The answer to 'how much to fix thermostat' is that the cost to repair a thermostat can vary widely depending on several factors. Typically, the cost to fix a thermostat ranges from $100 to $300, but it could be more or less depending on the specific issue, the type of thermostat, and the complexity of the repair.
Some key factors that influence the cost include the type of thermostat (basic manual vs. smart/programmable), whether the thermostat needs to be replaced entirely or just repaired, the labor rates in your local area, and any additional parts or materials required. In some cases, the issue may be with the HVAC system itself rather than the thermostat, which could increase the overall repair cost.