Repiping a house without removing drywall is possible through a method known as "in-place" or "relining" repiping. This technique involves installing new pipes within the existing ones, avoiding the need to tear down walls and remove drywall. Here's how it works:
Pipe Inspection: A professional plumber will conduct a thorough inspection of the existing pipes using video cameras or other diagnostic tools to assess their condition and identify any issues.
Pipe Lining: If the pipes are found to be deteriorating or damaged, a liner, typically made of epoxy resin, is inserted into the existing pipes. This liner adheres to the inner surface of the pipes, creating a new and durable pipe within the old one.
Curing and Testing: The epoxy resin is cured, which hardens and forms a strong, seamless lining. The pipes are then tested to ensure proper flow and functionality.
While in-place repiping offers a less invasive solution, it is not suitable for all situations. Factors such as the extent of damage, pipe material, and accessibility can affect the feasibility of this method. It's crucial to consult with a professional plumber who can assess your specific situation and recommend the most appropriate repiping solution for your home.