This Is How Much A Boiler Pump Replacement Costs

Any boiler engineer will tell you that one of the most common repairs they carry out is related to boiler pumps. Sometimes, these pumps can be easily fixed, but more often than not, you’ll need to replace one — and that’s why we’ve created this quick guide to boiler pump replacement costs.

But before you start worrying that installing a new pump may be too costly, let us put your mind at ease — it’s still much cheaper than getting a brand new boiler.

Before we carry on, you can get someone to fix your boiler pump here. And if you do prefer a new boiler, you can head over to HEATABLE. Being a new kid on the block in the online boiler installation industry, they offer Worcester Bosch boiler prices that are as good as you’ll find anywhere in the UK.

Worcester Bosch Greenstar 4000

How Does a Boiler Pump Work & Do You Need A New One?

Water enters your boiler via the return, and leaves via the flow. And, as water comes in via the return, it is heated. A central heating pump circulates the water to radiators, taps, towel rails and showers.

Eventually, it comes back via the return (hot), and the cycle continues.

Do You Need A New Boiler Pump?

It depends on the type of fault. Some, like airlocks, can be easily cleared out. More serious problems, on the other hand, may entail repairs.

But since heating pumps are not particularly expensive, it’s rarely worthwhile to fix an old pump that’s likely to break down in the near future anyway.

Troubleshooting Guide for Boiler Pumps

We’ve covered these faults in greater detail in our guide central heating pump problems here. That said, here’s a quick troubleshooting checklist you can use to determine if the pump needs to be replaced or repaired.

#1 – The boiler pump is not circulating water

A lack of water circulation usually points to a seized propeller in the pump. If this is the case, you may also hear a vibrating noise coming from the pump. Alternatively, there may be an issue with the motor; especially if the pump is hot to the touch.

If your pump is in good working order otherwise, a gentle tap should free the seized components. However, if the problem keeps recurring, your pump has likely reached the end of its useful service life, and you’ll need to get a replacement.

#2 – There’s a noise coming from the boiler pump

If you hear any unusual noises coming from the boiler pump and your boiler is locking out, chances are there’s an airlock in the device.

Luckily, the fix is simple — if your pump has a bleed screw, all you have to do is turn it to release the trapped air. When the hissing stops, and a small amount of water leaks out, the airlock should be gone and you can close the bleed screw.

#3 – There’s a leak from the boiler pump

Boiler pumps can leak for various reasons, such as blown seals, corrosion, or the pump coming loose.

If you find that the pump is not securely fastened, tightening it could solve the problem. Otherwise, you’ll have to check whether the seals are intact; if they’re not, you can either replace the seals, or replace the pump itself — especially if it’s old and experiencing faults frequently.

Finally, check the pump for signs of corrosion. If you see that this is the cause of the leak, you’ll have to install a new pump.

#4 – No power to the boiler pump

If all your electrical appliances are working but the pump isn’t, the likely cause of the problem is either the Printed Circuit Board (PCB) or faulty wiring. Either way, get a Gas Safe engineer to come and inspect your boiler pump.

#5 – The boiler pump won’t turn off

In the rare event that your boiler pump won’t stop working, you may be dealing with 1 of the these 3 issues:

  • Faulty PCB
  • Malfunctioning pump overrun stat
  • Mid-position valve that’s sticking

In either of these scenarios, an engineer can determine the best course of action and help you decide whether to repair or replace the pump.

Typical Boiler Pump Replacement Costs

There’s going to be a few factors that determine the price of a replacement boiler pump.

  • Ease of installation (access to boiler, and pump)
  • Type of pump purchased (i.e. lower quality pumps are cheaper)

How much do boiler pumps cost?

Like anything, different manufacturers and models will cost different amounts. Expect to pay £95-150 for a high-quality pump.

What is the cost of replacing boiler pumps including installation?

To cut a long story short, expect to pay £185-300 for a boiler pump replacement. This includes all materials and labour. So, labour is in the £100-150 range.

Which heating pump should you buy?

Your engineer will be able to advise on the most suitable heating pump replacement for your property. Always get advice from a heating engineer before making a purchase.

Top Central Heating & Boiler Pumps

Typically, older boilers will have Wilo boiler pumps. Wilo are not known to be a reliable brand. For this reason, many boiler manufacturers have switched to other brands.

So, if there’s an element of choice involved, we’d always go for a Grundfos or DAB pump (we wrote a review of the Grundfos UPS2 here). Other top pumps to consider include:

Consider This When You Get Your Boiler Pump Replaced

When pricing installation for boiler pumps, engineers have to factor in their travel time as part of their quotes. They’ll already be at your property and will have spent time removing the boiler casing.

While they are there, it makes sense to ask them to service the boiler (you can learn about how much a boiler service should cost here), or at least give a visual inspection to the most important and expensive parts.

What’s Next?

Sick of your tired and unreliable boiler? You can get a fixed price on screen within 90 seconds using this clickable form.

And, we’re happy to answer any questions in the comments below. Whether that’s choosing the best pump, or deciding whether the quote you’ve received is reasonable.




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