Furnace Repair and Replacement: What are the Factors Affecting Replacement Costs? Home Improvement by Thomas Manuel - April 18, 2018April 18, 20180 Furnace repair costs can be quite high at times, usually depending on the nature of the issue. In most cases, you can avoid costly repairs by maintaining your furnace properly. However, there are situations when you seriously have to think about replacing your furnace. If you are also experiencing the