To be able to seek compensation, you would need to be able to prove that the company concerned owed you a duty of care and breached that duty causing you injury or damage as a result. This is the basis for a claim in negligence. Since the company employees asked you to assist with what they had been hired to so, it could be argued that the company then owed you a duty of care and breached that duty by failing to ensure your safety. You would be able to claim damages for pain, suffering, loss of amenity and any expenses arising. ie loss of earnings which resulted.
You do need a lawyer to provide you with advice and act on your behalf. Most lawyers who practice in this area of law are prepared to do so on a "no win no fee basis" meaning that you are not charged any legal fees upfront but in the event that you are successful, they will be entitled to a percentage of your compensation in legal fees.
Aussielegal can recommend an experienced lawyer in your area. Please either contact us on 1300 728 200 or visit our web-site under the heading Find-A-Lawyer service. Aussielegal.