Pest Control Myths in the UK: What Actually Works (And What Doesn't)

Search online for pest control advice and you'll find everything from peppermint oil to ultrasonic plug-ins promising to solve rat or mouse problems overnight.

As a local pest control company covering Hertford, Ware, Royston and surrounding villages, we're often called after these "quick fixes" haven't worked.

So let's clear it up.

No scare tactics. No gimmicks. Just honest advice from someone who deals with this every day.

Do Home Remedies Get Rid of Rats and Mice?

Short answer: rarely.

Most DIY remedies might deter pests temporarily, but they do not eliminate an established infestation.

Rodents stay where there is:

- Shelter

- Warmth

- A reliable food source

- Safe access routes

Unless those factors are properly addressed, the problem continues.

Common Pest Control Myths (And the Truth Behind Them)

Myth 1

Does Peppermint Oil Get Rid of Mice?

Peppermint oil is one of the most commonly suggested "natural" mouse repellents.

The reality?

It may make an area smell pleasant for a short time, but it will not remove a nest or stop breeding.

If mice are settled in your loft or cavity walls, a scent alone won't evict them. Proper treatment and proofing is what solves the issue long term.

Myth 2

Will a Cat Prevent Rats or Mice?

We attend plenty of properties with cats - and rodents.

While some cats hunt, many domestic cats do not actively control infestations. Even a good hunter won't:

- Access wall cavities

- Remove hidden nests

- Stop rats travelling through drains

A cat is not a pest control strategy.

Myth 3

Does Bleach Down the Drain Kill Rats?

No.

Rats living in drainage systems are usually located:

- In damaged pipework

- In redundant or broken drains

- Beneath floors or within sewer connections

Bleach poured down a sink or toilet doesn't travel far enough or remain concentrated enough to solve the problem.

If rats are entering from drains, the correct solution is often investigation, sometimes a CCTV drain survey, and repairing the defect - not pouring chemicals down the plughole.

Myth 4

Do Ultrasonic Pest Repellers Work?

Ultrasonic plug-ins claim to emit high-frequency sounds that repel rodents.

In real domestic environments:

- Furniture blocks sound waves

- Rodents quickly adapt

- Infestations continue

If they worked consistently, professional pest controllers would use them instead of traditional methods. We don't - because they don't reliably solve infestations.

Myth 5

If I've Seen One Rat, Is There Only One?

Highly unlikely.

Rats are cautious animals that travel established routes between harbourage and food sources. If you've seen one, there's often more behind the scenes.

Early intervention is always easier - and more cost-effective - than waiting.

Pest Control Advice That Actually Works

Not all traditional advice is wrong. Some measures genuinely help.

1 -

Sealing Entry Points (Proofing)

This is one of the most effective long-term solutions.

Mice can squeeze through gaps as small as 6–7mm. Common entry points include:

- Gaps around pipework

- Air bricks

- Damaged brickwork

- Broken drain covers

Professional pest control isn't just about treatment - it's about preventing re-entry.

Control plus proofing equals a proper solution.

2 -

Proper Food Storage

Accessible food sustains infestations.

We regularly trace problems back to:

- Pet food left out overnight

- Bird seed stored in sheds

- Poorly sealed bins

Good housekeeping alone won't eliminate an established infestation, but it absolutely reduces attraction and supports treatment.

3 -

Leaving Wasp Nests Alone Until Treated

Attempting to spray, block or knock down a wasp nest can:

- Agitate the colony

- Increase aggression

- Push wasps into loft spaces or wall voids

If a nest needs treating, it should be done safely and properly.

Why Pest Control Myths Persist

Pest problems are stressful.

When you hear scratching in the loft at night or see a rat in the garden, it's natural to try whatever the internet suggests.

The issue is this: pests respond to biology, access points and structure, not trends.

Quick fixes rarely fix anything. In many cases, they simply delay proper treatment while the infestation becomes more established.

Why We Know What Works (And What Doesn't)

Over the years, we've attended hundreds of rodent, wasp and drain-related callouts across Hertford, Ware, Royston and the surrounding villages.

In many cases, home remedies had already been tried first , peppermint oil in lofts, bleach down drains, plug-in devices in kitchens.

The outcome is usually the same: the underlying issue hasn't been addressed.

Most infestations come down to one of three things:

- Unsealed access points

- Drainage defects

- Available food sources

That's not theory, that's experience.

We also carry out ongoing pest control and reactive callouts for local managing agents, landlords and property managers, where consistent, compliant and properly documented treatment is essential.

When you're responsible for multiple properties, guesswork isn't an option and neither are internet myths.

That same structured, no-nonsense approach is what we bring to every domestic customer too.

Professional Pest Control in Hertford, Ware, Broxbourne, Cheshunt, Royston, Hertfordshire, North London, East London, West London & Central London

At Bespoke Pest Control, the approach is straightforward:

- Identify the source of the infestation

- Provide honest advice

- Apply appropriate treatment

- Advise on proofing and prevention

No unnecessary contracts.

No scare tactics.

No national call centre.

Just experienced, local pest control backed by industry accreditation and decades in the trade.

Final Advice

If you're unsure whether a home remedy will work, ask.

Sometimes traditional advice has a bit of logic behind it.

But when it comes to rats, mice, wasps or drainage issues, proper diagnosis and treatment will always outperform guesswork.