Question: how much does it cost to have a new breaker installed?
Answer: Average Cost of Circuit Breaker Replacement or New Breaker Installation. The average cost to install a new circuit breaker is $187. The cost is as low as $130 for 15 amp to 30 amp breakers and as high as $280 for breakers up to 200 amps or when the circuit breaker is an older one with limited availability.