Front of the Wheelers Hill home: recycled red brick, timber cladding and a dark roofline behind a stepping-stone path across the lawn

Custom homes, knockdown rebuilds and major renovations

Planned properly. Priced honestly. Built as promised.

What you can count on

  1. 01

    A real number in 7 days.

    Your Quality Build Estimate (QBE) is back with you within 7 days. A real figure to plan around, not a guess.

    How this works
  2. 02

    Fixed price. No builder variations.

    For knockdown rebuilds and new homes. Site risks that can't be tested are listed as a provisional sum before you sign, then locked into the fixed price by our third costing round. Want to change something yourself? You still can, through a formal variation.

    How this works
  3. 03

    You'll always know where your build is at.

    Your own client portal shows progress, documents and decisions. Questions get a reply within one business day.

    How this works
  4. 04

    Built to last, specified to perform the way you want.

    We set the comfort, air quality and running-cost targets with you at design stage, then build to them.

    How this works

Our story

We build as if it was our own

40+ years of building in the Cahill family. 25+ years personally. Every home we build gets the planning and care we'd want in our own.

About Primebuilt

Build Ready

How we get you from first call to fixed price.

Most building problems start before construction does. Build Ready finds them first. Tap a stage to see what happens.

More about Build Ready

  1. 01Intro callAbout 20 minutes

    We talk through your block, your brief, your budget and your timing. If we're not the right builder for it, we'll tell you straight.

  2. 02Discovery meetingIn person

    We meet in person to go through your brief, your block and your budget in more detail, and talk through what's possible.

  3. 03QBE (Quality Build Estimate): a real number in 7 daysWithin 7 days

    Your QBE is a costed estimate for your project, based on your brief, your block and the drawings so far. It's a real figure to plan around, so you can decide before you spend big on design.

  4. 04Design, documents and costing roundsAlongside your designer

    We work with your designer and consultants while final drawings, engineering, soil and energy reports are completed. We re-cost as the design develops, so the number stays real.

    For knockdown rebuilds and new homes, site risks that can't be tested are listed as a provisional sum, then locked into the fixed price by costing round 3. For renovations, unknowns are investigated here, and anything genuinely unforeseeable is shown to you in writing before work proceeds.

  5. 05FQE (Full Quantity Estimate): your fixed price4 to 6 weeks from complete documents

    Once we have complete documents (final drawings, engineering, soil and energy reports), your FQE comes within 4 to 6 weeks. On knockdown rebuilds and new homes, it's a fixed price with no builder variations.

  6. 06Contract and constructionTimeframe set in your contract

    You follow progress, documents and decisions in your own client portal, and questions get a reply within one business day. If you want to change something, you can, through a formal variation, so you always see the cost before you agree.

  7. 07Handover and aftercareYour keys, then checks at 30 days, 90 days and 12 months

    We walk you through the finished home and hand over everything you need to look after it.

    We come back for complimentary checks at 30 days, 90 days and 12 months after handover. If you'd like ongoing help after that, an optional aftercare programme is available.

What we build

Find your starting point.

We build across the Eastern suburbs and the Mornington Peninsula.

Start with a call

Tell us about your block and what you have in mind. If we're the right builder for it, we'll explain how Build Ready gets you to a real number.