Blocked drain in Clapham? Get it unblocked FAST!
By using highly trained local engineers with years of experience, we can promise you that we will get that Clapham drain unblocked in no time at all. We offer a fixed price for Clapham households, so you can't be caught out by hidden fees, that's why we're number one in Clapham for blocked drains!
Attention all Clapham businesses with drainage problems — we are ready and waiting for your call. We are known for delivering the best value for money, & top business customer satisfaction levels. We aim to provide all our Clapham business customers with the very best value and service in Clapham. Whatever the problem, we will solve it.

9.73 out of 10


Authentic experiences shared by our customers in and beyond Clapham. That ensures we always listen and are always focused on the right things. Trust is the cornerstone of any trade relationship. Trust in us by our customers is paramount, our priority, we love happy customers.

Clapham Blocked Drain Unblock & Repair
Greater London, SW4


We love to clearClapham blocked drains.
In Clapham SW4 and Greater London, we unblock drains because it is what we do best. We always deliver great service in and around Clapham, and we always try tofix it first time.
Happy Drains is the right place, with the right people for unequalled service and best prices. All with no quibble, fixed charges for householders!
Occasionally some drains can begin to drain slowly, gurgle or completely block. This is often due to a build-up of soap sludge, oils and detritus, eventually over time this starts to back up in the pipework. Blockages can also be caused by the strangest and most surprising objects that have been accidentally flushed down a toilet. There are, of course, drainage problems that can be caused by structural defects and root ingressas well.
Whatever the problem is, in and around Clapham, we have the know-how to deal with it, quickly and professionally.
With over 25-years of consistent and dependable service in Clapham SW4 and Greater London, we are here to help.
Our reviews show that our customers know we are the best choice, when you need fast and trustworthy serviceatvery reasonable prices. With expert technicians in Clapham SW4 and Greater London, who are ready to deal with all types of drainage issues.
Many happy customers...

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. "
Blocked drain
"Amazing service. I couldn't recommend these guys highly enough. I don't have his name but the young man who came took well over 2 hours to fix our problem which had accumulated over 40 years. He kept everything tidy, was courteous and professional and just when I thought we were going to be left with a major problem his persistence & experience saved the day. "
Toilet Blockage Removal
"I've used Happy Drains a few times to unblock drains and toilets. It's always a quick and friendly service"
Blocked drain
"I had a major blockage in one of my drains. Called happy drains who responded very quickly. It took a couple of attempts to clear but they done an amazing job"
Clapham SW4 emergency blocked drain clearance, cleaning & repair. Fast service assured in Greater London. |

Call 020 7870 3205
or our office mobile
07824 757572
All Clapham CCTV surveys include our state of the art Drainify reporting software. Check out the demo:
Is your Clapham property served by a septic tank or a sewage treatment plant?
If so, are you aware of all the Clapham area environmental and building regulations?
More importantly, do you know if your Clapham system is compliant with the new regulatory reform called the Small Sewage Discharge General Binding Rules?
Click the button to find out more...
Fixed prices across Clapham and the surrounding areas
It’s always worrying for a householder when something goes wrong with a drain in Clapham.
We make sure that we unblock household drains at a fixed price, meaning you don't need to worry, we are fast and fix the problem with zero fuss.
Service drainage repairs in Clapham and across Greater London
Drainage defects in Clapham are resolved by using the best technology available, as well as traditional methods of repair. All done cleanly and effectively.You can be confident that we will get the job done right, to the highest possible standards, and at thevery best prices in Greater London.
Drain unblocking in Clapham, SW4 and the surrounding areas.
If you are in and around Clapham, and your drains are slow flowing or blocked, or just are a bit whiffy, we will find the problem and restore maximum flow.We are fully equipped with all the apparatus that is needed for the task. With the most basic tools for simple problems or high-pressure water jets for the more ‘interesting’ problems, and we make sure that the job is done properly!
CCTV drainage investigations in Clapham and around Greater London
Discovering the dirty truth about your drains and their condition is what we love to do.Then we figure out the best, quickest and most cost-effective way to put your drains right. Our comprehensive technical reports, come with a fully specified quotation and estimates for any work that may be needed in Clapham, and around Greater London.
Great reviews from our happy customers...

Unblock Drain
"Great service.Rang at 7.45am came at 9.15am . Job completed by Jack quickly and very efficiently. The price was prearranged so no shocks! Will definitely use again if necessary..Brian D "
Blocked drain cleared
"Blocked drain was cleaned out and working again in no time at all . The appointment was made over the phone and the engineer rang when he was on his way . He used a high pressure jet and left everything tidy. "
Unblocked our drain
"Happy Drains were very professional in attending carrying out the works and very pleased with the results would highly recommend them. "
Drainage survey
"Honestly the most efficient business I have come across. Called up and had a drainage survey booked in within 5 minutes at a very reasonable price. Jason who conducted the survey was very polite and helpful and William was great with getting the survey over to me in a very timely manner. Would highly recommend."
Blocked sewerage drains
"Happy Drains receptionist quickly arrange a visit the following morning to unblock our drains. We received a call 45 mins before arrival and the drains which had been blocked for 48 hours were unblocked within a few minutes, which was excellent as man hole covers in a neighbours garden were opened and showed that the drains were being exclusively used by our house. Excellent job by Happy Drains. Wouldn't hesitate to use them again. Quick polite and courteous."

Unblock drains outside
"From making the enquiry to the finished job a very professional service was given. My booking was confirmed by phone. The team rang me to give me eta on arrival they got on with the job immediately . Cleared blocked drains and hosed down leaving everything clean and tidy. Ten out of ten service and good value "
Clearing out storm drains on sunken patio
"Very pleased. Harry arrived and assessed problem. Very honest and told me he could only guarantee a 50% sucess rate. On completion he seemed as happy as I was that the issue was resolved. Lovely personable guy. Thanks"
Incredibly helpful
"Just moved into new home &found drains blocked. Water company said couldn't come out for 3-5 days, - too long if you can't use the loo! Left message for Gary. Even though it was Sunday, he called back really quickly and talked us through what problem might be, reassured us we'd be okay overnight, and if the water company still wasn't able to attend, he'd come out Monday to fix things. Thankfully, water company engineer very helpfully appeared at 6pm and cleared things. Gary called back early Monday to check on us, and was again so helpful. Couldn't ask for someone more helpful!"
Recent Blog Posts...
In or near Clapham, SW4, Greater London, the following drainage problems could benefit from a Clapham CCTV drain survey...
Land drainage problems in Greater London
Problems with shared Clapham drains
Overflowing or leaking Clapham septic tanks & cesspits
Clapham pitch fibre pipework problems
French drainage problems in SW4
Bad smells in Greater London
Broken or blocked Clapham sewers or sewage pipes
Longitudinal cracking in Clapham drains
Blocked Clapham toilets and blocked Clapham showers
Clogged or broken pipes in Clapham
Overflowing or blocked Clapham drain pipes
Clapham CCTV-controlled cutting problem
Build-up of fat, grease, or detergent in Clapham drains
Vehicle activity affecting drains in Greater London
Collapsed drain in Greater London
Failed or broken soakaways in SW4
Blocked or broken Clapham drains
Concrete, cement or builders’ rubble in Clapham drain
Water level problems in SW4
Bellied drain in Clapham
Joint displacements in Clapham pipes and drains
Ground movement causing Clapham drain problems
Fractured drain in Clapham
Cracked or leaking Clapham drains and pipes
Ditch drainage problems in Greater London
Bellied pipework in Greater London
Cutting out tree root mass from Clapham drains
Tree roots damaging drains in SW4
Deformed pipework in Greater London
We use selected local professionals in the Clapham SW4 area.
This ensures a fast CCTV drain and sewer inspection & survey in Greater London.
Our Clapham area coverage:
Clapham and Greater London drain services from a firm receiving great feedback...

Unblocking drain
"Having used Happy Drains previously, I contacted them about a blocked drain on my property. They responded immediately, sent engineers who were prompt, professional and friendly and had the job done in 25 minutes. Just to top it off, the price was the same as my last call-out with them two years ago. Excellent service all round."
Blocked Drain
"Turned up promptly, assessed the situation, confirmed the quote and cleared the drain. All very quick and efficient with a very cheerful and polite tradesman. Couldn't have gone better."
Blocked foul water drain.
"Great response by Martin to quickly identify the problem and cleared in a short time. His knowledge of the drain system with blockage prevention advice was appreciated."
Call 020 7870 3205
or our office mobile
07824 757572
All Clapham CCTV surveys include our state of the art Drainify reporting software. Check out the demo: