Help Centre
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Help Centre
Straight answers to the questions Melbourne homeowners, builders and developers ask most about concrete, excavation, foundations and retaining walls.
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All Questions
Can screw piles be installed on a sloping site?
Yes, genuinely well suited — screw piles are commonly used on sloping sites precisely because they can accommodate varying ground levels and…
Read Answer Screw PilesDoes screw pile spacing affect overall foundation cost?
Yes, genuinely — closer pile spacing means more piles for the same structure, a direct, real cost factor, while wider spacing (where…
Read Answer Screw PilesCan screw piles be load tested after installation?
Yes — load testing is a genuine, available verification method, confirming an installed pile achieves its designed load capacity, though the installation…
Read Answer Retaining WallsCan a leaning retaining wall be repaired rather than rebuilt?
Sometimes, depending on the genuine cause and extent of the leaning — a proper professional assessment is needed to determine whether the…
Read Answer Retaining WallsDoes a retaining wall always need weep holes?
Generally yes — some form of drainage relief, whether weep holes or an alternative drainage system, is a genuine, essential part of…
Read Answer Retaining WallsCan a retaining wall be built using recycled materials?
Some genuine options exist — recycled or reclaimed timber sleepers, for instance, are sometimes used for a specific aesthetic or sustainability preference,…
Read Answer Soil RemovalDoes tip distance affect soil removal cost?
Yes, genuinely — greater distance to an appropriate, licensed disposal facility means more time and fuel per truckload, a real, direct factor…
Read Answer Soil RemovalCan soil removal trucks access a site via a rear laneway?
Often yes, where a genuinely suitable laneway exists — rear access can sometimes offer a practical alternative to front-street truck access, particularly…
Read Answer Soil RemovalDoes soil removal require a weighbridge docket?
Often yes, particularly for larger volumes or where material is being taken to a licensed disposal facility — weighbridge dockets provide a…
Read Answer Site CutsIs a site cut more complex on a corner block?
Sometimes, genuinely — a corner block can have two street frontages with potentially different levels, adding a real additional factor to consider…
Read Answer Site CutsDoes a site cut need erosion control during the works?
Yes — a site cut exposes soil that's genuinely vulnerable to erosion, particularly in rain, making proper erosion control measures (sediment fencing,…
Read Answer Site CutsCan a site cut be done in stages on a large block?
Yes, genuinely — for a larger block, staging the site cut across different areas or project phases can be a practical approach,…
Read Answer ExcavationWhere does excavation equipment stay overnight on a residential site?
Machinery genuinely typically remains on site overnight for the duration of a multi-day excavation project, parked securely in the work area, rather…
Read Answer ExcavationCan excavation spoil be reused to build a garden mound?
Often yes, where the material is genuinely suitable — good quality excavated soil can be repurposed for landscaping features like a garden…
Read Answer ExcavationDoes excavation always require a survey beforehand?
For any excavation tied to a building project — establishing a site cut, confirming finished floor levels — genuine, accurate survey data…
Read Answer Plain & Coloured ConcreteIs there a cost difference between different concrete colours?
Generally minimal — once you've decided to use coloured concrete at all, the specific colour chosen typically doesn't significantly change the cost,…
Read Answer Plain & Coloured ConcreteCan coloured concrete be touched up if a patch fades unevenly?
To some extent — a tinted sealer reapplication can often help restore more even colour appearance where fading has occurred unevenly, though…
Read Answer Plain & Coloured ConcreteDoes plain concrete naturally vary in shade of grey?
Yes, genuinely — cement batch variation, curing conditions, and finishing technique can all produce subtle natural shade variation, even in concrete with…
Read Answer Exposed AggregateCan I combine different aggregate sizes in one driveway?
Yes, similar to combining colours — this is achieved by pouring separate sections with different aggregate mixes, divided by a joint or…
Read Answer Exposed AggregateDoes exposed aggregate need a different sub-base than plain concrete?
No — the fundamental sub-base preparation (compacted crushed rock base, proper compaction) is genuinely the same for exposed aggregate as for plain…
Read Answer Exposed AggregateCan exposed aggregate have a background colour as well as stone?
Yes — combining an oxide colour in the concrete base with exposed aggregate on the surface is a genuine, popular design option,…
Read Answer Concrete DrivewaysDoes my driveway width need to match my garage door?
Not strictly required to match exactly, though it genuinely needs to be practically wide enough to comfortably access your garage door —…
Read Answer Concrete DrivewaysCan I install solar lights into my new driveway?
Yes — recessed solar driveway lights are a genuine, achievable feature, though they need to be planned into your driveway's design and…
Read Answer Concrete DrivewaysDoes a driveway need an expansion joint where it meets the garage slab?
Yes, genuinely important — the driveway and garage slab are typically separate concrete pours, and an appropriate joint at this junction allows…
Read Answer Concrete DrivewaysCan a driveway be built with recycled concrete aggregate?
Recycled aggregate can genuinely be used in some concrete applications, though for a structural driveway, this needs to meet the same performance…
Read Answer Waffle SlabsCan waffle pods be recycled?
Waffle pods are typically made from expanded polystyrene or similar lightweight material, and offcuts or unused pods from a project can often…
Read Answer Waffle SlabsDoes a waffle slab need control joints?
Generally, standard residential waffle slabs are engineered as a single continuous structural unit and typically don't use control joints the way a…
Read Answer Waffle SlabsCan a waffle slab be used for a shed or garage, not just a house?
Yes — waffle slabs aren't limited to house construction, and are genuinely used for sheds, garages, and other structures where your site's…
Read Answer Raft SlabsCan a raft slab be poured using a concrete pump?
Yes, genuinely common practice — pumping is often used for raft slabs, particularly on sites where direct truck access to the pour…
Read Answer Raft SlabsDoes a raft slab need a specific concrete strength grade?
Yes — your engineer specifies a particular concrete strength grade (measured in MPa) for your raft slab based on your building's loads…
Read Answer Raft SlabsCan a raft slab be built on filled land?
It depends genuinely on the fill's quality and how it was placed — properly engineered, well-compacted fill can support a raft slab,…
Read Answer House SlabsWhat happens to a house slab if the property floods?
A properly constructed concrete slab itself is genuinely resilient to water exposure in the short term — concrete doesn't structurally fail simply…
Read Answer House SlabsDoes a house slab need a damp-proof membrane?
Yes — a damp-proof membrane (typically a plastic vapour barrier laid before pouring) is standard, genuine practice for slab-on-ground construction, managing moisture…
Read Answer House SlabsCan a house slab be built without a builder involved?
Yes — you can genuinely engage a concrete contractor directly for your slab, whether as an owner-builder managing the broader project yourself,…
Read Answer Builder GuidesDoes a builder need separate insurance to their concrete subcontractor?
Yes, generally — a builder maintains their own insurance covering their overall operations and project, while a genuine concrete subcontractor should independently…
Read Answer Builder GuidesCan builders lock in concrete pricing for a whole financial year?
Sometimes, for genuinely high-volume, ongoing builder relationships — some contractors offer negotiated rate agreements for consistent, predictable work volume, though this isn't…
Read Answer Homeowner GuidesHow do I choose between multiple contractor quotes fairly?
Start by confirming each quote covers genuinely the same scope and specification — comparing quotes for different scopes isn't a meaningful comparison,…
Read Answer Homeowner GuidesWhat should first-time renovators know before starting a concrete project?
Genuinely useful things to know upfront: proper concrete work takes real preparation time before you see a visible pour, weather can genuinely…
Read Answer Construction ProcessCan I request project updates via text or email instead of phone calls?
Yes, generally — most contractors can genuinely accommodate your preferred communication method, whether that's phone, text, or email, particularly for routine updates…
Read Answer Construction ProcessDoes bad weather always delay a project by a full day?
Not necessarily — the genuine impact depends on the specific weather, the stage of your project, and how the day unfolds; a…
Read Answer Pricing & QuotesDoes a quote include cleanup and waste disposal?
Often yes for reasonable, standard project-related cleanup, though this genuinely varies between contractors — worth confirming explicitly rather than assuming a universal…
Read Answer Pricing & QuotesCan I get multiple quotes without offending contractors?
Absolutely — getting multiple quotes is genuinely standard, expected practice, not something a professional contractor would take offence to; it's a normal,…
Read Answer Pricing & QuotesDoes a written quote count as a legal contract?
It genuinely can, depending on how it's structured and accepted — a properly detailed quote that's formally accepted (in writing, with agreed…
Read Answer Council RequirementsCan I contact council directly, or does my contractor have to?
Yes, generally — as the property owner, you can genuinely contact your council directly for general questions, though for formal permit applications,…
Read Answer Council RequirementsDoes council involvement differ for renovations vs new builds?
Often yes, in genuine ways — renovations near an existing structure or boundary can trigger different considerations (existing easements, established trees, heritage…
Read Answer Building PermitsDoes a building permit cost the same for every project?
No — building permit fees genuinely vary based on your project's value and complexity, along with your specific building surveyor's fee structure,…
Read Answer Building PermitsCan a building permit be amended after it’s issued?
Yes — if your design genuinely needs to change after your permit is issued, an amendment can typically be submitted to your…
Read Answer Building PermitsDoes a building permit expire if construction is delayed?
Yes, genuinely — building permits typically have a validity period, commonly requiring work to commence within a set timeframe (often around 12…
Read Answer EngineeringWhat qualifications should a structural engineer have?
A genuine structural engineer providing certification for building work needs relevant tertiary engineering qualifications and, in Victoria, registration with the Victorian Building…
Read Answer EngineeringCan an engineer visit my site in person?
Yes, generally — many engineers offer site visits, particularly valuable for genuinely complex sites (sloping blocks, unusual conditions) where a physical inspection…
Read Answer EngineeringDoes every concrete project need a structural engineer?
Not every project — genuinely small, non-structural work (a garden path, a small shed base below relevant thresholds) may not require formal…
Read Answer Soil ReportsCan a soil report be expedited for an urgent project?
Often yes, to some extent — many geotechnical providers offer a genuine expedited service for an additional fee, useful where your project…
Read Answer Soil ReportsHow much does a soil report typically cost?
This genuinely varies by site size, complexity, and the specific geotechnical provider — a standard residential soil report is a relatively modest…
Read Answer Soil ReportsDoes a soil report check for contamination as well as classification?
Not always automatically — a standard geotechnical soil report focuses primarily on classification for foundation design (soil type, reactivity, bearing capacity), which…
Read Answer FoundationsCan a foundation be inspected before buying a house?
Yes — arranging a professional building and structural inspection as part of your due diligence before purchasing is a genuinely sensible, common…
Read Answer FoundationsDoes foundation design differ for single vs double storey homes?
Yes, genuinely — a double storey home introduces significantly greater loads than a single storey equivalent, which your engineer accounts for through…
Read Answer FoundationsCan a foundation issue be caused by a neighbouring property’s work?
Yes, genuinely possible — excavation, significant tree removal, or other substantial work on a neighbouring property can, in some circumstances, affect your…
Read Answer Commercial ConcreteDoes commercial concrete come with a different warranty to residential?
Often yes — commercial contracts frequently specify their own warranty terms, negotiated as part of the contract, rather than relying solely on…
Read Answer Commercial ConcreteCan commercial concrete work be staged across multiple trading days?
Yes, genuinely common for larger commercial projects — sectioning work across multiple days or nights, working around a business's trading hours, is…
Read Answer Commercial ConcreteDoes commercial concrete need a different curing process to residential?
The fundamental curing principles are genuinely the same, though commercial projects can involve larger pour volumes and, sometimes, higher-strength mixes that call…
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