Quick answer
Pick an installer who is registered with KSEB and the PM Surya Ghar portal, uses DCR modules, gives written 25-year module and at least 5-year workmanship warranties, and can show completed installations near you. Never pay the full amount in advance.
Local checks for Kollam
- Look for installers with industrial roof experience if you run a unit: sheet and asbestos roofs need a structural audit.
- Backwater and coastal homes need hot-dip galvanised or aluminium mounting and a regular washing schedule.
- In the eastern rubber belt, ask for a shade study and higher mounting.
The 10-point verification we use
- Registered company / proprietorship with valid GST and address proof
- DISCOM empanelment (KSEB / TNPDCL) and PM Surya Ghar vendor registration for subsidy jobs
- Minimum 3 verifiable completed installations in the district (we call the customers)
- BIS-certified, DCR-compliant modules and branded inverters in the bill of material
- Written 25-year module performance warranty and ≥5-year workmanship warranty
- Proper earthing, lightning arrestor, surge protection and GI / aluminium structures
- Transparent itemised quote: no hidden “net-metering fee” or fake subsidy deductions
- In-house or contracted licensed electrician / supervisor on each site
- Photo-documented installation and handover pack (single-line diagram, warranty cards, meter papers)
- After-sales response commitment (service call within 48 hours) and no history of unresolved complaints
Compare quotes with our 12-point checklist, or ask for a free match on the installer page. Before roof day, read our roof-day checklist, and see answers to common questions in the solar FAQ. Back to solar in Kollam.
