So you've replaced the stems on your on bathroom's hot and cold water fixtures and now no water is running from the faucet, even though there is water in the stems. It sounds as if the stems were not installed properly. Although this seems like a minor plumbing repair, I would suggest you call one of your local Middlesex plumbers/contractors to take a look at it.
If the stems were not installed properly, they may not open fully to allow water to pass. I once had a situation where the wrong washers were took thick for a particular stem. The stems were fully retracted and the washers were sealing against the seats. Only after I removed the washers and used flatter washers did the faucet work.
If you need help with this or other bathroom plumbing solutions, call us at 1-800-GET-ROTO or schedule service online. If you have any other Middlesex plumbing questions, you can ask me through the Ask a Plumber section of our website.