Availabe 24/7

Emergency Callouts

Contact Us Today

0777 12 00075

Get in Touch

support@drainage-plumbing.co.uk

Book Now

What’s Blocking Your Shower Drain? Here’s How to Find Out

Expert

June 24, 2025

What’s Blocking Your Shower Drain? Here’s How to Find Out

A slow-draining or completely blocked shower drain can quickly turn your refreshing daily ritual into a frustrating puddle-fest. The sight of water pooling around your ankles, refusing to go down, is not just an annoyance; it can be a sign of deeper issues within your plumbing system. Understanding what causes these blockages and how to address them is key to maintaining a healthy and functional bathroom.

At Drainage & Plumbing LTD, we understand the urgency and inconvenience of drainage problems. Proudly serving South East England within a 25-mile radius, including areas like Croydon, Sutton, Wallington, Coulsdon, Banstead, Bromley, Mitcham, Epsom, Reigate, Redhill, Leatherhead, Kingston upon Thames, Wimbledon, Richmond, Caterham, Guildford, Crawley, and Haywards Heath, we are your local experts dedicated to providing fast, reliable, and professional drainage and plumbing services. This article will help you identify what’s likely causing your shower drain woes and when it’s time to call in the professionals.

The Frustration of a Clogged Shower Drain

The first sign of a shower drain blockage is usually obvious: water drains slowly, or not at all. You might notice an unpleasant smell emanating from the drain, bubbling sounds as water struggles to pass, or even water backing up into the shower tray or tub. Beyond the immediate inconvenience, a persistently blocked drain can lead to:

Unsanitary conditions: Stagnant water can become a breeding ground for bacteria and mold.
Damage to flooring: Overflowing water can seep into bathroom flooring, causing rot, mold, and structural damage over time.
Pipe corrosion: Some blockages, especially those involving chemical reactions from DIY solutions, can accelerate pipe corrosion.
Pest attraction: Stagnant water and organic matter can attract unwanted pests.

Ignoring a slow drain can escalate a minor issue into a major plumbing emergency, leading to more extensive and costly repairs down the line. It’s always best to address these issues promptly.

Common Culprits Behind Shower Drain Blockages

Shower drains are particularly susceptible to blockages due to the nature of what goes down them daily. While many things can cause a clog, a few common culprits account for the majority of issues:

1. Hair Accumulation

This is, by far, the most common offender. Every time you wash your hair, loose strands detach and go down the drain. Over time, these strands intertwine, forming a dense mat. This hair mass then acts as a net, catching soap scum, dirt, and other debris, creating a formidable blockage that significantly slows or completely stops water flow. This is especially true for households with multiple occupants or individuals with long hair.

2. Soap Scum and Product Buildup

Shampoo, conditioner, body wash, and bar soap residues don’t always dissolve completely and wash away. Instead, they can accumulate on the inside walls of your pipes, creating a sticky film. This film, known as soap scum, traps hair and other particles, contributing significantly to blockages. Hard water, rich in minerals, can exacerbate this problem, as these minerals also contribute to the buildup.

3. Mineral Deposits from Hard Water

In areas with hard water, minerals like calcium and magnesium are present in high concentrations. As water evaporates, these minerals are left behind, forming stubborn scale deposits on pipe interiors. Over time, these deposits can narrow the pipe’s diameter, restricting water flow and making it easier for other debris to cause a complete blockage. This is a slower but often more insidious form of clog.

4. Foreign Objects

While less common than hair or soap scum, small objects can sometimes accidentally fall into the shower drain. Items like plastic caps, small toys, jewellery, or even parts of loofahs can get lodged in the pipes, creating an immediate obstruction. These blockages are often sudden and complete.

5. Structural Issues and Tree Roots

In older homes or properties with mature trees, external factors can affect internal plumbing. Tree roots, in particular, are drawn to sources of water and can infiltrate tiny cracks in underground pipes, growing and expanding until they create significant blockages. Misaligned pipes, pipe damage, or sagging pipes due to ground movement can also impede water flow and lead to chronic blockages. These issues usually manifest as recurring problems, even after superficial clearing attempts.

DIY Diagnosis: Pinpointing the Problem

Before you reach for heavy-duty chemical cleaners (which we generally advise against due to their potential to damage pipes and harm the environment), try to diagnose the blockage.

1. Visual Inspection

Start by removing the shower drain cover. Use a flashlight to peer down the drain as far as you can see. You might be able to spot a hairball or other obvious obstruction near the opening. Sometimes, a pair of pliers or tweezers can be used to pull out visible clumps of hair or debris.

2. Water Test

Run the shower water for a few minutes. Observe how quickly (or slowly) it drains.

If the water slows down immediately and pools, the blockage is likely very close to the drain opening.
If the water drains slowly at first but then starts to back up, the blockage is probably further down the pipe.
If multiple drains in your home (like a toilet and a shower) are backed up or slow, this suggests a main sewer line issue, which almost always requires professional attention.

3. The Plunger Test

A plunger can often dislodge minor blockages. Ensure you have enough water in the shower tray to cover the rubber cup of the plunger, creating a tight seal. Plunge vigorously for 15-20 seconds, then remove the plunger quickly to create suction. Repeat several times. If successful, you’ll hear a gurgling sound and see the water drain freely.

4. Simple Tools

For blockages slightly out of reach, a drain snake (also known as a plumbing snake or auger) can be invaluable. These flexible tools can be manually fed down the drain to hook onto or break up blockages. Gently push the snake down until you feel resistance, then twist and pull to retrieve the clog. Be careful not to force the snake, as this can damage pipes. A simple bent wire hanger can also work for very shallow clogs.

DIY Solutions for Minor Blockages

Once you’ve identified a minor blockage, here are some safe DIY methods to try:

1. The Boiling Water Flush

This is the simplest and often most effective method for minor clogs, especially those caused by grease or soap scum. Boil a kettle of water, then carefully pour it down the drain in two or three stages, waiting a few seconds between pours. The hot water can dissolve greasy clogs. Caution: Do not use this method if you have PVC pipes, as extreme heat can warp or damage them. Also, avoid if you’ve recently used chemical drain cleaners, as boiling water can react dangerously with them.

2. Baking Soda and Vinegar

This eco-friendly method creates a bubbling chemical reaction that can help break down soft blockages.

First, pour one cup of baking soda down the drain.
Follow immediately with one cup of white vinegar.
The mixture will fizz. Cover the drain with a stopper or cloth to keep the reaction focused within the pipe.
Let it sit for at least 30 minutes, or even overnight for stubborn clogs.
Flush the drain with hot water (or boiling water if safe for your pipes).

3. Manual Drain Snake / Auger

As mentioned in the diagnosis section, a manual drain snake can physically clear hair and other debris. These can be purchased cheaply at most hardware stores and are a great tool for any homeowner. Always wear gloves and have a bucket ready, as the retrieved material can be unpleasant.

When DIY Isn’t Enough: Recognizing the Need for Professional Help

While DIY methods can be effective for minor clogs, there are clear signs that indicate it’s time to call in the experts. Ignoring these signs can lead to more severe, costly damage.

Persistent Clogs: If you’ve tried multiple DIY methods and your shower drain is still slow or blocked, the clog is likely too deep, too large, or too stubborn for home remedies.
Multiple Blocked Drains: If your shower, sink, and toilet are all backing up, this usually points to a blockage in your main sewer line. This is a serious issue that requires professional intervention immediately.
Foul Odors: Persistent sewer smells from your drains can indicate a serious blockage, broken pipes, or issues with your venting system that prevent proper waste disposal.
Bubbling or Gurgling Sounds: Strange noises from your drains, especially when water is draining elsewhere, often mean trapped air due to a significant blockage.
Signs of Pipe Damage: If you notice damp spots on walls or ceilings, mould growth, or a sudden drop in water pressure, these could be indicators of a hidden leak or pipe damage caused by a severe blockage.

For any of these more serious issues, Drainage & Plumbing LTD is ready to assist. Our team uses advanced equipment to accurately diagnose and resolve even the toughest drainage problems.

Why Choose Drainage & Plumbing LTD for Your Drainage Needs

When it comes to drainage and plumbing services in South East England, we stand out for our reliability, expertise, and unwavering commitment to customer care. We are more than just a service provider; we are your dedicated partners in maintaining a healthy and functional home or business.

Our Core Strengths:

24/7 Emergency Service: Drainage problems don’t wait for business hours. Our 24/7 emergency service ensures we’re always available when you need us most, minimizing disruption with fast, effective solutions. Whether it’s the middle of the night or a public holiday, our team is on call to handle urgent drain problems quickly and efficiently.
Expert Team: Backed by a team of highly trained and certified technicians, we bring unparalleled expertise to every job. Our skilled drainage engineers are fully equipped and ready to tackle even the toughest blockages, always with a professional attitude and a friendly approach.
Latest Technology: We utilize the latest technology and tools to accurately diagnose and resolve issues. This includes advanced camera inspections to pinpoint exact blockage locations or pipe damage without invasive procedures.
Strict Industry Standards: We follow strict industry standards and best practices in all our work, ensuring not only an effective solution but also one that is safe and sustainable for your plumbing system.
Customer Satisfaction: Most importantly, customer satisfaction is at the heart of everything we do. We go above and beyond to deliver service you can trust, aiming to respond to your enquiries within 2 hours and resolve problems quickly and properly, usually on the spot. We have completed over 900+ projects with guaranteed satisfaction.

Our Vision: To be the most trusted local expert for residential and commercial drainage solutions in South East England.

Our Mission: To provide fast, reliable, and professional drainage and plumbing services across all South East England.

Advanced Drainage Solutions Offered by Drainage & Plumbing LTD

At Drainage & Plumbing LTD, we offer a comprehensive range of services designed to address every type of drainage and plumbing issue you might encounter. Our process is simple: fast, honest, and effective.

Our Process: How We Work

When you contact us, we’ll ask a few quick questions to understand the issue, then send one of our experienced engineers straight to you. Most problems are fixed on the spot, and we always explain the job clearly—no surprises, no hidden costs.

Book a Visit: Call or message us anytime — we’re ready when you are.
Fast Response: We aim to arrive within 60 minutes, wherever you are in our service area.
Problem Solved: Blocked? Leaking? Whatever it is, we’ll fix it quickly and properly.

Our Key Services Include:

Blocked and Broken Drains: We fix blocked or damaged drains quickly and efficiently, using the right tools to restore proper flow and prevent further issues. This includes everything from simple clogs to complex pipe repairs.
Build-up of Fat in Drains: Grease and fat deposits can cause serious blockages. We remove the build-up safely and help prevent it from coming back, often using high-pressure water jetting for thorough cleaning.
General Drainage Problems: From bad smells to slow-draining sinks, we diagnose and solve all types of drainage problems for homes and businesses. Our expertise covers a wide array of issues that may not be immediately obvious.
Drain Cleaning: Regular drain cleaning helps prevent blockages and costly repairs. We use high-pressure water jets (hydro-jetting) to keep your pipes clear and flowing, removing accumulated debris and restoring optimal performance.
Leak Detection: We locate hidden leaks with advanced equipment, helping you avoid water damage, mould growth, and high water bills. Early detection is crucial to mitigate potential structural damage.
Toilet Blockage: Whether it’s a minor clog or a major blockage, we’ll get your toilet working again—fast, clean, and hassle-free. While this article focuses on shower drains, our expertise extends to all aspects of your home’s plumbing.

Our team is always available for emergency drain issues, ensuring peace of mind for our customers across South East England.

Preventing Future Shower Drain Blockages

Prevention is always better (and cheaper) than cure. By adopting a few simple habits, you can significantly reduce the likelihood of future shower drain blockages:

Use a Drain Cover/Hair Catcher: The simplest and most effective preventative measure. Install a mesh drain cover or hair catcher over your shower drain to trap hair and large debris before it enters your pipes. Clean it regularly.
Regular Flushing with Hot Water: After each shower, allow hot water to run for an extra minute or two. This can help flush down any lingering soap residue and keep the pipes clearer.
Weekly Baking Soda and Hot Water Flush: Pour a cup of boiling water (if safe for your pipes), followed by half a cup of baking soda down the drain once a week. Let it sit for a few minutes, then flush with more hot water. This helps to break down minor accumulations.
Avoid Chemical Drain Cleaners: While they may seem like a quick fix, harsh chemical drain cleaners can corrode pipes over time, particularly older ones. They can also be dangerous if mixed with other cleaners or if they don’t clear the clog and a plumber needs to intervene.
Professional Drain Maintenance: Consider scheduling professional drain cleaning every few years, especially if you experience recurring issues. Professional hydro-jetting can thoroughly clear your pipes of stubborn buildup, preventing major blockages before they start.

Conclusion

A blocked shower drain is a common household problem, often caused by the accumulation of hair and soap scum. While many minor clogs can be resolved with simple DIY methods, understanding when to call in the professionals is crucial for preventing more significant and costly damage.

For reliable, fast, and professional drainage and plumbing services throughout South East England, look no further than Drainage & Plumbing LTD. Our dedicated team is available 24/7 to tackle any plumbing emergency, from blocked drains to leak detection. With our expertise, advanced tools, and commitment to customer satisfaction, we ensure your drainage issues are resolved efficiently and effectively.

Don’t let a blocked shower drain disrupt your life. For enquiries or emergency call-outs, reach out to us at 07771200075 or send us an email at support@drainage-plumbing.co.uk. We aim to respond within 2 hours and are always ready to assist you.