How do I stop rats climbing up drains pipes?

Stop rats climbing up drain pipes blog rat in external drain pipe

Stop rats climbing up drain pipes because it is essential for the health and hygiene of any domestic or commercial drainage system. Rats can often gain entry through damaged pipes or drains, and once in, could gain entry to your home or business. It is essential to ensure your drainage system is working properly and installed correctly to prevent any infestation or entry of rats.

Rats in Drains

In the UK, sewers are the ideal environment for rats in drains to live, which is why it is important to stop rats climbing up drain pipes. The drains of your properties connect to sewers that are teeming with the vermin, so ensuring your drains are in good working order is crucial to protecting yourself from disease-carrying pests. It is also important, depending on the type of drain used by your property, to have additional, specialised measures in place to prevent rat entrance.

Common signs of a rat infestation:

  • – Rat droppings found in the property
  • – Chewed paper, packaging, cables or plastic
  • – Small holes gnawed in walls
  • – Scratching noises in the walls, floors or roof

How do I stop rats climbing up drain pipes?

Preventative measures including valves, barriers and traps can help your drains be protected from rat entry. Rats are great climbers and can make it through small pipes, tight bends and areas with lots of water flow.

Sealed Drainage

Ensuring your drainage is sealed is essential to protect your home or business from rats and to stop rats climbing up drain pipes. Sealed drainage means there are no openings in the pipework between the discharge stack of the home or sewer. Although this does not protect the property from infiltration stemming from the sewer itself, as well as the protection it does offer to homes, it helps stop rats entering the sewer. This type of drainage will require regular access covers for inspection chambers and entry of rods to clear blockages. These should allow maintenance of the drainage pipes from the surface.

Rodent Barriers

Rodent barriers are installed within the pipes to prevent rodent entry to your drainage system, helping to protect your home from being infested by rats in drains. This includes a variety of devices within the pipes such as:

  • – Downward facing fins in the discharge stack
  • – One way valves in the underground drainage
  • – Enlarged sections of the discharge stack to prevent rat climbing

Intercepting traps

Intercepting traps are a U-bend section of domestic sewer pipe made from fireclay. These are also known as the Buchan trap, disconnecting trap or Bristol interceptor. This U-bend is filled with water. Although this trap will prevent sewer smells from escaping the pipes, its worth in protecting against rodents is rather more dubious; they are often easily able to swim through an interceptor trap. Another downside of this type of protection is that it is easily blocked and will require frequent maintenance. Thus, it is crucial that the trap is installed such that a rod can be easily inserted to remove blockages.

Covers & Gratings

Placement of plastic covers or metal gratings that allow the passage of waste but block rats should be placed within the pipes.


Metal cages are often placed in the ventilation pipes that stem from over the discharge stack, blocking that route for rat escape & entry.

How we professionally remove rats from drains

If you believe your house or home has an infestation, it is important to try and stop rats from climbing up drain pipes. Rat infestations can develop quickly and therefore it is essential to contact a professional drainage company to ensure the rats are gone, and won’t be able to return.  At Maintain Drains, we offer professional rat removal services. With no call-out fee and competitive pricing, we will work to remove rats from your drains as quickly as possible. All our vans are equipped using the latest drainage technology and we are prepared to solve any drainage problem in either a domestic or commercial property. You can contact our friendly team 24 hours a day, 7 days a week.

1. Where are the rats in your drains coming from?

The first step to stop rats climbing up drain pipes is to identify where they come from. Rats could enter your drains through cracks in the pipes or root ingress. Rats are good climbers and can navigate through small pipes and other spaces easily. One way we identify rat entry points is by using a CCTV drain survey. Using the latest technology, our cameras can go through your drains and give a clear image of any animals in the drain, and spot where they may have come from. CCTV drain surveys are one of the quickest and most cost-effective methods to find problems hidden in your drainage system.

2. Fixing rat entry points

Following identification of the entry points, it is important to repair them quickly to prevent more animals from entering the drainage system. How we repair your drain or pipe will depend on the issue. We offer root removal services to repair any tree roots that may have obstructed the pipe. Our no-dig drain relining services can also fix any cracks, holes or similar damage to your drains and pipes without excavation.

3. Future preventative measures

In order to ensure the protection and safety of both your drains and home, we can offer future preventative measures to put rats off for good. We can do this by installing flaps, valves and guards in your drainage system to prevent the rodent’s ability to enter the system.  Our friendly team of drainage experts can also offer you advice and tips on how you can prevent rats from entering your drains again in the future. rat in drain services poole


What should I do if I find a rat in my shower drain?

Discovering a rat in your shower drain can be alarming, but it’s essential to handle the situation promptly and safely. Start by ensuring that the area is secure and keeping pets and children away. Avoid attempting to handle the rat yourself, as it may carry diseases or bite when cornered. Instead, contact a professional service immediately to safely remove the rat and assess your home for potential entry points.

How can I prevent rats from entering my drains?

Preventing rats from entering your drains requires a combination of proactive measures to deter them and seal potential entry points. Start by installing drain covers or grates over all drains, including shower drains, to prevent rats from gaining access. Additionally, consider implementing rodent-proofing measures such as sealing cracks and gaps in walls and floors, repairing damaged pipes, and keeping outdoor areas clean and clutter-free.

What options are available for protecting pipes from rats?

Protecting pipes from rats involves implementing physical barriers and deterrents to prevent them from accessing and damaging the pipes. Options include installing metal mesh or wire screens over pipe openings to prevent rats from entering, applying rodent-proof sealant or expanding foam to seal gaps and cracks, and using rat-repellent devices or baits near vulnerable areas.

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