Make sure you read the contract very carefully. Most problems come from contractual problems, not with the work itself. Discuss how weather, such as sun, rain, snow, wind, dust, trees, and branches will affect the roof you have chosen.
Check to see if they are a member of a trade association or have taken continuing education training. Make sure you get proof of this. Ask them about a warranty as well. You want to get a warranty for 2 years for workmanship and materials prior to securing them. If there is going to be a problem with the roof it usually will happen in this 2 year window. Make sure you understand everything about the warranty and guarantees.
Once you have paid the roofing contractor in full it is their responsibility to pay the materials supplier in full. They should be able to provide you with a manufacturer warranty as well. It's important to get in writing that the roof will be installed by the manufacturer's specifications. Finally, discuss proper ventilation and have the roofing contractor check your current ventilation.
First, if the contractor wants to be paid upfront, walk away and check into a new contractor. A qualified and reputable contractor will set terms for payment that both he or she and the customer agree on. This will be included in the proposal which will also include any included warranties, the exact work to be done, total cost and time frame to fully complete the job.
All reputable contractors will obtain the proper permits prior to starting the job. These permits will be granted by the local governing agency.
This means that they will come out after the roofing job is done and make sure it was done properly and to code.
Make sure that the shingles that are being applied are guaranteed. Most shingles will offer a guarantee as long as they're applied correctly. By having a guarantee, you have the assurance that if something goes wrong or the roof starts to leak prematurely, you're covered. Many Roof Contractor also offer guarantees on their work, and it's very important to find contractors in your area that offer such guarantees. For more info please visit our site http://www.ogdenroofers.com/