Professional furnace maintenance costs $80 to $300 in 2026, and most homeowners pay $100 to $200 for an annual tune-up. Boiler maintenance costs more, with routine service at $150 to $400 and full annual servicing at $500.
We gathered 2026 pricing from national home improvement cost studies. We cross-checked the headline figures against a second independent source, then added published Northern Colorado pricing and Larimer County’s permit fee schedule. The sections below move from the national averages to the factors that decide where a Northern Colorado invoice lands.
Key Takeaways
- A professional furnace tune-up costs $80–$300, and most homeowners pay $100–$200.
- Routine boiler service costs $150–$400, and a full annual servicing reaches $500.
- National maintenance contracts are $150–$300 per year, while one Northern Colorado company’s published plan tiers are $288–$588.
- A $300 tune-up equals 3% to 4% of the $7,000–$10,000 cost of a furnace that meets Colorado’s 2026 emissions standard.
Furnace Maintenance Cost by Service Type
Service depth sets the baseline before any other factor enters the estimate. A visual inspection with a filter check differs from a full cleaning of the burners and blower. Our analysis below groups 2026 pricing by visit scope.
Key Insights:
- The $100 average inspection sits in the lower fifth of the $50 to $300 spread, so the average visit stays near the low end.
- A furnace cleaning can cost more than five times its $70 low end, making the scope of the cleaning the biggest swing in this table.
Furnace Tune-Up Cost by Fuel Type
Fuel type changes the price because each furnace type has different components to inspect. The table below shows 2026 tune-up ranges by furnace type.
Key Insights:
- An oil furnace tune-up tops out at $200, which is $50 above the electric ceiling.
- Fuel type widens the gap as prices climb, since the three ranges start $30 apart and end $50 apart.
How 2026 Cost Studies Compare
Published figures differ because each publisher defines a tune-up differently. Cross-checking four sources shows where they agree and where they differ.
Key Insights:
- Three of the four publishers put the typical top end between $200 and $300.
- Thumbtack’s $323 average sits well above the other sources, and Thumbtack notes that its figures depend on the extent of repairs and the furnace’s age.
Boiler Maintenance Cost by Service Type
Boiler visits tend to cost more than furnace visits because technicians examine the heat exchanger and inspect the system for leaks. Cleaning and descaling add a separate line to some invoices. Our data indicates the following 2026 ranges.
Key Insights:
- Annual servicing tops out at $500, which is $200 above the $300 top of a furnace contract.
- Cleaning or descaling adds $150 to $350 to a visit, and a full system flush costs up to $600.
Boiler Maintenance Cost by Fuel Type
Fuel source also sets the price of a boiler visit. The table below shows 2026 service ranges by boiler type.
Key Insights:
- Gas boilers have the lowest starting price at $100, $50 below both oil and electric.
- Oil boilers have the highest ceiling at $500, so fuel type moves the high end by $100.
Labor Rates and Fees That Shape the Invoice
Labor explains why two homeowners with the same furnace receive different invoices. Timing has the most weight because an emergency call bills at rates well above the standard daytime rate.
Key Insights:
- Emergency rates reach $215 per hour, more than four times the $50 low end of standard furnace labor.
- Maintenance pricing applies per unit, so a home with two furnaces costs twice as much as a single-unit system.
Northern Colorado Pricing and Permit Fees
Local pricing falls inside or just below the national ranges. A Fort Collins cost guide built from recent contractor quotes lists $100 to $300 per HVAC maintenance visit, and one Northern Colorado company advertises a $59 furnace tune-up. Larimer County prices plumbing and mechanical permits by project value, and Colorado’s HB23-1161 sets emissions limits on new fan-type central furnaces sold or leased on or after January 1, 2026.
Key Insights:
- The $288 entry tier falls inside the $150 to $300 national contract range, while the $588 top tier costs about twice as much and adds longer repair warranties and yearly credits.
- A tune-up at the $300 top end equals 3% to 4% of a $7,000 to $10,000 replacement, and Larimer County’s fee schedule effective July 1, 2026 sets the plumbing and mechanical permit fee for a project that size at $194 to $271.
Further Reading
- Furnace Maintenance 101
- Average Furnace Installation Costs in Northern Colorado: 2026 Data
- Average AC Repair & Maintenance Costs in Northern Colorado: 2026 Data
Get the Full Report
Homeowners building a maintenance budget often want these figures in one place. Request a PDF copy of this report, and we will send the complete 2026 cost breakdown to your inbox.
Sources
- How Much Does It Cost to Service or Repair a Boiler? (Angi, updated September 29, 2026)
- Furnace Inspection Cost in 2026 (Angi, updated July 9, 2026)
- How Much Does HVAC Maintenance Cost? [2026 Data] (Angi, updated July 9, 2026)
- 2026 Furnace Tune-Up Cost (Thumbtack, updated July 1, 2026)
- Furnace Tune-Up Guide 2026 (Bryant)
- How Much Does a Furnace Tune-Up Cost? 2026 Price Guide (Summers Plumbing Heating & Cooling, August 2026)
- How much does it cost to service and repair a boiler? (HomeGuide, July 2025)
- How Much Does a Boiler Tune-Up Cost? (HomeServe, December 2024)
- HVAC Cost in Fort Collins, Colorado 2026 (Biddaro)
- Furnaces Tuneup (Cool Ducts HVAC, October 2026)
- Is an HVAC Maintenance Plan Worth It? (American Air, updated October 2, 2026)
- 2026 Building Permit Fee Schedule (Larimer County, effective July 1, 2026)
- HB23-1161 Environmental Standards For Appliances (Colorado General Assembly)
- Average Furnace Installation Costs in Northern Colorado: 2026 Data (Lion Home Service)
