About Untold Mould.

Your Healthier Home Starts Here.

UNTOLD MOULD is a forward-thinking HealthTech company dedicated to helping UK homeowners identify the hidden dangers of mould in their homes and prevent mould-related issues.

Our flagship product, a cutting-edge at-home mould testing kit, is designed for simplicity and accuracy, making it easier and more affordable than ever to test your home for mould and indoor air quality.

Our mission is simple. To help you detect, discover, and make informed decisions about the air you breathe. We are the first essential step towards creating a cleaner, healthier living environment.

Why wait? Start your journey to better air quality today - shop now.

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Our home mould testing device.

Testing for mould and indoor air quality has never been quicker or easier. In the past, testing for mould required you to pay for an expensive specialist, but that’s no longer the case.

With the Untold Mould Home Mould Testing Device, you can test each room in your home for mould and other airborne pathogens in just 30 minutes.

Simply insert your mould testing cassette, turn it on and return in 30 minutes. It’s lightweight and highly portable, making it easy to move it between rooms.

Once you’re done, simply pop them in the envelope with the completed form, and you’ll get your results within 3 working days of when they reach our lab.

The lab.

Our UK-based lab is at the forefront of innovation, with modern testing processes that make analysing mould and air quality samples easy.

Our state-of-the-art lab produces advanced, science-backed results that can give you information on over 90 different types of mould and airborne particles, with 99% accuracy.

Our goal is to give you the resources and knowledge to make your home healthier.

Mould world.

Explore our journal
How to talk to your landlord about mould
Oct 31, 2025
Untold Mould

How to talk to your landlord about mould

Mould is an unpleasant yet widespread problem in the UK, with an estimated 50% of all households being affected by it. Not only does it look and sm...

Awaab’s Law: A Guide for UK Landlords
Oct 27, 2025
Untold Mould

Awaab’s Law: A Guide for UK Landlords

Housing law is constantly changing and evolving, often sparked by significant events, but it’s rare we see changes as big as Awaab’s Law, which com...

Frequently Asked Questions

Untold Mould was established in 2024, but the business officially launched in early 2025.
Untold Mould was created out of our founder Hermione’s passion for healthy living. We recognise that there is a mould epidemic in the UK, and we want to give homeowners the equipment and resources to have a healthier home.
Once you’ve bought one of our mould testing starter kits, take a look at our “how to” page for easy-to-understand instructions.
There are no hard and fast rules on how often you should test your home for mould, but we’d recommend testing if you suspect there’s mould in your home, or if you have unexplained illness, especially respiratory issues.