Best Flea Spray 2019:
Kill & Repel Fleas on Your Dog and in Your House

ReadySetDogs' #1 Pick

​Vet's Best makes a great flea spray that you can use anywhere--on your dog, on your couch, on your carpet! It kills and repels fleas effectively. Learn more about it below.


Is your house infested with fleas? Say it ain’t so! Hopefully that’s not the case and you’re just here because you want to be prepared if those dreaded little bugs ever do invade. I certainly wouldn’t wish fleas on anyone.

So you’re on this page because you have a flea problem or you want to avoid a flea problem at all costs. Either way, you’ve come to the right place. The answer you are looking for is the best flea spray.


There are so many options when it comes to flea spray. It comes in a wide variety from flea spray that simply repels fleas in order to prevent an infestation to heavy duty, chemical flea spray that will kill every flea, larva, and egg it touches.

There are flea sprays for dogs that are meant to simply be sprayed on your pup. These don’t work on furniture or other surfaces, just your dog.

There are flea sprays that are meant to be used all over your house including directly on your dog!


And there are flea sprays that are only to be used around the house. You should wear a mask while using these and wait for them to dry before you let anyone (human or animal) back in the house. These can be pretty intense. They can also be harmful to humans and pets so I would hesitate to use these unless the infestation is out of hand and nothing else is working.

Some flea sprays kill the fleas instantly and some flea sprays only repel fleas. It’s important to know what a flea spray will do for you before you purchase it. If you’re just looking to prevent a flea infestation, there’s no need to buy a flea spray full of chemicals. Go with something natural that is safer for you and your dog. But if your house is overrun by fleas, a natural spray may not be strong enough to get rid of them and then it’s time to bring out the heavy duty stuff.

What to Do

Sad Dog On Floor

The best thing you can do is prevent a flea infestation before it starts. Personally, I have some natural flea spray for dogs on hand and I spray them around the house periodically. The ingredients are all natural so it’s perfectly safe for humans and animals, but the fleas hate the smell. It drives them away before they even get here.

Just to be safe, it’s smart to have a heavy duty flea spray on hand as well. That way, if the fleas sneak in, you are prepared to act as soon as you notice them. I’ll say it again: the best thing you can do is prevent a flea infestation before it starts!

If there are a few fleas, it’s ok, you can get rid of them easily. But don’t delay! Fleas spread and reproduce incredibly quickly. If you procrastinate, you’ll end up with a much bigger problem on your hands.

Flea Spray Ingredients

Flea sprays for dogs use a variety of ingredients. Some are natural and some are synthetic.

The natural ingredients mainly consist of oils that repel fleas like peppermint, cedar, lemongrass, tea tree, cinnamon, and clove oil. They also include ingredients like citrus and garlic. Some of these ingredients do kill fleas, but more often than not, natural flea sprays are just repellents. But don’t underestimate the power of a good repellent. My aunt sprays mouthwash around her lake cabin and I have never seen a cabin with fewer bugs.

Spray Bottle

The synthetic ingredients are generally more powerful, but they also have the potential to be more harmful to you and your dog. I would hesitate to use harmful chemicals in the house if it can be helped, but sometimes the fleas won’t go away and you need that power.

Chemical ingredients include pyrethrins, pyrethroids, imidacloprids, and insect growth regulators.

Pyrethrins are natural insecticides that come from the chrysanthemum plant. They attack the nervous system and kill the fleas.

Pyrethroids are synthetic pesticides, meaning they were made in a laboratory. They act in a similar way to pyrethrins, but they are more powerful and last longer. Permethrin is a pyrethroid that is toxic to cats. If you have a cat, do not use a flea spray that contains permethrin.

Imidacloprid is a neonicotinoid, which is a neuro-active pesticide. It affects the nervous system of fleas directly and will kill them.

Fleas have a hard shell that must be penetrated in order to kill them. That is why many flea-killing agents attack the nervous system.

Insect growth regulators (IGRs) are very powerful. Instead of killing fleas, they stop their growth cycle. Fleas begin as eggs, then become pupae, larvae, and then adults. IGRs prevent eggs from hatching, pupae from becoming larvae, and larvae from becoming adults. They also prevent adult fleas from reproducing as any eggs they lay will never hatch.

The Best Flea Sprays 2019

As previously mentioned, there are many different types of flea sprays. There are flea sprays for dogs and flea sprays for the house and flea sprays for both! Let’s discuss the best flea sprays of all intensities so you can choose the best option for your house, your family, and your dog.

The Best Flea Sprays for Dogs 2019

#1 Vet's Best - Flea & Tick Home Spray -- Best Flea Spray for Dogs 2019

Vet's Best make a great flea and tick spray that kills fleas, flea eggs, and ticks on contact, while also repelling mosquitoes. It is a natural spray that uses peppermint oil and clove extract as key ingredients that control and kill fleas and ticks. You will find absolutely no pyrethrins, permethrins, or cedar oil. This flea spray is natural so it’s safe to use directly on and around dogs and cats that are 12 weeks or older. Very young puppies and kittens are very sensitive. This spray is also safe for use around children. You can spray this formula all over your house without worry as it is non-staining and can safely go on all surfaces (furniture, carpet, flooring, countertops). It’s not even harmful to plants! But if you are a flea, watch out!

#2 Natural Care Flea and Tick Spray for Dogs and Cats

Natural Care created this spray for dogs and cats to repel mosquitoes while killing fleas, flea eggs, and ticks on-contact. It is safe to use on multiple home surfaces, outdoors, and even on your dogs and cats, as long as they are 12 weeks or older. The natural ingredients mean it is safe to use around your family too. Spray it all over your dog’s bedding, pillow, blankets, carpets, rugs, drapes, upholstery, and countertops! This flea and tick spray is made in the USA using natural plant extracts, such as peppermint oil and clove extract, to powerfully and naturally kill those pesky fleas and ticks. No need for harsh chemicals here. Shake before use and gently spray your dog until she is damp but not dripping. Always avoid the face. Peppermint oil is natural, but it’s still unpleasant to have it sprayed in your face! You can even massage the spray in for maximum effect. Use this flea spray for dogs all year round to prevent fleas from infesting your house!

#3 Natural Chemistry De Flea Pet and Bedding Spray

Natural Chemistry knocks it out of the park with this flea spray. You can use it directly on your dog or all over their bedding, the furniture, and carpets. It kills fleas on contact giving your dog immediate relief from those irritating, biting bugs. It can be used around all ages of dogs from puppies to adult. Natural Chemistry proudly makes their products in the USA. This formula incorporates a patented combination of non-toxic, safe ingredients that work together in order to soften that waxy exoskeleton of insects. Once penetrated, the flea’s internal organs are saturated and immediately killed. This De Flea Spray works against every life stage of insects. All parasites will be eliminated without any harsh chemicals. This spray is not for use on or around kittens or cats.

The Best Flea Sprays for the House 2019

These are heavy duty flea sprays that contain chemicals that can be harmful to you and your pet. I always recommend using the natural flea sprays listed above first. If those don’t work, you may be forced to use something stronger. These are some great options for that case. Use these flea sprays to get rid of the infestation, then use the natural flea sprays for prevention of future infestations.

#1 Vet Kem Siphotrol Plus II Premise Pest Control Spray -- Best Flea Spray for the House 2019

Vet Kem was not messing around when they make this flea spray. It is made of a fast-acting formula that boasts a 100% knock out rate of adult pests in 10 minutes. A single can of this stuff will treat roughly 2,000 square feet. It is a water-based, easy-to-apply aerosol spray that leaves no lingering odor, stains, or stickiness. It will penetrate your carpet so the fleas won’t even be able to hide underneath! Vet Kem’s Premise Spray contains PRECOR Insect Growth Regulator, which freezes fleas in whatever stage they are in and prevents reproduction. You can use it in the home and garage to control fleas and ticks. It also works to prevent re-infestations and flea build-up for 30 weeks. It does contain permethrin as an active ingredient. Remember, never use any product containing permethrin if you have a cat. Permethrin is very dangerous to cats.

#2 Virbac Knockout E.S. Area Treatment Carpet Spray

Do you need a powerful flea spray to get rid of the fleas in your house? If you’ve tried the natural alternative to no avail, then it’s time to step up your game. These fleas are no joke and you need something strong enough to get rid of them and make sure they never come back. This flea spray by Virbac can prevent flea infestations from developing for up to 7 months. Just one can (16 ounces) can treat an area of 2,100 square feet. This spray reaches deep to kill fleas hidden in carpets, floor cracks, pet bedding, drapes, rugs, and upholstery, while leaving no mess, unpleasant odor, or stickiness. As long as you follow the directions, you won’t have to worry about stains either. This formula contain pyrethrins and permethrin, among others, as active ingredients. Remember, permethrin is toxic to cats, so if you have cats, this product is NOT for you.

#3 Zoecon Precor 2000 Plus Premise Spray

Do you need another great option for a heavy duty flea spray? Well, here it is. Zoecon’s Precor 2000 Flea Spray helps you immediately kill existing fleas, It works in a single application. This flea spray contains Precor Insect Growth Regulator and permethrin adult flea killer. Remember, permethrin is toxic to cats. Do NOT use this if you have a cat! The IGRs prevent pre-adult flea from growing into new infestations of breeding, biting adults. This spray works to control fleas, ticks, ants, and cockroaches. You could call it a jack of all trades. The formula includes phenonthrin and permethrin, which both kill adult fleas. It also has Precor IGR to prevent the hatching of eggs and the growth of the younger pupae and larvae. One can will treat 2,000 square feet. The spray comes out in a fine mist with a low odor. It’s water-based, which allows it to have more coverage and when it dries, it won’t leave a residue. This stuff will prevent reinfestation for seven months! Zoecon says you can spray it in your home, garage, kennel, drapery, furniture, cushions, pet bedding, wood flooring, carpets, and rugs. Not for use around cats!

Last Thoughts

When it comes to preventing and exterminating fleas, there are a lot of options. The smartest choice you can make is to prevent fleas from invading your house altogether. The best and safest way to do this is to use products with natural ingredients, like flea spray for dogs and flea shampoo for dogs. Use them regularly so the fleas never take hold. Your dog will encounter fleas outside on walks and at the park, but you can prevent them from latching on and coming into your house.

Puppy On Bed

If the fleas are already in your house or somehow make it past the barrier of natural repellents, bring out the flea spray for the house enhanced by stronger chemicals that will kill the fleas and make sure they don’t come back.

I hope you found this article helpful and I wish you a flea-less existence. Here at ReadySetDogs, we are committed to helping you provide the best care for the furry members of your family. If you have any questions or comments, feel free to contact us or leave a comment below.

Product Images Sourced from Amazon

About the Author Anna

Anna is a canine enthusiast. She loves everything about dogs from their loyalty to their energetic spirits to their stubborn moments. She has a passion to learn everything she can to become a better "dog-mom" to her Toller, Penny, and to share her knowledge of dogs with all who are interested in the hopes of educating people on the best canine care.

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