SAVE DAYS ON QUANTITY TAKE-OFFS. WIN MORE CONTRACTS
Precise Quantity Estimation and Project Tendering Support Across New Zealand
With over 10000+ projects completed, we deliver fast, accurate estimates in formats that meet NZ construction standards
Faster than Internal Estimation
Trade specialties covered
Tender-ready take-offs delivered
Average turnaround time
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Who We Are
Quantity Surveying Services in New Zealand
Big Estimate is a New Zealand–based quantity surveying company founded in July 2017. We specialize in delivering precise Bills of Quantities (BOQ) and material take-off services using modern construction software. Our expertise covers key trades such as roofing, insulation, interior fit-out, Masonry, and tiling, supporting contractors of all sizes across New Zealand….
Why Choose Big Estimate?
- A Trusted QS Provider Since 2017
- Tailored Pricing & Personalized Support
- Weekly and Monthly Project Status Updates
- Accurate and Reliable QS Services
Whānau of Trusted Partners
Our partners help us deliver smarter, faster, and more accurate estimating across Aotearoa.
What We Do
We provide tailored take-offs and cost estimates across key construction trades, all customised to suit New Zealand’s local pricing standards.
🏠 Roofing
- Colorsteel, metal roofing sheets, purlins, flashings, and screws.
- Ridge capping, barge boards, underlay, and accessories.
- Suited for long-run metal, tile, membrane, and flat roofs.
🧱 Masonry
- Accurate count of bricks, blocks, wall ties, and mortar.
- Elevation-wise and storey-wise breakups.
- Deduction for openings and waste calculation.
🖌 Painting
- Surface area for walls, ceilings, joinery, and steel.
- Primer, undercoat, and finish coat breakups.
- Suitable for internal/external paint jobs
🔲 Tiling
- Floor and wall tiles, trims, adhesives, grouts.
- Wet area waterproofing membrane quantities.
- Delivered with waste and pattern alignment.
🧊 Insulation
- Ceiling, wall, and underfloor insulation quantities.
- Thermal batts, acoustic insulation, and R-value references.
- Grouped by material type for easy quoting.
📐Plasterboard
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Accurate takeoffs for walls, ceilings, and bulkheads
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Includes sheet sizes, fixing patterns, screws, adhesives, battens
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Supports GIB® standard, fire-rated, and acoustic boards
🏗 Concrete
- Slab-on-ground, footings, beams, piers, columns, stairs.
- Volume of concrete (m³), mesh reinforcement, bar chairs.
- Formwork area and props quantity surveying.
🪟 Glazed Partitions
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Glass panel dimensions, frame lengths, door inserts, and hardware
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Includes mullions, transoms, glazing beads, and silicone/joint sealant
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Suitable for office fit-outs, commercial interiors, and shopfronts
🪚 Carpentry
- Wall frames, roof trusses, floor joists, lintels, and beams.
- Internal timber fixings: skirting, architraves, cornices, trims.
- Ideal for residential timber framing, interior works, and decks.
🪜Suspended Ceilings
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Grid layout with main tees, cross tees, and perimeter angles
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Plasterboard, tiles, or acoustic panel coverage by room or zone
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Includes suspension system parts, wires, and accessories
🌿Landscaping
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Accurate surface area takeoffs for protective coating applications
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Includes primer, sealer, and anti-graffiti layer quantities
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Ideal for councils, transport hubs, schools, and high-traffic areas
🛡️ Anti-Graffiti Coating
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Accurate surface area takeoffs for protective coating applications
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Includes primer, sealer, and anti-graffiti layer quantities
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Ideal for councils, transport hubs, schools, and high-traffic areas
Who We Help Across New Zealand
We partner with tradies and suppliers who rely on precision, turnaround speed, and compliant takeoffs to quote with confidence.
Builders
We support in-house QS teams by handling trade-specific scopes during peak workloads.
Sub-Contractors
We deliver complete takeoffs to help contractors quote accurately for supply and install projects.
Material Suppliers
Our estimates support bulk material orders, helping suppliers respond faster to large builder requests.