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
What’s a realistic way to budget contingency for a concrete project?
A genuinely common approach is setting aside an extra 10-15% of your quoted price as contingency, covering the kind of unforeseen ground…
Read Answer Homeowner GuidesShould I get a second opinion if my contractor recommends major extra work?
For genuinely significant, costly recommendations — particularly anything structural — a second opinion is worth the modest extra cost and time, giving…
Read Answer Homeowner GuidesIs it normal to feel pressure to decide quickly on a quote?
Some genuine time pressure around a quote's validity period is normal (material costs do change), but feeling genuinely rushed or pressured into…
Read Answer Homeowner GuidesWhat should I know about my own legal rights during a concrete project?
As a homeowner, you genuinely have consumer protection rights around workmanship, statutory warranty periods, and the terms of your written contract, which…
Read Answer Construction ProcessDoes a concrete project include a defects liability period?
Many contracts genuinely include one — a defined period after completion where the contractor returns to fix any genuine defects at no…
Read Answer Construction ProcessWhat happens if a subcontractor is unavailable on the scheduled day?
A reliable contractor genuinely has contingency arrangements — either rescheduling promptly with clear communication, or in some cases substituting a suitably qualified…
Read Answer Construction ProcessCan I request a walkthrough before final payment is made?
Yes, genuinely reasonable — requesting a walkthrough to confirm the work meets the agreed scope and quality before releasing final payment is…
Read Answer Construction ProcessDoes a concrete project follow a formal handover checklist?
A properly run project genuinely should have one — covering finish quality, any documentation (certifications, warranties), and site cleanup, confirmed together with…
Read Answer Pricing & QuotesCan a quote be transferred to a different property if my plans change?
Genuinely, no — a quote is priced specifically for your original site's conditions, access and scope, so it can't simply transfer to…
Read Answer Pricing & QuotesDoes a quote change if I add scope partway through the project?
Yes, genuinely — any scope added beyond the original quote is priced separately as a variation, since the contractor never priced for…
Read Answer Pricing & QuotesCan I lock in a quote with a smaller holding deposit?
Some contractors genuinely offer this option, particularly to secure a booking slot, though the standard deposit structure and terms still typically apply…
Read Answer Pricing & QuotesDoes a quote typically list the concrete supplier being used?
Not always by name, but a genuinely thorough quote should at minimum specify the concrete grade and strength being supplied, since that's…
Read Answer Council RequirementsCan council requirements affect my choice of concrete supplier?
Genuinely, no — council doesn't dictate your specific concrete supplier, that choice stays entirely yours and your contractor's.What council does care about…
Read Answer Council RequirementsDoes council charge different fees for larger excavation volumes?
Often, yes — many council permit and inspection fees genuinely scale with a project's size or value, so a larger excavation project…
Read Answer Council RequirementsCan council requirements be appealed if they seem unreasonable?
Yes — genuine appeal or review pathways exist, including through Victoria's planning and building dispute processes, if you believe a specific requirement…
Read Answer Council RequirementsDoes council require a specific concrete colour in a heritage-overlay street?
In some genuinely heritage-sensitive streetscapes, yes — council can specify finish or colour requirements for street-facing concrete (driveways, footpaths) to maintain streetscape…
Read Answer Building PermitsDoes a building permit application require a copy of the soil report attached?
Yes — the soil report underpins your engineering documentation, and your building surveyor genuinely needs it (directly or via the engineering drawings…
Read Answer Building PermitsCan I check the status of my building permit application myself?
Yes — as the property owner, you're genuinely entitled to check on your application's progress directly with your building surveyor, not only…
Read Answer Building PermitsDoes a building permit need renewing if works pause for an extended period?
Genuinely possible, yes — if works pause long enough that your permit's validity period lapses without meaningful progress being made, an extension…
Read Answer Building PermitsCan a building permit be applied for before a builder is engaged?
Yes, in some cases — an owner-builder, or a project where design and permit work happens ahead of formally engaging a builder,…
Read Answer EngineeringDoes engineering scope typically include stormwater design as well as structure?
Sometimes, but not always by default — stormwater design can genuinely sit within a structural engineer's scope, or be handled by a…
Read Answer EngineeringCan an engineer’s certification be checked online before hiring them?
Yes — Victoria genuinely maintains a public register of registered practitioners (including structural engineers) that you can check before engaging anyone, confirming…
Read Answer EngineeringDoes engineering design differ for a knockdown rebuild versus a fresh block?
Yes, genuinely — a knockdown rebuild site often has existing site history (old footings, disturbed soil, prior fill) that a fresh block…
Read Answer EngineeringCan an engineer provide a fixed-price fee upfront?
Often, yes, once your project's basic scope is known — many engineers can genuinely quote a fixed fee for standard residential design…
Read Answer Soil ReportsDoes a soil report need updating after significant landscaping work?
If landscaping genuinely changed ground levels significantly — substantial cut, fill, or major changes to site drainage — yes, an updated assessment…
Read Answer Soil ReportsCan a soil report be requested for just part of a large block?
Yes — where only one section of a large block is being built on, boreholes are genuinely concentrated in that specific building…
Read Answer Soil ReportsDoes a soil report identify sloping issues as well as soil type?
A soil report focuses genuinely on soil classification and bearing capacity, while slope and site levels are typically covered by a separate…
Read Answer Soil ReportsCan a soil report be used to negotiate the purchase price of a block?
Yes, genuinely useful for this — if a soil report reveals a difficult classification (reactive clay, fill, poor bearing) requiring a more…
Read Answer FoundationsDoes a foundation need extra protection near a large tree?
Yes, genuinely — large trees can affect soil moisture levels near a foundation, particularly in reactive clay, so your engineer factors tree…
Read Answer FoundationsCan a foundation be assessed remotely before an in-person inspection?
A preliminary remote review — photos, a description of symptoms, property history — can genuinely give an initial indication of what might…
Read Answer FoundationsDoes foundation choice affect how a home is insured?
Not the specific foundation type directly, but genuine, verifiable compliance matters — an engineer-certified, permit-approved foundation gives you documented proof your home…
Read Answer FoundationsCan a foundation be designed around an existing basement or cellar?
Yes, though it's genuinely more complex engineering — a new foundation working around an existing basement or cellar needs a full assessment…
Read Answer Commercial ConcreteCan commercial concrete work be broken into smaller staged pours for cash flow?
Yes, genuinely possible on many projects — breaking a large commercial pour into staged sections can help manage cash flow, though it…
Read Answer Commercial ConcreteDoes commercial concrete need a different reinforcement standard to residential?
Often, yes — commercial slabs typically carry genuinely higher and different loads (vehicle traffic, racking, machinery), so reinforcement is engineered specifically for…
Read Answer Commercial ConcreteCan commercial concrete be finished to match an existing corporate colour scheme?
Yes — coloured or coated concrete finishes can genuinely be matched to a corporate colour scheme, commonly seen in retail forecourts, car…
Read Answer Commercial ConcreteDoes commercial concrete work require a certified safety management plan?
On many commercial sites, yes — a documented safety management plan is genuinely required, particularly on larger or higher-risk jobs, covering site-specific…
Read Answer Bored PiersDoes a bored pier need a specific curing period before building continues?
Yes — the concrete in a bored pier needs to reach a genuine minimum strength before load is applied, following the same…
Read Answer Bored PiersCan bored piers be installed on a site with restricted overhead access?
Often, yes — low-headroom or compact drilling rigs genuinely exist for exactly this scenario, working under power lines, verandas or other overhead…
Read Answer Bored PiersDoes bored pier spacing follow a standard pattern or vary per site?
It genuinely varies per site — spacing is calculated by your engineer based on your building's loads, pier diameter and soil bearing…
Read Answer Bored PiersCan bored piers be used for a retaining wall as well as a house?
Yes — bored piers are a genuinely common foundation method for retaining walls, particularly taller or engineered walls, not just house foundations.The…
Read Answer Screw PilesDoes screw pile pricing vary significantly by soil type?
Yes, genuinely — harder or rockier ground can slow installation and sometimes require larger equipment, while soft, easy-driving soil is faster and…
Read Answer Screw PilesCan screw piles be certified for engineering the same way bored piers are?
Yes — screw piles are a genuinely recognised, certifiable foundation system, with installation torque readings recorded and verified against your engineer's design…
Read Answer Screw PilesDoes a screw pile installation leave any visible surface disturbance?
Genuinely minimal — screw piles are screwed into the ground rather than excavated, so there's no spoil pile or large disturbed area…
Read Answer Screw PilesCan screw piles be extended if the initial depth doesn’t reach the right bearing?
Yes — screw pile shafts can genuinely be extended with additional sections during installation if the required bearing (measured by installation torque)…
Read Answer Retaining WallsDoes a retaining wall’s engineering differ for clay versus sandy soil?
Yes, genuinely significantly — clay exerts different, often greater pressure on a retaining wall than free-draining sandy soil, so wall thickness, drainage…
Read Answer Retaining WallsCan a retaining wall be built around an existing tree without harming it?
Often, yes, with genuine care taken around the root zone — changing soil levels near a tree can affect its root system,…
Read Answer Retaining WallsDoes a retaining wall need different drainage in high-rainfall areas?
Yes, genuinely — areas with heavier or more frequent rainfall need a retaining wall's drainage system (weep holes, agricultural drain, backfill material)…
Read Answer Retaining WallsCan a retaining wall be built to also support a fence on top?
Yes — this is genuinely common, but the fence's additional load and wind-loading needs to be factored into the wall's design from…
Read Answer Soil RemovalDoes soil removal pricing include GST separately?
This follows the same convention as any other concrete or earthworks quote — a genuinely proper quote states clearly whether the figures…
Read Answer Soil RemovalCan soil removal be done using conveyor systems instead of trucks?
On genuinely access-restricted sites, yes — a conveyor can move spoil from a confined excavation to a loading point trucks can actually…
Read Answer Soil RemovalDoes soil removal need a different approach for clay versus sandy soil?
Yes, genuinely — clay is typically heavier and can be sticky or difficult to handle in wet conditions, while sandy soil moves…
Read Answer Soil RemovalCan soil removal trucks work around school zone timing restrictions?
Yes — where your street has school zone restrictions, your contractor genuinely schedules truck movements outside those peak times, avoiding the busiest…
Read Answer Site CutsDoes a site cut change my property’s overall site coverage calculation?
Generally, no — site coverage is genuinely calculated based on your building's footprint, not the earthworks beneath it, so a site cut…
Read Answer Site CutsCan a site cut be inspected by council before the slab is poured?
Depending on your permit conditions, yes — some approvals genuinely include a hold point requiring inspection or sign-off of the completed cut…
Read Answer Site CutsDoes a site cut need shoring on a very steep block?
Often, yes — a genuinely steep block increases the depth and instability risk of a cut, so temporary shoring is commonly specified…
Read Answer Site CutsCan a site cut be combined with retaining wall construction in one contract?
Yes, and it's genuinely a sensible way to scope the work, since a site cut and the retaining wall that follows it…
Read Answer ExcavationDoes excavation include compaction testing afterward?
Where fill or engineered sub-base has been placed, yes — compaction testing genuinely confirms the ground has been compacted to the specification…
Read Answer ExcavationCan excavation work be quoted separately from the concrete pour?
Yes, genuinely common — many contractors itemise excavation and the concrete work separately within an overall quote, even when the same company…
Read Answer ExcavationDoes excavation depth affect how the spoil is classified for disposal?
Not directly by depth alone — spoil classification is genuinely based on what the material actually is (clean fill, contaminated soil, rock)…
Read Answer ExcavationCan excavation uncover heritage or archaeological material?
It's genuinely possible, particularly in older, established suburbs or areas with a documented heritage overlay, though uncommon on a typical residential job.If…
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