Reblocking & Underpinning in Bendigo
Reblocking replaces the stumps under a timber floor. Underpinning stabilises footings under a slab or masonry wall. They fix different problems and we work out which yours is on site.
What reblocking & underpinning involves
Reblocking and underpinning get used interchangeably in conversation, which causes real confusion at quoting time because they are different jobs on different kinds of building. Reblocking — the same thing as restumping — replaces the stumps a timber-floored house sits on. Underpinning goes underneath an existing footing, usually beneath a slab or a masonry wall, and extends it down to more stable ground so the footing stops moving. If your house is a weatherboard on stumps, you almost certainly want reblocking. If it is brick on a slab or strip footing and one corner is dropping, underpinning is the conversation. Some Bendigo houses need both, typically where a brick extension on a slab has been added to an older timber-floored home and the two are moving independently — that junction is where you see the worst cracking, because two structures on two different footing systems are pulling against each other. Diagnosing it properly means looking at what the house is actually built on rather than what it looks like from the street: rendered weatherboard reads as masonry, and brick veneer is a timber frame with a brick skin, not a masonry wall. We check the subfloor, take levels, and look at where the cracks run and which way they taper, because a crack wider at the top tells a different story to one wider at the bottom. Both are building work requiring a permit, and underpinning in particular usually needs engineering input on the footing design.
When you need reblocking & underpinning
- You have been quoted for one and are not sure it is the right job
- A brick extension and the original timber-floored house are cracking at the junction
- Cracking runs through external brickwork rather than internal plaster alone
- One corner of a slab-on-ground section has dropped noticeably
- A building report has recommended footing work without specifying which
How the job runs
- 1
Establish what the house sits on
Stumps, slab, strip footing, or a mix — this decides the job, and rendered or brick-veneer walls regularly mislead people about it.
- 2
Read the cracking
Where cracks run and which way they taper indicates what is moving and in which direction, which narrows the cause before anything is dug.
- 3
Engineering where it is needed
Underpinning footing design usually needs engineering input. Reblocking generally does not, and we will not charge you for one you do not need.
- 4
Permit, then execute
Both are building work requiring a permit. The scope and the method are agreed in writing before we start.
What reblocking & underpinning costs in Bendigo
Reblocking is priced per stump, so it scales predictably with house size and subfloor access — the $400 to $700 per stump range applies. Underpinning is priced per pier and is substantially more per point, because each one involves excavating beneath an existing footing and pouring in stages. It also generally carries engineering costs on top. A job needing genuine underpinning is a different order of expense to a reblock, which is exactly why it is worth being certain which one your house actually needs before accepting a quote for either.
How do I get reblocking & underpinning quotes in Bendigo?
Submit your job details through Bendigo Restumping Co and local restumping professionals who handle reblocking & underpinning will contact you directly with quotes. The service is free and there is no obligation to accept any quote.
Reblocking & Underpinning questions
What is the difference between reblocking and restumping?
Nothing — they are two words for the same job. Reblocking is the older Victorian term and you will still hear it used by tradespeople and in council paperwork around Bendigo; restumping is the more common term now. Both mean replacing the stumps that carry a timber floor. Underpinning is the one that is genuinely different: it goes under an existing footing, usually a slab or masonry, to stabilise it rather than replacing anything.
How do I know if I need underpinning rather than reblocking?
It comes down to what is carrying the part of the house that is moving. A timber floor sitting on stumps gets reblocked. A slab or a masonry wall on a footing gets underpinned. The complication is that plenty of Bendigo homes are both — an older timber-floored house with a later brick-on-slab extension — and the cracking at the junction between them is what usually prompts the call. That case sometimes needs both, and it always needs someone to actually look at the subfloor rather than quote from photos.
Also need something else? See all restumping services we provide.