★★★★★ 5.0 · 69 Google reviews Sydney · Australia-wide
Australia's specialist hydraulic estimating firm

The estimate that wins the tender.

Specialist plumbing estimating services, exclusively hydraulic. Every pipe, fitting and fixture priced from your drawings, so the scope is right and the bid holds up on site.

Drawings in · every line measured · independently checked · bid-ready in 72 hours
ItemDescriptionUnitQuantity
1.01Projects estimatedAcross every sector, all statesNo.420+
1.02CoverageNSW · QLD · VIC · WA · SA · NT · ACTStates7
1.03Client rating69 verified Google reviewsAvg5.0
1.04SpecialisationPlumbing and hydraulics. No generalists, ever.%100%

Trusted on projects for Rio Tinto · Queensland Rail · Woolworths Group · UNSW

3.0Method

Four steps. Zero surprises.

3.01

Send us your drawings

PDF, DWG or Revit. We review everything before work begins and ask the right questions upfront. Nothing is assumed.

Day one
3.02

Detailed takeoff and pricing

Every pipe, fitting, fixture and labour item individually measured and priced in PlanSwift, from your specific drawings. Nothing averaged, no industry templates.

Measured,
not estimated
3.03

Independent review

Every estimate is checked by a second estimator before it leaves our office. This is the step most estimating firms skip. We never do.

Checked
before it ships
3.04

Delivery in your format

Excel BOQ, PDF summary or a tender-ready breakdown, set out the way your submission requires. If you need to know how we arrived at any number, we will walk you through it.

Your format,
not ours
72 hours
Typical turnaround for small to medium projects, variations and design change comparisons.
Agreed upfront
High-rise, hospitals, government and multi-site packages. Timeline confirmed at the start, every time.
Request an estimate
4.0Why SNZ

Four things you will not get anywhere else.

4.01 — Live market rates

Rates that move the day the market moves.

Most estimates run on rate books that update once a year. When conflict in the Middle East recently pushed material prices up sharply, the next estimate out of our office carried the revised rates the same day, not at the next quarterly update.

Why this matters →
Worked example — recent market moveMoveApplied
PVC pipe▲ 32%Same day
HDPE pipe▲ 40%Same day
Rate book averageAnnually
Estimates issued after the moveRevisedSame day

Illustrates a past market movement and how quickly we applied it. Not a live price feed.

4.02 — Specialists only

Plumbing and hydraulics. Nothing else.

We are not a generalist firm that also prices plumbing. Every hour of our week is hydraulic scope, which is why we read it faster and price it more accurately than a firm splitting attention across twenty trades.

About the firm →
4.03 — Real people, real office

Sit across the table from your estimator.

We are in Bankstown, Sydney. Bring your drawings and your printed estimate, have a coffee, and we will walk you through every line and where each dollar came from.

Come and see us →
4.04 — AI vs human

An AI estimate looks finished. That is what makes it dangerous.

On a recent high-rise in Southport, an AI hydraulic estimate came in around 40% below ours for the same drawings. A tool prices what is drawn and treats a simple job and a complex one the same way.

Why an AI estimate is a risk →
5.0Selected work

Projects that prove the standard.

5.01Rio Tinto — Paraburdoo AirportRemote resources infrastructureOne of Australia's most remote mine sites. No council water or sewer, extreme heat, Rio Tinto's own engineering specs. Full self-contained hydraulic package priced from the ground up.WA
5.02Landmark Gran CentralHigh-rise residential25 storeys, 373 apartments, 5-level basement. Cold and hot water, sanitary, stormwater, gas reticulation and podium hydraulics across 30+ levels.NSW
5.03Queensland Rail — 3 Station UpgradesGovernment · Tier 1Three concurrent rail station upgrades for Abergeldie Complex Infrastructure, a national Tier 1 civil contractor. Multi-site delivery under a government programme.QLD
View all case studies
6.0Clients

5.0 from 69 reviews. Real contractors, real tenders.

★★★★★
Worth every penny. SNZ estimated a large commercial hydraulic, civil and fire package in SA on a tight timeline. Their detailed estimate provided everything we needed to fill in the tender documents with ease.
Riverland Plumbing & GasSouth Australia
★★★★★
The accuracy and detail were second to none. Everything was broken down and very clear to see pricing for each part of the job. Would certainly not hesitate to recommend SNZ.
Pinnacle PlumbingNew South Wales
★★★★★
Upfront pricing, great communication throughout, and the end result was a well mapped, high detail estimate. Will use again. Makes our admin time a lot more streamlined.
Downie Plumbing & GasNew South Wales

Every review is from a real plumbing contractor or construction professional. Read all 69 on Google →

7.0Services

Everything a specialist plumbing estimator should give you.

Plumbing estimating services built for tendering, not generic takeoffs. From a 24-hour variation assessment to a full hydraulic package on a 25-storey tower.

Estimating on subscription. For contractors tendering consistently, we offer ongoing estimating shaped around your pipeline rather than sold as a fixed package. It is the only model of its kind in Australian plumbing estimating. See how it works →
8.0Free tools

The calculators we built for our own estimators.

AS/NZS 3500 compliant, real material densities, instant PDF export. We built them because no one else had. Free to use, no subscription.

9.0 — Get an estimate

Send us your drawings. Get a bid you can build to.

Tell us the sector, the state and how fast you need it. Most estimates are back within 72 hours. For large or complex scopes we confirm your timeframe upfront.

Your details are used only to respond to your enquiry. We never share your information.