Keystone Environmental PTY LTD

See what local homeowners are saying

• NFnathan F1 Feb 2026

  Bryan went above and beyond for us (my partner and me, Emily). We were dealing with severe mould contamination in the HVAC system of our rental, and Bryan did everything he could to investigate and id...

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  Bryan went above and beyond for us (my partner and me, Emily). We were dealing with severe mould contamination in the HVAC system of our rental, and Bryan did everything he could to investigate and identify the source. He was compassionate, understanding, and flexible during what was an extremely vulnerable and difficult time for us. He even went so far as to prepare an addendum for us late at night when we needed it urgently in anticipation of a court hearing. I genuinely cannot recommend him highly enough — a sincere, thorough professional running a properly qualified and trustworthy business. 10/10.

• RBRem B5 Feb 2026

  Bryan and the Keystone Environmental team have been (like it says on the pack) the keystone to our home environment health. Keystone has supported us in our battle against mould over the past 6 years....

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  Bryan and the Keystone Environmental team have been (like it says on the pack) the keystone to our home environment health. Keystone has supported us in our battle against mould over the past 6 years. I couldn't recommend them more highly.

• DBDAVIDE B9 Jan 2026

  Bryan was great to deal with . Very professional at all times . Talked us through the process every step of the way and was very detailed and prompt . Highly recommended Bryan at Keystone Environmenta...

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  Bryan was great to deal with . Very professional at all times . Talked us through the process every step of the way and was very detailed and prompt . Highly recommended Bryan at Keystone Environmental!

• RSRachel S10 Oct 2023

  I recently got Bryan from Keystone to come out to our house to assess for mould. He was very helpful spending lots of time answering all of our questions,. His assessment seemed very thorough, and he...

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  I recently got Bryan from Keystone to come out to our house to assess for mould. He was very helpful spending lots of time answering all of our questions,. His assessment seemed very thorough, and he is very knowledgeable in his area. He also did not try to upsell us, but instead recommended for our case against air testing. I highly recommend him. And I think everyone should have a mould assessment of their house for peace of mind!

• PFPaul F7 July 2024

  Bryan visited our home to complete an environmental survey/assessment including a detailed mould risk investigation and assessment. During the inspection he was extremely thorough, as well as thoughtf...

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  Bryan visited our home to complete an environmental survey/assessment including a detailed mould risk investigation and assessment. During the inspection he was extremely thorough, as well as thoughtful, insightful, and informative. Encouraging us to ask questions and always giving a thoughtful detailed answer/explanation. With is measuring equipment, knowledge and care we learnt a lot about our home and what we can improve and where potential weakness points are or areas to watch. A thoroughly worthwhile investment (cost and time wise) in our home asset. If we buy another property we will certainly be considering asking Bryan for an assessment at the same time as the building and pest. Thank you Bryan for being so thorough and helpful.

• DJDeborah J5 Oct 2023

  Bryan is knowledgeable and has been supportive during the duration of my claim for a water event that lead onto serious "mould" issues in my house. One could say that he "saved my life". If it was not...

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  Bryan is knowledgeable and has been supportive during the duration of my claim for a water event that lead onto serious "mould" issues in my house. One could say that he "saved my life". If it was not for the provision of his professional and detailed report, I would not have been told to "evacuate" the property by the insurer and possibly would still be battling with "brain fog" and ill health. Thank you again Bryan.