Common Causes of Clogged Drains

Regular preventative maintenance prevents clogged drains. Routine inspections and cleanings by a licensed plumber catch issues early. Plumbers use specialized equipment to keep drains and plumbing systems in top condition.

Clogged drains are a recurring issue that can disrupt daily life and cause significant inconvenience. Understanding common causes of these blocks can help prevent them and maintain a smoothly functioning plumbing system. Here are some of the most frequent culprits behind clogged drains and how to address them effectively.

Accumulation of Hair

Hair is a primary cause of clogged drains, especially in bathrooms. Hair strands easily bind together with soap scum and other debris, creating stubborn blocks in pipes. Regularly cleaning drain covers and using hair catchers significantly reduces the amount of hair entering the plumbing system. When a blockage occurs, a plumbing company can provide professional solutions to clear the drains efficiently.

Soap Scum and Residue

Soap, particularly bar soap, can leave behind a residue known as soap scum. This residue accumulates on the pipes' walls and combines with hair, dirt, and other debris, leading to clogs. Using liquid soap or soap-free cleansers can minimize the formation of soap scum. Routine cleaning with a mixture of hot water and vinegar helps break down any build-up and keep drains clear.

Food Waste and Grease

Food waste and grease commonly cause clogs in kitchen sinks. Grease solidifies in pipes, creating a sticky coating that traps food particles and other debris. Using a strainer to catch food scraps and putting grease in a can or jar for disposal in the trash instead of pouring it down the drain can prevent these types of clogs. In cases where grease build-up leads to a blockage, a plumber can use specialized tools to clear the pipes.

Foreign Objects

Foreign objects accidentally dropped into drains can cause severe clogs. Items such as jewelry, small toys, and toiletries can obstruct pipes and impede water flow. Using drain covers and remaining mindful of what goes down can prevent obstructions. If a foreign object causes a block, professional plumbing services can retrieve the item and restore proper drainage.

Toilet Paper and Wipes

While toilet paper is designed to dissolve in water, excessive amounts can still cause clogs. Despite their name, flushable wipes often do not break down as quickly as toilet paper and contribute to blocks. Limiting the amount of toilet paper used and avoiding flushing wipes down the toilet can help prevent clogs. In the event of a blockage, a plumbing company can provide effective solutions to clear the pipes and restore normal function.

Mineral Build-up

In areas with hard water, mineral build-up often causes clogs in pipes. Calcium and magnesium can accumulate over time, reducing the width of the pipes. The restricted water flow leads to blockages. A water softener helps reduce mineral build-up and protects the plumbing system. Regular maintenance by a plumber can also help address existing mineral deposits and prevent future clogs.

Tree Roots

Tree roots can invade underground pipes, causing significant blockages and damage. Roots can grow into the pipes, causing small cracks and eventually obstructing water flow. Regular plumbing system inspections, especially in older homes with large trees nearby, can identify root intrusion early. Professional plumbers can use hydrojetting or pipe relining techniques to remove roots and repair damaged pipes.

Incorrect Disposal of Hygiene Products

If flushed down the toilet, sanitary products, cotton balls, and other hygiene items can cause severe clogs. These items do not dissolve and can accumulate in pipes, leading to blockages. Proper disposal in the trash can prevent these issues. If a clog occurs due to hygiene products, contacting a plumbing company is the best way to remove the block safely.

Preventative Maintenance

Regular preventative maintenance is key to avoiding clogged drains. Scheduling routine inspections and cleanings with a licensed plumber can help identify potential issues before they reach a critical stage. Professional plumbers use specialized equipment to clean drains thoroughly and keep the plumbing system in optimal condition.

Environmental Factors

External factors like heavy rainfall or flooding can also contribute to clogged drains. Excess water can carry debris into the drainage system, causing blockages. Ensuring gutters and downspouts are clear and damage-free helps manage excess water. In the event of an external clog, a plumber can provide practical solutions to restore proper drainage.


Understanding the ordinary causes of clogged drains can help homeowners take preventative measures and maintain a well-functioning plumbing system. Hair, soap scum, food waste, foreign objects, toilet paper, mineral build-up, tree roots, and improper disposal of hygiene products are all frequent culprits. Regular maintenance, mindful disposal practices, and professional assistance from a plumbing company can prevent these issues and keep drains flowing smoothly. By addressing clogs promptly and effectively, homeowners avoid the inconvenience and damage caused by blocked drains.


Forecast Heating, Cooling, and Refrigeration serves residential and commercial customers in Summerlin, Anthem, North Las Vegas, Boulder City and Las Vegas. Call us at 702-919-4546.

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