Common DIY Home Plumbing Mistakes and How to Avoid Them

Plumbing is an essential aspect of any home. It is responsible for distributing clean water for drinking, washing, and other household activities. Plumbing systems also remove wastewater and sewage from homes. Unfortunately, plumbing issues often arise, and many homeowners prefer to handle them independently. 

While DIY plumbing can save money, it can also cause more damage if not done correctly. Here are some common home plumbing mistakes and how to prevent them from happening:

Mistake 1: Using the Wrong Tools 

Some homeowners may think using any device can fix their plumbing issue, but that’s not always true. The wrong one can cause more damage to the plumbing system, leading to costly repairs. For instance, using a plunger to fix a clogged sink may work, but using it to unclog a toilet may cause the wax ring to break.

The Solution: Always ensure you use the correct tool for the job. If you are uncertain about it, consult an expert plumber. They will advise you on the best tool for your plumbing problem.

Mistake 2: Overusing Chemical Drain Cleaners

Chemical drain cleaners are a quick solution to unclog a drain. However, overusing them can lead to severe damage to your plumbing system. The chemicals in the drain cleaners can corrode your pipes, leading to leaks and cracks. Additionally, the chemicals can harm the environment if not disposed of correctly.

The Solution: Before using chemical drain cleaners, use a plunger or a plumbing snake to unclog the drain. If the clog persists, contact a plumber to clear the drain. They will use safe and effective methods to unclog your drain without causing damage to your plumbing system.

Mistake 3: Ignoring Small Leaks

Small leaks may seem insignificant, but they can cause significant damage if ignored. The leaks can damage your walls, floors, and even your home’s foundation. Additionally, small leaks can cause mould and mildew growth, leading to health problems for you and your family.

The Solution: Always fix small leaks as soon as possible. If you notice a small leak, turn off the water supply to the affected area and call a professional plumber. They will repair the leak and prevent further damage to your plumbing system and home.

Mistake 4: Overtightening Connections

Overtightening connections is a common DIY plumbing mistake. Tightening connections too much can cause the threads to strip, leading to leaks. Additionally, overtightening can cause cracks in the plumbing system, leading to costly repairs.

The Solution: When tightening connections, use a wrench to tighten the connection until it’s snug. Don’t over-tighten the connection. If you are still uncertain how to tighten the connection, call a plumber as soon as possible.

Mistake 5: Not Turning off the Water Supply

Not turning off the water supply is another common DIY plumbing mistake. Turning off the water supply is essential when working on the plumbing system. If the water supply is not turned off, you risk flooding your home, leading to costly repairs.

The Solution: Always turn off the water supply before working on the plumbing system. Consult a professional plumber if you need help turning the water supply off.


DIY plumbing can save money but can cause damage if not done correctly. Avoid common mistakes such as using the wrong tools, chemical drain cleaners, ignoring small leaks, overtightening connections, and not turning off the water supply. Use the correct tools, fix minor leaks, tighten connections until snug and turn off the water supply when plumbing. If you need more clarification about any plumbing issues, turn to a professional plumber.

Jensen Property Maintenance provides reliable plumbing services for residential and commercial properties. Our experienced plumbers are fully equipped to handle any plumbing issue, from the smallest repair to the most complex installations. We offer the highest quality of service and customer satisfaction. Call us at 07395 324947 for a free estimate!