Basic
$0.17 – $0.42 per sq ft
Supply and return ducts cleaned with a portable HEPA vacuum and brushes, furnace blower compartment vacuumed

Whole-system cleaning of a forced-air central heating system (supply/return ducts plus furnace/blower cleaning), priced per sq ft of conditioned floor area.
Clean Central Heating System in Portland, Maine typically costs $0.20 to $0.49 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Portland are 1.0% lower than the national average for clean central heating system.
National average: $0.20 – $0.50 per sq ft
$0.17 – $0.42 per sq ft
Supply and return ducts cleaned with a portable HEPA vacuum and brushes, furnace blower compartment vacuumed
$0.20 – $0.49 per sq ft
High-airflow negative-air duct cleaning with rotary brushes, registers washed, blower wheel and furnace cabinet cleaned
$0.25 – $0.61 per sq ft
Negative-air cleaning with rotary brushes and air whips, blower wheel removed and washed, indoor coil cleaned, before-and-after photos
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.09 – $0.21 | sq ft |
| Labor | labor | $0.07 – $0.18 | sq ft |
| Supplies & Other | supplies | $0.02 – $0.06 | sq ft |
| Equipment & Disposal | equipment | $0.02 – $0.04 | sq ft |
Negative-air machine hose attached to a main supply trunk
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Find a pro to do thisRotary brush cable in a return duct
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Find a pro to do thisRemoved furnace blower wheel being cleaned
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Find a pro to do thisConnect with local clean central heating system contractors in Portland for personalized quotes based on your specific project.