Frequently Asked Questions

Cleaning your air ducts removes dust, allergens, and mold, improves airflow and HVAC efficiency, and reduces indoor air pollution. It helps prevent allergies, improves home cleanliness, and extends the life of your system.

The National Air Duct Cleaners Association (NADCA) recommends every 3-5 years. Homes with pets, allergies, smokers, or recent renovations may need cleaning more frequently.

Yes! Air duct cleaning improves air quality, reduces allergens, increases HVAC efficiency, and lowers energy bills by allowing your system to run more smoothly.

Signs include excessive dust buildup, musty odors, weak airflow, allergy flare-ups, or visible dirt in vents.

Yes! Our negative air cleaning process safely removes contaminants without damaging ducts or releasing debris into your home.

Air duct cleaning usually takes about 2 to 6 hours, depending on the size of your system and how dirty it is.

While you can do basic maintenance like changing filters, cleaning air ducts is best left to professionals who have the right tools and training. DIY cleaning only removes surface dust—professional cleaning fully extracts deep-set debris using specialized equipment.

To prepare for air duct cleaning, clear the area around vents and registers. This allows the technicians to do their job easily. We'll do the rest!

Mile High Ducts serves the metro Denver area. We're owned by Denver natives, not a national franchise.

We believe in transparent prices. You can see our full price book here.

At Mile High Ducts, we use professional-grade, industry-leading equipment to ensure a thorough and effective clean:

• Rotary Brushes & Air Whips – We agitate and loosen buildup from duct walls.
• Negative Air Machines & HEPA Vacuums – We use negative air machines with 5,000 Cubic Feet per Minute (CPM) airflow capacity. This creates a powerful suction to remove dust, debris, and contaminants from your ductwork.
• EPA-Registered Sanitizers – Optional air duct sanitizing eliminates bacteria, mold, and odors.

Yes! We believe in transparent pricing and finding the best solution for our customers. We don't believe in high-pressure sales tactics or bait and switch pricing.

Here are some ways you can get in touch with us for your free estimate:

• Call 720-422-9953
• Text 720-422-9953
• Live chat us on our website
• Fill out this contact us form
• Book your service here

Mile High Ducts is local, family-owned,delivering honest, high-quality air duct cleaning with no hidden fees or gimmicks. Unlike competitors, we use negative air technology for a deeper, more effective clean and provide transparent pricing, before-and-after photos, and expert service to ensure your home's air is truly clean.

Mile High Ducts doesn't offer $99 air duct cleaning because it's impossible to properly clean air ducts for $99.

Most $99 air duct cleaning offers are bait-and-switch scams. Companies advertise low prices but charge extra for essential services. Proper cleaning requires professional equipment, trained technicians, and time. $99 can't support these things.

Choose a trusted, certified company to ensure a thorough, honest cleaning without hidden fees. This link from the National Air Duct Cleaning Association (NADCA) shares how to avoid air duct cleaning scams.

We want to make it as easy as possible for our customers to pay for our services. Options to pay include a physical card terminal, an online payment link, or an invoice.

We accept cash, checks, credit cards, and debit cards.

We love to hear from our customers so we can continue to provide top-notch service.

We'd love for our customers to leave us a Google Review here. You can also find our reviews page using this QR code.