Our New Jersey customers often inquire about Roof Warranties. Here’s what you need to know in order to protect yourself and your investment in a new roof.
What is a Roof Warranty?
A roof warranty is a guarantee that the quality of the work and materials used in performing a roofing repair or replacement will meet certain standards. These standards include:
The quality of workmanship.
The quality of the materials that are used.
That these items are guaranteed to last a specific length of time, given normal use.
The the guarantor will repair or replace any damage caused by the lack of the items covered under warranty to fulfill their specified role.
Manufacturer’s Warranty Versus Contractor’s Warranty
Manufacturer’s warranties and contractor’s warranties are separate, but work hand in hand. A manufacturer’s warranty guarantees that the materials used are free from defects, and will perform as indicated in the specifications as long as they are properly installed. A manufacturer’s warranty is usually good for a period of 25 years.
A contractor’s warranty covers the workmanship that goes into installing or repairing a roof. This means that the job was done according to the specifications laid out in the proposal, that it was done according to the local building code, and that it was done according to the manufacturer’s specifications for the materials used. A contractor’s warranty is usually good for 2 years.
What are the costs involved with warranties?
A shingle roof is usually warrantied in stages, with full replacement coverage for the first 7-10, and then lowered in percentages after that, up to 25 years. A 50-year shingle is available. It costs a little more up front, but you are guaranteed full coverage for a longer period, so it could save if you need extensive repairs down the road due to defective materials.
Warranty Documentation
The contractor’s warranty is usually specified in the contract. Be aware that if the contractor didn’t install your roof as per manufacturer specifications for the materials, it could void your manufacturer’s warranty. The manufacturer’s warranty will be included with the materials. Make sure you get it from the contractor.
What to do if you need service
If you need service, contact the company that installed the roof. They will do an inspection to see if the problem is due to faulty workmanship or defective materials, and proceed from there.
In the end, your best bet is to buy the best quality materials you can afford from a reputable company, and have them installed by a reputable contractor.


