What to Expect From Your Pest Control Treatment: A Video Guide From Crest
Most people book pest control with one question in mind: how soon will the bugs be gone? The honest answer depends on the pest. Ants usually settle down in 7 to 10 days. German cockroaches take 2 to 4 weeks. Mosquitoes take a month or more. And for a few days after some treatments, you may actually see more bugs, not fewer.
That can feel backwards if nobody warns you. So Jake, one of the owners of Crest Pest Control, recorded a short video for each of our most common treatments. Each one covers what our technician does, what you will see afterward, and when to call us back. This post collects all seven in one place, with the key points written out under each video.
One thing holds across every section: if it has been longer than the timeline we gave you and you are still seeing activity, call, email or text our office and we will send someone back out. On a Pest Prevention Plan, those return visits are free.
Quick reference: how long each treatment takes to work
Ants: 7 to 10 days. Late summer colonies may need a follow-up.
Rodent bait stations: ongoing. The goal is a smaller population, not zero rodents outside.
Spiders: more spiders for a few days, then a drop-off within about a week.
Mosquitoes: 30 to 45 days for a 75 to 80% reduction.
Fleas: 2 to 4 weeks, with a built-in follow-up at 14 days.
German cockroaches: 2 to 4 weeks, with at least two visits about 7 days apart.
American and Oriental cockroaches: 7 to 10 days.
Ant Treatment: What We Do and What to Expect
What we do
Every ant treatment starts with an inspection. Our technician looks for where the ants are coming from and how they are getting inside your home or business.
In most cases we then use what is called a non-repellent. Ants cannot detect it, so they walk right through it while they are out looking for food and water. They carry it back to the colony and pass it to other ants as they mingle. Over time that sets off a chain reaction that takes out the whole colony, not just the trail on your counter.
What to expect
Plan on about 7 to 10 days for the product to take full effect. That wait is on purpose. As Jake puts it, "If we use a product that kills ants too quickly, it's actually not good, cuz then we're just killing the ants you see, we're not killing the actual source or the colony."
While you wait:
Do wipe up ants with an ammonia-based cleaner like Windex. It erases their scent trails and cuts down what you see.
Don't spray store-bought products like Raid. They work against the treatment we just put down.
Most of the time that is the end of it. The exception is late season, July through September, when ant colonies are at their peak and a follow-up visit may be needed. To keep it from happening again, our Pest Prevention Plan treats more often, starting in spring, so the population never gets out of hand.
Rodent Bait Stations: What We Do and What to Expect
What we do
For exterior rodent prevention, we set up rodent bait stations around your property. They are small, usually black boxes, locked and secured with a special key. That lock is what keeps pets, kids and larger animals out, so only rodents can get to the bait.
We place the stations where we see the most rodent activity. Each time we come back to replenish them, we check how activity is trending and move or adjust stations as needed. Rodents eat the bait, return to their nest and die within a few days.
What to expect
Be ready for this part: the goal of bait stations is not to kill every rodent in the area. You may still see rodents outside, especially if your home backs up to hills, palm trees or other spots where rodents live.
What the stations do is shrink the population as much as possible so rodents are not getting into your home or causing structural damage. If we have been out a few times and activity has not changed, let us know. We will come back for a complimentary visit, reinspect and figure out what is going on.
Spider Treatment: What We Do and What to Expect
Spiders are Jake's least favorite pest, and our spider treatment has three parts.
What we do
Inspection. We look for what is attracting spiders, where the hot spots are, and where we need to be extra careful. That means areas where kids and pets spend time, fruit and vegetable gardens, carports and similar spots.
De-webbing. We remove webs around doorways, windows and high-visibility eaves. We also clear the places you touch or use every day, like trash can handles and patio furniture.
Liquid residual. We apply a product that stays active for a few months. Spiders that walk across treated areas pick it up and die.
What to expect
Jake is upfront about this one: "I wish I could be telling you that we're going to do a treatment and you'll never see a spider again or a spider web. Unfortunately, that isn't the case, especially in Southern California during the hotter months like summer and fall."
The first treatment flushes spiders out, so you may see more of them for a few days. Those spiders are dying and are nothing to worry about. After about a week, activity should taper off, with fewer spiders and fewer webs.
It will not stay that way on its own. Eggs hatch nearby, and wind blows spiders over from neighboring properties. That is why we always recommend a Pest Prevention Plan for spiders. Each treatment in the plan brings the numbers down further.
If it has been 7 to 10 days and you are still seeing a lot of spiders, especially inside, let us know. We will come back out free of charge.
Mosquito Treatment: What We Do and What to Expect
What we do
Our mosquito treatment attacks them two ways.
1. A spray for adult mosquitoes. We treat bushy areas, which is where adult mosquitoes rest during the day before they come out at night to bite. The catch is that spraying alone does not last. We can spray on Wednesday and kill every adult in your bushes, and on Thursday the mosquitoes from your neighbor's yard fly over.
2. In2Care buckets for the next generation. These target female mosquitoes that lay eggs in them, and those eggs do not hatch. The females then fly off to other standing water nearby and carry the product with them, which stops neighboring mosquitoes from hatching too.
Because the buckets work on the next generation, timing matters. If you live in a mosquito-heavy area, start as early as you can. We recommend March or April for the best results.
What to expect
Mosquitoes may be the hardest pest there is to control. They breed fast, they have no central nest to knock out, and they travel long distances from where they hatch. So we cannot promise you will never see one again.
What we aim for is a 75 to 80% drop in mosquitoes on your property, so you can use your yard without getting eaten alive. Expect that to take about 30 to 45 days. If we have been out several times and nothing has changed, tell us and we may schedule another complimentary visit.
Flea Treatment: What We Do and What to Expect
How to prepare
With fleas, prep decides the outcome. We email a full one-page prep sheet before your service. The three biggest items:
Get your pets treated by your vet at the same time. If they are not treated, Jake says, "it doesn't matter what we do inside and outside your house, you're going to have the same problem."
Wash bedding and linens, then dry them on high heat. The heat kills fleas and eggs.
Vacuum before and after the treatment. The vibration helps eggs hatch, and adult fleas are much easier to kill than eggs.
What we do
We use a combination of products that kill adult fleas and stop them from reproducing. We focus on high-activity areas: usually carpet indoors, and long grass or shaded spots where pets hang out outdoors.
What to expect
Fleas are one of the tougher pests. Their exoskeleton is hard for most products to get through, and they breed quickly. The first treatment takes care of the adults, but eggs remain. Over the next 2 to 4 weeks you may see dying fleas or newly hatched ones.
That is why every flea service includes a follow-up treatment 14 days later, to catch what hatched in between. If it has been about a week since that second visit and you still see fleas, let us know and we will do what it takes to get the problem under control.
German Cockroach Treatment: What We Do and What to Expect
How to prepare
Prep is "super, super, super important" for German cockroaches. When it is done right, our technician can treat every area that might be affected, which is the fastest path to roaches gone. When it is skipped, it either takes longer or it limits how well the treatment works. We email you a full prep sheet. The key steps:
Empty your kitchen and bathroom cabinets. This one matters most.
If you can, pull appliances away from the walls and unplug them.
Remove electrical outlet covers.
What we do
Our German cockroach treatment takes at least two visits, about 7 days apart, and sometimes more if the infestation is severe. Each time we use a combination of products in the kitchen, bathroom and any other hard-hit areas.
The products are designed for roaches to pick up and carry back to the colony. That matters because for every German roach you see, there may be 20, 30 or 50 more hiding in wall voids and appliances.
What to expect
German roaches multiply fast. A single one can produce 250 to 300 babies in a year, and they hide deep where you cannot reach them. Wiping out the whole colony takes about 2 to 4 weeks.
During that window, and especially right after each visit, you may see more roaches. That is expected: they are dying. If you are still seeing them after 2 to 4 weeks, call us and we will schedule another follow-up.
American and Oriental Cockroach Treatment: What We Do and What to Expect
What we do
American and Oriental roaches are a different problem from German roaches. They come in from outside, through the sewer system, trash dumpsters and trash cans. So we start with an inspection to find the source and how they are getting into your home. That lets us build a full plan instead of chasing the one roach in the hallway.
The treatment uses a few products, mostly non-repellents. Roaches walk over them without noticing. When they groom themselves they swallow the product, and they pass it to other roaches. The goal is the whole colony, not just the one or two you saw.
Depending on your home, we may also offer sealing to close the gaps they use, or at minimum give you recommendations on what to seal.
What to expect
It takes some time for roaches to pick up the product, groom and carry it back, so plan on 7 to 10 days for full effect. If you are still seeing them after a week or two, let us know. We will come back out for a complimentary visit.
Frequently asked questions
Why am I seeing more bugs after pest control?
With spiders and German cockroaches especially, treatment flushes pests out of hiding. The ones you see in the days after are dying. It usually settles down within a week for spiders and within 2 to 4 weeks for German roaches.
Can I use Raid or other sprays while I wait?
No. Store-bought sprays counteract the products we use. For ants, wipe trails with an ammonia-based cleaner like Windex instead.
Are rodent bait stations safe for my pets and kids?
The stations are locked boxes that open only with a special key, built so only rodents can get to the bait.
What if the treatment doesn't work?
If you are still seeing activity after the timeline for your pest, contact our office by phone, email or text. We will send someone back out, and in many cases that visit is complimentary.
When should I start mosquito service?
March or April. Our In2Care buckets target the next generation of mosquitoes, so an early start gives the best results.
Ready to get started?
Every Crest treatment comes with straight talk about timelines, and we come back if the problem does not go away. If you are in Orange County or the Inland Empire and dealing with any of the pests above, call us at (949) 943-5000 or request your free quote. Want to keep pests from coming back at all? Take a look at our Pest Prevention Plans.