Check my roof

Know your real number before anyone quotes you

We measure your roof from the government's LiDAR survey and show the installed price, the saving and the payback. No phone call, no visit.

A home in Halswell, ChristchurchMeasured: LiDAR 2025
Aerial photo of a Christchurch home with its roof outlined
Aerial and elevation © LINZ (CC BY 4.0)

Roof faces

FacePitchSun*
NW15°1,318
NE13°1,315
SW14°1,032
SE15°1,028

*kWh a year per kW of panels

Installed price, incl GST
$12,100 to $16,400
System
7.65 kW, 17 panels
Off the bill
~$155 a month
Pays for itself
7.5 years
Built on public data LINZ LiDAR roof survey Electricity Authority MBIE power prices Installed prices from NZ quotes

From your address to a number you can trust

Nothing to install, and nobody calling.

  1. 1

    Type your address

    We find your roof in the government's aerial laser survey of New Zealand.

  2. 2

    We measure it

    Every face: pitch, direction and sun. If we can't measure it, we tell you.

  3. 3

    See the sums

    A fair installed price, your saving and the payback, with every assumption shown. Quotes only if you ask.

Two paybacks, side by side

We show our estimate next to the typical figure on installer quotes, with every assumption, so you can ask an installer to explain the gap.

7.5 yearsSolarCheck estimate, Halswell home
6.6 to 6.9 yearsMedian on 279 NZ installer quotes

Why ours differs: we assume power prices don't rise, and value the solar you use at your area's variable rate, never the daily charge. On some roofs ours comes out shorter. We show it either way.

Installer median: MySolarQuotes, 1 Sep 2026, 279 residential quotes. Example: SolarCheck engine, 30 Oct 2026, $320/mo bill, no battery.

What your check includes

Your solar checkHalswell, Christchurch
$12,100 to $16,400

A fair installed price for this roof, incl GST. It narrows once an installer has seen the roof.

7.65 kW17 panels
~$155off the bill a month
7.5 yearsto pay for itself
Full breakdown, free with a texted code: your bill before and after the daily charge, line-by-line pricing, 10-year savings and green-loan rates for your bank.

  • Your roof, not an average

    Measured from LINZ LiDAR, face by face. Most online calculators start from your power bill and estimate the roof.

  • A price you can hold quotes against

    From real NZ installed prices, sized to what fits your roof. GST is always shown.

  • The bill after the daily charge

    Solar doesn't remove lines charges, so we show the bill you'll actually get.

Before you pay a deposit

Five things to have in writing before any money leaves your account.

  • The price, against your measured roofIs the system sized to what your roof can hold, and is the price inside the range?
  • What the deposit pays forHow much, when the rest is due, and when the panels arrive.
  • Who the company isHow long it has traded, and its directors on the Companies Office register.
  • The exact equipment and warrantiesPanel, inverter and battery models, plus a workmanship warranty, in writing.
  • Who does the installLicensed electrical workers, a Certificate of Compliance and an inspection.
440

Solar complaints to Utilities Disputes in the year to 31 March 2026, up 105%.

UDL release, 16 Oct 2026

86%

Share of solar marketing complaints about returns that didn't materialise.

UDL release, 16 Oct 2026

$649,000

Owed to Solar Hub customers when it was liquidated on 13 October 2026.

Newsroom, 15 Oct; Stuff, 20 Oct 2026

How we make money

SolarCheck is free for homeowners. If you ask for quotes, we introduce you to up to 2 installers who meet our published criteria, and each pays us about $[fee TBC] + GST. You see your number either way.

  • Cost to youFree
  • Installers who get your details0, 1 or 2. You choose
  • Details resoldNever
  • Installer criteriaPublished

Got a solar quote? See what your measured roof says it should cost

Quote check is being built. Check your roof now and your measured price will be ready when it opens.

Being built