I just move into this new flat in Tai Po. I notice that outside my sitting room window, there should be a small space area for flower pots about 6 feet by 1 foot. However this has been filled up with cement by the previous owner. If I just leave my pots there, I'm afraid they will fall and endanger passerby. I have checked out rails and fences from the Flower Market that might help. I wonder where I can get trustworthy workers to do the job for me safely. I am not going to spend a fortune. My budget is less than $1000 inclusive materials excluding plants.