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Cost guide: plumbers

We asked our Which? Trusted traders about the price of a range of common plumbing jobs.

Which? surveyed a range of recommended plumbers in 2012 to find out about the prices of common jobs. In early 2018, we contacted some of our Which? Trusted traders to update this information and bring you a snapshot of current prices.

If you need to call out a plumber, Which? Trusted Traders has endorsed plumbing businesses in your local area.

Common plumbing jobs and completion times

Many plumbing jobs are charged by the hour and the final cost will be a combination of time, plus any parts involved and VAT. 

One way to reduce costs is to take responsibility for waste disposal. Charges for waste disposal are higher than ever before, so on smaller jobs, it may be cheaper if customers take any waste to the recycling centre themselves – commercial businesses will be charged to do so. If traders need to use a hippo bag or a skip there will be an additional cost.

All the Which? Trusted traders we spoke to emphasised that they would normally price a job after visiting the property and seeing the systems involved, the ease of access, whether there are isolation valves installed or whether the system requires draining before starting work. All of these variables can affect the time involved and therefore the price charged. Note that this guide provides a rough outline only and does not include VAT.

Prices will also vary between regions – London is going to be more expensive than Cumbria, for example. Travel or transport costs, parking charges and accessibility of properties will also affect costs.

Job

Details

Typical price quoted

Typical time to complete job

Fit a new pedestal basin

Install a new basin in the same position, assuming that no new pipework is needed. Customer supplying own basin. Follow our tips on how to update a bathroom on a budget.

£110 - £180

2–4 hours

Replace kitchen mixer tap – no isolation valves

Remove old tap and fit a standard chrome mixer tap – no isolation valves, so drain down of entire system required. Customer to supply their own tap.

 

£150+ cost of tap

3-4 hours

Replace kitchen mixer tap – isolation valves present

Remove old tap and fit a standard chrome mixer tap - if isolation valves are present and it’s easy to access. Customer to supply their own tap.

£80 labour + cost of tap

1–2 hours

Job

Details

Typical price quoted

Typical time to complete job

Fit a new toilet

Install a new toilet in the same position, assuming that no new pipework is needed. Customer supplying own toilet.

£130-£200

2–4 hours

Replace faulty ball valve in toilet cistern

Replacing a flush valve on a toilet cistern including the fill valve – dual flush toilets would require two visits

£80- £120 depending on the style of the toilet and excluding any bespoke parts

1 – 2 hours

Fix leaky kitchen tap

To fix a standard mixer tap – a spindle tap with washers - that is dripping constantly. Providing isolation valves are present - washer change and reseat.

Modern lever cartridge taps aren’t really reparable. It is possible to replace the cartridge if you can get the exact replacement from the manufacturer. Swapping the cartridge. Sourcing the cartridge would be an additional cost

£60

 

£60

1 hour

Job

Details

Typical price quoted

Typical time to complete job

Install outside tap

Exterior wall behind kitchen sink – if isolation is possible. See our guide to installing an outside tap for more information.

£95 - £130

1–2 hours

Fix burst water pipe

Assuming pipes are easily accessible and call-out an emergency. Price is dependent on the ability to isolate the water and turn it off. Includes call-out fee, labour and materials. See more on how to stop a water leak.

£100

1–2 hours

Fix/unblock toilet

Includes call-out fee, labour and materials. If the blockage is local above ground pipework, it’s a plumber’s job. If it moves down into the drain - then you need a drainage specialist.

£60-£80

1–2 hours

 

Job

Details

Typical price quoted

Typical time to complete job

Power flush standard gas central heating system

Three-bed semi with 10 radiators. Include labour and all chemicals and equipment needed. This price assumes there’s no need to change any radiator valves prior to the power flush to avoid leaks. See more on in our guide to powerflushing.

£500 - £550

1 day

Replace a standard cold water tank

In an average three-bed semi-detached house. The price assumes replacing like with like. Includes cost of labour and materials.  It’s often necessary to convert older pipework – also more modern options, such as coffin tanks, are available although these will be more expensive.

£350 - £450

0.5–1 day

Replace a standard hot water tank

In an average three-bed semi-detached house. Assuming replacing like with like. Includes cost of labour and materials. A vented system.

£500 - £660

0.5–1 day

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