A number of industrial cleaning companies will make use of street sweeper trucks. They are needed to keep the streets clean, whether the streets are in an office park or not. The question is generally not whether you need one or not but rather whether you should rent one or buy one.
Renting street sweeper trucks
This is generally a good short term solution to getting this kind of equipment for your cleaning company. If you do not need a street sweeper very often then this is most likely going to be the best option for you. you will not have to worry about the maintenance of the truck unless you take out a long term lease and the maintenance is in the terms and conditions of the contract. This will save you some money. Renting is generally more expensive than buying is if you do it a lot.
Buying street sweeper trucks
This is the best option if you are going to be using street sweepers on a daily basis. You will save money in the long run as you will not have to rent a truck on a long term basis. You will have to make sure that you maintain the truck and keep it in good working order though. This will cost you quite a bit of money over and above the repayments on the truck (assuming you did not buy it cash that is).
In the end, the choice of whether to buy or rent the street sweeper trucks that you need is one that you will have to make for yourself. You are the one who knows how often you are going to be using the truck and how much cash you have available to your for things like this. If you are not sure then you might want to look at renting the truck for a while and see how much that will actually cost you versus how much buying the truck would cost you on a monthly basis. This should allow you to make an informed decision. As long as you know what you need, you can make the decision for yourself.