• Storm, Slot & Aco Drainage

    The team at Grey-Water have years of experience providing commercial storm drain cleaning services, as well as for slot and aco drains, and can effectively and efficiently put right any issues your business might have. Our teams provide fast, accurate quotes for both your home or commercial property by phone, email or, if appropriate, we will view your property to supply a quote free of charge.

​Storm Drain Maintenance, Aco & Slot Drains

Storm Drain Maintenance
Aco drains and storm drains prevent rain water from accumulating on flat surfaces by safely channeling it into main drainage systems. Unfortunately and all too often, they remain unmaintained and can routinely become blocked with mud, silt, sticks, trash, and various other forms of debris when these objects manage to find their way through the protective grates. These blockages can cause business estates and roads to flood, which can lead to major water and property damages in a very short amount of time. Where aco drain cleaning takes on a shallower and longer space, we will use different equipment types than we would for storm drain cleaning, which focuses water into a deeper sewer system. We provide commercial and residential storm drain cleaning in the London and Kent area.

Public Highway Drain Maintenance  

We are ready and on-call for any disruption to any Public Highways England stretch of road. This includes residential or commercial storm drain maintenance requirement. No matter the weather condition, you can count on us when you need it most.

Fast and Efficient

It is unlikely we will find an issue we haven't encountered before and with our specialist team and equipment, we are clearing drains in the shortest time possible.

Reduced Cost

Finding faults, providing solutions, saving you time and money, because we know where to look and what to do in an emergency.

Flood Prevention

If you're concerned about a drain causing a flood, it's better to call sooner rather than later. It will be easier to access and quicker to clear, and we will get there before the water reaches your property, or blocks property or a highway.

Storm Drain Cleaning
Storm drain systems need to be cleaned regularly, especially during periods and seasons with high rainfall. The Grey-Water team clean efficient, accurate, and use our high-pressure jetting methods to safely unclogs grease, sludge, sediment, mineral deposits, debris buildup, and tree roots in storm drains by utilising a high pressure water jet into the area. The high pressure jetting is propelled via specialised nozzles through the line, breaking up the sand, silt and debris, pushing it back toward the vacuum hose or tube. The mixture is then extracted by a powerful vacuum and deposited into one of our debris tanks to remove it from the system. The end result is a storm drain system that is free of buildup and pipe walls that are thoroughly cleaned, making them less likely to be blocked in the future, which could cause flooding and water damage at home or work. At Grey-Water Drainage, we have extensive experience in storm drain solutions, employing cleaning and maintenance to keep them at their best at all times - from regular cleanings to severe blockages, we are on-hand to get you back in your flow.
Storm Drain Maintenance
Fixed periodically, cleaning your storm drains can significantly reduce your probability of backups, clogs, and flooding. Most businesses should be fine with having their pipes jetted a couple of times a year, but restaurants and other food-service establishments should have their pipes jetted quarterly, or even monthly.
Storm Drain Inspections
Storm drains should also be regularly inspected to ensure they are working and functioning properly and are not at risk of causing any issues following a sudden downpour of rainwater. At Grey-Water Drainage, we are experienced in the maintenance and cleaning of your storm lines, using our industry-leading technology, paired with our extensively trained engineers to give you thorough inspections and high levels of customer service.

Contact us today if you need an expert team to clean, maintain, or inspect your storm drains, ensuring they are operating as efficiently as possible.

Don’t wait for the next rainy day; contact us today!
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.


Expert diagnosis & swift resolution of all blocked drains. Serving residential and commercial clients.

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

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We will fix any drain that is leaking, in any location of your property, inside & out on our visit.

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Drain Maintenance

We provide all manner of drain repairs, whether to an appliance, toilet, bath or shower.

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Have a new drain to install? We can provide a full excavation and installation service.

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Cost-effective, non-invasive drain repairs, eliminating the need for costly digging services.

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Keep your drainage system clear and clean, free of faults.

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We maintain all public and private storm and aco drainage systems.

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We maintain all manner of sewers on public & private estates.

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Tanker Services

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

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

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Tank Cleaning

We don't just empty septic tanks and cesspits, we clean and maintain them too.


Efficient CCTV drainage surveys for clear insights. Detect issues and prevent disasters.

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If you're not sure of the location of a drain & require a map or schematic, we got you covered.

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

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Lets 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

When should I undertake drain excavation?

The requirement to undertake drain excavation will depend on a variety of factors that could include persistent blockages, drainage system upgrades, root intrusion, and pipe replacement. If you have a problem with your drains but are unsure whether drain excavation is needed, give us a call or drop us an email and we can help identify the problem and the solution.

How long does drain excavation take?

Drain excavation can vary in length depending on several factors including the complexity of the project, the size and depth of the excavation, how accessible the drain is, what site and weather conditions are like. With these variables, it is difficult to determine an exact timeframe but upon assessing your particular drain system, we should be able to give a more accurate scale for excavation.

How much does drain excavation cost?

Our repair fee comes down to how much of your drain needs attending to. Factors that affect the total sum range from what kind of damage has been done - a drain could have been taken over by root ingress, or it could have cracked due to temperature or storms - to how far along the drain damage has been sustained. Our rates generally start at £350.

Do I have to pay in advance for drain excavation?

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

Do I need my drains excavated?

After a routine survey, we will have more information and can decide whether your drains need excavating. A survey will mean feeding a CCTV camera through your drain system to look for any damage or blocks. You may already recognize problems with your drains, however this doesn't always mean repair is needed; it could simply be a block that needs remedying.

Is there a local drain excavation service near me?

If you live in the Kent or London area, we have local operatives in your area who are able to carry out drain excavation and repair. Give us a call and we will provide you with our next available visit date.

Drainage Repairs In London
We cover drain repairs in the following areas of London:
Herne Hill

Our London Drain Repairs 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 Repairs In Kent

We cover drain repairs in the following areas of Kent:










Tunbridge Wells

Our Kent Drain Repairs 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 Repairs In Sussex
We cover drain surveys in the following areas of Sussex:

Our Sussex Drain Repairs 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 Repairs In Surrey
Our Surrey Drain Repairs 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