Are You Guessing or Estimating?
In New Zealand's construction landscape, waterproofing is a critical component, yet many contractors still rely on rough estimating rather than precise calculations. This approach can lead to underquoting, unexpected costs, and compromised project integrity.
EDUCATIONAL
Sumit Kumar
5/23/2025
The Common Pitfall
It's not uncommon for waterproofing professionals to base their quotes on experience or generalized rates. However, this method often overlooks variables such as site-specific challenges, material fluctuations, and labour nuances.
The QS Perspective
As Quantity Surveyors, we emphasize the importance of detailed cost analysis. Accurate estimation isn't just about numbers; it's about understanding the intricacies of each project. For instance, factors like hydrostatic pressure in basements or the need for specific membrane types can significantly impact costs.
A Simple Step Forward
Begin by documenting your past projects: note the materials used, labour hours, and any unforeseen challenges. This data becomes invaluable for future estimates, allowing for more accurate and competitive quoting.
Let's Collaborate
We're here to support the growth of NZ's waterproofing industry. If you're looking to refine your estimation processes or need insights into cost-effective practices, feel free to reach out.
