Cost of Unblocking a Toilet

Need to know how much it costs to unblock a toilet?

A blocked toilet is usually a small plumbing job, but if it’s overflowing or you only have one toilet in the house, it can quickly become urgent.

In most cases, the cost to unblock a toilet is around £30 to £60 for a simple blockage in the pan, but this can increase if rodding, jetting or an emergency call-out are needed.

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Read on for full toilet unblocking costs, emergency prices, timescales and what affects the price.

How Much To Unblock a Toilet?

These days, plumbers typically charge between £30 and £200 to unblock a toilet. Of course, this depends on what’s triggered the problem and how challenging it is to unclog.

Your local plumber can usually sort a simple pan blockage with a plunger or snake. Typically, you’ll pay around £30–£60 and it takes less than an hour. Are the pipes outside your toilet blocked? Then this is pricier at about £80–£100 for rodding. It’ll cost a little more if jetting is needed – roughly £150–£200.

Emergency call-outs or London jobs will usually cost more. Plumbers charge a call-out fee, not to mention a steeper first-hour rate. Does your toilet keep blocking? You might need a CCTV drain survey to find the root cause, which costs £90–£500 on average.

Need urgent help? See our emergency plumber cost guide.

How Much Does It Cost to Unblock a Toilet?

Below is a table highlighting the costs that you can expect when it comes to unclogging a toilet:

Prices are typical weekday rates. London and urgent call-outs tend to cost more.

Have a simple pan blockage? You'll probably pay £30 to £60 for roughly 30 minutes. Deeper or tougher blockages? They'll take longer and cost a little more.

Some more complicated or severe blockages will take longer to fix and will cost more. You could pay up to around £100 to £200 for more severe blockages depending on the problem and how long it takes for the plumber to fix it.

Emergency Toilet Unblocking Costs

Emergency toilet unblocking usually costs more than a standard weekday visit.

If you need a plumber in the evening, at the weekend, or at short notice, expect to pay a higher call-out fee and a higher first-hour rate. In many cases, an emergency blocked toilet call-out costs around £75 to £150, with more severe jobs costing more if specialist drain equipment is needed.

For urgent jobs, many plumbers can attend the same day, although emergency and out-of-hours visits will cost more.

A blocked toilet is more likely to count as an emergency if:

• It is overflowing
• You only have one toilet in the property
• Sewage is backing up into the bowl or nearby drains
• The blockage is affecting other fixtures such as sinks or baths

If the blockage is not urgent and the toilet is still draining slowly, booking a standard weekday appointment is usually the cheapest option.

Supply Only Unblock Toilet Costs

You can often try a plunger first for a minor blockage, but if the toilet is overflowing, keeps blocking, or the problem seems to be in the waste pipe or external drain, it’s best to call a plumber or drainage specialist.

If you want to try a small DIY unblock first, you may need the items below.

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What Else Adds to the Cost of Unblocking a Toilet?

These extras sometimes crop up with a blocked toilet job:

New Pipework

If the current pipework that connects to your toilet is insufficient or faulty, then it may need to be replaced. It could be that it is damaged or corroded and you can't see it. If this is the case, you can expect to pay around £30-£40 for new pipework to be installed.

If a pan connector or short section of pipe needs replacing, parts are typically £30–£40 plus labour.

Replacement Toilet

If your toilet is prone to blockages or quite old, then it may be a good idea to think about replacing your old toilet with a new one now. The average cost to have a new toilet installed is around £300-£600.

Drain Unblocking

If you start to notice foul odours coming from your drains or your sink, then you may have a blockage in your drains. A professional drain unblocking service will usually cost around £80-£150 depending on the issue and the method used to unblock it.

Labour Costs and Timescales

Your labour cost depends on which trades you need and how long they’re on site. Most plumbers charge a call-out or first hour fee of about £60–£80, then around £40–£60 per half hour after that. For a full day’s work, expect £150–£200.

Minor toilet blockages can usually be cleared in under an hour. More stubborn issues, especially if the pipework is affected, can take up to two hours and cost closer to £200.

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Factors That Impact the Cost of Unblocking a Toilet

There are several factors that may affect the cost of unblocking a toilet. Below is a list of the main things that could have an impact on the overall cost of the job:

Type of Blockage

Many things can cause a blockage within your toilet, and some are easier to fix than others. A mild blockage can take as little as 30 minutes to unblock, but a more severe blockage such as a blocked toilet drain or a blockage within the pipework could take a few hours. The longer the plumber needs to spend at your property, the more you should expect to pay for the work.

Ease of Access

The location of the blockage can affect the overall cost of the job. A blockage within the toilet bowl U-bend is much easier to access than a blockage that is further down the waste pipe. The more difficult the blockage is to get to, the longer it will take to unblock and will end up costing more.

Location of Property

Your location within the UK can have quite a substantial effect on how much you will pay to have your toilet unblocked. Plumbers in the London area can charge around £30-£100 more per day than plumbers based in other parts of the UK. So, if you are based in London, you can expect to pay more to get your toilet unblocked than someone who lives in another part of the UK.

What's Involved in Unblocking a Toilet?

There are a few ways a plumber will clear your blocked toilet. But which they choose will depend on what exactly is causing the blockage and where it’s stuck. Here’s how a plumber would normally sort it:

Unblocking With a Plunger

1. They’ll place the plunger over the outlet, making sure there’s plenty of water in the bowl, to cover the cup.
2. Using firm pushes down and harsher pulls back, your plumber will keep a tight seal to encourage the blockage to budge.
3. They’ll repeat until the water level drops. Then flush the toilet to test out the flow.

Unclogging With a Toilet Snake

1. First, your plumber feeds the snake into the U-bend so it meets the blockage.
2. They twist and push to break it up or hook it out.
3. Once the cable comes back clean, they’ll flush again to see if it’s cleared.

Unblocking With a Chemical Agent

Quite a few plumbers prefer using a high-quality toilet unblocker liquid. But this isn’t like the harsh DIY drain cleaners you find in shops (those can spoil seals and pipes).

1. They’ll pour the correct chemical in and leave for the right amount of time.
2. After a while, they’ll flush the toilet – hopefully, the blockage will have shifted.

Safety note: It’s best not to use strong chemical drain cleaners yourself. They can harm toilet fittings and they’re incredibly dangerous to touch. If a plunger or snake doesn’t fix things, call a specialist. They’ll have the tools and experience to carry out the task safely.

Can I Unblock a Toilet Myself?

Yes, for minor blockages. Firstly, try a plunger. Then, give a toilet snake a go. Is the blockage within the pipe itself? Or does it keep coming back? Book a plumber.

Blockages in the external pipework and drainage systems can be quite difficult to reach and will require specialist equipment to complete the unblocking.

Hiring Contractors to Unblock a Toilet Checklist

Before you hire a contractor to unblock a toilet, keep these points in mind:

• Price: Fixed rate or first-hour charge? Ask for a clear breakdown.
• Availability: Do they offer round-the-clock cover and confirm emergency fees in writing?
• Experience: Can they handle toilets and drains, not just general plumbing?
• Methods: Will they include rodding or jetting if needed?
• Clean-up: Do they remove waste and leave the area tidy?

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