• Drainage Unblocking Services

    Grey-Water Drainage operate an unrivalled 24/7 emergency drain unblocking call-out service for all your commercial and residential blocked drains. 

    From blocked manholes, toilets, showers, urinals and sinks we have the tools and expertise to get you back in your flow.

How we unblock drains, fast

Drain unblocking company
When called out to a blocked drain our engineer will assess the problem and decide upon the safest and most effective method of clearance.


Grey-Water Drainage have various methods of clearance at our disposal:


For small chain cleaning machines and small internal pipe work - sinks, toilet pans, kitchen waste - we use a number of different tools including plungers, mechanical augers, chain cleaners and mini high-pressure jetting.


For external blockages such as manholes, we employ a variety of equipment including drain rods, high pressure water jetting, chain cleaners and gully grabs.


Our engineers are fully certified in high pressure jetting techniques, which is especially important in older drainage systems where clay pipe can easily be damaged by improper application of this method.


We clear 95% of blockages on our first visit, without the need for any further work or costs. 

For your peace of mind we aim to attend all blocked drains within a 2/3 hour window to get you back in your flow.

You can call us now if you need immediate support, otherwise read on for tips on how to try and unblock your drain first.

See our team in action!

Watch Chris use a high-powered Jetvac to perform drain unblocking in episode 9 of The Clean Sweep.

Fully Qualified Engineers

Unblocking drains across the SE of England.

Safe, Effective Methods

Unblocking a drain in the wrong way can cause significant damage and repair bills. We have high-end solutions to ensure the best quality service for you.

Internal blocked drains

We have all the tools, plungers, mechanical augers, chain cleaners and mini high-pressure jetters to fix those pesky internal blocked drains in your home or business.

External Drain Unblocking

Industrial expertise and equipment to hand includes drain rodding, high pressure water jetting, grabs for gully unblocking and more. No job too big.

Unblocking 95% of all drains on our first visit.

It is rare we attend a blocked drain we have inadequate tooling for; it's so rare it accounts only for roughly 5% of our calls. In the majority of instances you get a first time fix, with remedial works to prevent further recurrence, saving you money.

Residential - How to spot a blocked drain

We support domestic households in providing drainage solutions, and often it can be tricky to ascertain whether a drain is blocked. Here are some ways to tell:

 Persistent bad smells 

You may be able to smell strange or unpleasant odours from your sink, bath, shower or taps. This might indicate something trapped in your drain, perhaps decomposing.

 Slow drain time 

If you spot that water is draining slower than usual, this can point to a blockage within the drain. In some cases, this can cause overflow.

 Noises coming from your drains 

Air can get trapped in your drains and cause rumbling or gurgling sounds due to blockages. Listen out for persistent noises coming from your drains.

 Food, hair, oil, chemicals 

If you're shedding hair that goes down plug holes, are washing pets in baths or sinks, this can build up and clog drains. The same can be said for food. Oil can also congeal when cooled and stick to the inside of drains. The same type of effect can also occur when pouring away paints, which along with solvents, can harm the environment.

 Standing water 

Puddles or pools of water forming around drains or in the yard, particularly after rainfall or using water fixtures, puddles or pools of water forming around drains or in the yard suggest water is not draining properly due to a blockage.

 Overflowing toilets 

If, when you flush the toilet, water overflows from the bowl, this likely indicates a blockage in the toilet or the drainage pipes connected to it.

What our customers say

How to unblock your toilet, sink, urinal, or shower

Hover the images below for our tips on how to unblock your utilities before you call us.

When attempting to unblock a toilet, you can first try using a plunger. Be cautious over using rods as if you aren't aware of how the pipework runs behind the toilet you could forcibly detach a pipe and cause a nasty leak in your home. Make sure there's enough water in the bowl to cover the suction cup, then push and pull firmly. If that doesn't work, consider using a toilet auger to dislodge the blockage.
When dealing with a blocked sink, start by pouring boiling water down the drain to dissolve grease and loosen debris. You can often find sink unblocking solutions at local shops stocking drain gel. Plungers may also be used to dislodge clogs. For stubborn blockages, consider using a drain snake to break up the obstruction, or use a mixture of baking soda and vinegar.
When attempting to unblock a urinal, start by pouring a mixture of hot water and dish soap down the drain to break down any debris that has built up. Next, you should use a urinal auger to clear any stubborn clogs. If the blockage persists, try using a plunger specifically designed for urinals in order to create pressure and dislodge the obstruction.
To unblock a shower drain, you should remove the drain cover and use a wire hanger or similar instrument to fish out any visible debris that could be blocking the flow of water. You can also use a drain gel, which can be found at many local shops, before pouring a mixture of hot water and vinegar down the drain to dissolve grease and soap scum.

Have we not got you flowing yet? It's time to call the drain unblocking experts

Commercial or residential, our team are fully equipped to resolve your issue today.

Phone, email, or LiveChat - you are one step away from complete peace of mind.

Call us including for out of hours emergencies

Phone: 0800 141 3599

Are you a commercial enterprise, public highway or council?

Our options satisfy the most demanding requirements in addition to resolving the most immediate problems.

 Full reporting 

We conduct thorough inspections and assessments to identify issues or potential problems and provide you with a full report of our findings.

 Flood prevention 

We work with clients to develop and implement flood prevention and management strategies that sustain drainage infrastructure.

 Emergency response 

In the event of an emergency, we provide response services to quickly resolve the issue and minimise disruption.

 Consultation and planning 

We provide consultation and planning services in order to develop long-term drainage strategies, including recommendations or upgrades.

 Simple estimates 

We provide simple estimates for remedial work. In this way, our clients understand what they are paying for and how cost is linked to service.

 Supporting vulnerable individuals 

If the client is elderly or frail, we will explain with patience and care the situation and resolve the issue with utmost priority.

 High risk areas 

Our teams are used to accessing sensitive areas and have been security vetted many multiple times in areas such as an airport airside facility.

 Standard payment terms 

We provide invoice billing, payment schedules, and address accepted payment methods as jobs are completed.

Here are just some of our commercial clients

We don't just serve domestic households across Kent and London but any type of commercial enterprise, local council and public highway.

KCC Use Drain Companies Like Greywater Drainage
Westfield London Uses London Drainage Company Greywater Drainage
Greywater Drainage & The Body Shop
Greywater Drainage Solutions & Prezzo

Who we work with

Spot your type of organisation? Let's discuss your needs.

Get a commercial quote now!

Phone, email or LiveChat, you are one step away from complete peace of mind.

Call us including for out of hours emergencies

Phone: 0800 141 3599

Frequently Asked Questions
When should I have my drains unblocked?

If you are concerned that your drains might be blocked, you should take action immediately; it may be more serious than you think. We have found all manner of debris and refuse blocking drain passages, which can lead to overflow, unpleasant smells and damage to the overall drain system.

How long does it take to unblock a drain?

Depending on the size of your property, where the blockage is situated and how much work needs to be done to remove the blockage, the completion time can take as little as a few minutes, or as much as a few sessions. It can be that there are only small pieces of debris that can be lost or flushed that block the drain, although we have also come across ingrown roots that harm the integrity of the drains and block proper water flow, which take a lot longer to remedy.

How much does drain unblocking cost?

The sum total of our surveys is dependent on a number of factors, such as the length of a blockage, the type of blockage, and how long it takes to dispose of the blockage. Our rates generally start at £60.

Do I have to pay in advance for drain unblocking?

We will provide invoice billing upon completion of drain unblocking and can give an estimate beforehand.

Do I need my drains unblocking?

After a drain survey, we can ascertain whether your drains need unblocking. A survey will mean feeding a CCTV camera through your drains to look for any damage or blocks.

Will any damage be done to my drains whilst unblocking?

We will never damage your drains when carrying out unblocking. We use state-of-the-art equipment such as high-pressure water jets, handled by fully-trained professionals to clean your drains and eradicate any unwanted build-up of debris.

Is there a local drain unblocking service near me?

If you live in the Kent or London area, we have local operatives in your area. We are available to carry out commercial and residential drain unblocking, depending on what you require. Give us a call and we will provide you with our next available visit date.

Can I unblock a drain myself?

Due to the specialist training and equipment needed in order to unblock a drain, only experts are qualified to undertake them. With the complexity of some drain systems, without a proper survey being carried out beforehand, there is no way to know how the drain looks, or how to navigate it with a pressure washer. Talk to us today and find out how we can save you stress and money with our experienced staff.

Our Service Areas
Drainage Unblocking In London
We cover drain unblocking in the following areas of London:
Herne Hill
Newham
Twickenham

Our London drainage services cover the following post codes: 

East London:
E1, E1W, E2, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13, E14, E15, E16, E17, E18, E20, E77, E98

West London:
W1A, W1B, W1C, W1D, W1F, W1G, W1H, W1J, W1K, W1S, W1T, W1U, W1W, W2, W3, W4, W5, W6, W7, W8, W9, W10, W11, W12, W13, W14

South East London:
SE1, SE1P, SE2, SE3, SE4, SE5, SE6, SE7, SE8, SE9, SE10, SE11, SE12, SE13, SE14, SE15, SE16, SE17, SE18, SE19, SE20, SE21, SE22, SE23, SE24, SE25, SE26, SE27, SE28

South West London:
SW1A, SW1E, SW1H, SW1P, SW1V, SW1W, SW1X, SW1Y, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20

Twickenham 
TW1, TW2, TW3, TW4, TW5, TW6, TW7, TW8, TW9, TW10, TW11, TW12, TW13, TW14, TW15, TW16, TW17, TW18, TW19, TW20
Drainage Unblocking In Kent

We cover drain unblocking in the following areas of Kent:

Ashford

Canterbury

Dartford

Gillingham

Gravesend

Maidstone

Medway

Rochester

Sittingbourne

Tonbridge

Tunbridge Wells


Our Kent drainage services cover the following post codes: 


BR1, BR2, BR3, BR4, BR5, BR6, BR7, BR8


DA1, DA2, DA3, DA4, DA5, DA6, DA7, DA8, DA9, DA10, DA11, DA12, DA13, DA14, DA15, DA16, DA17


TN8, TN9, TN10, TN11, TN12, TN13, TN14, TN15, TN16,TN17, TN18, TN23, TN24, TN25, TN26, TN27, TN28, TN29, TN30


CT1, CT2, CT3, CT4, CT5, CT6, CT7, CT8, CT9, CT10, CT11, CT12, CT13, CT14, CT15, CT16, CT17, CT18, CT19, CT20, CT21

Drainage Unblocking In Sussex
We cover drain unblocking in the following areas of Sussex:
Petworth
Shoreham

Our Sussex drainage services cover the following post codes: 

BN1, BN2, BN41, BN42, BN45, BN50, BN51, BN88, BN3, BN52, BN5, BN6 BN7, BN8, BN9, BN10, BN11, BN12, BN13, BN14, BN91, BN99, BN15, BN99, BN16, BN17, BN18, BN20, BN21, BN22, BN23, BN24, BN25, BN26, BN27, BN43, BN44

GU28, GU29

PO18, PO19, PO20, PO21, PO22

RH6, RH10, RH11, RH77, RH12, RH13, RH14, RH15, RH16, RH17, RH18, RH19, RH20

TN2, TN5, TN19, TN20, TN21, TN22, TN31, TN32, TN33, TN34, TN35, TN36, TN37, TN38, TN39, TN40
Drainage Unblocking In Surrey
Our Surrey drainage services cover the following post codes including some bordering Hampshire locations.

CR0, CR9, CR44, CR90, CR2, CR3, CR4, CR5, CR6, CR7, CR8

GU1, GU2, GU3, GU4, GU5, GU6, GU7, GU8, GU9, GU10, GU11, GU12, GU14, GU17,GU15, GU16, GU17, GU18, GU19, GU20, GU21, GU22, GU23, GU24, GU25, GU26, GU27, GU28, GU29, GU30, GU31, GU32, GU33, GU34, GU35, GU46, GU47, GU51, GU52

KT1, KT2, KT3, KT4, KT5, KT6, KT7, KT8, KT8, KT9, KT10, KT11, KT12, KT13, KT14, KT15, KT16, KT17, KT18, KT19, KT20, KT21, KT22, KT23, KT24

RH1, RH2, RH3, RH4, RH4, RH5, RH6, RH7, RH8, RH9

SM1, SM2, SM3, SM4, SM5, SM6, SM7

TW9, TW10, TW20