Solar is cheaper when it goes on during the build
Installing solar during construction costs less than retrofitting it later. The scaffolding is already up, the roof is clear and unobstructed, cable runs happen before wall linings go on, and the switchboard can be specified correctly from the start. If you are building, this is the cheapest solar will ever be for your home.
Why build-time is cheaper
| During the build | Retrofitting later | |
|---|---|---|
| Scaffolding | Already up and paid for | A real line item |
| Roof access | Clear and unobstructed | Working around a finished, occupied home |
| Cabling | Through open framing | Fished through finished walls, or surface conduit |
| Switchboard | Specified correctly from the start | Upgraded later |
| Disruption | One — the house is a building site already | Two |
If you are building
Get my free quoteTalk to us before the roof goes on, ideally at design stage. Roof pitch, orientation and penetrations are all easier to get right before they are built. We can work alongside your builder and electrician.
If you are a builder or developer
Talk to us about a standing arrangementWe work with group builders and developers on standard packages across multiple homes. Consistent specification, predictable install windows, and a genuine differentiator on your build offering as buyers increasingly ask about running costs.
If you have just moved into a new build
Book a free quoteNew builds are our cheapest and fastest retrofit installs. Simple pitches, no mature-tree shading, modern switchboards, no asbestos, no surprises. Usually done in a day.
New build solar questions
This page is general information only and is not financial advice. Prices shown are indicative, are not a quote, and are confirmed in your tailored quote. Finance is subject to lender approval, and green loan rates and terms are set by the lender, not by Solar.co.nz.
Ready to stop overpaying for power?
Get a free, no-obligation quote from a local NZ team.