Black House (Window) Spider Cobwebs

One of the worst offending breeds for cobwebs is the Black House Spider Ixeuticus robustus, also known as the Window Spider, or also known as Badumna insignis which describes those in bushland areas. The Ixeuticus spider family loves to build its nest in the nooks and crannies around our homes. An average Melbourne household can be the home of hundreds of these 8-legged creatures.


The Black House Spider builds a thick, sticky bluish cobweb that causes an unsightly mess.  The cobweb build up can be so thick that it may attract other spiders and together it combines into a breeding ground where many arachnids can thrive and the strongest compete for territory. The females lay egg sacs and if left untouched the entire silky mess can house third and forth generations of Black House Spiders. What was originally the cobweb nest of one active adult can become the home for hundreds of smaller 8-legged critters. The nesting space becomes so overrun that most of the spiders are forced to move and they can find their way into your bedrooms via the walls and cavities.



Would you invite these creepy little guys into your home?

The largest female Window Spiders may grow up to 23mm and can lay up to 3 or 4 egg sacs in a year producing up to approximately 300 spiderlings. The spiderlings will stay in the mother's nest until they're about 2 years old.



Black House Spiders Attract White Tail Spiders
Adult and young Black House Spiders are one of the favourite preys of White Tail Spiders. Removing the cobwebs of Black House Spiders will actually deter and control the White Tail Spiders. 

Get them removed ...

The build up of cobwebs around your home can be a pain in the neck and Grayson's is well equipped to put your mind at rest.  Two-storey work is our specialty and we can remove even the most difficult cobwebs.

Regular Cobweb Cleaning can actually kill off the spiders because without the webs they can no longer feed. Old cobwebs collect dust and can leave stains on your eaves, gutters and fascia boards.