Everything You Need to Know About Commercial Plumbing Inspections


Oftentimes commercial systems are rarely given a second thought until problems bubble-up. As a commercial building owner, it’s important to make sure that all your systems are in top working condition. 

When it comes to commercial plumbing, problems can be catastrophic to your building and your budget. A commercial plumber can identify problems before they grow out of control during regular inspections. 

Here is everything you need to know about commercial plumbing inspections, from benefits to what to expect, and more!


Why are Commercial Plumbing Inspections Important?


When it comes to your plumbing system, most of it’s hidden from view which is why it’s hard to catch any problems early. Most plumbing problems start small, but oftentimes you don’t become aware until it’s far too late. 

Regular commercial plumbing inspections catch these problems early. The benefits of regular commercial plumbing inspections far outweigh the cost. 

A commercial plumber will:

  • Determine corrosion levels within your plumbing system, and any cracks or leaks in the pipes
  • Check your entire plumbing system and determine the amount of useful life left in your pipes
  • Ensure that your plumbing system is up-to-date with building codes and running smoothly
  • Identify plumbing problems early so you can fix them, preventing greater damage to your system

While plumbing inspections are probably another thing to add to your never-ending list for building management, it can save you a lot of money in the long-run.  


How Often Should You Have Your Plumbing Inspected?


Deciding how often you should have your plumbing systems inspected depends on the age of your system and if it has a history of plumbing issues. The best practice for scheduling commercial plumbing inspections is quarterly.  

But there are specific cases where you should move outside this schedule, including:

  • Discovering problems in your system like pinhole leaks, low water pressure, and discoloration or bad taste. If you notice any issues, you should have a professional commercial plumber complete an inspection immediately.
  • Before you plan on buying or selling your commercial property. This can avoid costly repairs.
  • Shortly after installing a new plumbing system. This ensures correct installation and checks for backflow or cross-contamination from drain lines.

what does plumbing inspection entail

What’s Included in a Commercial Plumbing Inspection?

A commercial plumbing inspection will test all pipes, appliances, and drains checking for:

Active Leaks

Your licensed plumber will check for active leaking by inspecting all pipes and fittings, to make sure they are tight and secure. They will also look for evidence of a leak such as water spots, moisture or puddles, and any mildew or mold.

Signs of Corrosion

A professional commercial plumber will look at your all faucets, sinks, tubs, and showers, as well as visible pipes for signs of limescale. This indicates higher concentrations of corrosion that may also be present in the pipes.

Water Pressure

Low water pressure can often be a symptom of corrosion build-up in your pipes or a blockage. But, there also may be too much pressure build-up that could cause a pipe to burst. Your plumber will check to make sure that your water pressure is between the normal range of 40psi to 80psi.

Valve Operation

Verifying that emergency shut-off valves are in working order is not only important but a safety issue. Replace any broken or malfunctioning valves.

Water Heaters

Your water heater consumes a lot of energy, and it’s important to make sure it’s running as efficiently as possible. Your commercial plumber will check water heaters for leaks and sediment buildup. 

They will inspect for proper temperature, and test all safety valves and overflow. Fix any issues discovered immediately.


An improper or non-working flapper can lead to losing 200 gallons of water a day. Your plumber will check flappers on all toilets, as well as for any leaks, cracks, or loose fittings which can occur over time.

Drains and Main Line Stoppages

All drains are tested for flow rate. Slow or clogged ones will need to be power-rodded or hydro jetted to restore function. Additionally, get a video pipe inspection. Your plumber will feed a long cord with a camera at the end of your drain. 

They can identify any issues with your drain pipes, as well as your main sewer line. Things like tree roots, sludge build-up, foreign objects lead to major problems that aren’t cheap to fix but can be catastrophic to your building.

Backflow Testing

All commercial buildings need annual backflow testing and prevention devices installed. This ensures that your system’s water isn’t flowing backward and/or contaminated by chemicals or other substances. 

Detailed Report

After your commercial plumber has completed their inspection, you will receive a detailed report of all findings. This will include any issues identified and the suggested corrective action for you to take. 

It should also let you know what’s the most urgent issues to focus on. Use this report to plan and budget for current and future maintenance.


Should You Hire a Commercial Plumber to Perform an Inspection?


Yes! Commercial plumbing is very different from residential plumbing. The plumbing system in a commercial building is more complex and built for high-volume usage. Hiring a professional commercial plumber is the best option to make sure your system is in top shape.

what is checked in plumbing inspection

Commercial plumbing systems can also have different types of issues depending on the industry. Commercial kitchens have floor drains. This can lead to problems with grease build-up within the pipes.

An office building would rarely run into a problem like that.

At the end of the day, plumbing repairs can be expensive in commercial buildings. You must stay proactive with your inspections because they will end up saving you quite a lot of money. 

We hope that with this information about a commercial plumbing inspection, you feel prepared to speak with a professional plumber about your needs.

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