Lead pipes and drinking water
The visible pipes are new copper. Why can the survey still not promise the drinking water is free of lead from fittings it did not sample?
Because new copper is only the pipe the eye could see, and the survey did not sample the fittings or the water. Lead can still come from solder on joints and from brass fittings, even where the visible runs look modern. The Drinking Water Inspectorate explains that lead in drinking water is not limited to an old lead pipe. This visit did not test the water and did not cut out a joint. It cannot promise the supply is free of lead.
Last reviewed 24 October 2026. Written for buyers in England and Wales unless this answer says otherwise. No named surveyor has signed this page. It is general guidance, not a report on your house, and not legal advice.
What is the fuller explanation?
A replaced run of copper often stops at the first fitting, the stopcock or a joint that was left in place. Solder used on drinking-water joints, and some older brass, can add lead without a grey lead pipe anywhere in sight. The survey can describe the colour and the route of what was visible. It cannot see inside a joint, and it was not instructed to take a sample. A bright pipe is a material note, not a water result.
If you need to know about lead at the tap, that is a water test arranged separately, not a sentence the survey can be pushed into. Tell your solicitor what was and was not seen. Do not scrape, sand or cut fittings yourself to look for solder. The home survey has not sampled them, and a visual pass on copper must not be written up as a promise about the drinking water.
What should you ask your surveyor?
- Which pipes were actually visible copper, and which joints were hidden?
- Did you see any remaining lead pipe, or only the new copper?
- Have you recorded that no water sample was taken?
What are the typical next steps?
- Do not treat the new copper as a lead-free water result.
- Tell the solicitor the fittings and the water were not sampled.
- Arrange a separate water test if you need to know about lead at the tap.
Costs vary with the building and with who you instruct. Where this page does not cite a published figure, ask the surveyor, a relevant specialist, or your solicitor for a written quote. Do not treat a forum average as the price.
Also asked about this
If the kitchen run is copper, is the rising main cleared as well?
No. Copper in the kitchen only describes that visible run. The rising main, the stopcock and joints in a floor may be different and were not sampled. The survey cannot promise those unseen fittings are free of lead. Each hidden run still needs its own look before lead is dismissed.
Can the surveyor taste or look at the water and clear it?
No. Looking at water, or tasting it, does not measure lead. The survey took no sample. A clear glass on the day is not a result from the fittings that were not tested. Lead in water is measured from a sample, not from a clear glass.