Three Stages of Home Plumbing Installation

Can you imagine living in a house with no sewage or plumbing system? Must be horrible. Home plumbing installation is not something that can be done in an instant, but why is this? The process can take days to weeks, depending on the size and conditions of the land and surrounding area. Generally, there are 3 stages to complete the installation of home plumbing. Let us go through them one by one to see why it takes so long just to install pipes.


Here are the three stages in short:

  1. Underground work 
  2. Aboveground work 
  3. Final testing and inspection

Let’s explore each stage in detail: 

Step 1. Underground Work

Generally called “Underground Rough-in Stage”. Imagine building a house, the foundation of the house is important because it can determine the fate of the building right? The base is important. The underground rough-in stage is the initial phase of plumbing installation and involves setting up the basic infrastructure for the plumbing system. This stage typically takes place during the construction or renovation of a home. The key steps involved are planning and blueprinting, pipe installation, fixture placement, ventilation system, and pressure testing. 


Step 2. Aboveground Work 

Often called the “Aboveground Rough-In or Fixture Installation Stage”

Once we completed the underground work, the fixture installation stage begins. This stage involves the installation of various plumbing fixtures and appliances. This stage involves connecting fixtures and appliances such as toilets, sinks, and dishwashers to supply and drain lines. Faucets, valves, and shut-off valves are installed in order to control the flow of water and allow for easy maintenance or repairs in the future. We then do the trim-out process which enhances the overall appearance of the plumbing fixtures. 


Step 3. Final Testing and Inspection

Lastly, we conduct testing and inspections to ensure everything is functioning properly. This stage includes people from the authorities to make sure that the plumbing system is up to standards and regulations (For readers in Billings, MT, request a building inspections here). Pipe size to system functionality will be checked. They will do a series of tests to check the plumbing system, including water pressure, flushing, and drain flow testing. We will see if there are any issues and we may go back to fixing them again before another test and inspection can be done. Any necessary adjustments or minor repairs are made to ensure that the plumbing system is fully operational and meets the required standards.


By following these three stages of home plumbing installation you can have a properly functioning and reliable plumbing system in your home. It’s important to engage professional plumbers for complex installations to ensure safety and compliance with local regulations. Lucky for you in Billings, we know a professional plumber that can help you. Remember, a good system will let you live in comfort but a bad system cost you your comfort, time, and thousands of dollars (and perhaps more!) 

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