If you're lucky enough to have a well on your property, you'll know that keeping it well maintained is essential for a clean, constant water supply. Over time, the pump, tank, and valves can wear out and need repairing or replacing.

This guide covers the average prices for well repairs and replacements, whether your well has stopped working altogether or there's an issue with just one part.

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Here's a full breakdown of typical well repair costs.

These are indicative costs: always get a written quote from a local specialist.

How much does well pump repair cost?

The average cost to repair a well pump is £650, with most jobs falling between £250 and £1,050.

Pump repairs typically cover issues such as worn bearings, failed capacitors, damaged wiring, or a seized motor. The cost depends on the fault and the depth of the pump: submersible pumps in deep wells need more labour to extract than shallow jet pumps.

If the pump cannot be repaired, replacement is often more cost-effective than repeat callouts.

Well pump replacement costs

A replacement well pump costs £280 to £1,320 for the unit, with an average supply cost of £800 . Labour to remove the old pump and install the new one averages £2,000.

Pump cost varies by type (submersible vs jet pump), flow rate, and depth rating. Submersible pumps for deep boreholes sit toward the top of the range.

If you're comparing against a standard household unit, check general water pump prices for context.

On Checkatrade, you'll only find trades who meet our high standards and pass up to 12 checks.

What affects the cost of well repairs?

What you pay for well repairs depends on a few things: how deep your well is and how hard the pump is to reach, whether you need a like-for-like part or a full pump and tank swap, and how much sediment has built up in your system over the years.

Sandy or silty water speeds up wear on pumps and valves, so a well with a sediment problem will usually cost more to keep running than one that's clean.

If the fault turns out to sit further along the pipe run rather than in the well itself, it's worth checking main water pipe replacement cost too.

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Other well repair costs

While many issues with your well are caused by a damaged or broken well pump, there are a variety of other well repair costs you may need to consider.

We've listed some of these additional costs below.

Water pressure tank replacement cost

A replacement pressure tank costs £60 to £2,500 to supply, averaging £1,200. The wide range reflects tank size and type. This price is in addition to well pump tank replacement labour costs, which range from £200 - £1,000.

The pressure tank keeps water pressure steady and reduces pump cycling. A failing tank often shows as rapid pump on/off switching or waterlogged tank symptoms.

Well casing repairs

Casing damage is priced per foot: expect to pay £10 - £100, averaging £50per foot. Repairing this kind of damage can be as simple as patching cracks or leaks with epoxy resin.

You may instead need a well casing repair sleeve fitted: a cylinder inserted into the casing at the point of the leak and sealed in place. Costs vary widely for this, so it's worth getting a specialist quote.

If the leak is larger, patching may not be enough. In that case, you might need to replace the casing or even dig a new well. The casing protects the well from surface water contamination, and cracks let bacteria and pollutants in, so this is a health issue that should be repaired promptly.

Well foot valve replacement cost

Removing the tank and valves and installing new components costs £200 - £1,000, averaging £500.

The foot valve sits at the bottom of the pump pipe and stops water draining back between pump cycles.

A failed foot valve causes the pump to lose prime and deliver poor water pressure, which can also waste energy as the pump works harder than it needs to.

Every Checkatrade job is backed by our £1,000 guarantee

Up to £1000. Eligibility criteria and T&C’s apply.

Essential checks before hiring a well repair professional

Before you rush out and buy a new well pump or other parts, check with a tradesperson what's actually causing your issue.

If it's down to old age, a replacement is the best choice. But if there's a lot of sand or sediment getting into your water pump, the wear and tear can damage new parts just as quickly, since well pumps aren't designed to cope with excess sediment.

Installing a new pump won't fix a sediment problem on its own.

While you're having work done on your well, it's worth asking an expert to take a closer look at the whole system:

• The electrical connections

• The pipework

• The condition of the well

• Whether the pump and tank are still sized right for your needs

This can help prevent future issues, and if the assessment points to a wider borehole problem, our borehole drilling cost guide is worth a read too.

If you're replacing an old well pump, a submersible pump is worth considering, as it's self-priming.

Water testing

After any repair, particularly casing work, have the water tested for bacteria, nitrates, and other contaminants. This matters most if the casing was breached.

Well age

Wells over 25 years old may have several components nearing the end of their life. A specialist can advise whether a targeted repair or a full system overhaul makes more sense.

Depth and access

Deep submersible systems are more complex to work on and need specialist lifting equipment, which affects labour costs significantly.

Regulations

Structural work to a well or borehole may need notification to the Environment Agency. Your contractor should know the relevant requirements, and it's worth checking our guide to water supply pipe repair costs if the fault sits in the wider supply system rather than the well itself.

Not sure what kind of groundworks you need? If you're looking to address a water leak, or fix low water pressure, we're here to help. You can also find emergency plumbers near me with Checkatrade.

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Benefits of hiring a checked well repair specialist

Well systems are easy to get wrong: a poorly fitted foot valve or the wrong-size pressure tank can mean you're back to square one within a year.

A checked plumber who's worked on private water supplies before will diagnose the actual fault first, rather than replacing parts that don't need replacing.

A functional private water supply gives you independence from the mains network. Keeping the system well maintained protects that investment and avoids emergency callout costs.

Regular inspection also keeps your water quality safe, since contamination from a failed casing or pump seal can go undetected without testing.

How to find a well repair tradesperson

Finding a well repair specialist is easy with Checkatrade. We check, verify and approve all of our members. All of the tradespeople in our directory meet our high quality standards.

Not all plumbers work on private water systems, so look for specialists or those who list boreholes or well pumps in their services when you search for a plumber near me.

Use our quick and easy request a quote feature and we'll get experienced local plumbers to contact you directly. To get accurate quotes, be as detailed as you can:

• Whether the issue is with the pump, tank, valve, or casing (or you're not sure)

• How old your well system is and when it was last serviced

• Whether your water has changed colour, taste, or pressure recently

• Access details for the well (depth, location, any recent digging nearby)

Properties on a private well often also run a septic tank, so if that's part of your setup it's worth checking septic tank installation costs at the same time.

If you need further guidance on well repair, we recommend the HomeOwners Alliance website. You'll find clear home improvement guides as well as tips on finding the right expert for your job.

Well repair cost checklist

Well repair cost checklist

Before contacting a tradesperson, here's what to check:

• Know whether the fault is the pump, tank, valve, or casing before you call anyone out: it changes the quote

• Get a written quote that separates parts and labour, especially for pump replacement

• Ask for a full system check while the tradesperson is already on site

• Check the real cause: a new pump won't fix a sediment problem

• Note your well's depth and any recent digging nearby: you'll be asked for this

• Check for public liability insurance and ask to see examples of similar well or borehole work

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