Why Rats Keep Coming Back – And How to Prevent Re-Infestations

Many homeowners in Watford deal with rats more than once, even after attempting treatments. At Watford Pest Exterminators, we provide rat extermination services in Watford starting from £260, designed not just to remove rats but also to stop them from coming back. Here’s why infestations return — and how to prevent them.

Why Rats Keep Coming Back

• Unsealed entry points: Rats exploit tiny gaps in walls, roofs, and drains. If these aren’t blocked, they’ll return.
• Food sources: Accessible rubbish bins, pet food, or compost heaps attract rats back to your property.
• Incomplete treatments: DIY traps or poisons may kill a few rats but rarely eliminate entire colonies.
• Drainage systems: Rats often re-enter through sewers and damaged pipes if no blockers are installed.
• Neighbourhood infestations: Rats spread easily between homes, especially in terraced housing.

How to Prevent Rat Re-Infestations

• Seal entry points: Fill holes in walls, brickwork, and around pipes with metal or cement.
• Secure bins: Keep rubbish in sealed containers with tight-fitting lids.
• Install drain guards: Fit one-way valves or rat blockers in your drainage system.
• Remove clutter: Clear gardens, sheds, and lofts of stored items where rats could nest.
• Regular inspections: Check lofts, basements, and kitchens for signs of re-entry.

Why Professional Proofing Works Best

Professional exterminators don’t just remove rats — we also provide proofing solutions to stop them returning. This includes identifying weak points around your home, securing drains, and advising on long-term prevention.

FAQs – Preventing Rat Re-Infestations

Q1: Why do rats keep returning to my property?
Usually because entry points haven’t been sealed or food sources remain available.

Q2: Can sealing holes really stop rats?
Yes, rats need physical access, so proofing is the most effective long-term solution.

Q3: Do rats return to the same nests?
Yes, if entry points aren’t blocked, they will revisit old nesting sites.

Q4: Are drains a common problem?
Yes, many infestations start through damaged drains or sewers.

Q5: Can professional pest control guarantee rats won’t return?
We can’t control the whole neighbourhood, but professional proofing greatly reduces the risk.

Q6: How often should I inspect my property?
We recommend seasonal checks, especially before winter when rats look for warmth.

Q7: Will removing food waste help?
Yes, secure bins and remove food sources to make your property less attractive to rats.