You've probably seen the "$99 whole house duct cleaning" flyers in your mailbox. Is duct cleaning actually worth it, or is it a scam?
The honest answer is somewhere in between. Duct cleaning can be valuable in certain situations, but it's not always necessary. Here's how to know if you need it.
When Duct Cleaning IS Worth It
Definitely get duct cleaning if:
- Post-renovation: Drywall dust, sawdust, and construction debris in ducts is common
- After moving in: You don't know the home's history
- Visible mold: Any signs of mold growth require professional cleaning
- Pest evidence: Rodent droppings, insects, or nests
- Excessive dust: Dust buildup immediately after cleaning filters
- Pet owners: Hair and dander accumulate over time
- Allergies getting worse: Indoor air quality affecting health
- Never been cleaned: Home is 10+ years old with no cleaning history
In these situations, proper duct cleaning improves air quality and HVAC efficiency.
When It's Probably Unnecessary
Skip duct cleaning if:
- New home: Ducts are clean from construction
- Cleaned in last 3-5 years: Unless major events occurred
- No visible dust: System seems to be running clean
- No renovations: No construction dust introduced
- No health complaints: Everyone breathing fine
Marketing scams to watch for: - "$99 whole house" deals (real cleaning costs $400-$800) - Pressure to clean annually (every 3-5 years is typical) - Scare tactics about mold without testing - Add-on services pushed aggressively
What Proper Duct Cleaning Looks Like
A legitimate duct cleaning includes:
- Inspection: Camera inspection of ductwork condition
- Access: Opening vents and creating access points
- Agitation: Brushes or compressed air to loosen debris
- Vacuum: Truck-mounted or portable HEPA vacuum
- All components: Supply, return, and main trunk lines
- Optional: Sanitizing treatment (not always needed)
Time required: 2-4 hours for typical home Equipment: Professional HEPA vacuum system, not a shop vac
If someone quotes under $300 or offers to clean in under an hour, they're not doing it properly.
Real Costs in Ottawa
Legitimate duct cleaning costs:
- Small home (<1,500 sq ft): $400 - $500
- Medium home (1,500-2,500 sq ft): $500 - $650
- Large home (2,500+ sq ft): $650 - $800
Add-ons that may be worth it: - Dryer vent cleaning: $100 - $150 (do this - fire hazard) - Sanitizing treatment: $75 - $150 (optional, for odors/allergies) - Furnace cleaning: Often included, verify
Red flags: - Quotes under $200 (bait and switch) - Per-vent pricing (should be whole-house) - Significant upcharges after starting
How Often Should You Clean?
Standard recommendation: Every 3-5 years
More frequently if: - Pets in the home (every 2-3 years) - Family members with allergies or asthma - Smokers in the household - Recent renovations
Maintain between cleanings: - Change furnace filter every 1-3 months - Use high-quality filters (MERV 8-11) - Keep return vents unobstructed - Vacuum registers regularly
The Bottom Line
Duct cleaning is worth it in the right situations - post-renovation, visible contamination, or every 3-5 years for maintenance. Avoid the "$99 special" scams and hire a reputable company with proper equipment.
Not sure if you need duct cleaning? We offer inspection services to assess your ductwork condition and give you an honest recommendation.
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