Our Ratbarrier Non Return Valve provide a permanent solution to rats entering sewers and drains. Our Green solution will ensure rats are kept out of your home or business.
Our Drain Flap is a cost effective alternative to expensive repairs to sewers or where drain surveys are unable to find an access point.

Protect Your Home And Business

Our Rat Flap non return valve has been designed to be easily installed in sewers and drains. It will fit all types of sewers including Clay, Ceramic and Plastic. 


316 Marine Stainless Steel Rat Flaps

Both Type 304 and Type 316 stainless steel belong to the 300 series of stainless steel alloys (austenitic alloys) that are specifically formulated for forming and drawing stainless steel sinks. Stainless Steel

Of the wide range of stainless steels on the market, both Type 304 and Type 316 stainless steel have strength, workability and are corrosion resistance, the key difference is that 316 stainless steel incorporates about 2 to 3 percent molybdenum. The addition increases corrosion resistance, particularly against chlorides and other industrial solvents, also making it a better selection for severe outdoor environments and high exposure applications. For our Rat Flap non return valves we only use 316L grade stainless steel. 

Broken Sewer Pipes And Rats

The Ratbarrier is a reliable solution to rat problems – We design and build non-return valves that act as a rat blocker for drains. They can conveniently be fitted into your current pipework from either below or above ground. These valves minimise the chance of rats entering your draining system as the cap only moves with the exiting waste. We also offer CCTV drain surveys to identify damaged pipework and locate areas that can be easily infiltrated by a rat.

Rat protection using the RATBARRIER easy installation.

RatBarrier FAQ

The drainage pipes for my house are deep. Is there a way to install my Ratbarrier without climbing down into the hole?

So you can stay clean and safe on the surface during installation, we have a 1m mounting pole which you can purchase with the RatBarrier. We even have extensions available for those whose pipes are even deeper.

How easy is the RatBarrier to install?

The RatBarrier is very easy to install, no special tools are required they are simply push fit. 

Should a sewer survey via drain cameras be carried out?

We would always recommend that a drain survey is carried out and identification of potential breakages located. Placement of valves can be used on a permanent basis so long as they are checked once per year to ensure smooth operation.

Can you install valves for me?

We are based in Swindon Wiltshire and we can install valves throughout the Wiltshire, Gloucestershire and Oxfordshire areas. We also have a network of installers who can install valves for you.

Can you offer bulk discounts?

Yes we are able to offer discounts for volume orders, please contact us and we can provide a quotation. 

Does my water authority deal with Rats?

Most Water companies will not assist with rat issues but they do provide guidance please see some links below.

Thames Water Rats

Southern Water

Wessex Water

We work with a network of installers so give us a call and we maybe able to help.


Hear Scratching In Walls and Ceilings? The RatBarrier could be the solution!

If you are hearing noises in your walls and ceiling it is more than likely rats are gaining access to your property via a hole in a wall or via a broken or chewed sewer pipe. The RatBarrier can resolve this problem by acting as a one way flap. This rat flap allows your waste to flow but prevents rats gaining access. 

Rats In Homes

The most common reason for rats entering homes is due to broken or collapsed sewer pipes. Most pipes on new buildings nowadays are made from plastic and as such can be chewed. We also find the older ceramic and clay sewer pipes can also collapse which in turn allows access to rats. Fitting a valve will ensure that this cannot happen.  

Rats In Business Premises

Rats are a big problem for businesses due to the fact they carry disease and as such are not tolerated in food and industrial premises. Rodents chewing cables can also cause a fire risk and fitting a valve to sewer pipes will reduce this risk. 

Clean. Green and Long Lasting Design

We would love to hear from you, if you have any questions regarding the RatBarrier please contact us via the Contact Page on this website. 

Buy The RatBarrier NowContact RatBarrier

Tel: 01793 630768

Customer Service

27 Iffley Road, Swindon
Wiltshire SN2 1DL

Get In Touch With Ratbarrier

We would love to hear from you, if you require advice please contact us.

Contact Ratbarrier

STOPPING Rats In There Tracks