What is reblocking? Melbourne's word for restumping

Reblocking is restumping

If you have been quoted for “reblocking” and are wondering whether it is something different from restumping, relax: it is not. Both words describe the same job. The house is jacked up section by section, the old stumps under it are removed, new concrete or steel stumps go in on proper footings, and the floor is re-levelled. Melbourne firms typically advertise both terms, the crews are the same, and a quote written either way should read identically. The restumping hub covers the job itself from every angle.

The word worth being careful with is not restumping but underpinning, which is a different repair for slab and full-brick homes. If your quotes mix the terms, read restumping vs reblocking vs underpinning before signing anything.

Where the word comes from

Melbourne's Victorian and Federation houses were commonly set on blocks of river red gum, a dense, durable eucalypt that was cheap and everywhere in the nineteenth century. Replacing those blocks was, naturally, “reblocking”, and the word outlived the material. Red gum is remarkably rot-resistant, which is why so many original blocks lasted 60 to 100 years, but in Melbourne's damp clay nothing timber lasts forever.

By the time concrete stumps became the standard replacement in the second half of the twentieth century, the trade's name had already set. So Melburnians say reblocking, the rest of the country says restumping, and every contractor answers to both.

What Victorians specifically face

Two things make the Melbourne version of this job distinctive. The first is soil. Much of the city's west and north, roughly Footscray out to Werribee and up through Brunswick and Preston, sits on reactive basalt-derived clay that swells when wet and shrinks hard in drought. That seasonal movement works stumps loose, drops them in dry years and heaves paths and gardens around them, which is why reblocking demand in these suburbs is so steady.

The second is regulation. In Victoria, restumping generally requires a building permit, the work must be carried out by a registered building practitioner (there is a specific domestic builder registration class covering restumping and reblocking), and the permit is typically supported by an engineer's Regulation 126 certificate of compliance for the design. On top of that, any domestic building work worth more than $16,000 requires the builder to take out domestic building insurance before accepting a deposit, and almost every full reblock crosses that line. Our Victorian regulations guide explains each requirement and who checks it.

What reblocking costs

Despite the different word, Melbourne prices track the national ranges. Expect $500–$700 per stump supplied and installed, $15,000–$25,000 for a full weatherboard house and $20,000–$30,000 for brick veneer, with a partial job on 8–20 stumps at $4,000–$12,000. A full reblock runs 7–9 days on site. Permit fees, certification and insurance appear as line items on Victorian quotes, but they are administration around the same job, not a Melbourne premium. The full breakdown is in our restumping cost guide.

How to proceed in Melbourne

Start by confirming the problem is real: check your symptoms against the signs guides before anyone quotes. Then get three quotes from registered practitioners on an identical scope, and verify each registration with the state regulator. Insist that the building permit, the Regulation 126 certificate and domestic building insurance are named in the contract, not promised verbally. Our guide to choosing a contractor covers the comparison in detail, and the Melbourne directory lists reblocking firms by area.