Real answers about our products, installation, and how we work.
Genuine solar panels, lithium and tubular batteries, inverters, and related equipment like fans, lighting, cameras, cables and accessories — all with manufacturer warranty.
Our head office is at No. 96D, N.U.D Road, Okeyeke, Abeokuta, Ogun State, with branches in Ibadan, Sagamu, Obantoko, and Quarry Road, Abeokuta.
We install. Cornerstone Solar has its own trained installation team — we don't outsource installation to third-party contractors.
Use our Solar Finder tool. It asks about the appliances you actually run, then calculates a real inverter, battery and panel recommendation based on your load — not a generic guess.
Yes. Every product we sell is genuine, certified equipment with the manufacturer's warranty — not grey-market or fairly-used imports.
Online orders are processed securely through Paystack. You can also arrange payment directly with our sales team via WhatsApp or phone.
We don't accept returns for change of mind, since every product is discussed with a solar expert before purchase to confirm it's the right fit. Faulty or wrong items can be reported within 48 hours of delivery for a replacement, repair, or refund. Full details are on our Return & Refund Policy page.
Yes, it's free to use and doesn't require any payment or commitment — it just gives you a system specification you can bring to us, or use to shop elsewhere.
Our branches are currently based in Ogun and Oyo States. Contact our sales team via WhatsApp to ask about delivery to your specific location.
WhatsApp is the fastest way to reach us: message us on WhatsApp. You can also call 09119991942 or visit any of our branches in person.
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