Pillar Pest Control

Pillar Pest Control

House Spiders

House Spiders: Learn Lifespan & Behaviour

House spiders, those intricate architects of silken marvels, have long shared our living spaces. These eight-legged creatures raise intriguing questions about their lifespans and existence within the nooks and crannies of our homes. Just how long do these arachnid inhabitants live? This article takes a journey into the world of house spiders, unravelling the mysteries of their lifespans, their behaviour, and the factors that influence their time among us.

1.     An Unseen World in Our Midst:

House spiders, commonly referred to as domestic spiders, inhabit the corners, ceilings, and hidden places of our homes. These skilled web weavers construct intricate traps to ensnare their prey, creating a world that often goes unnoticed by human eyes.

2.     Stages of a House Spider’s Life:

A house spider’s life consists of distinct stages: egg, spiderling (juvenile spider), sub-adult, and adult. The length of time spent in each stage contributes to the overall lifespan. Factors such as temperature, humidity, and access to food play a crucial role in determining the duration of these life stages.

House Spiders

3.     General Lifespan of House Spiders:

On average, the lifespan of a house spider can range from several months to a few years. However, most house spiders typically live for about one to two years. The specific duration varies depending on the species and the conditions in which they live.

4.     Species Variation in Lifespan:

The lifespan of house spiders is influenced by the species to which they belong. For instance, the common house spider (Parasteatoda tepidariorum) usually lives for about a year, while some other species like the giant house spider (Eratigena atrica) can survive for several years under favourable circumstances.

5.     The Impact of Environment:

Environmental conditions play a significant role in the lifespan of house spiders. Favourable conditions, such as stable indoor temperatures and adequate humidity levels, can extend their lives. On the other hand, harsh conditions, including extreme temperatures and low humidity, can lead to shorter lifespans.

6.     Access to Food Sources:

The availability of food is a critical factor in a house spider’s lifespan. House spiders primarily feed on insects that get trapped in their webs. An environment with a thriving insect population can sustain these arachnids for an extended period, contributing to their longevity.

7.     Mating and Reproduction:

Mating is a significant event in the life of a house spider. After mating, female house spiders often focus on egg-laying and nurturing their offspring. Male spiders typically have shorter lifespans than females due to the energy expended during mating and their increased vulnerability to predators.

8.     Strategies for Longevity:

House spiders employ various strategies to maximize their lifespans. Some species seek shelter in darker, less visible areas to evade predators and conserve energy. Others construct their webs strategically to increase their chances of capturing prey, thereby ensuring a steady food supply.

9.     The Ecological Role of House Spiders:

Despite our occasional discomfort with their presence, house spiders serve a vital ecological role. Their webs act as natural traps, capturing insects like flies and mosquitoes, which can contribute to the overall reduction of insect populations within our homes.

Role of House Spiders

10. Living in Harmony with House Spiders:

Rather than regarding house spiders as mere intruders, it’s worth recognizing their contributions. Engaging in regular cleaning and keeping clutter to a minimum can discourage spiders from spinning webs in unwanted areas. If relocation becomes necessary, gently guiding them outdoors can maintain the delicate balance of indoor ecosystems.


Can house spiders be harmful to humans?

The majority of house spiders are harmless to humans and are more interested in catching insects for sustenance. While some species possess venom, their bites are rarely dangerous to humans and usually result in minor discomfort.

Do house spiders require water for survival?

House spiders acquire the moisture they need from their prey, eliminating the need for direct access to water sources. However, maintaining an environment with adequate humidity can contribute to their well-being.

Can I keep house spiders as pets?

House spiders can be kept as pets, although their care requirements vary based on the species. Researching the specific needs of the spider you intend to keep is essential. Provide an appropriate enclosure, suitable food, and a comfortable living environment.

How can I discourage house spiders from building webs indoors?

Regular cleaning and decluttering can discourage house spiders from building webs indoors. Removing potential hiding spots and maintaining a clean environment can deter these arachnids from taking up residence in unwanted areas.

Learn in detail, How to get spiders out of your car.


The enigmatic world of house spiders invites us to contemplate their lifespans and the intricacies of their existence. As we learn about their behaviours, lifecycles, and roles in our living spaces, we gain a deeper appreciation for these architectural marvels. By understanding the factors that influence their lifespans and coexisting with them, we can cultivate a harmonious relationship with these unsung inhabitants of our homes.

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