How to get rid of rats under decking

We've spotted a rat going under our decking a couple of times now. We'd rather sort it ourselves before calling pest control. Is that realistic, and what bait actually works?

Asked by Sarath on 26th Apr 2026
Expert Trade Answers
"Rats need and want only 3 things ,
Water
Food
Harbourage

Look.to remove any of these , unfortunately rats love decking as its a safe space for them

Rodenticides are not a great way to go if you dont know what you are doing.

We personally use traps first as using baits run the risk.of secondary poisoning to non target species.

If rats are going under the decking look around the perimeter for holes apx the size of a tin of beans .If rats have been there a while a clear path should be noticeable (rat run).

Don't fall for the miracle cure of ultrasonic as they dont work.

If you do use baits they have to be contained within tamper proof boxes."
Answered on 26th Apr 2026 - Member since Oct 2025 - report
"Hi Sarah, firstly the bait you can buy is not effective as it is not for professional use. Secondly, you need an expect like us proofing specialists to come and do a survey to see where and what's attracting them in your property. Bait alone won't solve the problem. The more you try to do it yourself the more the damage to your property. Thanks"
Answered on 26th Apr 2026 - Member since Jun 2023 - report
"Hi
You could put mesh wire around the base and dig it into the ground a fair way to prevent them digging"
Answered on 26th Apr 2026 - Member since Mar 2025 - report
"You need to find where they are coming from. Traps and bait may solve your problem initially but without knowing how theyve got there you could have the same problem reoccurring. Chances are the rat you saw going under your decking is going back where he came out from."
Answered on 26th Apr 2026 - Member since Apr 2026 - report
Find Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
Ask a Trade
Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.
Ask your question
Ask a Trade

Are you looking for advice on a DIY project or have a question for our tradespeople?

We'll email your question to tradespeople who are skilled in your chosen category.

Your question will be made public - please do not include any personal details.

{{ first(ask.errors)[0] }}

By continuing you agree to the Community Guidelines.

Report Content

{{ first(reportForm.errors) }}

Thank you

Your report has been created and will be investigated shortly.

Ready to get a price for your home improvement project?
Get started

Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year