Plumbing Inspection Checklist

Discover the ultimate plumbing inspection checklist template for efficient maintenance. Stay proactive, avoid emergencies, and extend your plumbing system’s lifespan.

Plumbing inspection checklist

Plumbing Inspection Checklist: A Step-by-Step Guide

When maintaining a well-functioning home, paying attention to your plumbing system is crucial.

Regular plumbing maintenance and inspections can help detect potential issues early on, preventing costly repairs and water damage.

We have created the ultimate plumbing checklist template to assist you in this important task.

This comprehensive checklist will guide you through a step-by-step process to ensure the efficiency and safety of your plumbing system.

Whether you’re a homeowner, tenant, or property manager, this plumbing checklist template will be your go-to resource for keeping your plumbing system in shape.

The following sections will walk you through each checklist step, providing valuable insights and tips.

Let’s dive in and get your plumbing system running smoothly!

Download our handy plumbing inspection checklist PDF.

Plumbing inspection checklist

Pre-Inspection Preparation

Before conducting a thorough plumbing inspection, preparing yourself and gathering the necessary tools and equipment is crucial.

This ensures you have everything you need to assess your plumbing system efficiently.

Additionally, taking the appropriate safety precautions is essential to protect yourself from potential hazards.

In this section, we will outline the essential steps for pre-inspection preparation.

Gathering necessary tools and equipment

To conduct a comprehensive plumbing inspection, you will need the following tools and equipment:

Having these tools readily available will make it easier to identify and address any plumbing issues that may arise during the inspection.

Turning off the water supply and draining the system

Before beginning the inspection, turning off the water supply to your property is important.

Locate the main shut-off valve near the water meter or in a utility room, and ensure it is fully closed.

This prevents water flow during the inspection, reducing the risk of leaks or water damage.

Also, draining the plumbing system helps eliminate excess water and relieve pressure.

Open all faucets, taps, and flush toilets to drain the water from the system.

This step is particularly important when inspecting pipes, as it allows for a more accurate assessment of their condition.

Ensuring personal safety measures

Plumbing inspections involve working with potentially hazardous substances and tools.

To protect yourself, it is crucial to take the following safety measures:

  • Wear protective clothing, such as gloves and goggles, to shield yourself from any chemicals or debris you may encounter.
  • Ensure proper ventilation in the area you are inspecting to prevent the buildup of harmful gases, especially when inspecting the water heater or drainage system.
  • Use caution when working with sharp tools, such as pipe cutters, to avoid accidents or injuries.
  • Keep a first aid kit nearby for minor injuries during the inspection.

By taking these pre-inspection preparation steps, you will be well-equipped and protected while assessing your plumbing system’s condition.

This allows for a more efficient and safe inspection process.

General Plumbing Inspection

During a general plumbing inspection, thoroughly assessing your plumbing system’s overall condition is crucial.

By detecting any potential issues early on, you can prevent costly repairs and maintain the efficiency of your plumbing.

This section will guide you through the essential steps of a general plumbing inspection.

Checking for Visible Leaks, Drips, or Water Stains

Inspect all visible pipes, connections, and fixtures for any signs of leaks, drips, or water stains.

Look under sinks, around toilets, near water heaters, and in utility rooms. Pay close attention to joints, valves, and supply lines.

If you notice any water accumulation or discolouration, it may indicate a leak that needs to be addressed promptly.

Inspecting Faucets, Taps, and Showerheads for Proper Functionality

Turn on all faucets, taps, and showerheads to check for proper functionality.

Ensure that water flows smoothly without any irregularities or reduced pressure.

Observe if there are any leaks around the handles or base of the fixtures. Additionally, assess the condition of the aerators and showerhead nozzles.

Clean or replace them if they are clogged or damaged.

Examining Pipes for Signs of Corrosion, Cracks, or Damage

Inspect all exposed pipes for signs of corrosion, cracks, or damage.

Corroded pipes may appear discoloured or have visible rust.

If you notice any leaks or dampness around the pipes, it could indicate a problem.

Use a torch to carefully examine the pipes, focusing on areas near joints, bends, and connections.

Verifying Proper Functioning of Toilets

Check the toilets in your property to ensure proper functioning.

Start by flushing each toilet individually and observe if the flushing mechanism is smooth and complete.

The toilet should refill adequately without any delays or irregularities.

Additionally, inspect the seals around the toilet’s base for any signs of leaks or water damage.

A properly functioning toilet is essential for maintaining a healthy plumbing system.

By conducting a thorough general plumbing inspection, you can identify any issues that require attention and take proactive measures to maintain the efficiency and safety of your plumbing system.

Water Heater Inspection

Regular water heater inspection is crucial to ensure optimal performance and longevity.

In this section, we will guide you through the essential steps of inspecting your water heater.

Remember to turn off the power or gas supply to the unit before beginning the inspection process.

Checking for Leaks or Corrosion

Inspect the water heater tank and connections for any signs of leaks or corrosion.

Start by visually examining the tank’s exterior, paying close attention to the bottom area where leaks often occur.

Look for any water stains, dampness, or rusting.

If you notice any signs of leakage, it is important to address the issue promptly to prevent further damage.

Testing the Pressure Relief Valve

The pressure relief valve is a crucial safety component of your water heater.

To ensure it functions properly, carefully lift the valve’s lever to release a small amount of water.

The valve should discharge water smoothly and stop when the lever is released.

If the valve fails to operate correctly or water continues to flow after releasing the lever, it may need to be replaced.

Checking the Drain Valve

Inspect the drain valve located near the bottom of the water heater.

Place a bucket underneath the valve and slowly open it to drain a small amount of water.

This process helps remove sediment buildup that can affect the unit’s efficiency.

If the drain valve leaks or fails to close completely after draining, it may require replacement or tightening.

Verifying Temperature and Pressure Settings

Ensure that your water heater’s temperature and pressure settings are appropriately adjusted.

The temperature should be set between 50-60 degrees Celsius (120-140 degrees Fahrenheit) to prevent scalding while providing hot water for your needs.

Additionally, check the pressure gauge or valve to ensure it is within the recommended range, typically around 1.5 to 2.5 bar (20 to 35 psi).

Inspecting Venting and Gas Connections (for Gas Water Heaters)

If you have a gas water heater, it is crucial to inspect the venting system and gas connections for any issues.

Look for signs of damage or disconnection in the vent pipes, ensuring they are properly sealed and free of obstructions.

Check the gas supply line for any leaks or loose connections.

If you detect the smell of gas or suspect a gas leak, immediately turn off the gas supply and contact a qualified professional.

Final Checks and Considerations

Before concluding the water heater inspection, perform a final visual check of the unit, ensuring all connections are secure and there are no unusual noises, vibrations, or odours.

Take note of any abnormal observations, as they may indicate underlying problems that require attention.

Remember to restore the power or gas supply to the water heater after the inspection.

Regular water heater inspections and maintenance significantly extend the lifespan of your unit and ensure its safe operation.

Following these inspection guidelines, you can identify potential issues early on and take appropriate action to avoid costly repairs or unexpected breakdowns.

Drainage and Sewer System Inspection

A properly functioning drainage and sewer system is crucial for maintaining a clean and healthy environment in your home.

Regular inspections of these systems can help you identify potential issues early on and prevent costly repairs.

In this section, we will guide you through the key steps to inspecting your drainage and sewer system effectively.

Inspecting Drains for Proper Drainage

Start by examining your home’s sinks, bathtubs, and showers to ensure they are draining properly.

Slow drainage or standing water could indicate a clog or pipe blockage. Run water in each fixture and observe how quickly it drains.

If you notice any sluggishness, addressing the issue promptly is essential.

Checking for Leaks or Damage

Inspect the exposed pipes in your basement, crawl spaces, or utility areas for any signs of leaks or damage.

Look for water stains, dampness, or corrosion on the pipes.

Leaks or drips may indicate loose connections or worn-out seals.

Pay attention to any foul odours, indicating sewer pipe leaks or cracks.

Verifying Toilet Drain Functionality

Toilet drains are prone to clogs and blockages due to the frequent use of toilet paper and other waste materials.

Flush each toilet in your home and ensure they flush properly without any gurgling sounds or water backup.

If you notice any irregularities, it’s important to address them promptly to prevent sewage backups or further damage.

Testing Drain Traps and Cleanouts

Drain traps, such as the P-traps under sinks, are vital in preventing unpleasant odours and the entry of sewer gases into your home. Inspect these traps for any leaks, blockages, or damage.

Additionally, locate and check the cleanout access points along the sewer line.

Ensure they are clear of debris and easily accessible for maintenance purposes.

Remember, a comprehensive inspection of your drainage and sewer system can help you detect potential problems before they escalate into major issues.

Regular maintenance and prompt repairs will ensure your plumbing system’s efficient and safe functioning.

Note: If you encounter any complex plumbing issues during your inspection, it’s advisable to seek the assistance of a professional plumber to avoid any further damage or potential health hazards.

Bathroom Plumbing Fixtures

Bathroom plumbing fixtures are crucial in our daily routines, providing us with essential functions such as handwashing, bathing, and maintaining personal hygiene.

It is essential to regularly inspect and maintain these fixtures to ensure their proper functionality and prevent potential issues that could disrupt our daily lives.

In this section, we will explore the key aspects of bathroom plumbing fixtures that should be included in your plumbing checklist.

Sink and Basin Faucets

Sink and basin faucets are commonly used in bathrooms for handwashing and brushing teeth.

Regularly inspecting these fixtures can help you identify and address any leaks or drips.

Here’s what you should do:

  • Check for leaks or drips from the faucet spout and handles.
  • Ensure the water flow is smooth without any splashing or irregularities.
  • Test the hot and cold water supply, ensuring both sides function properly.
  • Verify that the faucet handles are easy to operate without stiffness or resistance.


Toilets are one of the most frequently used plumbing fixtures in any home.

Proper maintenance and inspection can help prevent water wastage and potential toilet malfunctions.

Consider the following when inspecting your toilets:

  • Check the toilet tank for any water leaks or continuous running water.
  • Ensure the flush mechanism operates smoothly and without delays.
  • Inspect the toilet bowl for any cracks or leaks around the base.
  • Verify that the toilet seat is securely fastened and in good condition.

Shower Enclosures and Tubs

Shower enclosures and tubs provide us with a space to relax and refresh ourselves.

Regular maintenance and inspection can help identify and address issues before they escalate.

Here’s what you should look out for:

  • Inspect the showerhead for any leaks or irregular water spray patterns.
  • Check the tub or shower drain for any clogs or slow drainage.
  • Examine the grout and caulking around the shower or tub for any signs of deterioration or mould growth.
  • Test the hot and cold water supply, ensuring both sides function properly.

Bathroom Exhaust Fans

Bathroom exhaust fans are vital in maintaining proper ventilation and preventing excessive moisture buildup.

It is important to ensure these fans are functioning optimally.

Consider the following during your inspection:

  • Turn on the bathroom exhaust fan and check if it runs smoothly without any unusual noises.
  • Verify that the fan is effectively removing steam and moisture from the bathroom.
  • Clean or replace the exhaust fan filter if necessary to maintain optimal performance.
  • Ensure the fan vent is clear of any obstructions or debris.

By including these bathroom plumbing fixtures in your plumbing checklist, you can proactively identify and address any issues, ensuring your bathroom’s efficient and reliable functionality.

Regular inspections and maintenance will help prevent costly repairs and potential disruptions to your daily routines.

Kitchen Plumbing Fixtures

A well-functioning kitchen plumbing system is essential for daily cooking, cleaning, and dishwashing.

This section will guide you through inspecting and maintaining various kitchen plumbing fixtures, ensuring their efficiency and longevity.

Inspecting the Kitchen Sink

When it comes to the kitchen sink, it is crucial to check for any leaks, blockages, or damaged pipes.

Start by examining the sink basin and surrounding areas for water leakage or staining.

Inspect the faucet for leaks or drips, ensuring it turns on and off smoothly.

If you have a sprayer attachment, test its functionality as well.

Check the water supply lines and drain connections for any visible leaks or loose fittings.

Verifying the Functionality of the Dishwasher

A dishwasher is a time-saving appliance in any kitchen, requiring proper maintenance to ensure optimal performance.

Start by inspecting the dishwasher’s exterior for any visible damage or leaks.

Open the dishwasher and check for any blockages or debris in the filters, spray arms, and drain area.

Test the dishwasher by running a cycle, ensuring it fills, drains, and cleans the dishes effectively.

Pay attention to any unusual noises or odours during the operation.

Checking the Garbage Disposal

The garbage disposal is a convenient feature in many kitchens, but it can become a source of problems if not properly maintained.

Begin by turning off the power to the garbage disposal unit.

Inspect the unit for any visible damage, such as cracks or leaks.

Test the functionality by running cold water and turning on the disposal.

Listen for any unusual grinding or rattling sounds, which could indicate a blockage or mechanical issue.

If necessary, clean the disposal using a manufacturer-approved cleaner or a mixture of baking soda and vinegar.

Examining Water Supply Lines and Drain Connections

The water supply lines and drain connections are critical components of your kitchen plumbing system.

Inspect the water supply lines for any leaks or loose fittings.

Check the shut-off valves to ensure they operate smoothly and effectively stop the water flow when needed.

Examine the drain connections under the sink for any signs of leakage or corrosion.

It’s also essential to ensure that the drainpipe is properly connected to the main sewage system and shows no signs of blockage.

Remember, proper maintenance and regular inspections of your kitchen plumbing fixtures can help prevent costly repairs and ensure the smooth functioning of your kitchen.

Following these guidelines, you can keep your kitchen plumbing in excellent condition and avoid any unexpected plumbing issues while preparing meals or cleaning up.

Outdoor Plumbing Inspection

Outdoor plumbing systems play a crucial role in maintaining a functional and efficient home.

Regular inspection and maintenance of these outdoor components can help prevent costly repairs and ensure the proper functioning of your plumbing system.

In this section, we will guide you through the essential steps to inspect your outdoor plumbing and identify any issues that may require attention.

Examining Outdoor Taps and Hoses

Begin by checking all the outdoor taps and hoses around your property. Look for any signs of leaks, damage, or corrosion.

Ensure that the taps are turning on and off smoothly without any difficulties.

If you notice any leaks or drips, tighten the connections or replace worn-out washers.

In case of severe damage or leaks, it may be necessary to call a professional plumber to repair or replace the taps.

Checking Irrigation Systems and Sprinklers

Inspect your irrigation systems and sprinklers to ensure they are functioning properly.

Turn on the system and observe each sprinkler head for even water distribution.

Look for clogged or damaged sprinkler heads that require cleaning or replacement.

Verify that the timers and controls are set correctly and adjust them if necessary.

Properly functioning irrigation systems help maintain a healthy and vibrant outdoor landscape while conserving water.

Inspecting Gutters and Downspouts

Inspect your gutters and downspouts to ensure they are clear of debris or blockages.

Clogged gutters can lead to water overflow and potential damage to your property’s foundation.

Use a ladder and gloves to remove any leaves, twigs, or other obstructions from the gutters.

Ensure the downpipes are securely attached and direct water away from your home’s foundation.

Consider installing gutter guards to minimise future clogging and maintenance.

Verifying Proper Drainage

Check the outdoor drainage systems to ensure they are functioning effectively.

Look for any signs of standing water or poor drainage around your property.

Ensure the ground slopes away from your home’s foundation, allowing water to flow freely.

If you notice any areas of inadequate drainage, consider installing additional drains or regarding the landscape to prevent water accumulation.

Maintenance and Troubleshooting Tips

Proper maintenance and timely troubleshooting can help you address common plumbing issues and ensure the longevity and efficiency of your plumbing system.

Here are some valuable tips to help you maintain and troubleshoot your plumbing effectively:

Regular Inspection and Cleaning

Regularly inspect your plumbing system to identify potential issues before they escalate into major problems.

Check for leaks, drips, and signs of corrosion.

Clean faucet aerators and showerheads to remove mineral deposits that can affect water flow.

Prevent Clogs

Prevent clogs in your drains by using drain covers or strainers to catch hair, food particles, and other debris.

Avoid pouring grease or oil down the drain, as they can solidify and cause blockages.

Use a plunger or a plumbing snake to clear minor clogs.

Maintain Proper Water Pressure

Excessively high water pressure can strain your plumbing system and cause leaks.

Install a pressure regulator to ensure the water pressure remains within a safe range (usually between 40-60 psi).

High-pressure readings may require professional adjustment.

Inspect and Maintain Seals and Valves

Check the seals and valves in your plumbing system regularly.

Replace worn-out or damaged seals on faucets, toilets, and valves to prevent leaks.

Ensure that shut-off valves are working properly and can be easily turned off in emergencies.

Prevent Frozen Pipes

During cold weather, prevent frozen pipes by insulating exposed pipes, especially those in unheated areas such as basements, attics, and crawlspaces.

Let faucets drip slightly during freezing temperatures to relieve pressure and prevent pipe bursts.

Address Running Toilets

A running toilet can waste significant water and, in some cases, increase water bills.

If your toilet continues to run after flushing, check the flapper valve and adjust the chain or replace the valve if necessary.

A running toilet may also indicate a problem with the fill valve, which might need adjustment or replacement.

Maintain Water Heater

Regularly drain and flush your water heater to remove the sediment buildup, which can reduce its efficiency and lifespan.

Test the pressure relief valve to ensure it’s functioning properly. Insulate the water heater and its pipes to improve energy efficiency.

Address Slow Drains

If your drains are slow, use a natural drain cleaner of baking soda and vinegar.

Pour hot water down the drain to clear minor clogs.

For stubborn clogs, use a plumber’s snake or seek professional assistance.

Know the Location of Shut-Off Valves

Familiarise yourself with the location of shut-off valves for water supply to your fixtures and appliances.

In a plumbing emergency, such as a burst pipe or major leak, quickly shutting off the water supply can minimise damage.

Consider Professional Help

If you encounter persistent plumbing issues or complex problems beyond your expertise, you should seek assistance from a qualified plumber.

They have the knowledge and experience to diagnose and resolve plumbing problems efficiently.

Remember, proactive maintenance and prompt troubleshooting can save you time, money, and the hassle of dealing with major plumbing emergencies.

By following these tips, you can keep your plumbing system in optimal condition and enjoy a hassle-free plumbing experience.


Regular plumbing maintenance is crucial to ensure the efficiency and safety of your plumbing system.

By following a comprehensive plumbing checklist template, you can proactively address any potential issues and avoid costly repairs in the long run.

Using a checklist allows you to systematically inspect every aspect of your plumbing system, from general plumbing fixtures to water heaters, drainage systems, and outdoor plumbing.

It helps you identify leaks, drips, corrosion, and other common problems leading to water damage or plumbing failures.

By performing routine inspections and addressing minor issues promptly, you can prevent major plumbing emergencies and extend the lifespan of your plumbing system.

Additionally, regular maintenance helps you conserve water, reduce utility bills, and promote a healthier living environment.

Remember to turn off the water supply and drain the system before conducting any inspections or repairs.

Use the appropriate tools and protective equipment to ensure your safety.

In conclusion, the plumbing checklist template is valuable for homeowners and professionals.

By following the step-by-step guide outlined in the checklist, you can take control of your plumbing system’s maintenance, troubleshoot common issues, and ensure the efficient functioning of your home’s water supply and drainage.

Stay proactive, prioritise regular plumbing inspections to avoid unexpected problems and maintain a safe and efficient system for years to come.

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