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.

9.73 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...

Clearing of a blocked drain line just past the interceptor
"I have used Happy Drains before, and again they provided a fast and excellent service from the original phone call right up to the finished job. Work carried out quickly with care, consideration, and cleanliness. Everything was left tidy, clean and in place. I would highly recommend Happy Drains. Finally, the cost of £114 (inc.VAT) and was value for money. I can't help but thank this company for its continued high level of service"
Outside runoff drain to mains was backed up and overflowing.
"Called them on a Saturday when the drain was especially playing up and within 20 minutes they rang back with the job booked in for the Monday. Friendly, prompt service on the phone, same again when the fella turned up. Done in 10 minutes. Didn't have to pay him then and there, but instead was issued online invoice and link to super-simple payment procedure. Brilliant. Highly recommended; will definitely use them again - just hope I won't have to! "
Clear Kitchen Drain
"Very polite from asking if it was okay to park on the drive to explaining what the problem was, what he planned to do, showing the camera footage & clearing up & explaining guarantee. Invoice came through with amount advised. Would definitely use again. "
Kitchen sink not running away
"Rapid response, friendly and reliable workmen, came and did exactly what they said. Follow up afterwards was excellent!"
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...

Outside drain clearing
"Calm her within an hour of my call. Polite and efficient from start to finish. Really happy. Thank you."
Clearing blocked drain
"The engineer turned up bang on time. He was polite, reassuring and completely competent. He resolved the problem quickly and efficiently. One very happy customer."
Drain unblocked
"Happy Drains were excellent. He was with us within 3 hours of contacting the company. He knew exactly what he was doing. Was polite, clean and efficient. Went above and beyond to clear a nasty blockage. Couldn't have been more impressed with the service. Thank you. Would highly recommend "
Downstairs loo and sink unblocking, by jetting upstream from manhole in the garden.
"Brilliant. From the first phone call to saying goodbye. Job explained, job completed and everything works perfectly. The young guy called Tommy from Sunbury was top drawer. Going to do this jetting annually now."

Unclogged Outside Drain
"Exceptional service from this company from first call to payment. Kept us up to date at every stage and resolved the problem with incredible efficiency. Not only Happy Drains but more like Drain Heroes! Thank you."
Blocked Drains
"Very pleased with Happy Drains. Contacted them and they were out the same day. Reasonable cost and the quote was upfront meaning no hidden fees. Tradesman was very polite and sorted out the problem very speedily"
Toilet and drain unblocked
"The service I received was excellent, I made a call, was answered by a really helpful person who gave me an appointment date, the engineer called beforehand to confirm came on time and carried out procedure and cleaned up afterwards, he was helpful and knew exactly what to look for. Just refreshing to get good service, would highly recommend Happy Drains...!"
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...

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."
Clogged kitchen sink pipe
"I was really glad with the service that they provided. They just sent someone the same day that I called ,and they were able to unclog the pipe within the same day. I was really happy, I wished that I would've called them sooner as I was trying for over a week to clear it myself without getting any results... and I also was really happy with the customer service and their payment method, It was really easy to pay with the link that they sent me and they charged me the amount that It was agreed by phone, without any extra fees... I definitely recommend it to everybody "
Clearing drain blockage.
"Engineer arrived on time, he was very polite and worked quickly. He explained everything he had done to me and made sure I was perfectly happy before he left my house. I will definitely be recommending Happy Drains to my family and friends and would not hesitate to use them again."
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: