The answer to 'shingle replacement leaking' is that a leaky roof after shingle replacement is often caused by improper installation or flashing issues. Common symptoms include water stains on the ceiling, mold growth, and dripping water. Solutions may involve re-installing the shingles correctly, replacing damaged flashing, or even a full roof replacement if the underlying issues are severe.
It's generally best to call a professional roofing contractor to diagnose and fix a leaky roof after shingle replacement. Attempting DIY repairs can be risky and lead to further damage if not done properly. Roofing work requires specialized skills and tools, as well as knowledge of local building codes. A professional roofer will be able to identify the root cause of the leak and make the necessary repairs to ensure a watertight roof.