Blocked drain in Knebworth? Get it unblocked FAST!
By charging a simple fixed price for our domestic drain unblocking services across Knebworth, you know exactly what you will pay for that blocked toilet, drain or sinks. Our Knebworth all-in price includes jetting and all the required time. Fast expert and great value premium services guaranteed.
We are the premier drainage service provider for Knebworth businesses. Commercial clients can always rely on us for great value for money drainage services. Our highly skilled Knebworth drainage teams use the latest equipment to efficiently deliver the very best service and prices to local businesses.

9.71 out of 10


Reviews are the most vital tool to help us understand how we are doing in Knebworth. They also help when there are enough to form a substantial mass and give consumers in Knebworth a guide about if you should be employing them. Weigh up our many reviews and see why you should trust and why.

Knebworth Blocked Drain Clearance, Cleaning & Repair
Hertfordshire, SG3


This is what we do to solve your Knebworth drainage problems:
- Arrive promptly.
- Clear the troublesome blockage,
- Charge the price quoted,
Job done!
Is your Knebworth property served by a septic tank or a sewage treatment plant?
If so, are you aware of all the Knebworth area environmental and building regulations?
More importantly, do you know if your Knebworth system is compliant with the new regulatory reform called the Small Sewage Discharge General Binding Rules?
Click the button to find out more...
This is why we are the Knebworth #1 favourite drain contractor, our reviews say it all!
We are customer driven, undertake quality drainage works, always at a great price anywhere through Hertfordshire, simply because we care!
Whilst Knebworth drain clearance is not the world's most glamorous job, we think it’s important, no job is too big or too small.
We offer fantastic fixed price Knebworth drain service so we take out any worry about the price. Our reviews confirm you are dealing with the good guys.
What some of our Knebworth drainage customers say about us ‘’Very impressed. Arrived at the house within 2 hours of us placing the initial call. Could not have been more helpful. We would not hesitate to call again and will recommend to friends.” and they also say “Brilliant! On Time. Very quick and tidy.” and further “Excellent!”
We are proud to say all of our reviews are independently verified.
Customer driven plus great price and service...

Cleaning two separate internal waste pipes
"Great service .. and initial call referred me into a senior site engineer who discussed the feasibility and then referred me back to admin for the quotation. Great admin and a super quick and efficient job on site "
Drain clearance, unblock.
"Fast and efficent service. Whole team from start were great. Would recomend and definately use again. And for the job they had to do was a very reasnoble price! I personaly am very grateful.!"
Bath room sink unblock
"Bathroom sink was blocked long time. Profisonal plumbing company engineers visited and advice the bathroom sink plumbing work is wrong. But happy Drain engineer visit used the aqua back Hoover problem solved. As a customer I have no hesitate to recommend this company."
Blocked kitchen sink drain
"I noticed that the patio was awash with soapy water and realised that the drain leading from the kitchen sink was blocked and overflowing. I phoned Happy Drains and they were so helpful. Arranged for someone to call round between 1 and 3. I arrived home at 12.55 to find them patiently waiting outside. They were very friendly and helpful. Did a thorough job clearing the drain, lifting the manhole cover and making sure the water was flowing freely. I was delighted with their service and would definitely recommend them."
Knebworth SG3 emergency blocked drain clearance, cleaning & repair. Fast service assured in Hertfordshire. |

Call 01727 227960
or our office mobile
07824 757572
All Knebworth CCTV surveys include our state of the art Drainify reporting software. Check out the demo:
Buying, selling, moving or building in Knebworth?
The sort of problems we can find in Knebworth drains and sewers include.
- Root penetration through joints
- Displaced, dropped or open joints
Our trained Knebworth drainage operatives quickly and accurately diagnose and code the Knebworth drain defects using the latest industry standard drain CCTV surveying equipment and reporting software. Our technical reports identify and pinpoint all the relevant findings and Knebworth drainage problems. All our reports are easy to understand, complete with colour stills and recommendations.
House Pre-Purchase Report: We undertake a fixed price Knebworth home buyer CCTV drain survey. In Knebworth SG3 we include in our price technical reports that show any defects, with a quotation for any remedial repairs required.
Repair Works
From minor localised pin point repairs to the complete overhaul of a Knebworth drainage system, we have the expertise and equipment to carry out the works professionally and efficiently using ‘no dig’ and ‘excavation’ techniques.
Re-lining isn’t suitable for every application, so where necessary we are equipped to carry out traditional excavation methods for drainage repair or replacement. Whatever the chosen option it will represent the best value option available to save time and money.
Drainage experts to clear Knebworth blockages quickly
Not only that but at a great price, efficiently & safely.
All it takes is a couple of clicks or just one phone call to our friendly team member. Skilled and trained to deal with all Knebworth SG3 drainage and WC blockage problems.
Normally the vast majority of Hertfordshire blockages are solved in one visit using electro-mechanical machinery and high pressure jetting.
The best bit is that electro-mechanical machinery and high pressure jetting is included in the price.
“Brilliant! On Time. Very quick and tidy.” and there's more...

Unblocking a kitchen runaway.
"They arrived within the stated timeframe, the man explained the problem and how he would deal with it. The work was done swiftly and satisfactorily. Wouldn't hesitate to call them again if necessary or to recommend them to anyone else."
sewer pipe blockage
"Tommy & Gordon Happy Drains' amazing guys, saved me from another drainage company I called who overcharged for their incomplete services and wanted several £1000's! for further work! Found & phoned Happy Drains for second opinion. Will @ Happy Drains was so helpful and got Tommy & Gordon on the case. They arrived promptly and using their camera technology found the issue, and cleared the drains. No additional work required! Received very clear report of work with photos. Very reasonable price. Honest, trustworthy, tidy and HAPPY, cannot praise them enough!!!!!!!!!! "
Blocked Toilet
"An excellent service from initial booking through to completion. Plenty of communication both by text and in person. Everything was explained, and on completion, useful advice given. I would not hesitate in recommending Happy Drains."
Blocked toilet
"Well done Tommy (and the whole team) for a great service and transparency on when to expect someone and on pricing. Was able to fix the issue simply, quickly and without fuss."

Drain clearance
"Excellent and friendly communication from the office and from the person going the job. Quick, courteous and got everything sorted for me. Couldn't ask for more really, just professional, competent and happy to help."
Main drain to house needed to be unblocked
"The drain was unblocked very efficiently. The job was done in a neat and tidy manner and we were very happy with the outcome."
Unblocking of drain
"Excellent service, on my doorstep within 90 minutes of making them aware of problem. Work completed thoroughly and tested after. "
Recent Blog Posts...
In or near Knebworth, SG3, Hertfordshire, the following drainage problems could benefit from a Knebworth CCTV drain survey...
Failed or broken soakaways in SG3
Bellied drain in Knebworth
Collapsed drain in Hertfordshire
Cracked or leaking Knebworth drains and pipes
Deformed pipework in Hertfordshire
Broken or blocked Knebworth sewers or sewage pipes
Bellied pipework in Hertfordshire
Tree roots damaging drains in SG3
Blocked Knebworth toilets and blocked Knebworth showers
Fractured drain in Knebworth
Overflowing or blocked Knebworth drain pipes
Knebworth CCTV-controlled cutting problem
Blocked or broken Knebworth drains
Build-up of fat, grease, or detergent in Knebworth drains
French drainage problems in SG3
Longitudinal cracking in Knebworth drains
Problems with shared Knebworth drains
Ditch drainage problems in Hertfordshire
Cutting out tree root mass from Knebworth drains
Land drainage problems in Hertfordshire
Concrete, cement or builders’ rubble in Knebworth drain
Overflowing or leaking Knebworth septic tanks & cesspits
Knebworth pitch fibre pipework problems
Clogged or broken pipes in Knebworth
Joint displacements in Knebworth pipes and drains
Bad smells in Hertfordshire
Water level problems in SG3
Ground movement causing Knebworth drain problems
Vehicle activity affecting drains in Hertfordshire
We use selected local professionals in the Knebworth SG3 area.
This ensures a fast CCTV drain and sewer inspection & survey in Hertfordshire.
Knebworth and Hertfordshire drain services from a firm receiving great feedback...

Blocked Drain
"Very quick and no fuss. Damien showed up on time and had all the equipment needed. Sink functioning in less than an hour. Highly recommend."
Unblock drain re kitchen sink
"Happy Drains sent Alex who was superbly focused and dedicated. He rapidly identified the blocked kitchen sink that had not been resolved by a plumber was a drainage issue (as suspected), found the drains, identified the correct one linked to the kitchen, sent a camera down to find the blockage, and rinsed it away with high pressure water jet. Took an hour, with a lot accomplished. No additional or unexpected charges. Very happy with their service and professionalism (given dealing with these sorts of issues can be a minefield of distrust)."
Toilet drain pipe investigation
"Amazing in terms of just taking the time out on the phone to just walk through problem to see if they needed to even come out and also proposing various options to move forward. The prices quoted were also reasonable."
Call 01727 227960
or our office mobile
07824 757572
All Knebworth CCTV surveys include our state of the art Drainify reporting software. Check out the demo: