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Is my house sinking?

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How to tell if your house is suffering from foundational problems at foundation level

As your home sinks deeper into the ground upon which it’s built, structural challenges will reveal themselves visibly, both inside and outside the house. The sinking causes an immense amount of force to be exerted on the house itself, straining your home’s floor, walls, ceiling and even the roof.

Sinking is often an indicator of a home suffering from subsidence. If the sinking isn’t stopped, these house foundation problems may multiply, which means the cost of repairs will escalate to hurt your wallet. Working out whether or not you’re living in a sinking house isn’t too hard. Read on for the sure-fire indicators below.

Cracked brick work

Wall Cracks

Sometimes wall cracks are purely cosmetic. Other times, the cracks indicate structural issues brought on by your house sinking. If your wall cracks appear stepped, appear in both the internal and external walls of your house as well as the corners of walls, your house may be sinking.

Wall crack in the corner of a room

Ceiling and Cornice Cracks

Just like wall cracks, ceiling cracks can be superficial but can also indicate deeper structural problems due to the sinking of your home. The sinking places pressure upon the entire house starting in the foundations. This travels up walls into your cornices and ceiling, causing them to crack.


Doors and Windows Jamming

If you can’t close or open your doors and windows without them jamming, there’s a likelihood the foundation of your home has sunk, unevenly. What was initially level isn’t anymore. It’s this lack of balance in the structure’s foundation that causes doors to hit the floor when you open them or has walls squeezing windows in so they can’t move.


Leaning or Off-Level Walls

The source of leaning or off-level walls is the same as jammed windows and doors. As your house sinks, the unevenness of your home’s foundations can cause walls to lean one way or another. Leaning or off-level walls are horribly dangerous if left unchecked and unfixed. They have the potential to fall over and cause injury or even death.


Sloping Floors

If you have sloping floors, the reason is again, unevenness in the foundations of your home due to sinking. Your floors will slope as one side of the house sinks downwards more than the other. To double check for a sloping floor, just place a ball on the floor and see if it rolls away from you. If it does, it’s likely you’re in a sinking house.


Gaps Between Walls & Floors

As the foundation underneath your home sinks, the floors pull away from the base of your interior walls causing gaps to appear. The sinking of your home may also result in a floor that becomes bouncy as you walk upon it. This is likely caused by the ground pulling away from the upper parts of your home’s structure. This is dangerous because this indicates your floor’s support system is beginning to sag and weaken.

Need to stop your house sinking further?

If your home is showing any of the indicators mentioned on this page, you may be living in a sinking house. For safety’s sake, it’s worth having your house double-checked. We’d be happy to inspect your house for FREE.

When you work with us, we promise

  • Free structural inspections
    We take a look at your sinking house at no charge.
  • Personal, friendly service
    We’ll treat your home as if it’s ours.
  • Simple, transparent quotes
    Our sinking house repair quotes come with easy to understand computer-generated drawings that detail our proposed solution.
  • Minimal disruptions to your life
    Lifting and stabilisation of your sinking house shouldn’t take more than a day.
  • Minimal disruptions to your home
    We don’t use underpinning and we don’t knock down anything.
  • Affordable pricing
    Unlike many other building companies, we typically only charge between $4,000 to $8,000 to underpin and lift a sinking house. See our full list of prices.
  • Permanent fixes
    We’re thorough in what we do, a sinking house we stabilise stands firm for good.
  • 10-year warranty
    In the rare case your house sinks again, we’ll be back too, at no extra cost.

Book a FREE inspection of your sinking house today!

Book a FREE inspection of your sinking house today!

Don’t just take our word for it

  • We’re the Experts in Wall Crack Repair, Foundation Stabilisation and Damp Treatment

    What you can expect

    Buildfix truck icon

    Simple, transparent quotes

    Our quotes are easy to understand and accompanied by drawings detailing our solutions. No technical jargon – we promise.

    Buildfix cog icon

    Fixed, affordable prices

    Once the price has been quoted, that’s what the job is going to cost. We don’t add extra costs at the last minute. No tricks.

    Carry out repairs for free

    Permanent repairs

    Anything we repair or enhance stays that way. Otherwise we come back to carry out repairs again for FREE.

    Ten year warranty

    10-year warranty

    You’re covered for 10 years from the day we finish our work.

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