HVAC Filter Replacement Schedule Calculator

Regular HVAC filter replacement improves indoor air and extends equipment life.

Units

Filters / unit

Filter cost each

Replacements / yr

Labor / visit / unit

Annual program cost

$23,400

Per unit annual

$156

Filter material only

$8,400

How the math works

Material = units × filters × cost × replacements. Total = material + labor × units × replacements.

150 × 2 × $7 × 4 = $8,400 + 150 × $25 × 4 = $15,000 = $23,400/yr = $156/unit.

How to Use

Enter units.
Enter filters per unit.
Enter filter cost each.
Enter replacements per year.
Enter labor cost per visit.
Read annual program cost.

Frequently Asked Questions

Replacement cadence?

Standard pleated filter (1-inch): every 60-90 days. HEPA/high-MERV (13+): every 90-120 days. MERV 8-11 (mid-grade): every 90 days. Heavy-use (pets, smokers, dusty area): every 30-45 days. Building-provided: usually 3-4 times per year standard. Tenant-provided (opt-in): variable quality. Best: building provides + swaps quarterly during inspection.

Filter cost?

Basic 1-inch pleated (MERV 8): $3-8 each. Higher MERV (11-13): $8-20 each. HEPA (MERV 17+, specialty): $30-75 each. Bulk purchase (case of 12-100): 30-50% discount. Labor: 15-30 minutes per unit (finding, accessing, inventory, disposal). Combined material + labor: $15-50/unit/visit. Annual program: $60-250/unit/year typical.

Why building should provide?

Tenant-supplied filters: 30-50% of tenants never change, poor filter quality, improper install. Results: (1) Reduced HVAC efficiency 15-30%, (2) Indoor air quality issues, (3) Earlier equipment failure. Building-provided filters + quarterly tech visit: ensures system performance, resident satisfaction, extended equipment life (2-5 years added). Economic trade-off positive in most cases.

Integration with inspection?

Quarterly HVAC tech visits: filter change + system inspection. Fee: $30-75/unit/visit. Includes: check refrigerant, coil cleanliness, drain pan, condensate line, thermostat function, basic diagnostic. Ties into: preventive maintenance schedule. Prevents many emergency service calls. Annual inspection-only (without filter change): $100-250/unit/year. Integrated approach adds $60-150/unit/year for filter changes but saves $200-500/unit/year in emergency service.