Stair-step crack following joints in an exterior brick wall

Underpinning Melbourne

Underpinning reinforces existing footings where a qualified assessment shows they need support. We connect Melbourne homeowners with registered building practitioners for an inspection and free on-site quote.

Call 0422 128 667

We connect you with BPC-registered building practitioners

Request a free on-site quote

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Tell us what you've noticed. Photos can be discussed when we text you.

Your details are used to respond to your enquiry. Privacy Policy No obligation. We'll text you to arrange a time.

No obligation. We'll text you to arrange a time.

Your enquiry goes to our team, who connect you with a BPC-registered building practitioner for your free on-site quote. We are a referral service, not a builder.

How it works

  1. Fill out the quick form

    As much or as little detail as you like. Photos of cracks or floors help.

  2. We text you

    We say hi and ask a few quick questions.

  3. A registered builder inspects your home

    They check the subfloor, the stumps and measure floor levels.

  4. Get a written, itemised quote

    Stump count, materials, permits and engineering, all spelled out.

  5. Review the contract

    Happy with it? Sign the contract. Victorian rules set deposit limits and a cooling-off period.

  6. Permit, then the works

    The builder supports the house, replaces the stumps and re-levels the floor.

  7. Final inspection and sign-off

    Your building surveyor issues a Certificate of Final Inspection.

What underpinning is

Underpinning supports or strengthens foundations. Restumping replaces stumps beneath a raised floor, while re-levelling addresses floor levels. These are different jobs, so a builder or engineer should diagnose the cause before quoting.

Methods can include mass concrete or bored piers, screw piles or resin injection. The method depends on the assessed structure and ground conditions.

Signs to investigate

Stair-step brick cracks, sticking doors and uneven floors are clues, not a diagnosis. Changes in a wall or footing warrant a professional assessment.

A geotechnical report confirms soil conditions for a particular property. A suburb alone cannot establish soil class or the right repair. CSIRO foundation guidance

How the work is planned

A registered practitioner inspects the property, and an engineer can specify a foundation solution where needed. Ask for a written scope showing the proposed method, footing details, permit and engineering.

Underpinning is structural work. Arrange the building permit before work starts. Victorian council guidance

What affects the quote

Stump count, subfloor clearance and access affect the amount of work.

Footing depth and soil conditions, damaged bearers or joists, and the amount of re-levelling can change the scope.

Allow for any required plaster and door adjustments, permits and engineering in a written quote.

Choosing the right next step

If cracking, movement or floor changes are ongoing, ask when to involve a structural engineer. The inspection should establish whether underpinning, restumping or another repair is appropriate.

Compare written quotes by the proposed method, scope, permits and engineering rather than a headline price alone.

Published underpinning guide ranges

WorkPublished guide range
Mass concrete or bored piersFrom around $1,500 per pier
Screw pilesAround $900 to $3,000 per pile
Resin injection underpinningFrom around $2,500 per job
Permit and engineeringAllow around $1,500 to $3,000

Published Melbourne price guides, October 2026. Your builder's written quote is the price to rely on.

A registered building practitioner assesses the structure before providing a written, itemised quote.

Compare stump count, footing details, access, re-levelling, permits and engineering.

Ask each builder to explain what is included and what would trigger a variation.

Frequently asked questions

No. Underpinning reinforces footings; restumping replaces stumps under a raised floor. A builder or engineer should diagnose the cause before quoting.

No. Cracks are a clue, not a diagnosis. Have the movement assessed before choosing a repair.

Underpinning is structural work. Ask the registered practitioner about the building permit before work starts.

The structural and ground assessment determines the method. Ask for the reason behind any proposed pier, pile or resin solution.

Compare the proposed method, scope, permits, engineering and any repair work outside the foundation itself.