Spiders on Balconies and Windows

Balconies and windows catch insects, and spiders follow.

The short answer

Lights, plants and open windows attract insects that spiders feed on. Reduce webs by switching off or moving lights, cleaning balcony corners and window tracks, pruning plants near the building and using screens. Remove webs and egg sacs regularly and seal frame gaps.

Why they gather

• Insects attracted by lights.
• Sheltered corners and tracks.
• Plants against the wall.

Reduce them

1. Clean corners and tracks weekly.
2. Use warm bulbs and reduce lighting.
3. Trim plants.
4. Fit screens and seal gaps.

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

Are balcony spiders harmful?

Usually not.

Do pots attract them?

They provide shelter.

Can I spray?

Not very effective.

How often to clean?

Weekly in busy seasons.

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