Here's the honest version: the cheapest solar or battery quote usually ends up costing you the most. Not on day one. Over the next ten to fifteen years, when the system has to actually work.

A solar and battery system is not a product you buy off a shelf. It's an electrical installation bolted to your roof and wired into your switchboard. The price on the quote covers the gear, the design, the people who install it, and the business that answers the phone when something goes wrong. When a quote comes in thousands below the rest, one of those four things has to be cut.

We're not saying the dearest quote is the best one either. We're saying price tells you very little until you know what's behind it.

Where solar system savings actually come from

A cheap quote is cheap because something was taken out. It's almost always one of these.

• The hardware. Panels, inverters and batteries from brands with no local office, or a model swapped on install day for whatever was in stock.
• The labour. Subcontract crews paid per job, not per hour. The faster they finish, the more they earn. Your roof is where that time gets saved.
• The design. No site visit. A quote built off a satellite photo, with no look at your switchboard, your roof condition or how you use power.
• The after-sales. No service team, no one monitoring the system, and a warranty that only holds while the company does.

What can happen when you choose the cheapest quote?

A good share of our service work is on systems we didn't install. These are the calls that come up again and again.

The installer who vanished

A family buys the cheapest system on offer. Three years later the inverter throws a fault. They ring the installer and the number is disconnected. The company has folded, and the workmanship warranty went with it. The inverter brand has no Australian office, so the product warranty is a form that goes nowhere. They pay for a new inverter in full, on a system that was meant to be covered for ten years.

The leak nobody owned

The crew was in and out in half a day. The first proper winter rain shows a stain on the ceiling. Cracked tiles under the array, and roof penetrations sealed with a dab of silicone. The installer blames the roof. The roofer blames the installer. The owner pays for the panels to come off, the roof to be repaired and the panels to go back on. The saving on the quote is gone several times over.

The battery that couldn't do the job

The quote said "battery ready" and "blackout protection". Nobody checked the switchboard or asked what the household wanted backed up. First outage, the house goes dark with a full battery on the wall. Backup was never wired in. Getting it done properly means a switchboard upgrade and a second install, at a price higher than doing it right the first time.

The system that never performed

Panels laid across a shaded section of roof because it was the easiest place to put them. An inverter too small for the array. No monitoring set up, so nobody notices. The owner finds out two years later when the bills haven't moved. The system works. It just makes far less than the quote promised, every day, for the life of the system.

None of these people were careless. They compared prices because price was the only thing the quotes made easy to compare.

7 Things to look for when you compare solar quotes

Line your quotes up against these seven things before you look at the bottom line.

1. ‍Site visit
   What good looks like: Someone inspects your roof, switchboard and meter before you sign
   Red flag: Quote from a satellite image only
   ‍
2. Equipment
   What good looks like: Exact brand and model listed for panels, inverter and battery
   Red flag: "Tier 1 panels" or "or equivalent"
   ‍
3. Manufacturer support
   What good looks like: The brand has an Australian office that handles warranty claims
   Red flag: Claims go back through the installer only
   ‍
4. Who installs it
   What good looks like: Named, accredited installers the company stands behind
   Red flag: "Our install partner will be in touch"
   ‍
5. Workmanship warranty
   What good looks like: Written, with a clear term, from a business with a track record
   Red flag: Long warranty from a company two years old
   ‍
6. Design:
   What good looks like: Sized to your usage, with shading and backup needs covered
   Red flag: Same system size quoted to every house
   ‍
7. After-sales
   What good looks like: Monitoring set up, a service team, a local number
   Red flag: Sales contact only, no service line

If two quotes pass all seven, then compare price. That's a fair fight.

Six questions to ask every installer

A good installer answers these without blinking.

1. Who will be on my roof, and do they work for you?
2. What exact models am I getting, and will that change on install day?
3. If the inverter fails in year six, who do I call and who pays?
4. How long have you been trading under this name?
5. Will the battery run my house in a blackout, and which circuits?
6. Who monitors the system after install, and how do I reach your service team?

Compare the outcome, not the quote

The right question is not "what does it cost?" It's "what will this cost me, and save me, over the next fifteen years?" A system that costs more and works every day beats one that costs less and gets replaced at year four.

The cheapest option might still be right for you. Just make sure you know what's been left out before you sign.

If you've got quotes in hand and want a second set of eyes, bring them to us. We'll walk through them with you line by line, including the ones that aren't ours. Free consultation, no obligation.

Get in touch.