The cost to replace disc brake pads can vary depending on several factors, including the make and model of your vehicle, the brand of brake pads you choose, and where you get the work done. On average, the cost for a basic brake pad replacement can range from $100 to $300 per axle. This estimate typically includes the cost of the brake pads and the labor involved in the installation. 

If you choose to use premium or high-performance brake pads, the cost may be higher. Additionally, if you go to a dealership or a specialized auto repair shop, the labor rates may be higher compared to independent repair shops. 

It's important to note that brake pad replacement is often done in pairs for the front or rear axle, as replacing only one side can lead to uneven braking performance. Always consult with your mechanic or service provider to get an accurate estimate based on your specific vehicle and requirements.