The Truth About Duct Cleaning: When You Need It and When You Don't

When Duct Cleaning Makes Sense

According to the EPA, you should consider duct cleaning if:

• Visible mold growth inside ducts or on components
• Vermin infestation - rodents or insects in ductwork
• Excessive debris - ducts clogged with dust, debris, or particles
• After renovation - construction dust in the system
• New home purchase - unknown duct history

When You Probably Don't Need It

• Routine "preventive" cleaning - usually unnecessary
• After seeing a promotional offer - often a scam setup
• Based solely on age of ductwork - age alone isn't a reason

Warning Signs of Duct Cleaning Scams

• Extremely low prices - "$49 whole house cleaning" is a red flag
• High-pressure sales tactics - Claims of dire health risks
• "Free inspections" that always find problems
• Chemical treatments pushed without cause
• No before/after documentation

What Legitimate Duct Cleaning Looks Like

• Uses proper negative air machines
• Accesses all vents and returns
• Cleans entire system, not just accessible parts
• Takes several hours (not 30 minutes)
• Costs $300-$500 for average home
• Provides documentation of work done

Our Honest Recommendation

Most Peninsula homes don't need duct cleaning more than once every 5-10 years, if ever. Focus on regular filter changes and addressing any specific issues (mold, pests, visible problems) rather than routine cleaning.