After roach extermination, the last thing you expect to see is another roach crawling around your kitchen floor or counter.

Technically it is possible to see roaches after professional treatment. You can hire the best pest management services to handle your roach infestation problem, but the truth is, they can still come back!

Killing the roaches is just one part of the pest control plan. A professional pest control company should also include preventative measures to ensure a reinfestation does not occur.

Do roaches come back after extermination

Yes, you can still see cockroaches after extermination because of the following reasons:

  • Search for food: once you treat your home, the roaches will be forced out of their hiding places in search of food, water or new habitat. You may see the pests immediately or after a few days depending on the extermination method you use.
  • Roach eggs: if there are roach eggs during the treatment, you will likely see several baby roaches after a few weeks once they hatch. However, there is no reason to worry because the hungry nymphs will feed on anything, including bait. The nymphs may also feed on the dead cockroaches who are already poisoned, thus poisoning themselves.
  • Newcomers from the outdoors: most of the roaches you see in your home may come from the outside. Your neighbours, yard and trash can may be supplying your home with new cockroaches after extermination. For this reason, the pest management company you hire should come up with measures to block cockroaches from the outdoors from accessing your home.
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What Should I Expect From Pest Control Services?

Once you hire pest control technicians, it means you are ready to face your roach problem. Here is what to expect from the professionals:

  • The experts will use the right extermination method depending on the level of infestation.
  • Also, the pest control professional will advise you on how to handle yourself during the extermination.
  • After the treatment, the pest control technicians should lay baits and traps to catch the remaining roaches. The baits can be excellent solutions in-between visits.

While most exterminations become successful after the initial treatment, about 5% of roach treatment jobs require follow-up treatment, especially for a severe infestation.

Things To Do After Pest Control Treatment

Once you eliminate roaches in your home, do not be surprised to see more cockroaches after a few days or weeks. These pests will look for new habitats, food and water, so it is normal to see them after pest control sprays.

Knowing what to do after the treatment is essential to avoid recreating the problem or harming yourself. Below are some of the things you should do after a cockroach treatment.

Avoid Cleaning Up Immediately

If you are one of those people who are addicted to cleaning, you might want to avoid cleaning immediately after a roach treatment. This is because you might end up removing the chemicals and lessening their effectiveness.

It is advisable to wait for a few days or weeks before you start cleaning all the mess created during the extermination.

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Eliminate All Potential Attractions

Roaches are attracted to food and water sources as well as a favourable habitat. To avoid a potential reinfestation, you need to eliminate everything that may attract these insects.

Ensure there are no crumbs or any food droppings in your home, especially in your kitchen and pantry.

Repair Leaks Immediately

If you have any leaking pipes in your home, you should repair them immediately. Roaches need water to survive, and with a leaking pipe, you will be supplying them with enough water to sustain their entire generation. Ensure there are no leaks in the kitchen, bathroom and laundry room to limit a roach reinfestation.

Do Not Visit Treated Areas

Once your home has been treated, you should avoid going inside until the pest control spray dries up. This is usually about one hour. Also, prevent your kids and pets from visiting the treated area.

The chemicals used may be harmful to your health, which is why you should avoid the area until it is safe to re-enter. More so, before you touch any treated surface, make sure you put on protective gloves.

Continue Inspecting for Roaches

After treatment, some roaches will still find places to hide within the house. Check out all potential roach holdouts to ensure no pests have been left behind.

The roaches should die gradually within the next few days, but if they don’t, you should report to your exterminator and arrange for a follow-up.

Caution: Make sure you clean any items, especially toys that were left uncovered before using them. Also, discard any food that may have been exposed to the chemicals, whether organic or inorganic.

Continue Inspecting for Roaches

Why Do Roaches Keep Coming Back After Pest Control Treatment?

If you have tried pest control sprays, bait stations, vacuuming and steam cleaning but you are still seeing roaches, you need to figure out what you are doing wrong.

Even if your pest problem is severe, a secondary treatment should eliminate any roaches missed during the first visit.

Some of the reasons why roaches keep coming back after treatment include:

  • Access to water. Leaking pipes, damp areas and splashed water in your home will provide a continuous supply of water to roaches. Eliminating all water sources will help solve your pest problems.
  • Access to food. Crumbs can provide enough food for several cockroaches to feast on for days. To keep the pests away, you need to make sure no crumbs are left in your kitchen, dining room and living room.
  • Hiding places. Tiny crevices in your walls, cupboards, and pipes provide ample hiding places for roaches. Spraying pesticides along all potential entries and hideouts will help eliminate the cockroaches.
  • Clutter. Bugs are attracted to warm and comfortable areas. If you have heaps of unfolded clothes in your bedroom, you are providing comfortable shelter for these insects. Cockroaches also feed on paper glue, paper and cardboard. Keeping your house neat and organised is another way to keep these pests away.
Why do roaches keep coming back after pest control treatment

Can Roaches Survive After Pest Control Sprays?

The chances of roaches surviving after being sprayed are minimal. However, this depends on the type of pesticide or insecticide you use because some are more effective than others.

The neurotoxic compounds found in insecticides have a “knockdown” effect on pests. Roaches can either ingest the chemical or absorb it through their skin.

According to the Economic Entomology Journal, insecticides containing diazinon and bendiocarb as the active ingredients were ineffective in controlling a roach infestation. Roaches tend to form resistance to these insecticides, making them ineffective in combating an infestation.

Best pesticides to use

When looking for a pesticide, it is essential to check the packaging to know the active neurotoxic ingredient. Insecticides such as Alphacypermethrin, Diocacarn, and Cyphenothrin are excellent options as they are very effective and do not cause harm to humans.

You can also consider using non-repellent pesticides for better results as the pests cannot detect the treated zones.

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How Long Does It Take for Pest Control Spray To Work?

This depends on the effectiveness of the insecticide you use. Most pesticides and insecticides are slow-acting, which means you will start seeing dead cockroaches after several days.

Cockroaches can withstand treatment for days or weeks. Some roaches can even form resistance to the chemicals. So, you may need follow-up treatment to completely get rid of the pests, including their eggs and nymphs.

Does Spraying Bring Out Roaches Instantly?

This will depend on the type of insecticide you use. If the pesticide is highly effective, the roaches will start coming out after a few hours or days due to the negative effect of the chemicals.

Sometimes, it may take up to two weeks before you start seeing roaches.

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Tips for Finding the Right Pest Control Service Near Me

The pest control industry is full of many qualified pest exterminators, but finding the right fit is quite a hassle. You need to find a company dedicated to providing pest control solutions, but this may take some time.

The following tips will help you find a reliable pest control company to handle your roach infestation problem.

Tips for finding the right pest control service near me

Ask for Certifications

Any pest control company should have relevant certifications such as licences and insurance. Ask the professionals to provide you with copies of their certificates and verify whether they are authentic and up-to-date.

Hiring a company that does not have a proper licence may land you in serious trouble with the authorities.

Check Online Ratings and Reviews

Online reviews and ratings are an excellent place to start your search. A company with a good rating and many positive reviews is likely to be good at its job. However, too many positive reviews may be suspicious.

Besides reading the reviews, you should check how the company reacts. If the company reaches out to customers whose experience was not so good to rectify the problem, it shows that they care about their customers.

Ask Questions

Do not be afraid to ask any questions that may be nagging you. Ask as many questions as you want until you are satisfied. You can even request the company whether the products they intend to use are eco-friendly and safe for humans and pets.

A company that does not respond well to questions should not be considered.

Get Recommendations From Family and Friends

Asking for recommendations from family and friends is one of the best ways to find reliable pest control services.

If any of your family members, friends, or colleagues have had an infestation in the past, ask them about their experience with the exterminator they hired.

Get Several Quotes

Before hiring any pest control company, make sure you get several quotes to compare the prices first. Some companies tend to be costlier than others, and by comparing prices, you will be able to find a company that fits your budget.

However, price should not limit you because the best value is not always the cheapest. If need be, you can stretch your budget as long as you get value for your money.

Inquire About Their Warranties

You should also ask whether the company offers warranties for their services. Some pest control companies provide warranties if the first treatment does not work. So, you will get a free second visit if the infestation does not clear.

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FAQ’s

The average cost for a single roach treatment is approximately $150, ranging between $100 to $400.

If the infestation is severe, the price can be as high as $5,000 because the professional will require more time and resources.

Roaches can go without food for one month because they are cold-blooded insects.

However, they cannot live without water for more than one week. That is why you find these pests in humid areas such as basements and bathrooms.

If you eliminate both food and water after treatment, you may be able to get rid of the pests completely.

How Long Can Roaches Live Without Food and Water

Roaches tend to hide in warm places where they have access to food and water. Your kitchen should be the first place to look for roach nests, followed by the bathroom.

You can also find roach nests behind or inside appliances, tiny cracks or crevices, under furniture, inside cupboards, etc.

Cockroaches can remain active throughout the year as long as the indoor temperature is above 50 degrees.

However, these pests are more active during spring and summer when the weather is favorable and hibernate during the winter months.

What Time of the Year Are Cockroaches Most Active

Ben McInerney
Author: Ben McInerney - Ben is a qualified arborist with 15 plus years of industry experience in Arboriculture. He ran a successful tree service before turning to writing and publishing. Ben is dedicated to providing users with the most accurate up-to-date information on everything trees.