What are the key differences?

Both are designed to lower the risk of equipment failure, downtime or outage that would affect a building and potentially the tenants within it. So what are the key differences between the two?

Both are a type of pre-scheduled maintenance, however preventative maintenance has a more regular schedule, whereas predictive maintenance is planned based on the condition of an asset in real time.

For example, preventative maintenance will consist of regular scheduled engineer visits to site to inspect critical assets and works are then scheduled based on the results of this such as minor part replacements. Predictive maintenance has evolved as a result of improved technology and allows us to monitor and analyse data of individual assets remotely and conduct only necessary work based on the condition of these assets.

Therefore one key difference that defines the two is cost. With preventative maintenance requiring much more labour and more frequent material costs, overall cost savings via this method are not as effective. Some also argue that assets can potentially be “over maintained” and the regular engineer visits are not always required.

So why is predictive maintenance not simply the best choice?

With the benefits seeming to outweigh those of preventative maintenance why doesn’t everyone simply opt for this service?

Ultimately the choice is made dependant on the size of the maintenance budget, and more importantly the requirements of the building. Flagship buildings where downtime would be critical may even choose to invest in a both methods to minimise risk even further.

Someone who has witnessed this shift towards a difference maintenance offering is Assistant Contract Manager, Stephen Heath. Having trained as an engineer before moving into a management role, here he discusses his experience as well as his beliefs for the future.

“Although it is clear that the industry is heading more and more towards predictive maintenance, it is important to remember the potential challenges, in that you are very much dependant on reliable software e.g WiFi, Elogbooks and handsets.

When advising our clients here at Hemlow, what we offer very much depends on the contract. What is important to us is that we tailor it to the client’s needs and offer them the best solution. For example a contract which is only visited once a month would not benefit from predictive maintenance as it requires significant investment in tech and also in time, in terms of training and up-skilling employees/engineers on new systems.

With this shift towards predictive maintenance it is clear that the role of the engineer will change. Their job will become more heavily monitored, as managers/clients will have greater visibility as to what specific tasks for which assets have been completed and when, potentially making it a more pressurised role.  

However it is not just the engineer role that will change as a result. As a manager, we now require more training to help gain a better understanding of all this new data we are receiving. The clients are now looking to us to provide them with all the necessary information they require to help them make informed decisions, so it’s highly important that we are able to correctly and efficiently analyse and confidently advise as a result of this.

I believe that predictive maintenance will be the future with technology being used more in society. That being said, I believe there will always need to have an engineer attend site on a scheduled basis”.

At Hemlow we work with many of our clients on planned preventative maintenance strategies and have also recently formed a collaborative new partnership with 4D monitoring to help reduce energy savings for our clients looking for predictive maintenance. Contact us today to see how we can help make your building work for you, teamhemlow@hemlow.com.


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