TL;DR — Drain Unblocking Cost At A Glance
Most drain unblocking costs £80–£250 outside London and £100–£350 in London, with a simple blocked sink or toilet from as little as £30.
- Stubborn or outdoor drains needing jetting or rodding cost more; a CCTV drain survey adds £90–£200, and a serious blockage that requires excavation starts from around £600.
- The method sets the price: plunging or snaking is cheapest, rodding is mid-range, and high-pressure jetting costs more but clears the toughest blockages.
- A CCTV drain survey may be needed to find the cause of a recurring blockage, adding to the cost.
- Cost drivers are the type and location of the blockage, the method needed, access, emergency timing and your area.
- Simple fixture blockages can often be cleared yourself; shared, outdoor or recurring drains are a job for a professional.
Get a fixed price to unblock a drain — check prices and book a plumber online, including same-day help when you need it.
How Much Does Drain Unblocking Cost In 2026?
Unblocking a drain in the UK typically costs £80–£250, rising to £100–£350 in London and the South East. A simple blocked sink, shower, bath or toilet can be cleared from as little as £30, while a stubborn blockage deep in the drainage may need a CCTV survey (£90–£200) to locate. If excavation is required, costs start from around £600. The average straightforward drain unblocking job costs around £90–£150.
The method needed is the biggest factor affecting the price. A plunger or drain snake can clear most simple fixture blockages quickly. Outdoor and heavier blockages may need rodding or high-pressure jetting. If a blockage keeps returning, a CCTV drain survey can identify the underlying cause, such as a collapsed pipe, tree roots or a build-up of fat. This adds to the cost but can help prevent repeat call-outs. Emergency and weekend appointments also typically cost more than standard booked visits.
Here is what you can expect to pay for drain unblocking, by task and method:
As a member of the Fantastic Club, you can get £30 OFF for 10 different services within 1 year.
| Task / method | Rest of UK | London & South East |
|---|---|---|
| Unblocking a sink | £30 – £75 | £50 – £90 |
| Unblocking a shower or bath | £30 – £75 | £50 – £90 |
| Unclogging a toilet | £30 – £75 | £50 – £90 |
| Drain rodding | £60 – £90 | £75 – £125 |
| Drain jetting | £70 – £125 | £100 – £150 |
| Typical drain unblock (all-in) | £80 – £250 | £100 – £350 |
Figures include VAT and reflect 2026 market rates. Recurring blockages needing a CCTV survey, or blockages requiring excavation, cost more — get a fixed quote here.
Drain Unblocking Cost Breakdown: The Methods
Different blockages need different methods, and the method largely sets the price. Understanding them helps you judge whether a quote is fair.
| Method | Best for | How it works |
|---|---|---|
| Plunger / drain snake (auger) | Sinks, showers, baths, toilets; hair and solid debris | A flexible tool reaches into the pipe to pull out or push through the clog |
| Drain rodding | Outdoor drains and heavy blockages | Rigid rods are pushed through the pipe to break up and clear solid obstructions |
| High-pressure jetting | Severe, deep or outdoor blockages, and grease | Water at high pressure scours the inside of the pipe and flushes the blockage away |
| CCTV drain survey | Recurring or unexplained blockages | A camera is fed into the drain to find the cause, such as roots, fat or a collapsed pipe |
Snaking and plunging sit at the cheap end because they are quick and need little kit. Jetting costs more because it uses specialist equipment and clears blockages that rods cannot. A CCTV survey is diagnostic rather than a fix, but it is money well spent when a drain blocks again and again — it turns guesswork into a targeted repair.
What Affects The Cost Of Unblocking A Drain?
1. The Type And Location Of The Blockage
An internal fixture blockage — a sink or toilet — is the cheapest to clear. Blockages further into the system, in outdoor drains or shared drainage, need more work and heavier equipment.
2. The Method Needed
Plunging and snaking are cheapest, rodding is mid-range, and jetting costs more. The more stubborn the blockage, the more likely the plumber will need the pricier method.
3. Whether A Survey Is Needed
A one-off blockage is usually cleared on the spot. A recurring blockage often needs a CCTV survey to find the cause, which adds to the total but can prevent repeat visits.
4. Access
An accessible internal drain is quick. A blockage that needs a manhole lifting, or that turns out to require excavation to reach, adds significant time and cost.
5. Emergency And Out-Of-Hours Timing
A booked daytime visit is cheapest. Same-day, evening, weekend and bank-holiday call-outs carry a premium.
6. Your Location
London and the South East run roughly 15–30% higher than the North of England, Wales and Scotland, reflecting higher labour and travel costs.
What's Included — And What's Not
Quotes vary in what they cover, so it pays to check line by line before booking. Here's how a drain unblocking job usually splits:
| Typically included in drain unblocking | Usually charged separately |
|---|---|
| Diagnosing the blockage | A CCTV drain survey for recurring blockages |
| Clearing it using an appropriate method (plunging, snaking, rodding or jetting) | Excavation to reach or repair a damaged drain |
| Testing that the drain runs freely | Repairs to collapsed or root-damaged pipes |
| Basic tidy-up of the work area | Out-of-hours or emergency premiums |
| Descaling or lining of the drain |
Ask how the job is priced before it starts — some providers charge a fixed rate for standard unblocking, others by the hour.
Can You Unblock A Drain Yourself?
For a simple, accessible blockage, DIY is realistic and saves the call-out. A plunger clears many sink and toilet blockages; a hand-turned drain snake reaches hair and debris in showers and basins; and a mix of hot water, bicarbonate of soda and vinegar can shift a mild grease build-up. Removing and cleaning a sink trap is another straightforward fix for a slow kitchen or basin drain.
Call a professional when the blockage is stubborn, recurring, outdoors or in shared drainage, when several fixtures back up at once (a sign the blockage is deeper in the system), or when there is a foul smell or sewage backing up. Harsh chemical drain cleaners are best avoided — they can damage pipes and rarely fix the underlying cause. A professional has the rods, jetting equipment and, where needed, a camera to clear the blockage properly and find out why it happened.
How To Save Money On Drain Unblocking
Try a plunger or drain snake first on a simple, accessible fixture blockage before booking.
- Book in normal hours where the blockage is not urgent, to avoid emergency premiums.
- Act early — clear a slow drain before it becomes a full blockage that needs jetting.
- Ask for a CCTV survey if a drain blocks repeatedly, so the cause is fixed once rather than cleared again and again.
- Bundle nearby jobs — a leaking pipe repair or a dripping tap repair — into the same visit.
- Prevent blockages: use sink strainers, avoid pouring fat down the drain, and flush only the right things.
How To Hire A Good Plumber Or Drainage Specialist
Ask for recommendations, check reviews, and get a clear price or a description of how the job is charged — fixed rate for standard unblocking, plus any extra for surveys or excavation. Confirm the tradesperson is insured, and for a recurring problem, ask whether they carry jetting and CCTV equipment so the cause can be identified.
With Fantastic Services, you get vetted, insured plumbers, transparent pricing and online booking — including same-day help when a drain cannot wait.
Frequently Asked Questions
How Much Does It Cost To Unblock A Drain?
In 2026, drain unblocking typically costs £80–£250 across the UK and £100–£350 in London. A simple blocked sink or toilet can be cleared from £30, while a serious blockage needing excavation starts from around £600.
What Are The Different Methods For Unblocking A Drain?
The main methods are plunging or snaking (for simple fixture blockages), rodding (for outdoor and heavy blockages), and high-pressure jetting (for severe or deep blockages and grease). A CCTV survey is used to find the cause of recurring blockages.
What Other Factors Affect The Cost?
The type and location of the blockage, the method needed, whether a survey or excavation is required, access, emergency timing, and your area.
How Long Does It Take To Unblock A Drain?
A simple fixture blockage is often cleared in under an hour. Rodding or jetting a stubborn or outdoor blockage takes longer, and jobs needing a survey or excavation can take several hours or more than one visit.
What Are The Signs Of A Blocked Drain?
Watch for slow-draining sinks, baths or toilets, gurgling sounds, foul smells, water backing up when you use another fixture, and raised water levels in an outside drain or manhole.
How Do Drains Get Blocked, And How Can You Prevent It?
Common causes are fat and grease, hair, food waste, wet wipes, and tree roots. Prevent blockages by using sink strainers, never pouring fat down the drain, flushing only toilet paper, and clearing slow drains early.
Can You Unblock A Drain Yourself?
A simple, accessible blockage can often be cleared with a plunger or drain snake. Call a professional for stubborn, recurring, outdoor or shared-drainage blockages, or when several fixtures back up at once.
Where Can You Find A Plumber To Unblock A Drain?
Use a vetted, insured provider such as Fantastic Services, where you can book online, see pricing up front and arrange same-day help if needed.
Sources (market research, 2026): Checkatrade, MyBuilder, MyJobQuote, Housekeep and regional drainage providers. All prices are indicative market ranges and should be verified against Fantastic Services' pricing before booking.
Fantastic Services Drain Unblocking Prices [2026]
As a member of the Fantastic club, you can get £30 OFF for 10 different services within 1 year.
| Monday – Friday | Weekend | Weekend | ||
|---|---|---|---|---|
| Appointments | 08:00 - 18:00 | Before/After Working Hours | 08:00 - 17:30 | Before/After Working Hours |
| First half hour* | £61 | £87 | £77 | £87 |
| Subsequent half hours | £49 | £75 | £65 | £75 |
| Half day (4 hours) | --- | --- | --- | --- |
| Full day (8 hours) | £569 | --- | --- | --- |
Join the Fantastic Club and get:
- £300 in credits
- Preferential member rates
- Domestic cleaning from £18/h
- Plant a tree
- Priority booking & case handling
*Minimum time per appointment is 1 hour. After the first hour, we will charge on a half-hour basis.
**In cases where we need to purchase all the materials necessary for the completion of the job, shopping time and material costs will be added separately on the top of your bill. The standard hourly rate for shopping time is £52.
T&Cs and Minimum Charges apply. When we calculate the price, we also take into consideration the area's dimensions and the time of the appointment. All prices and deals are valid for areas within M25. Deals cannot be combined with any other deals and promotions. Prices are subject to availability. Congestion charges are excluded (when applicable).