Lead pipes and drinking water
The rising main at the stopcock looks like lead and no water sample was taken. What has not been tested?
The drinking water has not been tested. The rising main at the stopcock looks like lead, and that is a visual note about the pipe. No water sample was taken, so the survey has no result for lead in the water you would drink. Looking at the metal is not a laboratory test. The report has not said the water meets or misses any standard. The untested thing is the water, not a hidden length of pipe the visit never opened.
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 rising main brings mains water in from the stopcock. Lead pipe can be dull, soft-looking and thick at the joint, which is why the survey can say it looks like lead. That likeness is not an assay of the metal and not a sample from the kitchen tap. Water can pick up lead from a pipe, but this visit did not measure that. Internal plumbing further along may differ and was not sampled either. The gap is the missing sample.
Tell the solicitor the rising main looks like lead and that no sample was taken. A water test, if you want one, is a separate check. Ask a competent plumber about replacement rather than scraping or cutting the pipe yourself to see the colour of the metal. The survey has not specified that work and has not told the lender the water failed a test. There is no test result to send.
What should you ask your surveyor?
- Was the lead-like pipe only at the stopcock or also further inside?
- Is there any water-quality result already in the seller's papers?
- What sample would be needed before anyone quoted a result for the tap?
What are the typical next steps?
- Tell the solicitor no water sample was taken.
- Do not scrape or cut the pipe to try to identify the metal.
- Arrange a water test if you need a result for what comes out of 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
Does a plastic pipe under the sink cancel the look of the rising main?
No. Plastic further along shows that one visible length is plastic. It does not change the rising main at the stopcock, which still looks like lead, and it does not create a water test. The survey has not sampled either pipe or the water. Mixed materials are a reason to have a plumber trace the run, not a reason to ignore the stopcock.
Should the pipe be scraped so the bright metal shows?
No. Do not scrape, sand or cut the pipe. A bright streak would still not be a water sample, and the survey did not take one. Identification of the incoming main, if it must be firmer than a visual note, is a job for a competent plumber. The thing that remains untested is the drinking water.