Pipe Relining

What Is Pipe Relining and How Does It Work

Pipe relining is a trenchless pipe repair method that is an ideal alternative to the replacement of water and sewer lines.

It can extend the life of your pipes and save you money compared to when you choose traditional repairs that require complete line replacement.

How do you know if trenchless pipe relining is right for you? Read on to find out.

What Is Pipe Relining?

Pipe relining is a trenchless pipe restoration process where a new inner pipe is placed inside the existing pipe. A technician will excavate the damaged section of the pipe and insert a semi-rigid liner pipe. The liner pipe is then cured, and the damaged pipe is removed.

With trenchless pipe relining, only the damaged area is dug. This means you can maintain your yard and landscaping and avoid disturbing your property.

What Does the Process Involve?

The professional will thoroughly examine the pipe and surrounding infrastructure on the first visit to determine how best to approach the repair. They will remove any debris that might be present, clean the area and repair any cracks or dents in the existing pipe.

They then place a new internal pipe in the preexisting pipe and seal the new lining to the existing pipe.

Types of Internal Pipe Coating

1) Spray-in-Place Relining

The liner is applied in liquid form directly to either the inside or outside of the existing pipe. The liner is cured in place by applying heat to the liner and pipe.

Spray-in-place pipe relining is good for a pipe that has been broken or crushed as it does not require complete excavation.

2) Cured-in-Place Relining

Today, the cured-in-place relining method is the most commonly used trenchless pipe repair method.

This process is preferred because it allows for the use of a variety of different liners that can be applied to the existing pipe. You can also use a liner that will be able to handle the pressure of the water or sewer line.

How Much Does Pipe Spray Relining Cost?

The cost of trenchless pipe relining depends on the material that is used. The type of pipe relining method used can also impact the cost.

When you contact a professional for an estimate, give them information about the pipe and the problem. This will help them determine the best solution for you.

What to Consider Before You Choose a Trenchless Pipe Relining Method

When you make your decision, take a look at these factors. If a problem is present, such as a hole in a pipe, you will need to do more work to the pipe than if you have a pipe that has a slight leak.

You also need to consider how much traffic will be passing through the area where the pipe is located. If it is a heavily-used area, you may want to consider a high-quality pipe that knows how to withstand the traffic, such as PVC or HDPE.


Trenchless pipe relining will help you avoid the extensive and inconvenient excavation required for traditional pipe replacement. The process of trenchless relining does not require you to dig up your property, which is a big benefit for both you and your home.

New Pipes Inc. offers commercial plumbing services to help you strengthen your line repairs. Get in touch with us today to learn more.

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356 Mathew St
Santa Clara, CA 95050
(408) 269-1969
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