When you hire a roofer to do roof repair, you want the job to go as smoothly as possible. If you asked the roofer for an estimate, you expect that the estimate that the roofer gives you is the full expected cost of the job. However, there are occasionally some unexpected added expenses once the roofer takes off loose shingles or has to patch holes. If there are going to be extra expenses, your roofer should (and usually will) tell you that the job is going to be a little more expensive than previously thought. Before you get into any accidental conflicts with your roofer, you should know a few ways to avoid such conflicts.
Revision of Estimate
A roofer that needs to revise the estimate for the work because more work than previously believed has been uncovered should do so and present it to you before even starting any other work. If the roofer comes to you and says that more work is needed, you need to ask what the additional cost is if the roofer does not mention price. Do not simply agree to the additional work without knowing what it will cost. Assuming that the extra work will be included in the original estimate may result in sticker shock when the he or she presents you with a final bill.
Paying the Original Estimate in Full and Being Surprised with a Final Bill
A lot of people get excited about the estimate thinking that they have just hired the least expensive contractor. If you pay the original estimate in full believing that you have paid your roofer in full, you best ask your roofer if that really is the complete bill. Some roofers will provide you with the initial estimate, and then switch gears to charge you more at the end of the job if and when there are unexpected expenses. This is a common practice, and one which a lot of homeowners are quite shocked by when they are presented with a final "estimate" and bill, and the amount is two to five times what they thought they were going to pay. Simply remembering that the first estimate is just that, an estimate, and requesting your contractor to keep you aware of any increases to the estimate, can help you avoid this situation.
You can avoid such conflicts by communicating clearly. Make sure you understand what your roofer is saying to you and present him/her with questions if anything is unclear or confusing. If the job needs more work, make sure your contractor outlines ahead of time what that means in terms of work and cost.