Frequently Asked Questions (FAQ)
Everything you need to know about council permits, asbestos clearance, pricing structures, and utility disconnections.
A standard residential house knockdown in Sydney typically costs between $30,000 and $50,000. Commercial projects vary significantly but generally range from $100,000 to $150,000+. Factors influencing the cost include structural materials, hazardous materials like asbestos, site access, and tree preservation zones.
Yes. Demolishing any structure in Sydney requires official permission. This is obtained either through a Development Application (DA) submitted to your local municipal council or a Complying Development Certificate (CDC) issued by an accredited private certifier.
Yes. Top Tier Siteworks is fully licenced and qualified to safely remove and dispose of non-friable and friable asbestos in accordance with SafeWork NSW regulations and NSW EPA rules. We provide official waste consignment records and a clearance certificate.
A residential home knockdown generally takes between 5 to 10 working days. This timeframe covers site fencing installation, asbestos abatement, structural demolition, footings removal, material sorting, and final site clearing.
Top Tier Siteworks services Sydney's Inner West, Eastern Suburbs, South Sydney, St George, and all surrounding areas within a 25–30km radius of Earlwood (2206). Check our 'Areas We Service' page for a full directory of suburbs.
Yes. As demolition and construction specialists, we have a complete fleet of excavators, rock saws, and tippers to handle detailed excavation, soil removal, trenching, and basement preparation as soon as the site is cleared.
Yes. We offer professional concrete breakout and removal. Using heavy-duty hydraulic hammers, we break and load old concrete, ensuring 100% of the aggregate is taken to licenced recycling facilities to be crushed into road base.
Yes. We build structural and aesthetic retaining walls, including concrete sleeper walls, sandstone blocks, and core-filled concrete block walls. Our retaining wall designs are engineered to handle high lateral soil pressures and include complete drainage systems.
Site preparation involves clearing vegetation, rough grading, levelling soil, and compacting the subgrade. It is critical because a stable, level, and well-drained building envelope prevents future foundation cracking and slab settling issues.
Yes. Top Tier Siteworks specializes in internal commercial defits and office make-good projects. We dismantle partition walls, suspended ceilings, flooring, and electrical cables quickly, ensuring compliance with strict retail lease agreements.
A CDC is a faster alternative to a traditional council DA. It can be issued by a private certifier if your demolition project strictly meets all criteria of the State Environmental Planning Policy (SEPP), speeding up project start times.
Yes. Top Tier Siteworks (GCORP Demolition & SME Construction) is fully licenced for demolition (licence No. AD213442) and construction work. We carry $20 Million in Public Liability Insurance, plus Workers Compensation insurance for our crew.
Absolutely. Environmental sustainability is a core value. We sort timber, steel, bricks, concrete, and copper on-site. Up to 90% of demolition waste from our projects is redirected to recycling processing hubs instead of landfills.
This is a permit issued by the local council to ensure that public infrastructure (like footpaths, kerbs, and nature strips) is protected during construction or demolition. We document the pre-existing state and place crossing pads to avoid damage.
We utilize high-pressure water misting systems to keep dust particles heavy so they settle instantly on-site. We also schedule heavy hydraulic breaking work during council-approved daytime hours to minimize noise disruption.
Electricity, gas, main water, sewer, and telecommunications must be disconnected and capped. Electricity and gas must be officially disconnected from the street mains by your providers (not just turned off at the metre).
Yes. As part of our service, we install temporary chain-link security fencing (1.8m high) around the entire perimetre of the site, along with mandatory safety signage, to keep the public safe during demolition.
Yes. We are specialists in tight-access demolition. We carefully hand-demolish walls or use micro-machinery to dismantle structures directly on boundary fences without impacting adjacent homes.
Yes. We handle land clearing, tree cutting, stump grinding, and vegetation mulching. We work closely with councils to ensure no protected native trees are damaged during the clearing process.
A strip-out removes only the internal finishes and non-load-bearing walls (like kitchen cabinets, bathroom tiles, and carpets) for a renovation. Full demolition completely tears down the building's structural frame and foundation.
Quotes are based on structural size, building materials (brick veneer vs. double brick or timber), ease of site access, hazardous materials (like asbestos), and the amount of concrete footing extraction required.
Yes. For sites requiring major fill and compaction, we coordinate with independent geotechnical engineers to conduct nuclear density tests and issue compaction certificates (Level 1 or 2) required by structural engineers.
Yes. We combine excavation, site cutting, soil stabilization, and retaining walls to level sloped blocks safely and create a flat building pad ready for foundation work.
While the property owner must request the disconnections with their gas and electricity retailers, Top Tier Siteworks coordinates with certified plumbers and electricians to safely cap the water, sewer, and telecoms lines.
Yes. For extensions and renovations, we perform partial demolition, such as cutting away the back section of a house, removing a roof, or tearing down an old veranda, while leaving the rest of the house intact and weatherproofed.
A DWP is a formal document detailing the step-by-step methods, risk controls, machinery, and safety precautions that will be used to demolish a structure. It is required for all medium and high-risk demolition works in NSW.
For sites near the Cooks River (like Earlwood or Marrickville), we install sediment filter socks and silt fences to prevent dirt, dust, and slurry runoff from entering council gutters and storm drains.
Our initial quotes are comprehensive and cover all identified asbestos. If hidden asbestos is discovered during demolition, we halt work, assess the volume, and provide a clear variation quote based on SafeWork NSW disposal rates.
Yes. We have micro-excavating machinery (as narrow as 750mm) that can fit through standard pedestrian gates, garage doors, and side passages for backyard pool, deck, or shed demolition.
Yes. In the event of a fire, storm damage, or structural failure, Top Tier Siteworks offers 24-hour emergency site containment, temporary shoring, and hazardous material cleanup to stabilize properties throughout Sydney.