Plumbing variation assessments.
A design change on site. An RFI that adds scope. An instruction that changes the hydraulic system. You need a fast, accurate cost, and you need it before the work proceeds.
You do not need to have had your original estimate done by SNZ. Send us what you have and we will tell you what we can assess.
An underpriced variation costs you money.
Variations are where construction projects make or lose money. A design change that adds two extra floors of hydraulic riser, changes the pipe material specification or relocates the main plant room carries real cost, and if it is underpriced you carry the difference.
Most contractors price variations quickly, under time pressure, from memory, using rough estimates. SNZ prices variations the same way we price every estimate: from the actual drawings, measuring what actually changed.
You do not need to have had your original estimate done by SNZ to use our variation assessment service. Send us the original drawings and the revised drawings and we will price the difference. See also our design change comparison service.
We do not need you to have had your original estimate done by SNZ. Send us what you have and we will tell you what we can assess.
Every type of hydraulic variation.
From a single relocated fixture to a complete system redesign, SNZ prices the variation correctly.
Priced to hold up in a claim.
Measured from actual drawings.
The original and revised drawing sets compared line by line in PlanSwift. Not priced from memory or a rough allowance.
Defensible pricing.
Every figure itemised and traceable, so the variation stands up to scrutiny from the contract administrator or the client.
Independent of the original estimator.
You do not need to have used SNZ for the original estimate. We assess what you send us on its own merits.
What contractors say.
Verified Google reviews. 5.0 from 69 reviews.
We’ve been incredibly impressed with the responsiveness and professionalism of SNZ. Quick to respond, thorough in their work, and consistently reliable. Their attention to detail has made a real difference to our workflow. We see them as a valuable long-term partner.
Worth every penny. SNZ estimated a large commercial hydraulic, civil and fire package in SA on a tight timeline. Within 24 hours they had started on our quote. Their detailed estimate provided everything we needed to fill in the tender documents with ease.
Shoaib and the team went over and above to deliver in a tight timeframe. Everything was detailed and communication was 10/10. The breakdown was very thorough and transparent covering all aspects of the job. Will definitely be using SNZ on future projects.
Common questions.
Do I need to have used SNZ for the original estimate?
No. Send us the original drawings and the revised drawings and we will price the difference. We assess what you send us on its own merits.
What do you need to price a variation?
Your original drawings, the revised drawings and a brief description of what changed. We come back with a turnaround time and fee within a few hours.
How is a variation assessment different from a design change comparison?
A variation assessment prices the added or removed scope for a claim. A design change comparison sets the two drawing sets side by side and shows exactly what changed and what each change costs, which suits contract administration.
Will the pricing stand up in a claim?
Every figure is itemised and traceable back to the drawings, so it holds up to scrutiny from a contract administrator or client rather than reading as a rough allowance.
Can you price omissions as well as additions?
Yes. Scope removed from the contract is measured and credited accurately, the same way additions are priced.
How fast can you turn a variation around?
We confirm the fee and turnaround within a few hours of receiving the drawings. Variations are usually faster than a full estimate because we are pricing the difference, not the whole job.
Explore more.
Need a variation priced fast?
Send us your original drawings, revised drawings and a brief description of what changed. We will come back with a turnaround time and fee within a few hours.
Request an estimate