The answer to 'how much does pressure regulator cost' is that the cost of a pressure regulator can vary significantly depending on several factors. Generally, pressure regulators for residential plumbing systems can range from $50 to $300 or more, depending on the size, type, and quality of the unit.
The main factors that influence the cost of a pressure regulator include the size (1/2-inch, 3/4-inch, etc.), the material (brass, stainless steel, etc.), the brand and quality, and whether it's a basic model or one with additional features like a built-in gauge. Installation costs can also add $100 to $300 or more, depending on the complexity of the job. It's essential to get local quotes from licensed plumbers to get an accurate estimate for your specific needs and location.