How Much Does It Cost to Install an Outside Tap?
£150 – £350
per tap
Outside tap installation costs between £150 and £350, covering supply and fitting for most UK homes. The price depends on how far the cold water supply pipe needs to run from the nearest mains connection, typically under the kitchen sink. Adding a double-check valve to prevent backflow contamination is required under water regulations.
Average cost
£150 – £350
per tap
Prices vary by region, property type and tradesperson. Always get at least two quotes.
What affects the price?
Distance from water supply - longer pipe runs from the cold feed increase materials and labour costs
Wall construction - drilling through solid stone or brick takes longer than standard cavity wall
Isolation valve - adding a dedicated internal isolation valve with a winterising drain-down point adds £20-£40
Tap quality - a standard brass bib tap costs £15-£40; frost-proof or quarter-turn taps cost more
Labour vs materials
Most plumbers complete an outside tap installation in two to three hours. Labour accounts for roughly 60-70% of the total cost at typical rates of £40-£70 per hour.
Questions to ask your tradesperson
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