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.

9.76 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...

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."
Clearing sink blockages
"Very happy with the work. No fuss, simple fixed quote, prompt and good communication. Could not have really asked for more."
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! "
Clapham SW4 emergency blocked drain clearance, cleaning & repair. Fast service assured in Greater London. |

Call 020 7870 3205
or our office mobile
07824 757572
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...

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."
Cleared a blocked garden drain.
"Cleared a blocked garden drain over bank holiday weekend on same day call out. "
Severe drain blockage cleared fast
"We used the Basingstoke branch, and I couldn't be happier. We had a severe blockage in our main waste pipe due to previous owners dumping grease for years. I called in the morning, they came just after lunch. The engineer was friendly and knowledgeable and explained every step thoroughly, cheerfully answering my questions (I'm curious about everything) and did the job quickly and with a great sense of humour, letting me fill the fatburgs that flowed out. Price was brilliant too. Couldn't recommend enough. "
Main drain for household waste water blocked
"Engineer arrived in good time. Could see what the problem was and removed the blockage effectively. He cleaned the area afterwards. I would be very happy to use this company again and recommend to others."
Drain cleared
"Happy Drains contacted me within minutes of posting my requirement. Their communication was always very clear, and the one time I misunderstood something, they immediately contacted me by phone to politely correct my error. The plumber contacted me by phone to give me 20 minutes notice of his arrival. On arrival, he immediately assessed the situation, and rectified it using equipment within the vehicle. The whole process took just minutes, and he explained the causes of the issue to me. At the same time he checked all other connected drains and made good the area."

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. "
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."
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"
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...

Clearing of bathroom drain.
"Exceptional experience with this company! The booking process was seamless. Communication with the company was very clear on scheduling and having costs upfront meant no lingering worry on the final bill. Work was done quickly and the technicians were very professional. Payment was smooth as well (was able to use Apple Pay). Will definitely get my business again if needed and will recommend them to anyone else in the same situation."
Blocked drains to whole house
"Called the mobile telephone number for Happy drains which was answered immediately, they called back with a slot 5 minutes later and 1 hour later the engineer turned up and did a fantastic job, The drains to our complete house were unblocked. Engineer was polite, professional and knowledgeable, we are delighted with the service that we received. Would highly recommend the company"
Blocked, full up double chamber sewer.
"Arrived as promised. Did the job 100%. Brilliant. Cleaned everything. Invoice as per phone quote. Very pleasant people. Recommend. Excellent."
Call 020 7870 3205
or our office mobile
07824 757572