How to Get Rid of Fleas in the House: A Step-by-Step Guide That Actually Works

July 27, 2025

If you’ve found even one flea in the house, it’s easy to feel like things could spiral fast. They show up small, but they spread quickly and don’t go away on their own. It can feel like a lot, but with the right steps, you can get them out and keep them from coming back.

This guide walks you through how to get rid of fleas in the house, using a mix of simple home methods and real-world advice. The process takes some effort, and it’s not always straightforward. If you’re tired of trying things that don’t work or just want it handled properly from the start, calling in help is always an option. At Alta Pest Control, we help people take their homes back every day, and we do it in a way that’s safe, fast, and clear from the start.

What You’ll Need to Get Started

Before you start dealing with fleas, it’s worth having a few basics ready. They don’t have to be anything fancy, just the things that make the job easier and more effective.

1. Vacuum Cleaner

A good vacuum will do a lot of the heavy lifting. Go over carpets, rugs, and furniture, and use the hose to get into corners, along baseboards, and under cushions. When you’re done, take the bag or canister outside to empty it so the fleas don’t crawl back in.

2. Flea Comb

This is a simple tool, but it works. Run it through your pet’s fur to pull out fleas. Keep a bowl of soapy water next to you and rinse the comb in it as you go so the fleas don’t jump off.

3. Pet-Safe Flea Treatment

Your pet will need something to kill the fleas living on them. That might be a shampoo, a chewable, or a spot treatment. Your vet can tell you what’s safest and works best.

4. Flea Spray or Powder

These help with areas you can’t easily wash. Spray or sprinkle them where your pets spend time, on rugs, or along furniture edges. Just make sure whatever you use is safe for pets and follow the directions.

Step-by-Step Guide

1. Know What You’re Up Against

Fleas aren’t just a nuisance; they’re persistent. The reason they’re so hard to get rid of comes down to how they grow. They don’t just pop up fully formed. There are four stages in their cycle: egg, larvae, pupa, and adult. Most treatments only kill the adult ones, so the younger ones stick around and keep the cycle going. That’s why one round of cleaning or spraying won’t cut it. You have to keep at it, even when it seems like they’re gone.

2. Start with Your Pets

If you’ve got pets, there’s a good chance that’s where the fleas are coming from. They can carry them in from outside, and once the fleas are in, they keep coming back to your pet to feed. The best place to start is with your vet. Ask them about a treatment that makes sense for your pet. This could be a pill, a topical treatment, or a collar, and if a flea bath is recommended, go ahead and do that too. Make sure your pet is fully treated before you start cleaning the house. If not, the fleas will just come back in again and again.

3. Deep Clean the House

Start by vacuuming. Go over every carpet, rug, pet bed, couch, and anywhere your pets hang out. Pay close attention to the edges of rooms, around baseboards, and under cushions. Those tight spots are where fleas like to hide. When you’re done, empty the vacuum canister or throw out the bag right away, and take it outside. You don’t want fleas finding their way back out.

After that, wash anything you can. That means your sheets, your pet’s bedding, throw blankets, bath mats, and anything soft that might have come into contact with fleas. Plus, use hot water since it helps kill whatever’s left behind.

4. Treat the Environment

Once the place is clean, it’s time to hit whatever fleas are still hanging on. A flea spray or fogger made for indoor use can help with that. Just check the label to make sure it’s safe to use around pets, and follow the directions carefully. Open the windows to let the air move, and keep your pets out of the area until everything is dry and cleared out.

If spray isn’t a good option, you can use a flea powder instead. It works well on carpets and fabric surfaces. Just make sure to vacuum it up when the instructions say to. Whichever one you use, this step helps catch any fleas you didn’t get during cleaning.

5. Repeat After a Few Days

This part’s easy to skip, but it really matters. Flea eggs are tough, and one round of cleaning won’t get them all. You’ll need to go back through the steps of vacuuming, washing, and treating. Ensure that you do this every few days for at least a couple of weeks. That gives you a chance to catch any new ones before they grow and start the whole cycle again.

6. Consider Alta Pest Control if It Persists

Even with all the cleaning and treatments, fleas can sometimes still hang on. If you’ve done everything from vacuuming, washing, to spraying, and they keep showing up, it might be time to bring in someone who handles this every day.

At Alta Pest Control, we use treatments that are safe around pets and tough on fleas. We know where they hide and how to stop the cycle before it starts up again. If you’re tired of chasing the problem, we’re here to help you clear it out for good so you can get back to living comfortably in your space.

Frequently Asked Questions

1. Why am I suddenly seeing fleas in my house?

Usually it’s pets bringing them in, but they can hitch a ride on you, your clothes, or even from visitors. Once a few get inside, they breed fast, so it can feel like they appeared all at once.

2. What kills 100% of fleas?

There’s no single quick fix. You have to treat the pets and clean the house at the same time. That means using a proper flea treatment for your pet, vacuuming a lot, washing fabrics in hot water, and hitting problem areas with sprays or powders.

3. How long does it take to get rid of a flea infestation in your home?

Usually a couple of weeks, sometimes longer. Eggs keep hatching after the first clean, so you have to keep vacuuming and treating until you’re sure they’re gone.

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