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.

9.74 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...

Blocked outdoor drains.
"Checked all drains and cleared as discussed. Good communication all the way through and spoke us through it/ took pictures. Turned up on time as booked - good communication. Efficient service, reasonable price too. "
Toilet Blockage Removal
"I've used Happy Drains a few times to unblock drains and toilets. It's always a quick and friendly service"
Bathroom drain unblocked
"The gent from Happy drains arrived promptly, explained what he planned to do, and resolved the issue quicker than expected. It was a smooth and friendly process and I'm very happy with the outcome."
So quick!
"Within an hour of phoning on 30 December my drain was sorted!"
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...

Blocked drain
"Quick response; good diagnosis on what to do; right equipment to clear the problem; did the job and explained how to reduce recurrence / maintainence. Good people to do work locally. And fair pricing"
Blocked drain just before Christmas
"Very friendly service, appointment obtained quickly and resolved our problem simply and effectively. Would definitely use again. "
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."
INitially cleared blockage but found root mass in the sewer so cleared that as well
"Not used this company before but when I was unable to clear a blockage in my sewer line I gave them a call. They were responsive and the engineer just got to work, identified where the sewer ran then blasted it clear. The sewer was running again within 15 mins. The knowledgeable engineer said he believed there were roots in the sewer as he could "feel" them. A camera run showed the root mass and where located. He blasted the roots from the inside then found that the majority were ingressing through the side of the sump on one of the manholes so cleared those too. Highly recommend this company"
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."
drain clearing
"Happy drains were so easy to work with and to organise the job. The engineer who came out was very friendly and did a great job - I will definately use Happy drains in the future"
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: