Before you decide to hire any concrete pumping contractors, you should ask the people that you know.  Co-workers, or friends in the industry might have worked with a contractor in the past that has turned out well.  they also may have some advice on a contractor that did not do well for them.  It is also possible to do the job yourself, but you might be better off to hire a contractor instead.  Working with concrete requires special equipment, and it’s a good idea to get someone that has a lot of good experience in the past to work for you.  So do research and ask around so you can find the best pumping contractor for you.