Design change
comparisons.
The hydraulic design has changed mid-project. You need to know exactly what changed, exactly what it costs and exactly how to document it. SNZ compares your two drawing sets and delivers a clear, priced breakdown — fast.
Design changes happen.
The cost must be captured.
On any complex construction project, the hydraulic design will change. Sometimes once, sometimes many times. Every change has a cost — and every cost that is not captured, documented and claimed is money left behind.
A design change comparison is different from a variation assessment. A variation prices the additional scope from a single instruction. A design change comparison takes two complete drawing sets — the original and the revised — and produces a comprehensive, side-by-side analysis of everything that changed across the entire hydraulic scope.
The result is a document you can use for contract administration, variation claims, EOT submissions or commercial negotiations — a clear, priced record of exactly what the design change cost.
Four steps.
One clear answer.
Full hydraulic estimates from scratch — every system individually measured and priced from your drawings before tender submission.
Hydraulic estimating →A specific variation instruction priced fast — measured from the revised drawings, defensible and ready for submission.
Variation assessments → Design has changed
on your project?
Send us both drawing sets and we will come back within a few hours with a turnaround time and fee. Fast, clear and defensible — every time.