The Lined Pipe Repair Timeline

Lined pipe repair typically follows the same steps. Knowing what you have to go through will help you plan your lined pipe installation around your business’s needs. While the total time it takes to install CIPP varies with the needs of the pipe, you can expect to pass through these stages between “disaster” and “done”. 

Initial estimate

The initial estimate is given after a brief inspection of your pipe. This estimate may be subject to change upon a thorough examination of your pipe. This initial estimate is often sought from multiple companies before one company is chosen to complete the job. Once you’ve worked with an agency multiple times and have come to prefer their work and service, this initial estimate may be handled differently. Primarily, it’s conducted to establish whether or not lined pipe is an option for your repair, and roughly how much it will cost you.

Detailed measurements

After the initial inspection, you hire a company. The company does a more thorough inspection of your pipe and problem. They also take detailed measurements. Each CIPP liner is woven to fit your pipe exactly. They have to custom order it. These measurements and inspections tell them everything they need to know about your job. 

Material assembly

The pipe liner is commissioned and created. Your installation company will also mix up the resin that will be used to create your new, cured in place pipe. Assembling these materials may take a little time. The sooner you can get the previous stages over with, the sooner your pipe can be complete. Unlike the first two stages, there’s not much a company can do to hurry this stage.

Preliminary actions

On the day of the CIPP installation, your installation company will have to take some preliminary actions. This could involve cleaning your pipe, finishing the access points to the pipe, or dealing with intrusive roots. Cutting roots back a week or so before the installation may be too early, giving the roots time to grow back. The details of these actions will vary depending on your needs. If they’ll take a significant amount of time, the contract may move it to the day before installation rather than the day of. 

Placing and curing

The resin-soaked sleeve is inserted into the pipe. Your lined pipe has just been started. Once the sleeve is in place, hot air is used to keep it in place. It’s also used to cure the pipe where it rests. Since lined pipes can be anywhere from 4’’ to 120’’ in diameter, the curing time will vary. It can be as little as four hours or as many as twelve without being unusual for the process. 

Final inspections

The last stage of the lined pipe timeline is the final inspection. Before the pipe is declared “cured” (pun intended), it’s inspected for imperfections or errors. Video inspections can be conducted along the length of the pipe to ensure high, uniform quality of the pipe. 

The timeline for lined pipe repair seldom varies. Talk to your contractor about attaching hours to the stages of CIPP installation. This basic timeline should be enough to help you plan your CIPP installation around your business’s needs.