Duct Cleaning, Sealing & Sanitizing

Duct Cleaning & Crawlspace Duct Sealing

Professional duct cleaning with HEPA capture, plus sealing and insulation for crawlspaces. Reduce dust, odors, and humidity issues. Book your inspection today.

Clean Air Starts in Your Ducts

Cleaner ducts can make a difference—but in the Lowcountry, sealed and insulated ducts provide lasting results. At Pinnacle, we don’t just clean—we fix the root causes of dust, odors, and humidity problems. By using professional-grade materials, sealants, and insulation built for the Lowcountry’s high-moisture environment, we deliver lasting protection against humidity, mold, and comfort loss—far beyond what standard products or basic cleaning alone can provide.

When Duct Cleaning Makes Sense

  • Visible dust or debris at registers, or after a remodel
  • Musty odors or suspected microbial growth inside ducts
  • Long run times, poor airflow, or frequent dusting needs
  • Guests or renters with sensitivities to allergens

Our Process: Source Removal + Lasting Protection

  1. Inspect all supply and return trunks, branches, and plenums
  2. Protect your furnishings and registers, then place the system under negative pressure with HEPA filtration
  3. Agitate & Extract using brushes or air whips plus high powered vacuum capture
  4. Clean Grilles and, if needed, coils and blower components
  5. Sanitize (Optional) with an EPA-registered solution
  6. Document & Advise on sealing, insulation, and filtration upgrades for long-term results

Coastal Crawlspace Upgrades

  • Re-insulate with R-8 and continuous vapor barriers
  • Seal all seams and boots with UL-rated mastic and tape
  • Correct kinks, sags, and slopes with proper support
  • Replace compromised flex or liner sections


Many persistent dust and humidity issues are solved not just by cleaning, but by sealing duct leaks, upgrading to MERV-13+ filtration, and balancing return air.

Start with an Inspection

Protect your air quality and comfort with a full ductwork assessment.

Book Online or call us at (843) 271-3780 today.

Your favorite HVAC Brand Dealer

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Trusted HVAC Brands we work with

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Carrier logo in white text inside a blue oval.
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Samsung logo: white
Mitsubishi Electric logo: red diamonds logo with
Lennox logo: Red text, curved red line, white background.

Why Choose Pinnacle for Air Duct Cleaning in Port Royal?

For a cleaner, healthier home, trust the experts at Pinnacle Heating And Air:

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Improved Air Quality: Our service directly contributes to reducing allergens, dust, and odors circulating in your Port Royal home

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Enhanced System Efficiency: Clean ducts allow your HVAC system to operate more freely, potentially lowering energy consumption and bills.

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Advanced Equipment: We utilize powerful, specialized vacuum systems and brushes designed to effectively remove even stubborn debris from your entire ductwork system.