All You Need to Know About New Construction Plumbing

There are two main categories of plumbing within this industry. The first is service plumbing which involves post-construction maintenance or alterations to an existing structure. The second category of plumbing is new construction plumbing

New construction plumbing applies to new buildings where the contractors install the plumbing system for the first time. It has two subdivisions, the finish and rough-in plumbing. Every residence and commercial establishment that currently possesses plumbing has, at some point, passed through this form of construction plumbing. At such a time, the plumbing team installed a new system for the structures for the first time. 

Components of New Construction Plumbing

So, what are some of the most important aspects that new construction requires in its plumbing system at the beginning of the construction process of a building?

Channels for Delivering Water

Pipes that carry water supply are one of the primary components. The main purpose of installing these pipes is to transport clean drinking water from an external source into the building. These pipes typically connect to public water mains or individual household wells for their water supply.

Pipes for Draining Wastewater

Using drain pipes is essential in nearly all plumbing installations. These pipes are much larger than the ones used to supply drinking water and serve in transporting wastewater to an external treatment facility. When installing these pipes, contractors hook them up to standard plumbing fixtures like showers, sinks, and toilets. These outlet pipe connections channel the wastewater from the building to either the municipal sewage system or a private septic tank.


Vents are also a vital part of the most piping system. These ducts provide ventilation for the building’s drainage systems, ensuring they function properly. Picture a straw with a glass of liquid to understand how these devices function. Despite the pull of gravity, the straw will not automatically empty itself of the water contained within it if you position your finger over the top edge of the straw. When you take your finger off the straw, air can replace it, and the water quickly spills through the other end. Vent pipes cause this effect to ensure that fluids in the drain pipes connected to them can drain adequately and without obstruction through the vent pipes themselves.

Water Heater

The water heater is yet another staple of modern plumbing systems. Plumbers install these brand-new units and connect them to the building’s water distribution network so appliances like sinks and showers can use hot water if desired. A pan connected to a drain frequently functions as a base for water heaters in many homes. If the water heater springs a leak, the produced water collects in the pan and drains away through the drain pipe connected to the water heater.

Single Plumbing Fixtures

Once the other plumbing components are ready, it’s time to make the final additions to the new construction plumbing. The last bit of the work is for installing individual plumbing fixtures. The fixtures include sinks, faucets, tub, shower snip and controls, and commodes. Typically, this work comes in at the final stages of construction.


Once the new construction plumbing system installation is over, it has to go through a series of tests. Only after passing these tests can they deem the system fit for use. Testing the pipes involves pressurizing them with air and then waiting a set amount of time to see if any leaks develop. It is common practice to use water to pressure test all new pipework.

Work With the Best New Construction Plumbing Contractors

If you need plumbing work done in a new building in Toronto, hire a company with extensive industry experience. Suppose you hire professionals who appreciate the significance of plumbing to any building. In that case, their work will be of the highest quality during the initial installation phase and last for years.