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When Do You Need Drain Jetting? 7 Warning Signs of a Blocked Drain

United Drains drainage engineer attending to water jet a blocked drain
United Drains 12/05/2025

Blocked drains can escalate quickly from a mild inconvenience to a major plumbing emergency. But how do you know when it’s time to jet your drains? If you’re wondering, “Do I need drain jetting?”, this guide will help you identify the early warning signs and understand how high-pressure drain jetting can fix the issue for good.
💡 Never heard of drain jetting before? Read more about what is drain jetting and how the process works.

7 Signs When to Book a Drain Jetting Service

1. Slow Draining Sinks, Showers, or Toilets
One of the first signs of a blockage is slow-draining water. This could mean grease, soap scum, or debris is narrowing the pipes. Drain jetting uses pressurised water to blast away the buildup and restore full flow instantly.

2. Bad Smells Coming from Drains
If your drains are starting to smell foul, it likely means waste is stuck in your system. High-pressure drain jetting eliminates the source of the odour and leaves your pipes clean and clear — without chemicals.

3. Gurgling Sounds in Pipes
Strange gurgling noises from your sink or toilet indicate trapped air caused by a partial blockage. This is a classic signal your system is struggling. Drain jetting is an effective way to clear the obstruction and release the air.

4. Water Backing Up or Overflowing
Overflowing drains or toilets usually mean a severe blockage. Emergency drain jetting is often the quickest and most effective solution to restore flow and prevent property damage.

5. Recurring Drain Problems
If your drains keep getting blocked despite previous fixes, it’s a sign you’re only treating the symptoms. Drain jetting completely clears the pipe walls — not just the blockage — giving you a longer-term solution.

6. Commercial Properties with High Usage
Businesses like restaurants, pubs, and offices experience more frequent drain build-up due to fats, oils, and debris. Routine drain jetting helps prevent downtime and expensive repairs, making it a smart maintenance investment.

7. Standing Water Around Outdoor Drains
Pooled water after rainfall often signals your external drains are blocked with leaves, dirt, or even roots. Outdoor drain jetting can flush these obstructions quickly, restoring flow and preventing flooding.

Do I Really Need Drain Jetting?
If you’ve noticed one or more of these signs, it’s time to act. Professional drain jetting is:
● ✅ Fast and non-invasive

● ✅ Suitable for most residential and commercial systems

● ✅ A preventative measure as much as a solution

Instead of using harsh chemicals or temporary fixes, drain jetting gets deep into the pipe system and leaves it clean, clear, and flowing properly.

💧 Why Choose United Drains for Drain Jetting?
At United Drains, we offer expert drain jetting services, available 24/7. Our fully trained engineers use advanced jetting equipment to resolve issues safely, efficiently, and affordably.

👉 Book Your Drain Jetting Today
Don’t wait until a blocked drain turns into an emergency. If you’re asking “Do I need drain jetting?” — the answer is probably yes. United Drains is here to help.
📞 Call now to speak to an expert on 02036376688
💬 Or book online today