When you hire a roof installation company, you are going to want to look closely at the roofing company's warranty. You are going to want to look into the warranty that comes with the products and supplies, as well as the warranty that backs up the work done on your roof.
The first thing that you want to look at is the length of the warranty that comes with the supplies that are used on your roof. Make sure that the roofing company is using supplies from a well-respected supplier. Look at the history of the supplier and find out how long they have been in business. It is common for most roofing supplies to be backed up with warranties that last for decades.
When you look at the warranty that comes with the supplies, don't just look at how long the warranty lasts, be sure to also look at if the warranty is transferable. If you sell your home, you want the warranty for the supplies to pass on to the new homeowner. Also, look carefully at the circumstances that can void the warranty on the supplies. Make sure that there are not any clauses that you may have an issue with, such as a clause that forbids do-it-yourself repairs.
If you are not happy with the warranty offered for the supplies, see if different supplies can be used on your roof.
Just as important as the warrant that covers the supplies used on your roof is the warranty that covers the workmanship on your roof. The labor to install a new roof can be as expensive as the supplies.
You want to make sure that any roofing company you work with backs up the work they do. It should come with a very long warranty for a roof replacement. It is often common to offer lifetime warranties for work on a new roof. That means fixing any damage with the original installation.
You should also make sure that the workmanship is also covered as a transferrable warranty. Once again, the more warranties you can transfer to the new home owners, the more appealing your home will be to a potential buyer down the road.
Before you hire a roofing company, make sure that you are comfortable with the length of time and the details of the warranty for both the supplies and the workmanship. Make sure that all warranties are provided to you in writing before any work starts on your roof.