PRICE GUIDE · PLUMBING & HEATING · 2026–2027
Sump Pump Installation cost in the UK
£250–£1,100 per install. Typically £550.
Sump pump installation in a UK home typically costs £250–£1,100, with about £550 typical. Fitting a pump into an existing sump is cheaper; cutting a new sump pit through a solid cellar floor, adding a battery backup or a long discharge pipe pushes the price up.
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HOW MUCH IT COSTS
How much does sump pump installation cost in the UK?
| Low end | £250 | a replacement pump in an existing pit |
|---|---|---|
| Typical | £550 | what most people pay |
| High end | £1,100 | a new pit through a solid floor with backup |
Locufy guide prices for 2026–2027. Updated 2026. A national range, not a quote — enter your town above for real prices from the plumbers and heating firms near you.
What moves the price
- Existing pit or new — a pump dropped into an existing sump costs far less than cutting a new pit
- Floor type — breaking through a solid concrete cellar floor takes time and tools
- Pump specification — twin pumps, high-flow models and alarms cost more
- Battery backup — a backup keeps the sump pump running in a power cut
- Discharge route — a long pipe run to a drain or soakaway adds labour
- Electrics — a dedicated fused supply for the pump may need an electrician
Plumbing and heating prices in the UK are up 6% over five years (ONS Consumer Price Inflation, Services for maintenance and repair, to 2026 August). Five years ago a typical sump pump installation would have cost about £520 — an estimate from today's guide price and that index, not a recorded price. Source: ONS MM23 D7DO →
WHAT YOU GET
What a sump pump installation booking includes
Takes: Half a day for a replacement pump, one to two days for a new sump pit. Not included: Full cellar tanking, cavity drain membranes and electrical circuits are usually priced separately — see the related guides below.
WHAT PEOPLE BOOK
Common sump pump jobs
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Sump Pump Installation near you, with prices shown
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How to pay less
- Replace the sump pump in the existing pit rather than cutting a new one where possible
- Have the sump pump serviced each year so it does not fail when needed most
- Combine the pump with any planned cellar waterproofing work
Before you book
- Ask where the sump pump will discharge, as it should go to a suitable drain, not a neighbour's land
- Electrical supplies for pumps should be fitted by a Part P registered electrician
- Ask whether the quote includes an alarm or battery backup
- Check your home insurance for cover against basement flooding
Sump Pump Installation cost: questions people ask
£250–£1,100 per install, about £550 typical. Swapping a pump in an existing pit costs least; a new pit through a solid floor costs the most.
About half a day for a replacement and one to two days when a new sump pit is cut.
If the cellar floods in storms, when power cuts are likely, a backup pump or battery keeps water out.
Usually once a year, with the float switch and outlet checked and the pit cleaned.
Full tanking, membranes and electrical circuits are generally separate. Ask whether an alarm and annual service are included.
They are Locufy guide prices for the UK — a national range, not a quote. Few UK publishers state sump pump prices in a readable form, so treat this as a rough guide.
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