Air Duct Cleaning Cost in Columbia, SC
Lennox 5-Ton 21 SEER

The average cost of air duct cleaning in Columbia, SC with a Lennox 5.0-ton 21 SEER system is $780, with most homeowners paying between $640 and $920 depending on home conditions, permit fees, and labor availability. The Lennox 5.0-ton unit is a premium, energy-efficient unit engineered for long-term reliability, sized for homes with 2,100-2,700 sq ft of conditioned space. At 21 SEER, this unit qualifies for federal energy tax credits and delivers exceptional long-term savings.

Cost Breakdown - Columbia, SC

* Estimates based on Columbia area labor rates ($107.03-$173.73/hr, BLS-sourced). Actual costs vary by home conditions and contractor. Get 3 quotes.

About Air Duct Cleaning

Professional cleaning of HVAC ductwork to remove accumulated dust, debris, mold, and allergens for better air quality and airflow. In Columbia, SC, licensed HVAC contractors typically charge $107–$174 per hour for installation labor, with this job averaging 4 hours.

The equipment cost for the Lennox 5.0-ton 21 SEER system represents approximately $110 of your total. Installation labor in Columbia adds $560, with permit fees, refrigerant, and disposal bringing the full estimate to $780. Prices in SC vary by contractor — always collect 3 quotes before scheduling a major HVAC installation.

Signs You Need Air Duct Cleaning

Consider scheduling air duct cleaning in Columbia, SC if you notice visible dust blowing from vents or musty odor when hvac runs or worsening indoor allergies. Early action prevents the costly emergency service premiums common in the South region during peak seasons.

• -Visible dust blowing from vents
• -Musty odor when HVAC runs
• -Worsening indoor allergies
• -Recent home renovation with drywall dust
• -No cleaning in 5+ years

What's Included

• -Inspection of all duct runs
• -High-powered negative pressure extraction
• -Rotary brush cleaning
• -Sanitization treatment option
• -Supply and return vent cleaning

Hiring an HVAC Contractor in Columbia

• 1.Verify the contractor holds a current SC HVAC license and carries liability insurance.
• 2.Request an itemized quote that separates equipment, labor, and permit costs.
• 3.Ask specifically about Lennox dealer status — authorized dealers in Columbia, SC often offer extended warranties.
• 4.Confirm the quote includes refrigerant, line set, and startup commissioning — not just the equipment.
• 5.Check for manufacturer rebates and utility company incentives before signing.

Frequently Asked Questions