How to Choose a Trustworthy Solar Installer in Thailand
As demand for solar grows, more new providers keep entering the market. Some are experienced and reliable — others aren't. This article covers what consumers should check before choosing an installer.
Check Real Experience and Past Work
A trustworthy installer should have real, verifiable installations to point to — not just stock photos from the internet. Ask how many years they've been in business, what kinds of projects they've done, and if possible, ask to see an actual installation site or speak directly with a past customer.
Be Wary of Unusually Low Prices
A price far below market average can signal low-quality equipment, skipped steps to cut cost, or no real after-sales support. Compare quotes from multiple providers and weigh equipment details and warranty terms alongside price — not just the bottom-line number.
Ask About Warranty Terms in Detail
Ask about warranty periods for the panels, the inverter, and the installation work separately, since each typically carries a different warranty length. Also ask what happens if something goes wrong during the warranty period — how the provider handles it, how long it takes, and whether there's any additional cost.
Proper Licensing and Registration
A trustworthy provider should have engineers holding the professional licenses required by law, and should correctly handle permit applications with the local electricity authority. If a provider can't clearly explain the permit process, that's a sign they may lack real hands-on experience.
Don't Rush Into a High-Pressure Sales Pitch
A provider pushing for a same-day decision with a "special discount" is a warning sign worth taking seriously. Deciding on solar should come with time to review information, compare options, and get every question answered before signing anything.
Transparency is something we take seriously
STR is happy to walk through equipment details, warranty terms, and the permit process clearly from the very first quote.
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