
Certified Consulting Arborist
Hills District Sydney
Expert arborist reports, tree assessments and advice from qualified consulting arborists. Serving Castle Hill, Baulkham Hills, Kellyville and all Hills District suburbs.

Professional Certified Arborist Services Across Sydney's Hills District
Treemendous Tree Care provides expert certified arborist services for residential, commercial, and government clients throughout the Hills District. Our qualified arborists hold AQF Level 5 qualifications and deliver comprehensive tree assessments, reports, and advice in compliance with Australian Standards.
Whether you need reports for development applications, tree risk assessments, expert advice for tree disputes, or general tree management guidance, our team provides objective, professional documentation accepted by all local councils and authorities.
Why Choose Our Certified Arborist Services Services
AQF Level 5 Qualified
Our consulting arborists hold Diploma of Arboriculture qualifications and are registered with relevant industry bodies.
Council-Recognised Reports
We produce comprehensive reports accepted by all Hills District councils for development applications and tree works.
Fully Insured
Comprehensive professional indemnity and public liability insurance coverage for all consulting services provided.
Prompt Assessment
Fast turnaround times for inspections and reports, with urgent assessments available when required.
Local Hills Expertise
Intimate knowledge of local tree species, council regulations and soil conditions throughout the Hills District.
Independent Advice
Objective, unbiased assessments focused on tree health, safety and compliance with relevant Australian Standards.
Our Certified Arborist Services Services Include
Development Application Reports
Comprehensive Arboricultural Impact Assessment (AIA) reports for council development applications. We assess existing trees on site, determine which can be retained or require removal, and provide detailed Tree Protection Plans that comply with Australian Standard AS4970. Our reports are accepted by all Hills District councils and help streamline the DA approval process.
Tree Risk Assessments
Professional evaluation of tree hazards and risk levels using industry-standard methodologies. Our qualified arborists can identify structural weaknesses, disease issues, and potential failure points, providing clear documentation of risks and recommended mitigation strategies to protect people and property. Ideal for property owners, strata managers, and public space administrators.
Tree Dispute Reports
Expert reports and mediation assistance for neighbour tree disputes under the Trees (Disputes Between Neighbours) Act. Our impartial assessments document relevant tree issues, compliance with regulations, and potential resolutions. Our consulting arborists can provide expert testimony for Land & Environment Court proceedings when required.
Tree Health & Condition Reports
Detailed assessment of tree health, structural condition, and management recommendations. These reports identify diseases, pest infestations, structural defects, and environmental stressors affecting tree vitality. We provide practical treatment and management strategies to improve tree health and extend lifespan when possible.
Our Certified Arborist Services Process
Initial Consultation
Discuss your specific requirements, whether for development application, risk assessment, tree dispute or general tree management advice. We'll explain the relevant process and documentation needed.
On-Site Tree Assessment
Our qualified arborist will visit your property to conduct a thorough inspection of the trees in question, taking measurements, photographs, and noting all relevant conditions.
Testing & Analysis
When necessary, we may conduct advanced diagnostic tests such as resistograph drilling (for internal decay), sonic tomography, or soil analysis to provide comprehensive data on tree condition.
Report Preparation
We prepare a detailed, professional report including all findings, analysis, and recommendations in compliance with relevant Australian Standards and local council requirements.
Delivery & Support
We provide the finalised report in both digital and printed formats, and remain available to answer questions, attend site meetings, or provide additional supporting documentation as needed.
Frequently Asked Questions About Certified Arborist Services
What qualifications do your certified arborists have?
Our certified arborists hold AQF Level 5 Diploma of Arboriculture qualifications as a minimum standard. Many also possess additional certifications in specific assessment methodologies such as QTRA or TRAQ risk assessment frameworks. Our team members are registered with industry bodies including Arboriculture Australia and the International Society of Arboriculture (ISA), and regularly participate in continuing professional development to stay current with industry best practices and research.
Do I need an arborist report for my development application in the Hills District?
Yes, most development applications in the Hills District require an arborist report if there are trees on or adjacent to the property (including neighbouring properties whose Tree Protection Zones may be affected). Hills Shire, Blacktown, and Hornsby councils typically require Arboricultural Impact Assessments prepared to Australian Standard AS4970 for any development that may impact trees with a height over 5m or trunk diameter over 200mm measured at 1.4m from ground level. Our reports meet all local council requirements and help streamline the approval process.
How much does an arborist report cost in Sydney's Hills District?
Arborist report costs in the Hills District typically range from $450 for basic tree assessments to $1,500+ for comprehensive development application reports involving multiple trees. Tree risk assessments generally cost $550-$750, while expert reports for court proceedings may start at $1,800 due to their complexity and potential court appearance requirements. We provide detailed quotes following an understanding of your specific requirements, number of trees, and report complexity.
How long does it take to get an arborist report?
Standard turnaround times for arborist reports in the Hills District are typically 7-10 business days from site inspection to delivery of the final report. For urgent matters, we offer expedited services with reports delivered within 2-3 business days at an additional fee. Development Application reports for complex sites with numerous trees may require 10-14 days to ensure comprehensive assessment. We always provide an estimated completion timeframe before commencing work.
Can an arborist report help me get approval to remove a protected tree?
An arborist report can support tree removal applications when there are legitimate reasons for removal, such as the tree being hazardous, structurally compromised, diseased, or inappropriately located. Our reports provide objective, evidence-based assessments that document tree condition using recognised methodologies and Australian Standards. While reports cannot guarantee council approval, professional documentation significantly improves your chances when removal is justified. We never provide reports recommending removal unless warranted by the actual tree condition.
Do you provide expert witness services for tree disputes?
Yes, our senior consulting arborists are experienced in providing expert witness services for Land & Environment Court proceedings, council hearings, and formal neighbour disputes. We provide impartial, technically accurate testimony and reports that stand up to legal scrutiny. Our arborists have extensive experience with the Trees (Disputes Between Neighbours) Act and can assist with all aspects of the dispute resolution process, from initial documentation through to court appearances when required.
Need Professional Certified Arborist Services?
Our certified arborists provide expert certified arborist services services throughout the Hills District.
- Council-approved and fully insured tree specialists
- Competitive rates and pensioner discounts available
- Free, no-obligation quotes for all services
- Local Hills District experts with 20+ years experience
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Client Testimonials
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Ready for Professional Tree Services in the Hills District?
Contact our friendly team today for a free, no-obligation quote on any of our tree services.