You may not know it, but pest control only lasts for a certain period. So it doesn’t guarantee that just because you did it once doesn’t mean pest infestation won’t happen again. It is because pest control lasts only for a certain period. Thus, there’s what we call “maintenance.”

Pest control lasts depending on the chemicals used. For example, the strongest treatment can last from 60 to 90 days. Meanwhile, the average length of mild pest control can last up to 3 weeks or 21 days. The length of time a pest control could last changes depending on the treatment used.

Just because it doesn’t last forever doesn’t mean that it is not effective. It means withdrawing current pests living at your home and preventing them from coming back. That does not mean they are gone forever. We do need them to balance the ecosystem but should never harm you.

How Long Does it Take For Pest Control to Work?

In most circumstances, pest control will begin once the exterminator finishes the entire treatment. However, the noticeable reduction in insect activity may happen after one to two days. It is when you would feel more confident and sure that you’re not living with pests under one roof anymore.

In some situations, you may notice a modest uptick in insect activity immediately following our initial treatment. It indicates that pesticides are effective. Remember, the type of pest you’re dealing with determines the specific duration of the pest treatment. The materials used also affect the long-term outcomes of pest control. 

With that said, let’s make a quick comparison between the longevity of insecticides. These are some of the most common pest treatments in the Bay Area.


Insecticides are common chemicals used to eliminate insects like ants, cockroaches, termites, and others. But how long does pest control last for each type of insect? The effectiveness of pesticides varies depending on the kind of pest treatment.

Liquid Insecticides

Most of the time, ants will go away instantly when treated with a liquid pesticide. Most liquid pesticides contain either deltamethrin or permethrin, which are best for pest treatments. These two substances are safe for people with asthma and during pregnancy as well. However, suppose the ants are still crawling around. In that case, it’s best to find their nest and destroy it immediately with a highly toxic liquid-form pesticide.

Solid Insecticides

If the ants remain lingering after two weeks, it’s time to switch from a liquid to a solid pest solution. Since ants can transport back to their nest and infect others, solid-form pest treatments give more long-lasting results. But note that it may take three weeks to ensure the efficacy of the solid-form pest treatment.

It’s best to employ a professional pest specialist if you can’t find the ants’ residence or if the colony is hidden inside the walls. Treatments used by most pest firms can last up to six weeks.

Cockroach Pest Control Treatment

Liquid, gel, and solid cockroach pest solutions are available for cockroaches. These pest solutions have the added benefit of affecting additional cockroaches via secondary transmission. When a cockroach consumes a pest treatment, any cockroach that comes into close touch with its saliva, feces, or carcass becomes contaminated.

So the question is, how long does it take to get rid of cockroaches? Most of the time, cockroach pest treatment for cockroaches is chemical-free. It can destroy cockroaches in all stages of development – from egg to adult. 

Termites Pest Control Treatments

The powder is the most common solution for termites pest control. But you’ll need to check on a solid or powder-based pest solution every four weeks if you’ve decided to use it. It may take a long time to complete, but it will ensure that your home is termite-free for a year. 

How Long Does Pest Control Take?

Pest control may take 30 minutes to 8 hours, depending on the methods used and materials applied. Certain pests take longer to eradicate than others, and some properties are larger and more difficult to service. The severity of pest infestation also affects the curing time. Thus, it varies from one case to another. 

How Often Should You Have Pest Control Come To Your House?

Depending on your previous treatment and pest species, you need to do pest control treatment at your home. It’s because some pests occur in different seasons. We recommend getting your house treated once every quarter or two to three months for routine pest control.

Pests don’t seem to take a break in California throughout the year. With the changing seasons, new pests are looking for safe locations to shack up, eat, and mate—and your home can provide the ideal environment for them to do so.

While professional pest control can help with an ongoing infestation, scheduling annual pest treatments can keep you protected and avoid the risk of DIY pest management. But how often should you have pest control done at your home? What bugs should you be concerned about during the different seasons in California?

Quarterly Pest Control

We recommend getting your home treated once every quarter or every two to three months for routine pest control. After a few months of general pest control, it can become ineffective, leaving your space vulnerable to invading pests.

Beware of Seasonal Pests

Pests from all over the world congregate in California every year. It is because of their specialized mating season or need for artificial shelters for food and survival. However, some pests are more likely to infest your home or company, depending on the weather. What are those? Let’s find out.

January Through March

Pests are on the lookout for warmth and readily available food supplies at the start of the year. Unfortunately, your property might become a shelter for chilly, hungry insects and pests if you don’t have professional pest control in place. 

Furthermore, when spring approaches, certain pests become more active as they look for new places to colonize with adjacent food sources. Some of the most common pests in these months are the following: 

April Through June

Pests in California establish their presence during the warmer weather. They can quickly get into your home if it isn’t safeguarded as they search for food sources to feed their colonies. These are some common pests from these months.

July Through September

July, August, and September are the hottest three months of the year. Thus, you need to continue providing the worst habitat and climate for a variety of pests. Many of the pests we saw in April and June are still alive and well, and their need to feed their colonies hasn’t abated. From July to September, we treat the following pests regularly:

October Through December

Temperatures begin to decrease again in the final three months of the year, signaling that bugs will start looking for a warm spot to spend the winter. However, drywood termites are still active in October and November, looking for any exposed wood to gnaw on. So, from October to December, these are some pests that may come into your home.

Year-Round Pests

Aside from the seasonal pests, there are a few exceptions that can penetrate your house. It includes the following pests.

Prevent Pests All Year Long With Expel Exterminators LLC

With so many pests attempting to break down your door throughout the year, our quarterly pest control services will help keep your house safe—no matter what pests are in season.

The pest control treatment is successful in getting rid of the pest. Give us a call now to learn more about our customized, pest control treatments designed specifically for your property type and region. Get a safe and effective pest control treatment for your home and your safety.

Expel Exterminators LLC

3622 Tuers Road San Jose, CA 95121

(408) 417-1545

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