DIY Plumbing Repairs: What You Can Handle and When to Call a Pro

Easy DIY Plumbing Repairs

Some plumbing problems are straightforward and can be addressed with a few tools and a little know-how. Here are some of the most common plumbing issues that are perfect for DIY repair.

1. Unclogging a Drain

A clogged drain is one of the most frequent plumbing issues, and it’s often something you can fix without calling a plumber. Whether it’s a slow-draining sink, a bathtub, or a clogged shower, the problem is usually caused by a buildup of hair, soap scum, grease, or other debris in the pipes.

How to fix it:

  • Plunger: A plunger is one of the simplest tools to use for clearing a clogged drain. Place the plunger over the drain, ensure a good seal, and plunge up and down to create suction. This can often dislodge minor blockages.
  • Drain Snake (or auger): If the plunger doesn’t work, a drain snake can help you reach deeper into the pipes. Insert the snake into the drain, push it down until you feel resistance, and then twist and pull to dislodge the clog. This is especially useful for hair clogs in bathroom sinks and showers.
  • Homemade Drain Cleaner: Avoid using chemical drain cleaners, as they can damage your pipes over time. Instead, use a mixture of baking soda and vinegar. Pour half a cup of baking soda down the drain, followed by half a cup of vinegar. Let it sit for 15 minutes, then flush with boiling water to clear out the blockage.

2. Fixing a Leaking Faucet

A leaky faucet is another common plumbing problem that can be easily fixed. The constant dripping can be annoying and waste water, but the solution is often simple and inexpensive.

How to fix it:

  • Replace the Washer or O-ring: Leaky faucets are often caused by worn-out washers or O-rings inside the faucet. To fix this, start by turning off the water supply under the sink. Remove the handle and any covers or decorative caps, then use a wrench to unscrew the faucet components. Replace the worn washer or O-ring with a new one from a hardware store, then reassemble the faucet.
  • Tighten Loose Components: Sometimes, the leak is caused by a loose faucet or valve. Tighten the components carefully using a wrench, but avoid over-tightening, as this can cause damage.

3. Fixing a Running Toilet

A running toilet is a common issue that can waste a lot of water if not fixed promptly. The problem usually lies in the flapper, float, or fill valve in the tank.

How to fix it:

  • Adjust the Flapper: The flapper is a rubber seal at the bottom of the toilet tank that controls water flow from the tank to the bowl. If the flapper doesn’t seal properly, water will continuously leak into the bowl. Adjust or replace the flapper to fix this issue.
  • Check the Fill Valve and Float: The fill valve controls the amount of water that refills the tank after flushing, while the float determines when the fill valve shuts off. If the fill valve or float is not working correctly, adjust them or replace the parts as needed.

4. Fixing a Loose or Leaky Showerhead

A leaky showerhead can waste a surprising amount of water, but this is another fix most homeowners can handle on their own.

How to fix it:

  • Tighten Connections: First, ensure that the showerhead is tightly screwed onto the pipe. Use a wrench if necessary but be careful not to overtighten, as this could damage the threads.
  • Replace the Washer or Apply Teflon Tape: If tightening the connection doesn’t work, unscrew the showerhead and inspect the rubber washer inside. If it’s worn out, replace it. Additionally, wrapping Teflon tape around the pipe threads can create a tighter seal and prevent leaks.

Plumbing Tasks You Should Leave to the Professionals

While many plumbing repairs can be done by the average homeowner, there are some issues that should always be handled by a licensed plumber. These tasks often involve complex systems, require specialized tools, or carry a risk of causing significant damage if done incorrectly.

1. Pipe Replacement or Major Leaks

Replacing pipes or repairing major leaks is a task that requires the expertise of a professional plumber. While you may be able to temporarily stop a leak, replacing or repairing the damaged pipe correctly involves cutting and soldering pipes, which is best left to a professional to avoid further damage.

Why call a pro: Incorrectly replacing pipes can lead to improper sealing, causing future leaks, water damage, or even burst pipes. Professional plumbers also have the tools and experience to work with different types of piping, such as copper, PVC, or PEX.

2. Sewer Line Repairs or Replacements

Issues with your sewer line are not only complex but can also be hazardous to handle on your own. Signs of sewer line problems include frequent drain backups, gurgling noises from the drains, or sewage odors coming from the pipes.

Why call a pro: Sewer line repairs often require specialized equipment, such as drain cameras and hydro-jetting machines, to diagnose and fix the problem. Attempting to handle a sewer line issue without proper knowledge can lead to further damage, contamination, and expensive repairs.

3. Water Heater Installation and Repairs

Water heaters are essential for providing hot water in your home, but they can be dangerous to install or repair without the necessary expertise. Whether you’re dealing with a leaking water heater, inconsistent water temperatures, or a complete system failure, it’s best to call a plumber.

Why call a pro: Water heaters involve both water and electricity or gas, making them risky to work on without proper training. Incorrect installation or repairs can lead to electrical problems, gas leaks, or even explosions. A professional will ensure that your water heater is safely installed and meets local codes.

4. Bathroom or Kitchen Renovations

Major renovations that involve moving plumbing lines or installing new fixtures should always be handled by a professional plumber. If you’re planning a bathroom or kitchen remodel that requires re-routing pipes or connecting new appliances, it’s essential to hire someone with the right expertise.

Why call a pro: Improperly installed plumbing during a renovation can result in leaks, poor water pressure, and even structural damage over time. Plumbers will ensure that all pipes and fixtures are correctly installed and up to code.


Tools Every Homeowner Should Have for Basic Plumbing Fixes

Even if you plan to call a plumber for major issues, having a basic set of plumbing tools can help you handle minor repairs and prevent problems from getting worse before a professional arrives. Here are some essential tools every homeowner should have:

1. Plunger

A plunger is one of the most basic yet effective tools for clearing clogs in sinks, toilets, and bathtubs. Every homeowner should have both a standard cup plunger for sinks and a flange plunger for toilets.

2. Pipe Wrench

A pipe wrench is a must-have tool for loosening or tightening pipes, fittings, and other plumbing connections. Adjustable wrenches can also come in handy for a variety of tasks.

3. Plumber’s Tape (Teflon Tape)

Teflon tape is a thin, white tape used to seal pipe threads and prevent leaks at the joints. It’s easy to use and essential for making sure plumbing connections are watertight.

4. Basin Wrench

A basin wrench is designed for reaching and tightening or loosening nuts that are located under sinks and faucets. Its long handle and swivel jaw make it ideal for working in tight spaces.

5. Plumbing Snake (Drain Auger)

A plumbing snake is a flexible tool that can reach deep into pipes to clear clogs that plungers can’t fix. It’s a useful tool to have for clearing stubborn blockages in sinks, showers, and toilets.

6. Adjustable Wrench

An adjustable wrench is a versatile tool that can be used for many plumbing tasks, including tightening or loosening nuts and bolts on pipes and fittings.


Tackling minor plumbing issues on your own can save you time and money, but it’s important to know when to call in a professional. Issues like clogged drains, leaky faucets, and running toilets are often simple fixes that most homeowners can handle with basic tools. However, more complex tasks—such as pipe replacement, sewer line repairs, and water heater installation—require the expertise of a licensed plumber.

By understanding the limits of your DIY skills and having the right tools on hand, you can confidently address minor plumbing problems while leaving the more complex tasks to the professionals.