Hepper is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How to Find Hidden Dog Pee & Get Rid of the Smell: 4 Easy Steps

Kristin Hitchcock

By Kristin Hitchcock

scared puppy

There is nothing more frustrating than being unable to locate the source of a dog’s urine smell. If your dog has urinated somewhere and it still smells even after cleaning it up, then you likely didn’t get it all. Finding this hidden urine can be challenging. However, it is possible with the right method.

In this article, we’ll go over those exact methods. The easiest way to locate hidden dog urine is through the use of a blacklight, which you can purchase pretty cheaply.

divider 9

The 4 Steps to Find & Clean Hidden Dog Pee

1. Use a Blacklight

First, you’ll need to find a blacklight and find hidden spots. It works best if you do this step with a partner, who then sprays the spots with the cleaner. However, you can always mark them and come back later. Or, depending on the blacklight, you can hold it in one hand and the cleaner in another.

Either way, the blacklight should help you find all the hidden spots. It works best if you use it in a dark environment.

Mini UV LED Flashlight
Photo Credit: ekipaj, Shutterstock

2. Apply Hepper Advanced

After you’ve located the spots with the blacklight, you’ll want to use Hepper Advanced Bio-Enzyme Pet Stain & Odor Eliminator Spray. This formula contains enzymes that eat the bacteria causing the smell. Therefore, it is very effective at removing the smell and preventing re-marking. It binds to the smell and destroys it.

This spray works just about everywhere, so you can use it wherever the scent is located. It even works on most furniture, plus, it also works on other dog smells, like vomit—it’s a good investment.

You might have guessed, this is our own product – but we love it so much we just have to share it, and hope you get to own one too!

3. Follow the Directions

After you apply the solution, you’ll want to let it sit for 10 minutes. Then, blot it gently with a cloth and let it air dry for an extended period. You want to keep animals and children out of the area while it dries.

All the directions are located on the cleaner, so you won’t need to memorize these instructions. Just check the back if you forget.

young woman cleaning the carpet
Photo Credit: sebra, Shutterstock

4. Repeat as Necessary

In some cases, you’ll need to repeat the with the cleaner again. However, it is quite effective, so it usually doesn’t need a repeat. However, if you missed a spot or didn’t let it sit long enough, you may need to repeat the process. Use the blacklight to be sure!

Divider 5


While it may seem impossible to find the root cause of the dog urine smell in your home, all you need is a blacklight to locate the hidden spot. It isn’t odd for urine to splatter when your dog has an accident, while you may clean the main spot, you may not get all the drops. A blacklight fixes this situation by showing you exactly where the urine is.

Luckily, using a blacklight is pretty straightforward. You just turn it on and turn the usual light off. With the Hepper cleaner, you can remove the stains easily after about 10 minutes. Repeats usually aren’t necessary!

We recommend having this spray on hand for when your dog has those inevitable accidents.

Featured Image Credit: evgengerasimovich, Shutterstock

Related Articles

Further Reading

Vet Articles

Latest Vet Answers

The latest veterinarians' answers to questions from our database