About us

Since 2003, WaterLeakTest.com (a KOVAZ s.r.o. brand) has been pioneering advancements in water leak detection technology. What started as a small project in collaboration with ŠKODA Auto a.s. in the Czech Republic—our homeland—has grown into something much bigger. We set out with one goal: to create a more efficient way to detect water ingress in passenger vehicles. And we haven’t looked back since.

Over the years, our dedication to innovation and quality has earned us the trust of some of the biggest names in the automotive industry. Today, we’re proud to be a go-to partner not only for passenger vehicle manufacturers but also for those in the commercial vehicle sector.

We understand the daily challenges that quality engineers face when it comes to water tightness testing. That’s why we’re here—to be a reliable partner you can count on to help solve these problems quickly and effectively.

2003

Launched
as a project

25+

Customers
trust us

12

Countries across
4 continents

5+ mil

Annual turnover of deliveries for series production

Prevent Damage Before It Starts

Water Tightness Testing with WLT

WLT solutions enable automotive manufacturers to accurately detect water ingress after a standard leak test. With the use of precision testers and specialised wicks, it ensures 100% reliable detection of moisture inside the vehicle.

This allows manufacturers to deliver vehicles free from water-related defects—such as damage to electronics, corrosion, unpleasant odours, or mould. In today’s vehicles, equipped with sophisticated systems and sensitive components, thorough water tightness testing is essential to maintain performance, safety, and customer satisfaction.

The WLT Advantage

Preventing Water Ingress and Protecting the Vehicle Interior

Cost Efficiency: prevention is always more cost-effective than repair. Early detection and correction of leaks reduce the need for costly component replacements or interior restoration.

Time Savings: unexpected water-related failures can result in extended downtime. Regular testing minimises risks and helps ensure vehicles are ready when needed.

Customer Satisfaction: delivering water-tight vehicles helps avoid post-sale issues, improves the ownership experience, and strengthens trust and loyalty in your brand.