Before Summer: Pest Checks to Do When You Service Your ACs

AC servicing time is a good moment for a pest check.

Small pests and birds use units for shelter.

The short answer

When servicing ACs, check outdoor units and ducts for bird nests, bee and wasp nests, rodents, cockroaches and droppings, inspect drain lines for blockages and mosquito breeding, and seal gaps around pipe holes. Ask technicians to report nests or droppings.

Check

1. Outdoor unit for nests and droppings.
2. Pipe holes and cable gaps.
3. Drain lines for blockages.
4. Covers for insect and bird entry.
5. Indoor unit areas for cockroaches or rodent signs.

Seal

• Gaps around pipe holes.
• Openings in ducts and shafts.

If nests are found

Don't switch on the unit, and call a professional.

When to call a professional

If the problem is widespread, keeps returning or you are unsure what you are dealing with, a professional inspection will save time and avoid wasted effort.

Frequently asked questions

Can birds damage units?

Yes, through nests and droppings.

Do drain pipes breed mosquitoes?

They can hold water.

Is mesh useful?

Fine mesh on openings helps.

Who removes nests?

A professional.

This guide is part of IPest's complete resource on pest control. For identification help, prevention and treatment options, see our full pest control guide for Bangalore.