Capability statement
Tarnwick Civil & Earthworks delivers bulk earthworks, roads, drainage and subdivision works across South East Queensland with its own fleet, survey team and supervisors.
Version 1 · Last reviewed 20 October 2026
Who we work with
Where we work
South East Queensland, from the Gold Coast to the Sunshine Coast and west to Toowoomba.
Key credentials
Tarnwick Civil & Earthworks builds the ground that developments stand on. We deliver bulk earthworks, roads, stormwater drainage and subdivision works for developers, councils and head contractors across South East Queensland, with our own fleet, our own survey team and supervisors who stay with a project from first cut to handover, so programs are kept and quality is checked at every stage.
Leadership: Tarnwick is led by its founding director, a civil engineer, with a construction manager and a survey manager who run the projects day to day.
The ground is right before anything is built on it.
Earthworks set the program for everything that follows. Developers and councils choose Tarnwick because we own our fleet, survey our own work, keep one supervisor on each project and plan for the weather, so the site is ready when the next trades arrive.
Own fleet, own survey, one supervisor: the site is ready when you need it.
Three core services take a site from raw ground to finished roads and lots. Each is delivered by our own crews and fleet, with survey checks built into every stage.
Cut, fill and compaction for subdivisions, estates and building pads, to the geotechnical engineer's specification.
Subdivision roads, council road upgrades and pavements, from subgrade preparation to sealed surface.
Stormwater pipes, culverts, detention basins and erosion controls for subdivisions and council upgrades.
Owning our fleet lets us mobilise when a project is ready, not when hire machines are free. Every machine is serviced in our workshop and fitted for the work we do.
| Category | Items |
|---|---|
| Plant and machinery |
|
| Vehicles |
|
| Workshop |
|
| Specialist tools and technology |
|
Maintenance: Every machine has a daily pre-start check and a service schedule kept in our workshop, with records available to clients on request.
Our work spans the residential, industrial and public projects that shape South East Queensland's growth, from new suburbs to council road upgrades.
| Environment | What we deliver | The challenge | Why we fit |
|---|---|---|---|
Residential subdivisions | Bulk earthworks, roads, drainage and lot works for new estates. | Staged releases, tight programs and neighbours. | We stage works to match lot releases and keep dust and traffic under control. |
Industrial estates | Building pads, heavy duty pavements and drainage for estates. | Large pads to tight level tolerances. | Machine guidance and survey checks keep pads within tolerance. |
Council roads | Road upgrades, intersections and drainage for local councils. | Live traffic, services and public safety. | Traffic management, services locating and staged works keep roads open. |
Rural infrastructure | Rural road upgrades, culverts and creek crossings. | Remote access, flooding and environmental approvals. | We plan around flood seasons and work to each approval's conditions. |
Every environment gets the same survey checks and supervision.
| Certification | What it means |
|---|---|
| ISO 45001 | Safety management |
| ISO 9001 | Quality management |
| ISO 14001 | Environmental management |
| Traffic management accreditation | Accredited to plan and run traffic control |
How to engage us: Direct engagement by developers · Council tender and quotation · Subcontract to head contractors
Client: residential developer. 240 lots. Bulk earthworks, roads and drainage.
"Tarnwick kept every stage on program through a wet summer, and the lots passed inspection first time."
Client: industrial developer. Six building pads. Heavy duty pavements.
Client: local council. 1.8 km road upgrade. Culvert replacement.
Client: head contractor. Basin and outlet works. Erosion controls.
Client: residential developer. Scope: bulk earthworks, roads and drainage for 240 lots.
"Through a very wet summer, Tarnwick kept every stage moving and handed over lots that passed first time."
Client: local council. Scope: 1.8 km road upgrade and culvert replacement.
"The road never closed, and residents hardly noticed the works."
Send us your plans and we will price the earthworks and program.
Phone: 0491 570 158Email: projects@tarnwick.example.comWeb: tarnwick.example.comService area: South East QueenslandISO 9001, ISO 14001 and ISO 45001 certifiedDocument
The full designed capability statement as a PDF, for tender packs, prequalification and your project files.
Version 1 · Last reviewed 20 October 2026
IONYX / DOCUMENT DESIGN
Their content, unchanged. Our design.
DESIGN REFERENCE · BIG TIMBER TREE SERVICESBig Timber Tree Services
Version 3.0 / Approved 12 August 2026
Big Timber Tree Services is committed to providing a safe workplace for its workers, contractors and visitors. We plan our work to prevent injury and protect the health of everyone on site.
This policy applies to all tree care, pruning and removal work carried out by Big Timber Tree Services. It covers our workers, contractors and visitors at each workplace.
We identify hazards before work begins and use practical controls to reduce risk. We provide suitable equipment, training and supervision, and consult workers about safety matters.
Everyone has a part to play in maintaining a safe workplace. Workers must follow agreed controls and report hazards, incidents and unsafe conditions promptly.
No job is so urgent that we cannot take the time to do it safely.
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
Signed: Alex Taylor
Director
12 August 2026
Doc ID: BT-WHS-001 · Version 3.0 · Approved: 12 Aug 2026
Big Timber Tree Services is committed to providing a safe workplace for its workers, contractors and visitors. We plan our work to prevent injury and protect the health of everyone on site.
This policy applies to all tree care, pruning and removal work carried out by Big Timber Tree Services. It covers our workers, contractors and visitors at each workplace.
We identify hazards before work begins and use practical controls to reduce risk. We provide suitable equipment, training and supervision, and consult workers about safety matters.
No job is so urgent that we cannot take the time to do it safely.
Everyone has a part to play in maintaining a safe workplace. Workers must follow agreed controls and report hazards, incidents and unsafe conditions promptly.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
Six documents. One consistent identity.
Doc ID: BT-WHS-001 · Version 3.0 · Approved: 12 Aug 2026
Big Timber Tree Services is committed to providing a safe workplace for its workers, contractors and visitors. We plan our work to prevent injury and protect the health of everyone on site.
This policy applies to all tree care, pruning and removal work carried out by Big Timber Tree Services. It covers our workers, contractors and visitors at each workplace.
We identify hazards before work begins and use practical controls to reduce risk. We provide suitable equipment, training and supervision, and consult workers about safety matters.
No job is so urgent that we cannot take the time to do it safely.
Everyone has a part to play in maintaining a safe workplace. Workers must follow agreed controls and report hazards, incidents and unsafe conditions promptly.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
01WHS Policy
Doc ID: BT-ENV-001 · Version 3.0 · Approved: 12 Aug 2026
Big Timber Tree Services aims to reduce the environmental impact of its work. We protect soil, waterways and surrounding vegetation when planning each job.
This policy applies to our tree care operations, transport and waste handling. Workers and contractors must follow the environmental controls agreed for each site.
We separate green waste for reuse where practical and prevent spills through regular equipment checks. We comply with site requirements and report environmental incidents promptly.
Protect the site today and leave it ready for tomorrow.
The director provides resources to meet our commitments. Supervisors check site controls and workers minimise waste and protect sensitive areas.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
02Environmental Policy
Doc ID: BT-QUA-001 · Version 3.0 · Approved: 12 Aug 2026
Big Timber Tree Services is committed to reliable tree care that meets agreed client requirements. We define the scope clearly before starting work.
This policy applies to quoting, planning, delivery and completion of our services. All workers and contractors contribute to consistent outcomes.
We use trained crews and maintain our equipment to support reliable delivery. We check completed work and use client feedback to improve our processes.
Deliver the agreed scope. Check the result. Keep improving.
The director reviews performance and provides appropriate resources. Supervisors verify the agreed scope and workers raise issues before they affect quality.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
03Quality Policy
Doc ID: BT-SWMS-001 · Version 3.0 · Approved: 12 Aug 2026
Site: Example Street, Brisbane · Supervisor: Alex Taylor
All workers must review this statement before starting work.
| Job step | Hazard | Risk rating | Controls | Responsible |
|---|---|---|---|---|
| Set up site | Public access | H · High | Establish exclusion zone and signs; brief crew. | Supervisor |
| Inspect tree | Unstable limbs | H · High | Assess tree condition and agree cutting sequence. | Arborist |
| Prune branches | Falling material | H · High | Use controlled lowering and maintain exclusion zone. | Crew leader |
| Chip material | Moving machinery | M · Medium | Keep clear of feed zone; use trained operators. | Operator |
| Clean up | Trips and debris | L · Low | Remove debris and check access before handover. | Crew |
Stop work if conditions change. Review controls with the crew before work resumes and record any changes to this statement.
04Safe Work Method Statement
Doc ID: BT-FACT-001 · Version 3.0 · Approved: 12 Aug 2026
05Brand Facts Sheet
Big Timber Tree Services
2026
06Capability Statement
Doc ID: BT-WHS-001 · Version 3.0 · Approved: 12 Aug 2026
Big Timber Tree Services is committed to providing a safe workplace for its workers, contractors and visitors. We plan our work to prevent injury and protect the health of everyone on site.
This policy applies to all tree care, pruning and removal work carried out by Big Timber Tree Services. It covers our workers, contractors and visitors at each workplace.
We identify hazards before work begins and use practical controls to reduce risk. We provide suitable equipment, training and supervision, and consult workers about safety matters.
No job is so urgent that we cannot take the time to do it safely.
Everyone has a part to play in maintaining a safe workplace. Workers must follow agreed controls and report hazards, incidents and unsafe conditions promptly.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
Doc ID: BT-WHS-001 · Version 3.0 · Approved: 12 Aug 2026
Big Timber Tree Services is committed to providing a safe workplace for its workers, contractors and visitors. We plan our work to prevent injury and protect the health of everyone on site.
This policy applies to all tree care, pruning and removal work carried out by Big Timber Tree Services. It covers our workers, contractors and visitors at each workplace.
We identify hazards before work begins and use practical controls to reduce risk. We provide suitable equipment, training and supervision, and consult workers about safety matters.
No job is so urgent that we cannot take the time to do it safely.
Everyone has a part to play in maintaining a safe workplace. Workers must follow agreed controls and report hazards, incidents and unsafe conditions promptly.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
Charcoal / safety orange
Doc ID: BT-WHS-001 · Version 3.0 · Approved: 12 Aug 2026
Big Timber Tree Services is committed to providing a safe workplace for its workers, contractors and visitors. We plan our work to prevent injury and protect the health of everyone on site.
This policy applies to all tree care, pruning and removal work carried out by Big Timber Tree Services. It covers our workers, contractors and visitors at each workplace.
We identify hazards before work begins and use practical controls to reduce risk. We provide suitable equipment, training and supervision, and consult workers about safety matters.
No job is so urgent that we cannot take the time to do it safely.
Everyone has a part to play in maintaining a safe workplace. Workers must follow agreed controls and report hazards, incidents and unsafe conditions promptly.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
Paper white / blueprint blue
Doc ID: BT-WHS-001 · Version 3.0 · Approved: 12 Aug 2026
Big Timber Tree Services is committed to providing a safe workplace for its workers, contractors and visitors. We plan our work to prevent injury and protect the health of everyone on site.
This policy applies to all tree care, pruning and removal work carried out by Big Timber Tree Services. It covers our workers, contractors and visitors at each workplace.
We identify hazards before work begins and use practical controls to reduce risk. We provide suitable equipment, training and supervision, and consult workers about safety matters.
No job is so urgent that we cannot take the time to do it safely.
Everyone has a part to play in maintaining a safe workplace. Workers must follow agreed controls and report hazards, incidents and unsafe conditions promptly.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |
Warm neutral / deep green
POLICIES / HEALTH & SAFETY
Big Timber Tree Services is committed to providing a safe workplace for its workers, contractors and visitors. We plan our work to prevent injury and protect the health of everyone on site.
This policy applies to all tree care, pruning and removal work carried out by Big Timber Tree Services. It covers our workers, contractors and visitors at each workplace.
We identify hazards before work begins and use practical controls to reduce risk. We provide suitable equipment, training and supervision, and consult workers about safety matters.
No job is so urgent that we cannot take the time to do it safely.
Everyone has a part to play in maintaining a safe workplace. Workers must follow agreed controls and report hazards, incidents and unsafe conditions promptly.
| Role | Responsibility |
|---|---|
| Director | Provide resources, review risks and maintain safe systems of work. |
| Supervisor | Brief the crew, check controls and monitor site conditions. |
| Workers | Follow safe work methods and report hazards and incidents. |