Toilet Advice

Why Does My Toilet Keep Blocking, and How Do You Fix It?

Discover the real reasons behind recurring toilet blockages and how to fix them for good.

Keith, Owner | August 2026

A toilet that keeps blocking is usually caused by flushing items that do not break down, such as wet wipes, sanitary products or excessive amounts of thick toilet paper. If the blockage returns even when nothing unusual is being flushed, it often points to a deeper problem in your main drainage system that needs professional inspection.

A+ Drainage Services provides fast, hygienic toilet unblocking across Essex, London and the M25 corridor, with zero callout fees and no mess left behind. Here is why your toilet keeps blocking and how to fix it properly.

Why Does My Toilet Keep Blocking?

Recurring toilet blockages usually have one of two causes. The first is flushing inappropriate items that do not dissolve like toilet paper, which snag and build up in the u-bend. The second is a deeper obstruction in the main soil pipe or drainage system, which causes the toilet to block again and again no matter how carefully you use it. Identifying which of the two you are dealing with is the key to fixing it for good.

What Should You Not Flush Down the Toilet?

Only the three Ps should ever go down a toilet: pee, poo and paper. The most common culprits behind recurring blockages are items that seem flushable but are not:

Wet Wipes

Including those labelled "flushable", which do not break down in water.

Sanitary Products

Pads and tampons expand and lodge in the pipe.

Cotton Wool, Buds & Nappies

These bind together and trap other debris.

Excessive Thick Toilet Paper

Large wads can overwhelm the u-bend, especially in older or low-flush systems.

Could a Recurring Blockage Mean a Bigger Problem?

Yes. If your toilet keeps blocking despite careful use, the issue may lie deeper in your main drainage rather than in the toilet itself. A build-up of fat, a collapsed section of pipe or root ingress can all restrict the main soil pipe and cause repeat blockages across the property. In these cases a CCTV drain survey pinpoints the exact cause without any digging, so the problem can be resolved at the source.

How Do You Fix a Blocked Toilet?

The safest way to fix a persistently blocked toilet is to have the obstruction physically removed by a professional. At A+ Drainage Services, our process is quick, hygienic and thorough:

1

Rapid diagnosis

We find the root cause, whether it is an isolated blockage in the toilet trap or a larger obstruction in the main soil pipe.

2

Safe and hygienic clearance

Using professional manual tools and advanced equipment, we clear the blockage without damaging your porcelain and without harsh chemicals that can harm your pipes and the environment.

3

Clean and disinfected finish

Once the toilet is flushing perfectly again, we clean the work area thoroughly and leave your bathroom tidy and sanitised.

Can I Unblock a Toilet Myself With Chemicals?

We strongly advise against using harsh chemical drain cleaners on a blocked toilet. They can damage your plumbing, emit dangerous fumes and often fail to clear a solid physical blockage. It is much safer and more effective to have a professional physically remove the obstruction, especially for a blockage that keeps coming back.

Why Choose A+ Drainage Services for a Blocked Toilet?

We understand how stressful and unhygienic a blocked toilet is, so we treat it as a high-priority job and often reach properties across our service area within the hour. Keith and the team arrive fully equipped, quote honestly before starting and always leave your bathroom cleaner than we found it, all with zero callout fees and completely transparent pricing.

Frequently Asked Questions

Common questions about recurring toilet blockages.

Need Your Toilet Unblocked Right Now? Call A+ Drainage Services

Do not put up with a toilet that keeps blocking. Contact Keith and the team for a fast, hygienic and honest fix with zero callout fees.