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myRadiator Bleeding Cost
At a Glance
- The average cost to bleed a radiator is around £100.
- Bleeding radiators usually takes 1 to 3 hours, depending on how many you have.
- A complete breakdown of the cost of bleeding radiators, by number of radiators and property size.
- How long the job takes, and how DIY compares with hiring a plumber.
- How to find and hire a local plumber using MyJobQuote.
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Table of Contents
How Much to Bleed Radiators?
The average cost to have your radiators bled by a local plumber is around £100, though the price will vary depending on the number of radiators in your home and your location.
Would you attempt to bleed a radiator yourself or hire a professional?
I would do it by myself (DIY)
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I would hire a professional
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I would investigate further before deciding
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Bleeding a radiator releases trapped air pockets that build up over time. These air pockets create cold spots that prevent the radiator from reaching its maximum heat output, forcing your central heating system to work harder and pushing up energy bills. Bleeding the radiators restores efficiency, reduces noise, and helps your home heat up more quickly.
Radiator Bleeding Prices
To put these radiator bleeding costs into context:
- Small Flat/1-to-2 Bed House — 5 to 7 radiators.
- 3-Bed Semi-Detached House — 8 to 10 radiators.
- 4-to-5 Bed Detached House — 12 to 15 radiators.
| Job Description | Labour Cost |
|---|---|
| Bleed 5 to 7 Radiators | £80–£100 |
| Bleed 8 to 10 Radiators | £80–£100 |
| Bleed 12 to 15 Radiators | £100–£150 |
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How Long Does It Take to Bleed a Radiator?
Let's take a look at how long radiator bleeding will take depending on the number of radiators you have:
| Job Description | Duration |
|---|---|
| Bleed 5 to 7 Radiators | 1 to 2 Hours |
| Bleed 8 to 10 Radiators | 1 to 2 Hours |
| Bleed 12 to 15 Radiators | 2 to 3 Hours |
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Emergency Radiator Bleeding Costs
If you need to bleed your radiator urgently, then the cost of an emergency plumber is usually around £200.
This price is based on the fact that most plumbers automatically charge a call-out fee of approximately £75, followed by £60 per hour to do the actual work.
However, if it's outside of regular hours, it's standard to be charged more.
In the event an emergency call-out becomes a whole day's work, you may be charged a day rate instead (normally around £400 per day).
If you live in a hard-to-reach area, or a major city such as London, where day-to-day costs are higher, there's a potential that charges may be even higher.
Factors That Impact the Cost to Bleed Radiators
When bleeding the radiators around your home yourself, the only real added expense is your time. If you'd like to give it a go, our guide on how to bleed a radiator walks you through the process step-by-step.
However, without any expert advice, you can never be certain that you've done it correctly. This is why some homeowners prefer to hire a plumber instead.
Here are the cost factors to bear in mind when hiring a local plumber:
- Number of Radiators — The bigger your home, the higher your radiator bleeding costs.
- Location — Expect plumber labour costs to be higher in London and the South East, where the cost of living is higher than the national average.
- Ease of Access — Hard-to-reach radiators? Expect your labour costs to be higher as a result.
- Unforeseen Issues — If your plumber uncovers issues with your home's heating, such as a faulty valve or a boiler overheating, you can expect your labour charges to rise.
- Emergency Call-Outs — Plumbing emergency? Your call-out costs could reach £400 in some cases.
So, even though the task of bleeding a radiator may appear to be a quick and easy job, it's always good to prepare for the fact that there may be additional cost factors involved.
Additional Radiator Bleeding Costs
Bleeding your radiators is a relatively inexpensive job, but your plumber may identify issues that lead to further work.
- New Radiators — If bleeding doesn't resolve the problem, the radiator itself may need replacing. Installing a new radiator costs around £200 per unit.
- Boiler Service — If your heating system hasn't been serviced recently, it's worth combining the two visits. The average boiler service cost in the UK is around £100.
- Power Flush — Where multiple radiators have cold spots or the system is slow to heat up, a power flush may be recommended. Costs start at around £400 for a 6-radiator system and rise with the size of the system. See our power flush cost guide for a full breakdown.
Checklist: How To Find and Hire a Plumber to Bleed Radiators in the UK
- Have you gathered at least 3 quotes? Use MyJobQuote to contact nearby plumbers and compare prices before committing to anyone.
- Have you asked for itemised quotes? A detailed breakdown makes it easier to compare like for like and spot anything unexpected.
- Have you checked their reviews? Look at past customer feedback via their MyJobQuote profile, paying attention to comments about punctuality and quality of work.
- Do they guarantee their work? A reputable plumber should be willing to stand behind the work they carry out.
- Is re-pressurising the boiler included? Check whether the quote covers topping up the boiler pressure after bleeding, which is sometimes needed once air has been released from the system.
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FAQs
How Often Should You Bleed Radiators?
Radiators should generally be bled every 1 to 2 years, though it's worth checking them at the start of each heating season. If you notice cold spots, gurgling noises, or rising energy bills, it may be a sign that bleeding is needed sooner.
Can I Bleed a Radiator Myself?
Yes, bleeding a radiator is a job that many homeowners are comfortable doing themselves. You'll need a radiator bleed key (or flat-head screwdriver on some valves) and a cloth to catch any drips. Turn off the heating and allow the radiators to cool before you start.
There are a few risks to be aware of: over-bleeding can drop your boiler pressure too low, and forcing a stuck bleed valve can cause it to break and release hot water. If you're unsure or the valve is corroded, it's safer to call a plumber.
What Does Bleeding a Radiator Do?
Bleeding a radiator releases trapped air that builds up inside the system over time. This air creates cold spots, reduces heat output, and forces the boiler to work harder than necessary. Bleeding restores the radiator's ability to circulate hot water efficiently, which can improve comfort and lower heating bills.
How Much Does a Plumber Charge to Bleed Radiators?
Most plumbers charge between £80 and £150 to bleed a full set of radiators, depending on the number of units and your location. Call-out fees typically range from £50 to £75, with hourly rates of around £60 on top. In London and the South East, expect to pay more than the national average.
How Much Does It Cost to Bleed a Radiator Without a Key?
If you bleed a radiator yourself, there may be little or no additional cost if you already have the tools you need. Some radiator valves can be opened without a radiator key, but the cost will depend on the type of valve and whether you need to buy a suitable tool. If you hire a plumber, the cost is more likely to be based on their labour and any applicable call-out fee rather than the cost of the key itself.
What Factors Influence the Cost of Bleeding a Radiator?
The main factors that affect the cost of bleeding a radiator include: the number of radiators, your location, ease of access, and whether the plumber finds any additional heating problems. Labour costs are generally higher in London and the South East, while emergency call-outs can also increase the price.
Is It Cheaper to Bleed Radiators Yourself or Hire a Professional?
Bleeding radiators yourself is typically cheaper because the main cost is buying any tools you do not already have. However, hiring a plumber can be worthwhile if you are unsure whether the radiators have been bled correctly or if you suspect there is an underlying heating problem. A professional can also identify issues that may require further work.
What Time of Year Should You Bleed Radiators?
The start of the heating season is a good time to check your radiators and have them bled if needed. You may need to have them bled at other times if they develop cold spots or other signs of trapped air. If you are paying a plumber, arranging the work before you need to start using your heating may also help you avoid an urgent call-out.
