Skip to content
What we build

Four things, done properly.

Karri & Co does extensions, renovations, rebuilds and alfresco work across the Perth metro area — and nothing else. A builder running estate homes, commercial fit-outs and heritage renovations at once is running three businesses with one set of trades.

  • 01From $250k

    Home extensions

    Ground-floor and upstairs additions that match the original house rather than argue with it.

    Almost every extension enquiry we take starts the same way. The house is too small now, but the block is good, the neighbours are decent and nobody wants to start again in an outer suburb with a forty-minute commute.

  • 02From $180k

    Full renovations

    Older Perth homes brought up to standard without stripping the character out of them.

    Perth has a lot of solid double-brick homes with original jarrah under the carpet, a kitchen that has been patched twice and wiring that predates the RCD. They are worth keeping, and they are genuinely difficult to renovate well.

  • 03Demolition from $35k

    Knock-down rebuilds

    When the block is right and the house is not. Demolition through to handover, one contract.

    Some houses are not worth renovating. The floor plan fights you, the ceilings are low, the orientation is wrong and every fix uncovers two more. Meanwhile the block, the street and the school catchment are exactly where you want to be.

  • 04From $45k

    Alfresco and outdoor

    Outdoor rooms built for a Perth summer and the wind that comes with it.

    An alfresco is the highest-use room most Perth families add, and it is the one most often built badly. Flat-roofed patios bolted to a fascia, posts sitting in the wrong place, a roof line that ignores the house entirely.

Before you ring

The questions we get most.

These are the ones people ask before they have decided which job they are doing. Questions specific to a single service sit on that service page.

What does the site visit cost?

Nothing. We come out, walk the block with you, and give you an honest read on whether what you are planning works — including when the answer is that it does not. There is no charge and no obligation attached to it.

What does a fixed price actually mean?

One number covering the trade schedule, materials and site costs, signed before construction starts. It changes only if you ask for something different, and any variation is quoted and signed by you before work begins on it. It is not a range and it is not an estimate.

How long is the wait to start?

Typically eight to twelve weeks from signed contract to first day on site, depending on how long approvals take. We only run a set number of sites at once, which means the supervisor is actually on yours, and it also means we cannot start everything the week you ask.

Are you registered and insured?

Yes. Karri & Co holds builder registration BC 10482, home indemnity insurance on every job that requires it, and $20 million public liability cover. Certificates are provided with the contract, not on request.

Which suburbs do you build in?

Across the Perth metro area, from Fremantle up to the northern coastal suburbs and out to the river south. If your suburb is not on our service areas page, ring us anyway — chances are we still come out.

Do you work with an architect?

Often, and it usually goes well. If you already have drawings we will price them and tell you plainly where we think the documentation is thin. If you do not, our design stage covers it.

What happens after handover?

You get every certificate and warranty document as a set, and we book a six-month return visit on the day of handover. At six months we go through the whole job again and fix whatever has shown up. Statutory structural warranty runs for six years.

The next step

Come and have a look at the house.

Free to have us out, about an hour on site, and you leave with a written summary of what is feasible and a realistic budget band.

CallBook a site visit