When two solar quotes look similar, the warranty is often where they quietly differ. Many Goa buyers see the phrase “warranty included” and assume one promise covers everything. In reality, a rooftop system carries several separate covers, issued by different parties, each with its own terms. Understanding them before you sign makes it much easier to compare quotes and to know who to call if something goes wrong. At Solar De Goa, we encourage buyers to read the warranty paperwork as carefully as the price.
Last updated: 6 October 2026
Want every warranty document listed against your quote? Contact Solar De Goa and we will walk you through it.
Direct Answer
A solar system usually carries four kinds of cover: a panel product warranty, a panel performance warranty, an inverter warranty, and the installer’s workmanship warranty. They are separate, they are issued by different parties, and each has its own period and exclusions. We do not state warranty years here because they differ by manufacturer and model. Check the warranty document attached to your quote.
The Four Kinds of Cover
| Cover | Usually issued by | What it generally addresses |
|---|---|---|
| Panel product warranty | Panel manufacturer | Manufacturing defects in the panel |
| Panel performance warranty | Panel manufacturer | Output falling below a stated level over time |
| Inverter warranty | Inverter manufacturer | Faults in the inverter |
| Workmanship warranty | Installer | Installation quality, wiring, mounting and related work |
Mounting structures and cables may carry their own terms, so ask whether they are covered separately.
Product vs Performance Warranty
A product warranty is about defects: a panel that fails because of how it was made. A performance warranty is about output: it describes how much power a panel should still deliver after a stated number of years. The two have different periods and different claim steps, so never treat them as one promise. The actual terms are in the manufacturer’s document, not in a sales brochure.
Inverter Warranty
The inverter does the daily work of converting panel output for your home, so it is a common point of service calls. Ask who handles claims, whether the manufacturer has a service presence in Goa, and what happens if a unit needs replacement. Also ask whether the warranty period can be extended, and on what terms.
Workmanship Warranty
This is the cover many buyers overlook. Panels and inverters can be excellent, but a poor installation can still cause problems. A workmanship warranty is the installer’s own commitment on mounting, wiring, earthing and roof work. Ask for it in writing, with its period and what it excludes. Electrical, earthing and inverter work must always be done by qualified professionals, since that also affects whether a claim is accepted.
Why Coastal Installation Quality Matters for Claims
Goa’s humid, salty air and heavy monsoon put extra stress on structures, fasteners and connections. A manufacturer may ask whether a system was installed and maintained properly before accepting a claim. That makes sturdy mounting, careful sealing and clean records valuable. Our guide to first-time solar buyers in Goa covers the other questions worth asking installers.
How Solar De Goa Approaches Warranty Paperwork
We believe a warranty is only useful if you can find and understand it later. Before installation, we recommend that you receive the warranty document for each component, along with the installer’s own terms. If you are comparing installers, our guide to choosing the best solar company in Goa shows what to weigh beyond price. You can also see our residential solar services for homes.
Questions to Ask Before You Sign
- Which parties issue each warranty, and are the documents attached to the quote?
- What does each cover exclude, such as damage from external causes?
- How do I raise a claim, and who is my first contact?
- Is service available locally in Goa for each component?
- Is the installer’s workmanship warranty written down?
Documents to Keep
Store these together, on paper and as photos or PDFs:
- The signed quote and invoice
- Each manufacturer’s warranty document, with serial numbers
- The installer’s workmanship warranty terms
- Commissioning or handover records
- Service and cleaning records, if any
FAQ
What does a solar panel warranty cover?
It depends on the type. A product warranty usually addresses defects, while a performance warranty addresses output over time. Read the manufacturer’s document for the exact terms.
How long is a solar panel warranty?
Periods differ by manufacturer, model and cover type. Check the warranty document on your quote rather than relying on a general figure.
Is the inverter covered by the panel warranty?
Usually not. The inverter normally has its own warranty from its manufacturer, with separate terms and claim steps.
Who do I call to make a warranty claim?
It depends on the issue. A panel or inverter fault typically goes through the manufacturer, while installation issues go to the installer. Ask your installer to explain the process in writing before you sign.
Can poor maintenance affect a claim?
It can. Some warranties set conditions around installation and care, so keep records and follow the manufacturer’s guidance.
Final Verdict
Treat warranty as four separate covers, not one promise. Compare quotes on the documents behind them, and keep your paperwork organised from day one.
Ready to compare quotes with confidence? Contact Solar De Goa and request a quote with every warranty document listed.