The answer to 'how much to fix pressure regulator' is that the cost to repair or replace a pressure regulator can vary widely depending on several factors. Generally, you can expect to pay anywhere from $150 to $500 or more to have a plumber fix or replace a pressure regulator, depending on the complexity of the repair and your location.
The main factors that influence the cost include the type of pressure regulator, the labor required, any necessary parts or materials, and the hourly rate of the plumbing professional. Older or more complex regulators may be more expensive to replace, while a simple repair could be on the lower end of the range. Additionally, plumbers in high-cost-of-living areas will typically charge more than those in lower-cost regions.