A scientist examining a mould sample in a lab, the result of a Pure Maintenance air test.

Mould Testing

There are a variety of different methods you can use to test for mould in your home that range in pricing and sampling time. When deciding on what testing to pursue, remember your objective and the data you are interested in. Listed below:

Take the guesswork out of it

Don't leave it to guesswork. Our mould tests provide the data to understand the following:

  • If mould is present

  • The severity of the mould problem (spore count per m3)

  • The mould strains present

  • The context and points of comparison to understand the results above

The results of your air tests are fed into a personalised dashboard designed to help you understand the data through intuitive visuals. Our air tests provide fact-based insight into the health of the home, the cleanliness of its airspaces and if any mould remediation is required. 

A screen showing a Pure Maintenance UK dashboard which shows the result of the pre and post treatment air test results.
Non-Viable Air Testing


This is our preferred form of testing, and what comes with our PureHome Treatment. We feel this is your best value - it allows you to determine what concentrations of mould are in your air space, and what species of mould are in your home at an affordable price. Once you have identified you have a mould problem, you need a relatively inexpensive way to determine the extent and severity of your issue.


OUTCOME: Understand how polluted your indoor air space is, what genus of mould are in your home, and if they are actively sporing. Tells you spores per cubic meter of air and genus of mould (Aspergillus vs. Penicillium).

An air test cassette collecting air, dust, mould spores and other particulate to ascertain household mould levels
Viable Air Testing


The exact same process as non-viable testing, except the captured spores are then cultured on growth mediums (think Petri dish) to determine if the spores were alive and reproducing (viable) and what kinds of mould colonies grow as a result. This is more expensive than non-viable air testing.

A key point to remember is that not all spores captured will grow at the lab. Some spores take much longer to germinate, other don't like growth medium of the petri dishes. 


OUTCOME: Your report will show spores in your airspace that are alive (colony-forming unites) and how concentrated they are in your airspace. Because they are allowed to grow, the lab can narrow down what species of mould the spores are (Aspergillus Fumigatus vs. Aspergillus Niger). You data will be limited to what actually reproduces on the plate.

ERMI Testing


This is the premiere mould test for those that want the most amount of information about mould in their home. As it is premium testing, it comes with a higher associated cost. A sample of settled dust in carpet is taken and analysed using a highly specific DNA-based method called MSQPCR. Once all mould DNA (alive and dead) is sampled at categorised, it calculates the ratio of water-damage based moulds vs. common indoor moulds to give a score of likely “unhealthy mould” conditions. This score is given based on an index of 1,096 homes in the United States that varied from extreme mould damage to brand new homes with none


Get a quote for mould remediation

Already know you've got mould? Our innovative, patented mould remediation technology is truly market leading. We eradicate mould with our dry fog sterilant, our technicians remove any visible mould colonies and we lay down our anti-microbial film on all surfaces, creating an inhospitable environment for mould subsequent to our treatment.

Leave us your details using the button below and our quick response team will get back to you. Our in-house experts will talk you through our services, pricing and will tailor a treatment plan based on your unique circumstances.