Roofing warranties are one of the most misunderstood parts of a commercial roofing project. Many property owners assume a warranty covers everything that could go wrong, but in reality, different warranties provide different types of protection.
Understanding how roofing warranties work — and what is required to keep them valid — is essential for protecting your building and your investment.
At Garcia Roofing, we take the time to explain warranty options clearly so building owners know exactly what coverage they have and how to maintain it.
Understanding Roofing Warranties
Not all roofing warranties offer the same level of protection. Coverage varies depending on the roofing system, the materials used, and whether the contractor installing the roof is certified by the manufacturer.
Many warranties are only valid if certain conditions are met, such as:
- proper installation by certified contractors
- approved materials and system components
- documented inspections and maintenance
Garcia Roofing helps property owners understand these requirements so their warranties remain valid for the full duration of the coverage period.
The Two Main Types of Roofing Warranties
Most commercial roofing systems include two primary types of warranties.
Workmanship Warranty
A workmanship warranty covers installation-related issues caused by the contractor.
This type of warranty ensures the roofing system was installed correctly and according to manufacturer specifications.
Garcia Roofing provides a 2-year comprehensive workmanship warranty. If any installation-related issues arise within that period, our team will address them promptly.
Workmanship warranties provide peace of mind during the early life of the roof when installation issues would most likely appear.
Manufacturer Warranty
A manufacturer warranty covers defects in the roofing materials themselves.
When the roofing system is installed by a certified contractor, the manufacturer may also extend coverage to certain installation aspects.
Some manufacturer warranties are known as No Dollar Limit (NDL) warranties.
NDL warranties typically cover:
- materials
- labour
- workmanship
for the full warranty period, provided the system was installed according to the manufacturer’s specifications.
How Long Do Roofing Warranties Last?
Warranty terms vary depending on the roofing system and materials selected.
Most commercial flat roof warranties range from:
- 10 years
- 15 years
- 20 years
- 25–30 years
Longer warranties usually require higher-performance roofing systems and additional installation details.
For example, longer-term warranties may require:
- upgraded insulation components
- prefabricated flashings
- reinforced drainage systems
- additional installation inspections
These requirements help ensure the roof performs reliably over the extended warranty period.
What Affects the Cost of a Roofing Warranty?
The cost of a warranty is typically built into the roofing system specification and depends on several factors.
Common factors include:
- roofing system type
- warranty length
- material upgrades required
- installation specifications
- inspection requirements from the manufacturer
For example, a 25-year warranty may require additional system components compared to a 15-year warranty.
While longer warranties may increase initial costs, they often provide additional long-term protection and peace of mind.
What Can Void a Roofing Warranty?
One of the most important things property owners should understand is that warranties can become void if certain requirements are not followed.
Common reasons roofing warranties become void include:
- lack of documented annual maintenance
- repairs performed by non-certified contractors
- installation of non-approved materials
- unapproved work by other trades on the roof
- modifications that alter drainage or roofing components
Most manufacturer warranties require annual inspections and documented maintenance performed by a contractor certified by that manufacturer.
Regular inspections help identify issues early and ensure the roof continues to perform as designed.
Who Handles Roofing Warranty Claims?
If a warranty issue occurs, the claim process usually begins with either the contractor who installed the roof or the manufacturer who issued the warranty.
In many cases:
- The building owner contacts the installer.
- The manufacturer is notified of the claim.
- The original contractor is contacted to inspect the issue.
If the original installer is unavailable, the manufacturer may assign another certified contractor to complete the warranty work.
This process ensures the roof can still be serviced by qualified professionals if circumstances change.
Why Warranties Still Matter — Even with a Trusted Contractor
Even when a roofing system is installed properly, unexpected situations can still occur.
Factors such as:
- extreme weather
- building movement
- equipment installations
- accidental damage
can affect roofing systems over time.
A strong warranty provides an additional layer of protection beyond the contractor’s workmanship and helps ensure issues can be resolved if they arise.
At Garcia Roofing, we believe warranties should be meaningful, enforceable, and supported by proper installation practices — not just a piece of paper.
We’re not just here for today — we’re here for tomorrow as well.