How to Choose the Right Solar Company in Kolkata & Howrah (2026 Buyer’s Checklist)
Solar has gone from niche to mainstream fast in West Bengal, and the number of installers advertising online has grown just as fast — not all of them reliable. Picking the wrong one doesn’t just mean a bad experience; it can cost you your PM Surya Ghar subsidy entirely, or leave you with an under-performing system and no one answering the phone six months later. Here’s exactly what to check before you sign anything. 1. MNRE Registration You Can Actually Verify Any installer handling your PM Surya Ghar application must be registered on the official portal for your area. Ask for their registration ID and cross-check it yourself at pmsuryaghar.gov.in rather than taking their word for it. If they can’t produce one, they cannot legally file your subsidy application — full stop. 2. ALMM-Listed, DCR-Compliant Panels — Named, Not Implied “Tier-1 panels” is not a specification — it’s marketing language. A trustworthy quote names the exact panel brand and model number, and that model must appear on MNRE’s official ALMM list. You can verify any model yourself at almm.mnre.gov.in. Non-DCR panels may be cheaper, but they’re not eligible for subsidy at all — so a suspiciously low quote using non-DCR modules isn’t a deal, it’s a disqualification waiting to happen. 3. An EPC Company, Not Just a Reseller There’s a real difference between a company that designs, procures, and installs your system end-to-end (an EPC — Engineering, Procurement, and Construction provider) and one that’s simply reselling equipment sourced from a third party with installation subcontracted out. EPC companies carry accountability for the whole job; resellers can — and often do — point fingers between “the equipment supplier” and “the installation team” the moment something goes wrong. 4. A Written, Itemized Quote A legitimate quote spells out exact panel and inverter models, BIS certification numbers, mounting structure specification, and a line-item cost breakdown — not a single lump “system cost” figure. If you’ve seen our solar cost breakdown for West Bengal, you already know roughly what fair pricing looks like; use it to sanity-check any quote you receive. 5. A Real, Local Office in Kolkata or Howrah An installer who operates only through WhatsApp and a mobile number has no accountability if something goes wrong after installation. Ask for a physical office address and, ideally, visit it or verify it exists before making any payment. 6. A Site Visit Before You Get a Final Quote Roof condition, shading, structure type, and available space all affect what system will actually work for your home. A company willing to give you a firm, final quote without ever seeing your roof is guessing — and you’re the one who pays for their guess later. 7. Warranty Terms in Writing — Not “25 Years” as a Verbal Promise Panel performance warranty, inverter warranty, and workmanship/installation warranty are three separate things, and each should be stated separately in your contract, not bundled into a vague “25-year warranty” claim. Ask specifically what happens if a panel underperforms in year 8, and get the answer in writing. 8. Milestone-Based Payment, Never 100% Upfront Reputable installers structure payment across milestones — advance, material delivery, installation completion, commissioning — not a single full payment before work begins. If a company insists on 100% upfront, that’s one of the clearest signals to walk away. 9. No “Guaranteed Subsidy” Promises Subsidy eligibility depends on your specific home, system size, and power utility category — no installer can honestly guarantee an exact subsidy amount before assessing your case, and applying is always free directly through the government portal. Be especially wary of anyone asking for a separate “subsidy processing fee” upfront; that’s not how the scheme works. Red Flags at a Glance What This Looks Like at Apris Solar We’re built specifically to pass every item on this checklist. As an EPC company registered and operational across Kolkata and Howrah, Apris Solar handles system design, equipment sourcing, and installation in-house — meaning one accountable team from your first site visit through to your subsidy landing in your account, not a chain of subcontractors. Every quote is itemized with exact ALMM-listed panel and inverter models, and every system starts with an actual site assessment, not a phone-based guess. If you’re comparing this checklist against a quote you’ve already received, or want to size your system first, our solar calculator gives you a real, personalized estimate in under a minute. You can also see how the numbers compare across on-grid and off-grid setups or revisit the full subsidy breakdown before you decide. 📞 WhatsApp us or visit apris.in/solar-company-contact-us for a free, no-pressure site assessment — and feel free to run us against this exact checklist when we call.