• 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.

Watch Chris remove plastic debris from a factory drain using a drain jet wash.

How we unblock your drains

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.

Watch Chris remove plastic debris from a factory drain using a drain jet wash.

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, gully grabs 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.

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

How to spot a blocked drain

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 water is draining slower than usual, this can point to a blockage. 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.

Food, hair, oil, chemicals

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

Who We Work With


Local Council

Commercial Enterprise

Commercial Property Development

Investment Companies

Property Management & Estate Agency

Government & Quango

NHS & Private Healthcare


Warehousing & Distribution Parks

Food and Beverage Production

Retail & Shopping Centres

Proven Expertise

We are trusted by the public, government, SME and corporations.

The Importance of Hygiene

If your facility produces food, our vehicles and equipment are kept clean and well maintained. Our staff regularly use hand sanitisers and barrier creams which are replaced throughout the day. Fresh PPE is used on each project we attend. 

High Risk Areas

Our teams are used to accessing sensitive areas and have been security vetted many multiple times. If we have to access a high risk area, such as an airport airside facility, you can count on us to adhere to the rules.

Supporting Vulnerable Individuals

If we are attending a property with vulnerable occupants, their needs will be of vital importance to us. If the client is elderly or frail, we will explain with patience and care the situation and resolve the issue with utmost priority. If required, we will liaise with family members or care agencies at every step of the way.


Valued Customer Feedback

Extracts From Our Google Reviews. 

5 Star Service. Total Peace Of Mind.

 Emergency Drainage 

External Drain Unblocking

We diagnose and fix blocked external drains for both residential and commercial clients.

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​Blocked Sinks, Toilets, Baths

We have seen every type of blocked interior drain, providing an efficient & affordable service.

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Non-Dig Drain Repair

Permanent drain repairs without requiring any digging, done right first time. 

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CCTV Drain Surveys

Identifying the root cause of your problem with a no obligation quote to repair, fast. 

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​Drain Locating & Mapping

Not sure of the particular location of a drain or require a map or schematic, we got you covered.

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Pre-Purchase Surveys

Buying a home is not a big risk, if you know everything about it. Don't forget your drainage!

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Tanker Services

Septic Tank Emptying

Quick turnaround septic tank emptying at affordable prices using our own fleet vehicles.

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Cesspit Emptying

Cesspit emptying for all types of residential, commercial and events companies.

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Tank Cleaning

We don't just empty tanks and pits, we clean and maintain them too at affordable prices.

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Drain Maintenance

High Pressure Drain Jetting

Prevent the unexpected by cleaning and maintaining your drains.

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Drain Excavation

Have a new drain to install or a repair to carrout, we can excavate and access any drain.

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Drain Repairs

If you have a drain that is internal or in a difficult space, we don't need to dig, it can be relined.

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Let's Get The Flow Going
Get A Quote Now!

Do not hesitate to contact us with any queries.

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?

Due to previous experiences, we ask for payment in advance of drain unblocking.

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.

Drainage Unblocking Services In London
We cover drain unblocking in the following areas of London:
Herne Hill

Our London Drainage Services cover the following London 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

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

Don't see your post code?
No problem. Give us a quick call to see if we are in your area today Tel: 0800 141 3599 / Out of Hours Emergency: 07734 965 564
Drainage Unblocking Services In Kent

We cover drain surveys in the following areas of Kent:










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

Don't see your post code?

No problem. Give us a quick call to see if we are in your area today Tel: 0800 141 3599 / Out of Hours Emergency: 07734 965 564
Drainage Unblocking Services In Sussex
We cover drain surveys in the following areas of Sussex:

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, 


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

Don't see your post code?
No problem. Give us a quick call to see if we are in your area today Tel: 0800 141 3599 / Out of Hours Emergency: 07734 965 564
Drainage Unblocking Services 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

Don't see your post code?
No problem. Give us a quick call to see if we are in your area today Tel: 0800 141 3599 / Out of Hours Emergency: 07734 965 564