Look for a company that inspects before quoting, uses proper mechanical cleaning equipment rather than just a vacuum at the vents, provides before-and-after documentation, and is transparent about what's included in the price.
Ask What the Cleaning Actually Involves
A proper duct clean uses equipment that agitates and extracts debris from inside the ductwork itself, not just a vacuum passed briefly over accessible vent openings. If a company can't clearly describe their process or equipment, that's usually a sign the service won't be thorough.
Expect an Inspection Before a Quote
A reliable company assesses the extent of buildup, the duct system's accessibility, and any damage before quoting a price, rather than offering a flat rate over the phone without seeing the property. This also protects you from surprise add-on charges once the technician arrives.
Documentation and Follow-Up Matter
Photos or video of the ductwork before and after cleaning give a clear record of the work done and are increasingly standard among established companies. A company willing to explain what they found and recommend a realistic next cleaning date, rather than upselling unnecessary extras, is generally more trustworthy.
If this sounds like what's happening with your unit, our AC Duct Cleaning page covers exactly how we handle it, or you can message us directly for a same-day assessment.
Frequently Asked Questions
What questions should I ask a duct cleaning company before booking?
Ask what equipment they use, whether they inspect before quoting, whether photos or documentation are provided, and what exactly is included in the price.
Is the cheapest duct cleaning quote usually the best option?
Not necessarily — an unusually low price sometimes means a surface-level service rather than a full mechanical clean of the ductwork.
Should duct cleaning come with any guarantee?
A reasonable workmanship guarantee on the service is a fair thing to expect and ask about before booking.