How to Kill Rats in Drainage?

The most effective way to kill rats in drainage systems is to use rat bait. Rat baits are chemical poisons designed to be ingested by rats, killing them when they consume it. Make sure to place the bait in areas where rats are likely to find it and check it regularly to make sure it isn‘t running low. Additionally, you can use traps to catch rats in the drainage system and remove them from your property. Make sure to check the traps regularly and move them to different areas periodically to ensure they remain effective.

So How to kill rats in drainage? Rats living in your home’s drainage system might sound like yet another urban myth about these rodents, but it’s actually a surprisingly common problem. Rats frequently enter properties via drainage systems; drain pipes provide them easy and convenient access to roofs, while their flexible, malleable bodies enable them to squeeze around u-bends and use a toilet to gain access to a property. Whereas mice can live off minimal amounts of food and water, rats need to feed every day and take on water. Drainage systems can provide them with all the water they need and make ideal nesting locations from which rats can head out and scavenge for any food they need.

How to kill rats in drainage?

Rat control & extermination
Rat control & extermination

If you discover rats in your drainage system, removing them should be a top priority. There are preventative measures you can take to prevent them from gaining access in the first place, and these can help prevent more rats from finding their way in and adding to the problem once they’re already in there.

Your first instinct might be to kill the rats in your drainage system using poisonous liquids, but this will only cause more problems. For one thing, you’ll have dead rats clogging your drains that will be difficult to remove. As the dead rats decay, they will release a foul odour that will find its way into your property.

A better solution is to install rat stops on any entrances to your drains that rats might use and then use some combination of poisons and traps to deal with the rats when they emerge from their hiding place. If you want to remove the rats from your drainage system as quickly and efficiently as possible, you should call in a professional pest control contractor to deal with them for you. You might also need a plumber if they or their nests have blocked your pipes.

6 Facts about rats in the UK


  • Rats are one of the most common rodents in the UK. They can be found in houses, restaurants, farms and anywhere else where there is food readily available. Rats multiply very quickly; they pair up 3-4 times a year (around 20 at a time) and can live for approximately 5 years.


  • The Norway rat (Rattus norvegicus) is the most common type of rat in the UK. They can grow up to 25 cm long and weigh up to 500 grams. They are usually a light brown or black, with a pale underside.


  • Rats are omnivorous and will eat anything they can find, including meat, vegetables, fruits, grains, and even other rodents.


  • Rats are very good at climbing and can easily get into buildings through small holes or gaps. They can also swim well and often enter homes through drainage pipes or toilets.


  • Rats can cause a lot of damage to property and food supplies. They can chew through wires, pipes, and plastic covers, and also damage roofs.


  • Rats spread a number of diseases including Weils disease, Typhus fever and Leptospirosis through their urine or faeces. Rats are capable of carrying over 30 different kinds of bacteria which can be transferred from their fur to anything they touch.

Pest Control Services for Other Pests


Carpet moth eggs vary in size and colour, but they typically look like small, white, oval-shaped larvae. To learn more about the appearance of carpet moth eggs, check out this article.


It can take several days to weeks for rat poison to take effect, so if you’re looking to find out How Long Does Rat Poison Take To Work, click here for more information.


The common cockroach found in the UK has an average life span of 1-2 years and goes through three distinct stages of life cycle: egg, nymph and adult. For more information about the life cycle, life span and other interesting facts about UK cockroaches, read our article here.

Bed Bugs

If you’re wondering what the early signs of bed bugs are and how to check for them, this article has all the information you need to make sure your home is bed bug-free.

Bon Accord Pest Control Services offers comprehensive coverage in the Greater London Area and offers a wide range of services to meet your needs.


If you’re looking for a way to banish drain flies from your home, this article on How to Get Rid of Drain Flies (Sewer Flies) offers some great advice.

Read more about pest control services for rats in London. Get in touch with Bon Accord your local pest control expert.

Pest advice for controlling Rats from BPCA

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