Don’t Get Hypnotized by the Number “25”

Before you sign, a salesman might confidently say, “Don’t worry, our panels have a 25-year warranty!” It sounds amazing—peace of mind for a quarter of a century.

But when your roof leaks in Year 3, or the inverter fails in Year 13, you might call to claim warranty only to hear: “Sorry, that’s not covered under the 25-year warranty.”

Why? Because solar warranties are actually split into three types, and the most important one often has the shortest term.

1. Performance Warranty — The So-Called “25 Years”

This is usually what salespeople refer to.

• What it means: The manufacturer guarantees that after 25 years, the panel’s output efficiency will be no less than 80%-85% of its original capacity.

• The Reality: It covers “degradation,” not “physical failure.” As long as the panel is generating power within the allowed degradation curve, it’s considered fine. It does not mean you get a free replacement if the panel physically breaks or stops working completely.

2. Product Warranty — The Hardware Quality

This is the warranty that actually covers “if things break.”

• What it means: Covers manufacturing defects, rust, glass breakage (non-accidental), etc.

• Duration: Industry standard is typically 10 to 12 years.

• Note: Inverters are electronic devices with shorter lifespans. Their warranty is usually 5 years (extendable to 10 years with some brands).

3. Workmanship Warranty — The Installer’s Integrity

This is the most critical yet most overlooked warranty. It is given by the Installer, not the manufacturer.

• What it means: Covers issues related to the installation process, such as roof leaks (Bocor), loose wiring, or mounting failures.

• Industry Reality: Many cheap installers only offer 1 year, or no written guarantee at all. If your roof leaks after a year, they will deny responsibility.

• Homi Standard: We have absolute confidence in our craft, offering a Workmanship Warranty that far exceeds the industry standard.

Summary: Read the Contract, Ignore the Sales Pitch

When comparing quotes, don’t just look at the price. Ask these three questions:

1. How long is the Inverter warranty?

2. If my roof leaks due to installation, how many years do you cover? (Workmanship Warranty)

3. If the manufacturer goes bankrupt, what support do you offer?

Conclusion: True protection doesn’t come from a distant “25-year performance promise,” but from a local installer who is responsive and brave enough to take responsibility for their own “workmanship.”