Commercial Plumbing Cost Per Square Foot
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Commercial Plumbing Cost Per Square Foot

On average, the cost per square foot of commercial plumbing ranges from $4-$6. Most commercial space will cost closer to $6, though, based on a variety of factors, according to 4FrontEnergy. Let’s break down commercial plumbing costs for your upcoming project.

How Much Does Commercial Plumbing Cost Per Square Foot?

$4-6 per square foot is a price estimate for “rough-in plumbing” for new construction projects. Rough-in plumbing is when the plumbing lines and framework are laid out before the rest of the structure’s framework is completed. The “finish plumbing” portion comes at a later date when all fixtures and appliances are installed.

The cost per square foot can sometimes be higher than that of new construction when it comes to dealing with commercial plumbing projects. Typically, though, costs will remain in the $4-$6 per square foot range.

Here are the average costs of commercial plumbing needs:

  • Lowest Cost: $4 per square foot.
  • Average Cost: $5 per square foot.
  • Highest Cost: $6 per square foot.

Commercial Plumbing Cost Factors

There are a few factors to be mindful of before estimating your final bill. The most prominent factors for plumbing services include the following:

  • Labor.
  • Materials.
  • Fixtures.
  • Permits And Inspections.


Labor needs to be a significant consideration when coming up with a budget. Paying for professional service for plumbing needs is a must. You will need to ensure all plumbing is up to code, and an experienced professional will know all the local regulations.

Generally, in new construction plumbing, labor will be included in the total price. Commercial property owners can expect to pay between $50-$120 per hour for each plumber working the job.


The type of physical material of the plumbing pipes will affect the cost per square foot. The two main material types include PEX and copper piping. PEX piping is a more contemporary option for most projects. It is flexible, affordable, and considered quite easy to install. It cannot be used to connect directly to water heaters or outdoors, however.

Copper piping is a classic plumbing option. Used since the early 1900s, this option is more flexible overall than PEX. It is the more expensive option, though. This piping type is safe for outdoor use and within water heaters.


Plumbing fixtures can include the following:

  • Tubs.
  • Sinks.
  • Faucets.
  • Toilets.
  • Showers.
  • Water Heaters.
  • Dishwashers.

Depending on the type of fixtures you want, your overall cost can either decrease or increase. For instance, automatic sinks or rainfall showers will cost more than standard options. Commercial fixtures are usually heavy-duty, meaning costs will increase. It will ultimately be up to you and/or the design team to choose the fixtures that you desire.

Permits And Inspections

Building permits are required for new construction and plumbing replacements. The plumbing service will secure these permits for you. However, you will still be responsible for paying for the permits, likely ranging from $50-$500.

You will also be responsible for scheduling any inspections for new construction projects. Inspection costs will vary by location, but most range anywhere between $200-$500 total.

*These prices are estimated. Contact the team at Holder Plumbing for more information!

Holder Plumbing In Phoenix Valley AZ

Our full-service plumbing company has proudly served the Phoenix Valley since 1983!  With over 35 years of experience there’s no problem we haven’t fix and cannot fix at your home.  From clogged drains and overflowing toilets to sewer line problems and sump pumps our team will get your home’s plumbing in tip top shape. Our professional services will put your mind at ease knowing that you’ve hired seasoned professionals who will get the job done right! Contact us today!

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