How to choose a solar installer in Singapore.

The right installer is licensed, transparent on the quote, and stands behind its warranties. Here are the green flags to look for, the red flags to walk away from, and the questions that protect you.

Start with an honest survey See your numbers first

Read the signs

Green flags, red flags.

You can tell a lot before you sign anything. Here is what good looks like, and what should make you pause.

Green flags

Proper scaffolding budgeted in, never cut to win the job
The team that quotes is the team that installs
BCA-licensed, and happy to show it
A clear, itemised quote with nothing vague
Tier-1 panels with real product and performance warranties
A written workmanship warranty and references you can call

Red flags

A suspiciously cheap quote that has shaved the scaffolding
Cannot say who actually installs, or quietly outsources it
Pressure to sign today, or a deal that expires tonight
A vague lump-sum quote missing permits or connection
Unbranded, no-name panels and inverters
A large upfront deposit, or cash only

The scaffolding flag is the single clearest tell. A quote that quietly drops it is cutting worker safety, not overhead. See what proper site safety looks like on a Singapore install.

Before you sign

Six questions worth asking.

A good installer answers all of these without flinching. Hesitation on any of them tells you something.

Do you use proper scaffolding, and to what extent?

Are you the ones installing, or is any of it outsourced?

Exactly which panels and inverter, and what are the warranties?

Is the quote all-in, including permits, connection, and electrical work?

What does your workmanship warranty cover, and for how long?

Can I speak to two recent customers near me?

Or skip the vetting

This is literally why Sunnify exists.

We have nothing to sell you, so we have no reason to oversell. We give you the honest numbers first, and when you are ready, we hand over to our BCA-licensed installer partners, who handle the survey, design, and installation to Singapore’s strict site-safety standards. One clear path, no sales games.

Book a site survey

Common questions

Choosing well.

Be wary of door-to-door pitches, "today only" pricing, and any installer asking for a large deposit before showing you a written, itemised quote. A legitimate installer gives you time to decide, puts everything in writing, and never needs to rush you.

Rarely. A quote far below the others has usually compromised somewhere you cannot see, often on scaffolding and site safety, or by outsourcing the install. Compare the equipment, the warranty, and who actually does the work.

Usually, yes. Panels and inverters run for decades, so strong product, performance, and workmanship warranties protect a five-figure investment. A thin warranty is a quiet red flag.

ME03 is the Building and Construction Authority licence for mechanical and electrical works, including solar installation and grid connection in Singapore. An installer without it cannot legally carry out or supervise the electrical work on your system. Ask to see the licence, or verify it on the BCA directory, before signing.

Typically one to three days for a standard 10 to 20 kWp system, assuming good roof access and no structural complications. Scaffolding erection and removal add roughly half a day each. The SP Group grid connection application takes additional weeks but requires no one on site.

A reasonable deposit is 10 to 30 percent at signing, with the balance paid on completion or split between materials delivery and system commissioning. Avoid paying a large upfront deposit before panels arrive on site, and never pay the full amount before work begins.

Your installer manages the SP Group application as part of the job. You sign a connection agreement, but the installer submits the technical documents, arranges the metering inspection, and coordinates the grid tie-in. Confirm upfront that this is included in the quote.

Generally no planning permission is required for solar panels on a private landed home, provided the installation meets standard guidelines on height and setback from the roof edge. Your installer confirms this for your specific property before work begins. SP Group and EMA approval for the grid connection is handled separately.

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