Johnston property Maintenance employs all trades people and can carry out all services. Most of the staff employed have served their apprenticeship with the company and have chosen to remain with the company after completion of their training. As we have been involved in the construction industry for over 40 years we have a wealth of experience in offering a first class service whatever size of your job. Below is a list of in-house trades that we can offer, please give us a call for a free estimate or to discuss the requirements of your project.