On 5 December up to a thousand of WebCentral's customers lost all access to services for several hours in case equipment overheated after the Brisbane facility's water supply was cut off.
Telco AAPT's data centre in the same building was unaffected by the problem due to the fact it had its own dedicated water supply.
"WebCentral has implemented a range of initiatives to help to ensure that our data centre water supply is not impaired again," the company said in an e-mailed statement responding to questions posed by ZDNet Australia.
WebCentral said it had arranged additional, redundant water supplies at its data centre facilities, in addition to extra check points in its monitoring and control systems, "to provide an earlier indication of water supply issues to enhance incident response."
Broader initiatives are also on the way.
"At the time of the water supply fault, we had already commenced a major upgrade of our data centre services monitoring and control system," the vendor said.
"This upgrade is due for completion in the current financial year and will deliver a higher level of monitoring, alert and automated failover capabilities for all services."
WebCentral also claimed to have completed the latest in a series of "regular" reviews of its infrastructure, as part of the company's standard risk management processes.