Identified the problem quickly with camera and cleared it with pressure hose - all within an hour. Excellent service and happy with the cost.
Customer in Hitchin
Blocked drains
Alex showed up to the house, had a quick look and knew what the issue was and how to proceed. He was quick with clearing out blockage and made sure that everything was running smoothly. He was very helpful and gave us good tips to ensure we don't have another blockage. Would definitely use them again and recommend to others.
Customer in Hitchin
Unblock pipe from utility to main drain.
Our chap called before arrival to advise eta, he arrived on time and explained what he was doing step by step and also what we needed to do to ensure we wouldn't encounter the same problem again. Great Service.
Customer in Hitchin
Drain unblocked
Work was completed quickly and efficiently although I do think the price was a little steep for what was only 10 mins work.
Customer in Hitchin
Unblocked exterior drain.
It transpired that the blockage was relatively easy to sort out with the right equipment and expertise as it took only a few minutes from start to finish to complete the job. The company was very efficient from booking, dealing with follow up questions and booking the job in the next day.
Customer in Hitchin
We have had both a drain clearance in one property and a CCTV examination in another.
Exemplary customer service. Always with a smile; nothing too much trouble. Times to suit. Arrived on time. Easy pay option. Good follow up and happy top recommend. Many thanks indeed for such a great experience!
9.72 out of 10
Offering our Welwyn customers top service at an exceptional price is our number one priority. At Happy Drains, our customers recognise that we only use highly trained, experienced, local engineers in Welwyn that we trust. Happy Drains go that extra mile to ensure your drains are left working and happy!
Welwyn Blocked Drain Clearance, Cleaning & Repair
Hertfordshire, AL6
We are the favourite, reputation does matter, read our reviews to see why!
We are the local Welwyn drain clearance business, we know our stuff and we're a friendly service. Family owned and locally based, always available to take care for your Welwyn drainage problems and we're ready when you are.
Once we're on site we'll quickly figure out the issues and get to the heart of your Welwyn drain problem as speedily as we can, fix it right and fix it fast first time, complete with best quality guarantees for you to be assured.
Our Welwyn householders and residential customers get the benefit of a fixed price with guaranteed excellent service and for local Hertfordshire businesses in whatever sector we always offer the very ‘best value’ complete service, call us now for great prices and speedy service.
Before we undertake any works, be assured we'll confirm our price to you to give you both satisfaction and contentment.
Happy Drains, leading the way with great customer feedback...

New frame & drain cover plus cement surround
"Lovely company to deal with. Friendly helpful staff. Contractors arrived on time & delivered exactly what we'd booked. Even though it was just drain cover it was finished off really nicely. Looks nice & smart again now. Thank you! "
Serious blocked toilet
"We have a great and professional service to be conducted by Mr. Damian (at Sutton) under Happy Drains Ltd this morning. Damian is so experience and professional to fix our serious blocked toilet within 45 mins. Damian is so patient to explain to us the whole situation. Deeply appreciated. Thanks Damian and Happy Drains team. A good and very reliable team !! thanks again."
Cleared a blocked drain
"Telephoned ahead of visit and arrived promptly. Very polite and informative offered follow-up advice and a new quote but wasn't pushy. Would definitely use again."
Blocked external drain
"I had a blocked drain (external to the property). I previously had someone to look at and they explained that the drain had likely collapsed and quoted to fix (over £1k). I thought I would double check. Happy Drains visited and drain was clear within minutes (blocked trap) with no requirement to dig up garden and replace drains (or use a camera). 60 day guarantee inc in case it blocks again. Engineer was polite, friendly, cleanly dressed and professional. As he said 25 years of experience. Great job, highly recommend (and I will be recommending further)."
Welwyn AL6 emergency blocked drain clearance, cleaning & repair. Fast service assured in Hertfordshire. |

Call 01727 227960
or our office mobile
07824 757572
All Welwyn CCTV surveys include our state of the art Drainify reporting software. Check out the demo:
Is your Welwyn property served by a septic tank or a sewage treatment plant?
If so, are you aware of all the Welwyn area environmental and building regulations?
More importantly, do you know if your Welwyn system is compliant with the new regulatory reform called the Small Sewage Discharge General Binding Rules?
Click the button to find out more...
Repairing defective drains using traditional and ‘Trenchless Technology’ (CIPP)
Our expert Welwyn drain replacement and repair services are the ‘up to the minute’ for improving and fixing damaged drainage systems cost-effectively. These benefits include:
- Lower Costs
- Zero scarring to drives and gardens
- Saves Time
- Saves Money
We always promise to deliver a level of service that you will enjoy and that is guaranteed.
Throughout any works in the Welwyn AL6, we work respectfully and tidily to take care of you and your property. Highest standards are always employed, so you are in the safest of hands.
CCTV technology allowing us to explore faulty pipes, drains and sewers.
If you are buying a Welwyn property or developing a Hertfordshire property or developing a site, its important you understand your drains and how they work. We will identify problems and deliver the most cost-effective repair for defects that get in the way of the free-flowing of your pipework. We offer WRC coding to categorise and score the severity of any problem found, and with that information we are then able to propose the most cost-effective solution to any drain problem found.
We provide a detailed written report including all the relevant and pertinent information you need to make informed decisions, in a way that’s easy to understand and jargon-free with an accurate quotation for the repair that may be required to bring the drain back up to a serviceable standard.
A blocked drain will need to be dealt with, fast.
The last thing you need is flooding, and the associated damage that flooding may cause. A local Welwyn trusted and vetted drainage company we respond fast & efficiently. For environmental and for health reasons, we don't delay, we're ready and waiting.
Our investment in the best tools for the job and in training in the use of high pressure jetting and electromechanical equipment leaves us with experience and knowledge to deal with Welwyn drainage problems - we typically solve the drain problem in just one visit.
Our drainage customers know great service when they see it...

Manhole blocked
"Very helpful and good price. Had a window for booking, got a call when half hour out. Arrived and sorted our drain blockage all very quickly. Thanks."
5* Service was Over and Above expectation.
"This is the second time I have used Happy Drains the Service provided last time was superb. This time it was even better! With no appointments available to clear my elderly mothers blocked toilet, Happy Drains rearranged a schedule to conduct the work to limit inconvenience. Joe attended and was absolutely first class keeping me updated directly at the request of my confused elderly mother. It is so reassuring to be kept informed of the detail when you are 80 miles away so I could explain it in simple terms to my mother, I recommend Happy Drains 100% and commend Joe for the 5* Service."
Kitchen sink drain cleared
"The engineer from Happy Drains cleared my slow running kitchen sink drain in minutes. The plumbing is not straightforward but he saw the issue and cleared the blockage very quickly without wasting time. He was very thorough and cleaned up afterwards. My sink now drains faster than it has in years and I am very happy. I was told exactly how much it would cost beforehand, so no hidden extras, plus the engineer offered a 28 day call back for free if the issue wasn't resolved. "
Unblocking of kitchen sink
"Paul was extremely professional and very tidy clearing up afterwards"

Blocked bathroom toilet
"They could not clear it initially so went outside and cleared the drain which they didn't need to (as that should be a Council responsibilty) - would recommend this company every time"
Main drain blocked
"Main drain was blocked. Happy drains were able provide a same day service and resolved the issue quickly and efficiently. very professional service. Happy with the service!"
Unblocking of drain
"Great communication from start to finish. Engineer was friendly, helpful & sorted the issue quickly. "
Recent Blog Posts...
In or near Welwyn, AL6, Hertfordshire, the following drainage problems could benefit from a Welwyn CCTV drain survey...
Ditch drainage problems in Hertfordshire
Fractured drain in Welwyn
French drainage problems in AL6
Bellied pipework in Hertfordshire
Problems with shared Welwyn drains
Joint displacements in Welwyn pipes and drains
Cracked or leaking Welwyn drains and pipes
Blocked or broken Welwyn drains
Tree roots damaging drains in AL6
Failed or broken soakaways in AL6
Welwyn CCTV-controlled cutting problem
Clogged or broken pipes in Welwyn
Cutting out tree root mass from Welwyn drains
Water level problems in AL6
Build-up of fat, grease, or detergent in Welwyn drains
Deformed pipework in Hertfordshire
Land drainage problems in Hertfordshire
Broken or blocked Welwyn sewers or sewage pipes
Ground movement causing Welwyn drain problems
Collapsed drain in Hertfordshire
Overflowing or leaking Welwyn septic tanks & cesspits
Overflowing or blocked Welwyn drain pipes
Bad smells in Hertfordshire
Vehicle activity affecting drains in Hertfordshire
Concrete, cement or builders’ rubble in Welwyn drain
Blocked Welwyn toilets and blocked Welwyn showers
Longitudinal cracking in Welwyn drains
Bellied drain in Welwyn
Welwyn pitch fibre pipework problems
We use selected local professionals in the Welwyn AL6 area.
This ensures a fast CCTV drain and sewer inspection & survey in Hertfordshire.
Welwyn and Hertfordshire drain services from a firm receiving great feedback...

Unblock sink pipes
"Great communication. Arranged visit to suit us. Lovely gentlemen attended and left it very tidy. "
Unblock drains in garden
"Informed me on the day of time of arrival. Came on time Fixed the problem quickly. Friendly service "
Exterior drain investigation
"First class service, the person was very polite, clean and tidy. Showed me the video so I could see first hand what he was seeing."
Call 01727 227960
or our office mobile
07824 757572
All Welwyn CCTV surveys include our state of the art Drainify reporting software. Check out the demo: