If you are hiring a roofer or other construction professional, you should expect to receive a contract. Here are five very basic things which you and any other homeowner should see when receiving such a contract: 
1. The contract is in writing. While this may seem obvious, some contractors may not provide a written contract or written change orders. In order to protect yourself – and for the roofer to protect him or herself – a contract which is agreed upon by both parties must be in writing.
2. Proposed work description is listed. Before work has started, the contract should be provided with a proposal of work listed. This may be subject to change. After all, if your roofer has found dry rot, he or she may need to pull up some of your roof to determine the extent of the damage. However, there should be at least a basic and understandable description of proposed work.
3. Contact information is listed. Before any money changes hands, be sure your contract lists contact information along with Construction Contractor’s Board Number (CCB#). This will help you if something unexpected comes up, the work is unsatisfactory, you need to understand a warranty, or you have a complaint to file to the Construction Contractor’s Board.
4. Warranty information is listed. Do not accept a verbal warranty or guarantee. At the very least, insure this information is listed on your contract.
5. Pricing information is listed. This allows you to understand the total for the job and gives you the opportunity to clarify pricing as needed.
At the end of the day, be sure you have a written contract that both you and the roofer understand and agree on before the work begins.