Help Centre
Real answers to real questions -- search or browse by category below.
Help Centre
Straight answers to the questions Melbourne homeowners, builders and developers ask most about concrete, excavation, foundations and retaining walls.
Browse 609+ answered questions.
All Questions
Can screw piles be installed in confined-access rear yards?
Yes — this is genuinely one of screw piles' strongest advantages, since compact rigs can install them in narrow rear yards and…
Read Answer Retaining WallsDoes removing a retaining wall need council approval too?
Often, yes — if the wall is genuinely holding back soil that would otherwise move or affect a neighbouring property, removing it…
Read Answer Retaining WallsCan a retaining wall double as a garden seat or planter box?
Yes, genuinely a popular design choice — a lower retaining wall can be built with a wider capping suitable for sitting on,…
Read Answer Retaining WallsDoes a retaining wall need to be stepped on a long sloping boundary?
Often, yes — on a long boundary with genuinely varying ground levels, stepping the wall down in sections (rather than one continuous…
Read Answer Soil RemovalCan heavy soil removal trucks damage my nature strip or footpath?
It's a genuine risk on any job with repeated heavy truck movements, which is exactly why many councils require an asset protection…
Read Answer Soil RemovalDoes soil removal happen before or after the soil report is finalised?
The soil report genuinely comes first — it's based on boreholes taken from your site's current, undisturbed condition, so it needs to…
Read Answer Soil RemovalCan soil removal be avoided by reusing spoil on-site instead?
Partly, on the right site — genuinely usable spoil can sometimes be reshaped into garden beds, low mounds, or level fill elsewhere…
Read Answer Site CutsHow is a site cut different on a battle-axe block?
Access is the genuinely defining difference — a battle-axe block's narrow driveway handle often limits what size machinery can reach the rear…
Read Answer Site CutsCan a site cut be reversed or backfilled later if plans change?
Technically yes, but it's genuinely not a simple undo — backfilling a cut needs properly compacted, engineered fill to be structurally reliable…
Read Answer Site CutsDoes a site cut change how stormwater drains from my block?
Yes, genuinely — reshaping your block's levels changes where water naturally flows, so a site cut is designed alongside a stormwater plan,…
Read Answer ExcavationCan excavated material be tested before it’s removed from site?
Yes, and on some sites it's genuinely required — soil testing before removal confirms whether the material is genuinely clean fill or…
Read Answer ExcavationDoes excavation need traffic management on a busy street?
On a genuinely busy road, yes — where trucks, machinery or spoil bins need to enter and exit the site, or where…
Read Answer ExcavationCan excavation be done around an existing swimming pool?
Yes, but it's treated as genuinely higher-risk work — excavating near an existing pool shell can affect the ground supporting it, so…
Read Answer Plain & Coloured ConcreteCan I see a physical sample before committing to a concrete colour?
Yes — and it's genuinely worth insisting on one rather than choosing from a printed chart alone, since colour renders differently on-screen…
Read Answer Plain & Coloured ConcreteDoes coloured concrete need to be resealed more often than plain?
Broadly the same schedule applies to both, but colour retention gives coloured concrete a genuinely more visible reason to stay on top…
Read Answer Plain & Coloured ConcreteCan plain concrete be stamped or stencilled later for a pattern?
Genuine stamped concrete needs to be patterned while the slab is still fresh, so it's not possible to stamp an existing, fully…
Read Answer Exposed AggregateIs exposed aggregate a good choice for a pathway, not just a driveway?
Yes, genuinely a popular choice for pathways — the same slip resistance and textured look that suits a driveway works just as…
Read Answer Exposed AggregateCan exposed aggregate be pressure washed safely?
Yes — exposed aggregate is genuinely well suited to pressure washing as part of routine cleaning, and it's one of the more…
Read Answer Exposed AggregateDoes exposed aggregate get hot in direct summer sun?
Exposed aggregate genuinely runs cooler underfoot than plain smooth concrete or dark pavers in direct sun, since its textured, broken surface reflects…
Read Answer Concrete DrivewaysCan I get a driveway built in winter in Melbourne?
Yes — winter pours happen genuinely regularly in Melbourne, just with adjustments: slower curing times, closer weather monitoring, and sometimes protective covering…
Read Answer Concrete DrivewaysDoes a driveway need a different concrete mix to a standard slab?
Often, yes — a driveway carries vehicle loads and sits fully exposed to weather, so it's commonly specified with a higher-strength mix…
Read Answer Concrete DrivewaysCan a driveway be widened after it’s already been poured?
Yes — a new section can genuinely be poured alongside the existing driveway, with a proper joint tying the two together, rather…
Read Answer Waffle SlabsCan a waffle slab be extended after the original pour has cured?
Yes, but it's genuinely a fresh engineering exercise, not a simple continuation — your engineer needs to assess how a new section…
Read Answer Waffle SlabsDoes a waffle slab need a different reinforcement mesh to a raft slab?
The mesh grade and layout are genuinely specified per project rather than fixed by slab type — your engineer calculates reinforcement based…
Read Answer Waffle SlabsCan a waffle slab be built without waffle pods at all?
No — if the pods are removed, it genuinely stops being a waffle slab, since the pods are what create the ribbed…
Read Answer Raft SlabsCan a raft slab be repaired if it’s damaged after construction?
Minor surface damage — chips, hairline cracking — can genuinely be repaired without much disruption, in the same way any concrete slab…
Read Answer Raft SlabsDoes a raft slab need a different sub-base prep than other slabs?
The basic principle is the same — a compacted, well-prepared sub-base — but a raft slab's sub-base prep is genuinely driven harder…
Read Answer Raft SlabsCan a raft slab be built in a single continuous pour?
Yes — a raft slab is genuinely designed to be poured continuously wherever practical, since the whole point of the raft is…
Read Answer House SlabsCan a house slab be built on a block with an easement running through it?
Generally, no — you can't build a permanent structure like a house slab directly over a registered easement (typically drainage or sewer),…
Read Answer House SlabsDoes a house slab need to be re-inspected years after construction?
There's no mandatory re-inspection schedule for a house slab once it's built and passed its original certification — a properly designed and…
Read Answer House SlabsCan a house slab be built during a heatwave?
Yes, but the process changes — extreme heat speeds up how fast concrete sets, so contractors adjust the pour timing (often starting…
Read Answer Builder GuidesDoes a builder need to provide site access instructions to a subcontractor?
Yes, genuinely important — clear site access details (gate codes, parking arrangements, any specific site rules) help a concrete subcontractor arrive prepared…
Read Answer Builder GuidesCan builders negotiate payment terms with concrete subcontractors?
Yes, generally — payment terms between a builder and their concrete subcontractor are genuinely negotiable, particularly for an ongoing, established working relationship…
Read Answer Homeowner GuidesShould I be present for the soil test on my property?
Not strictly necessary — soil testing is a genuinely technical process the geotechnical provider carries out independently, and your presence isn't required…
Read Answer Homeowner GuidesWhat’s the biggest mistake homeowners make when planning a concrete project?
Choosing based on price alone, without genuinely comparing scope and specification, is probably the single most common mistake — a significantly cheaper…
Read Answer Construction ProcessCan I request photos of work stages I can’t personally observe?
Yes, generally — many contractors are genuinely happy to provide photos of stages you can't personally observe, particularly reinforcement placement before it's…
Read Answer Construction ProcessDoes concrete work need a site supervisor present at all times?
Yes, genuinely — a properly professional crew works under appropriate on-site supervision throughout active work, ensuring quality and safety are maintained continuously,…
Read Answer Pricing & QuotesDoes a quote guarantee the work won’t be subcontracted?
Not automatically — using subcontractors for specific aspects of a project (excavation, for instance, alongside a concrete-focused primary contractor) is genuinely common…
Read Answer Pricing & QuotesCan I pay a concrete contractor in instalments?
Often yes, particularly for larger projects — a genuine staged payment arrangement (deposit, progress payment, final payment) is common practice, rather than…
Read Answer Pricing & QuotesDoes a concrete quote need to specify the delivery date?
Not always at the initial quoting stage — a genuine specific pour date is often confirmed closer to the actual work, particularly…
Read Answer Council RequirementsCan council requirements change partway through a long project?
In principle, regulations can genuinely update over time, though your specific approved permit generally remains valid for the approved scope under the…
Read Answer Council RequirementsDoes council have a say in what concrete colour I choose?
Generally not for a standard residential driveway or path — colour and finish choices are typically a genuine personal decision, not something…
Read Answer Building PermitsDoes a pool need a separate building permit to the house?
Yes, generally — a swimming pool typically requires its own separate building permit, distinct from your house permit, reflecting its own specific…
Read Answer Building PermitsCan a building permit application be lodged online?
Often yes — many building surveyors offer genuine online or digital lodgement options for permit applications, streamlining what was traditionally a more…
Read Answer Building PermitsDoes a building permit need to be displayed on site?
Yes, generally — Victorian regulations typically require permit details to be genuinely displayed on site during construction, allowing inspectors or council officers…
Read Answer EngineeringWhat happens if two engineers disagree on a design approach?
Genuine professional disagreement between engineers can happen — engineering, like many technical fields, sometimes allows more than one valid approach, and reasonable…
Read Answer EngineeringDoes engineering certification cover the whole build or just the slab?
This genuinely depends on your project — a single engineer might certify just your slab, while a broader structural design (framing, upper…
Read Answer EngineeringCan an engineer be held liable if a design later fails?
Yes, genuinely — a registered engineer carries real professional liability for their certified designs, which is exactly part of why certification is…
Read Answer Soil ReportsDoes a steep site need more soil testing than a flat one?
Often yes — a steep or sloping site can genuinely have more variable soil conditions across its area than a flat, uniform…
Read Answer Soil ReportsCan a soil report identify asbestos or other hazards?
Not automatically as part of a standard geotechnical assessment — asbestos and similar hazard identification is genuinely a different, specific type of…
Read Answer Soil ReportsDoes a soil report expire if construction is delayed for years?
For a genuinely long delay — several years — a fresh soil report is worth considering, since ground conditions can change meaningfully…
Read Answer FoundationsWhat’s the difference between a footing and a foundation?
"Foundation" is the broader term for your entire below-ground structural system supporting your building, while "footing" typically refers to a specific structural…
Read Answer FoundationsDoes a foundation need reassessment after a flood?
For a significant flood event, particularly one causing genuine soil saturation or visible ground disturbance, a professional assessment is worthwhile to confirm…
Read Answer FoundationsCan a foundation be designed to allow for a future second storey?
Yes — if you tell your engineer upfront that a second storey is a genuine future possibility, they can design your initial…
Read Answer Commercial ConcreteDoes commercial concrete pricing include waste levy costs?
Often yes, though this genuinely varies between contractors — waste levy fees applicable to disposal of excess material or demolition waste are…
Read Answer Commercial ConcreteCan commercial concrete work be scheduled around a lease changeover?
Yes, genuinely common — fit-out and concrete work is frequently scheduled specifically around a lease changeover window, when a tenancy is vacant…
Read Answer Commercial ConcreteDoes commercial concrete need a specific slip rating for public areas?
Often yes — public-access commercial areas can be subject to specific slip resistance standards, particularly relevant for entryways, ramps, and areas with…
Read Answer Bored PiersWhat happens if a bored pier hole partially collapses while drilling?
If a hole shows signs of instability during drilling, an experienced contractor stops and addresses it — options include temporary casing to…
Read Answer Bored PiersCan bored piers be installed in sandy soil?
Yes, though sandy soil brings its own genuine considerations — looser sand can be more prone to hole collapse during drilling than…
Read Answer Bored PiersDoes bored pier diameter affect how deep it needs to go?
Yes, genuinely — diameter and depth work together in your engineer's design, with a wider diameter pier sometimes able to achieve adequate…
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