Pipe renovation. A second life.

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From drains to mains – seamless renovation without the hassle

Damaged drains, pipes, or vertical stacks don’t have to mean tearing up walls or digging through floors. With modern sewer and drain renovation techniques, we can repair leaks and renew worn-out sections—without demolition, excavation, or disruption.

Traditionally, fixing a crack or leak meant opening up the entire system, which involved major costs, noise, and mess. Today, there’s a smarter, cleaner solution: relining. But what exactly is it—and how does it work?

What Is Pipe Relining?

Pipe relining is a non-invasive method for repairing and renewing drainage and sewer systems—no need to expose or remove the old pipes. Using either a liner (also called the “sock method”) or spray coating, we create a seamless new inner layer inside your existing pipe.

The result? A smooth, joint-free pipe interior that reduces blockages and improves flow. You’ll enjoy years of leak-free operation—without the need for demolition.

Over time, flowing water and debris wear down your pipes, often leading to cracks and leaks. Regular maintenance and timely renovation of your drainage, stacks, and sewers can prevent costly problems down the line.

In the past, fixing pipe damage meant tearing open walls, digging up floors, and replacing entire systems—an expensive, time-consuming, and disruptive process. Today, we offer a modern alternative: sewer renovation using spray coating or relining.

We perform thorough inspections and offer immediate, non-destructive solutions for a wide range of pipe materials—from PVC and asbestos cement to clay and cast iron—with internal diameters from 40 mm to 250 mm.

Renovation with Spray Coating

A quick look at how spray coating works—and why it’s so effective.

Using our spray-coating technique, we can renovate pipes with diameters between 40 mm and 210 mm. We apply multiple layers of a durable coating to create a smooth, protective lining that prevents leaks and resists wear—for at least 50 years.
The coating layer is thin, so it doesn’t obstruct flow. In fact, it improves it—thanks to its smooth surface, waste and grease pass through more easily, reducing the risk of blockages.

More information about spray coating

Renovation with Relining

An overview of how relining utilizing the 'sock' method is used to renovate a sewer pipe without demolishing or breaking open walls and floors.

With our relining method, a flexible liner is inserted into pipes ranging from 75 mm to 250 mm in diameter. Once in place, we cure it with a special resin, forming a robust, seamless inner pipe.
We can reline up to 100 meters in a single pass, creating long, joint-free stretches of piping that stand the test of time. Even connections to the main sewer can be renovated—without removing pavement or asphalt.

More information about relining

Suitable for a Wide Range of Materials

At De Mol IROTS, we can renovate pipes made from a wide variety of materials. Many older homes and buildings still have sewer systems made from asbestos cement or cast iron—often installed around the 1950s. These, too, can be restored with spray coating or relining.
We successfully work with: