Buildfix
Buildfix technician injecting GeoPoly™ resin beneath the footings of a cracked brick wall, the resin spreading under the foundation to lift it back to level

Wall Crack & Foundation Relevelling

Cracked walls? Put your home back on solid ground.

Foundation relevelled, cracks repaired, done in 1–2 days.

Structural Engineers · Licensed Builders · Skilled Technicians

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15,000+Homes Repaired
20-YearStructural Warranty
1–2 DaysMost Repairs

GeoPoly™ resin injection — lift the foundation from underneath. The wall comes with it.

Timelapse: a real crack, a real lift

Find the Cause. Lift the Foundation. Reconnect the Wall.

Why the wall is cracking

A stair-step crack running up from the corner. A door that needs a shoulder to shut. A floor that slopes towards the back of the house. Three symptoms, one cause.

Nobody's wall cracks on its own. The ground under the footings moved first — reactive clay drying out under a Melbourne summer, a leaking pipe washing soil away, tree roots hunting moisture. The footings followed the ground down, and the brickwork cracked where it was pulled apart.

How the foundation comes back up

Fill the crack and paint over it, and the ground is still moving. Six months later, same crack, same spot, sometimes wider. Concrete underpinning fixes the ground, but it's weeks of digging under your home.

GeoPoly™ goes the other way. Resin is injected through coin-sized holes beside the footings, straight into the soil beneath. It expands, fills every void, firms up the soft ground, and with nowhere left to go, it lifts the footings back to level. Lasers track every millimetre in real time.

What the day looks like

You'll see it as it happens — the stair-step crack tightening as the footings come up, the door swinging shut on its own again, the floor sitting level under your feet. Then the technicians bond HelicalBar™ bars into the mortar joints across the crack and repoint the brickwork, colour-matched. The wall is reconnected as one piece, stronger than it was before the crack appeared. Most homes are done in 1–2 days, and you'd never know we were there. If the foundation issue returns, so do we.

Not sure whether it's the wall or the ground? That's what the free assessment answers. Cracks measured, floor levels taken room by room, the cause named, and a fixed-price quote on the spot.

What to expect

Here’s how we lift the foundation and repair the wall, from first visit to warranty.

Buildfix structural engineer assessing a cracked brick wall with a tabletStep 1

Free Structural Assessment

One of our structural engineers measures the cracks, takes floor levels room by room, and names what moved underneath — reactive clay drying out, a leaking pipe, tree roots hunting moisture. The repair plan for your foundation and your wall is designed on the spot.

Buildfix quote package showing structural repair detail, quote cover page, and repair method statementStep 2

Get Quote and Book

A complete quote package with drawings, method statement, and a fixed-price quote. The price you see is the price you pay. Book through the online portal when you're ready.

Buildfix technician injecting GeoPoly™ resin beneath the footings of a brick homeStep 3

GeoPoly™ Injection — Lift the Foundation

Coin-sized holes are drilled beside the footings. GeoPoly™ resin is injected into the ground beneath, filling the voids and firming up the soft soil. Then it lifts — the footings come back to level with lasers tracking every millimetre. You'll notice the cracks tightening as it happens.

HelicalBar™ reinforcement bars bonded into the mortar joints of a cracked brick wallStep 4

Reconnect the Wall

With the foundation back where it belongs, the technicians turn to the wall. HelicalBar™ bars are bonded into the mortar joints across the crack, the brickwork is reconnected as one piece, and the joints are repointed and colour-matched. You'd never know we were there.

Buildfix Completion Package — cover, 20-year warranty certificate and tax invoice fanned outStep 5

Receive Your Warranty

The Completion Package arrives a few days after sign-off — a full report with images, invoice, and your 20-year product and workmanship warranty documentation.

Real cracks, real homes, real lifts.

Buildfix jobs — the crack on the way in, the wall on the way out. Same bricks, same day.

Press the image for a closer look.

Stair-step crack in brickwork under a window tightened after the foundation was lifted back to level
Wide stair-step crack in red brick repaired after the footings were relevelled
Diagonal stair-step crack in a red brick wall repaired after the foundation was lifted
Gap opened above a window lintel in brickwork repaired after the foundation lift
Crack at the corner of a brick home repaired after the footings were relevelled
Crack in brickwork beneath a window sill repaired after the foundation was lifted
Crack in a cream brick wall repaired after the foundation was relevelled

Instant results.
Guaranteed to last.

The foundation lift and the wall repair, each backed for 20 years.

20YEARSWARRANTY

Every GeoPoly™ and HelicalBar™ repair is backed by a 20-year product and workmanship warranty — the resin, the bars and the work. More than 15,000 of them have been issued in nearly 15 years. If the foundation issue returns, so do we.

Ready to get your cracks checked?

Cracks measured, levels taken, cause named, fixed-price quote. It's free.

Structural Engineers · Licensed Builders · Skilled Technicians

Real homes. Real results

See how we’ve lifted foundations and repaired the cracks — across Melbourne and beyond.

Why choose Buildfix?

Buildfix brings structural engineers, licensed builders, skilled technicians, and the manufacturer together under one roof. For nearly 15 years, Buildfix has been delivering non-invasive structural repairs — saving homeowners the hassle and costs of traditional methods. What used to take weeks now takes just 1 to 2 days.

Why homeowners choose Buildfix:

Non-invasive technology. No digging under your home. No walls knocked down. No bricks replaced. You stay home while the work happens.
Guaranteed. Your repair is backed by a 20-year product and workmanship warranty. If the foundation issue returns, so do we.
One team, diagnosis to repair. Buildfix engineers assess your home and oversee the repair. Buildfix technicians carry it out.
The ground and the wall, at a fixed price. Most foundation repairs stop at the ground and leave the wall cracked. Buildfix relevels the foundation and reconnects the brickwork in the same job — a fraction of the cost of concrete underpinning, and if your job goes over, it's on us.

Structural Engineers · Licensed Builders · Skilled Technicians

Our technologies

Inside, the same story.

Arches, plaster corners and rendered walls — the foundation relevelled, the wall finished, and you’d never know we were there.

Press the image for a closer look.

Cracked brick arch over a veranda repaired and reconnected after the foundation lift
Stair-step crack in a block wall repaired after the foundation was lifted back to level
Crack in a rendered wall repaired and finished after the footings were relevelled
Crack in an internal plaster corner repaired after the foundation was lifted
Diagonal crack in an internal plaster wall repaired after the foundation was relevelled

Don't take our word for it

Read what our customers are saying.

Questions?

Our team is here to answer any questions you may have Monday – Friday 8am to 5pm AEST. Give us a call on 1300 854 115.

Buildfix structural engineer with a homeowner discussing cracked walls

Ready to get your home back on solid ground?

Get your cracks measured and your floor levels taken. It's free, takes 30–60 minutes, and you'll know exactly what's going on, how we'd fix it, and what that costs.

Structural Engineers · Licensed Builders · Skilled Technicians

Experts in Structural Repair

Non-Invasive. Permanent. Guaranteed.

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