Welcome

Professional Roofing Takeoffs & Pricing Support

At Big Estimate, we help across New Zealand Roofers by providing accurate takeoffs, fast turnaround times, and credible reports. 

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Quote Smarter

Fast Turnaround

About us

We Help Roofers Win More Tenders

Stop spending your evenings measuring drawings and second-guessing your quantities. We provide clear, ready-to-use Bills of Quantities (BOQ) prepared with modern estimating tools and real-world construction knowledge.

 

  • Quote Smarter: Access reliable quantities that reduce pricing errors and material waste.
  • Fast Turnaround: Most roofing estimates are delivered within a few working days.
  • Stay Competitive: Submit stronger tenders that are realistic and practical to deliver.

Build for Roofers who want to win

Ready to use reports

Detailed Bills of Quantities (BOQ’s) for Professional Roofers

Our detailed estimation reports cover every component required for a complete roofing scope, ensuring there are no hidden gaps in your pricing:

Main Components

Rainwater Systems

Finishing the Details

Allowances

Penetrations

What Our Customers Say about Us

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“Before working with Big Estimate, I used to spend 2-3 days a week on take-offs… they now handle not only tendering, but also payment claims and pricing strategies. This has freed me up to focus on project management and grow our business.”

Jonathan Makuch, Managing Director, Makuch Roofing.

our process

From Plans to Quotes Made Simple

1. Upload & Get Started

Send your plans in seconds to kick-start your estimate.

2. Clear Pricing & Timeline

Receive upfront costs and a delivery date so you can plan with confidence..

3. Expert Take-off

Our team handles the measuring and quality checks.

4. Download & Quote

Access your ready-to-use reports and start pricing your job.

5. Support when you need

Get fast answers and expert help whenever you need assistance.

Our plans

Tailored QS Services that works for you!

We offer different QS services to suit your unique business requirements:

Measurement & Pricing Support

Measurement Services

Receive accurate material quantities and clear takeoffs ready for quoting and ordering. Our modern tools reduce errors and help you submit stronger tenders with confidence

Price & Cost Support

Get smart pricing support to protect your profit margins. From quote preparation to budget tracking and variation management, we help you control costs from start to finish

Flexible QS Staffing Solutions

Flexible Ad Hoc QS Support

Get professional help only when you need it. This is ideal for managing workload peaks without long-term commitments or overhead expenses.

Dedicated QS Support

For daily operations, get a dedicated QS working alongside your team for pricing, negotiations, and payment claims. A fixed annual agreement provides consistent support and predictable costs.