Expert Quantity Surveying Services

Delivering cost certainty and expert project support for over 30 years!

Accurate, Reliable & Professional


Operating in Central Otago, NZ, and the wider Lower South Island, Ballantyne Quantity Surveying Services provides independent, expert advice in quantity surveying, cost management, and project coordination. Owned and operated by Andrew Ballantyne, a registered quantity surveyor with over three decades of experience, we work with homeowners, developers, builders, councils, and businesses to deliver successful, financially sound construction outcomes. From residential homes and commercial buildings to infrastructure projects and agricultural developments, our clients trust us for honest reporting, detailed cost estimates, and practical project guidance — from the early planning stages to completion.

Our QS Services


At Ballantyne Quantity Surveying Services, we offer a full range of quantity surveying and project management services to support your build from concept to completion.

Bank Drawdown & Cost to Complete Reporting

Independent reports for lenders and clients to ensure financial progress aligns with work completed.

Construction Cost Studies & Estimates

From concept budgets to detailed trade breakdowns — know your costs before you build.

Feasibility Studies

Clear advice on project viability, costs, and risks.

Cash Flow Forecasting & Reporting

Accurate forecasting to help manage your budget throughout the project lifecycle.

Tender Management & Analysis

Preparation of tender packages, bid evaluation, and contract negotiation support.

Extension of Time Claims Review

Independent assessment of delay claims to support fair and informed decisions.

Final Account Review & Negotiation

Ensure projects are financially wrapped up with clarity and fairness.

Critical Path Programming

Practical, realistic project timelines to guide your construction process.

Scope of Work Development

Clear documentation and definitions to support successful procurement and delivery.

Project Management

Coordination of contractors, consultants, consents, and construction processes.

Meet Andrew Ballantyne


Andrew brings more than 30 years’ experience as a quantity surveyor, project controls engineer, and project manager — working in New Zealand, Australia, and the Asia-Pacific region. His career spans:

Large-scale mining and infrastructure projects with Bechtel Asia Pacific

Local education, hospitality, commercial and government buildings

Specialist design-and-build packages, including warehouse and stormwater infrastructure

Experience across residential, heritage, agricultural, and industrial sectors

Andrew’s practical, no-nonsense approach ensures that your project is managed with professionalism, precision, and care — no matter the size or complexity.

Two people working at a desk with papers, calculator, laptop, and hard hat.

Industry Experience


Ballantyne Quantity Surveying Services has successfully supported projects in a wide range of industries.

Residential Construction

Commercial & Retail Developments

Agricultural & Rural Infrastructure

Airports & Civil Upgrades

Hospitality & Accommodation

Heritage Restorations

Government & Education Facilities

Why Choose Us?


Registered Quantity Surveyor

Qualified, experienced, and recognised by the industry.

30+ Years of Experience

A proven track record across New Zealand and Australia.

Independent & Transparent

Clear, unbiased advice that supports your financial and project goals.

End-to-End Service

From cost planning to project completion — one point of contact you can rely on.

Let’s Talk About Your Next Project


Whether you’re at the concept stage or midway through a build, Ballantyne Quantity Surveying Services can provide the clarity, structure, and professional support you need to move forward with confidence.