Las Vegas Air Duct Cleaning: 18 Verified Companies with Pricing & Credentials

• NADCA Certified
  The National Air Duct Cleaners Association is the only trade body specific to this industry. NADCA membership requires at least one ASCS (Air Systems Cleaning Specialist) certified technician on staff and adherence to the ACR standard for assessment, cleaning, and restoration. Seven Las Vegas-area companies currently hold this certification — verified directly through NADCA's public directory, not through company self-reporting. Multiple companies falsely claiming NADCA certification were flagged below.
• Nevada NSCB License
  The Nevada State Contractors Board C-21 classification (Refrigeration and Air Conditioning) covers repair, installation, and maintenance of HVAC equipment and related ductwork. Air duct cleaning alone does not clearly require this license under Nevada's definition of contractor. However, any company performing coil cleaning, duct repair, duct sealing, refrigerant handling, or equipment modification must hold a C-21 license and EPA 608 certification. We verify NSCB license status at nscb.nv.gov.
• Before & After Documentation
  Legitimate duct cleaning companies photograph or video the interior of ducts before and after cleaning to demonstrate the work performed. In Las Vegas's market — where technicians frequently claim to "discover" mold or damage justifying hundreds or thousands in upsells — before-and-after documentation is especially important. Seven companies in this directory explicitly include pre/post video documentation as standard practice.
• 702/725 Area Code
  Any Las Vegas-area business using a non-702/725 area code is a significant red flag for a lead-generation operation routing calls to an out-of-area call center. We identified one suspected spam listing using a 775 (Reno/Northern Nevada) area code while advertising Clark County services. Legitimate local operators use 702 or 725 numbers.
• Years in Business and Physical Address
  Fly-by-night operators frequently rebrand after accumulating complaints. Companies operating continuously under the same name for 5+ years with consistent review histories are substantially less likely to be problematic. We also verify physical address presence: legitimate duct cleaning companies have service vehicles and equipment requiring a real operational base, not just a keyword domain.

This directory is built from independent verification, not advertising revenue or business submissions. We do not accept payment from listed companies and do not rank companies based on sponsorship.

Data sources:

• NADCA Find a Professional directory
• Nevada State Contractors Board (nscb.nv.gov)
• Google Business Profiles
• Yelp
• Angi / HomeAdvisor
• BBB
• HomeYou (312 completed Las Vegas projects)
• Manta (Clark County 2025)
• HomeBlue (Las Vegas metro)
• KTNV Channel 13 investigative reporting
• Las Vegas Review-Journal
• DOJ / U.S. Attorney District of Nevada (DPL Enterprises case)

Exclusion criteria: A business is excluded from this directory if it uses a non-702/725 area code for a Clark County service listing; shows patterns consistent with lead-generation fronts (generic city-keyword domains, template websites, copy-paste errors referencing other cities, no owner identification); falsely claims NADCA certification not found in the NADCA directory; or advertises pricing below $250 for whole-house cleaning, which we consider a definitive bait-and-switch indicator in the Las Vegas market.

Nevada-specific verification note: Nevada does not explicitly require a contractor's license for air duct cleaning alone (cleaning without repair, modification, or installation). The NSCB C-21 classification applies to HVAC repair and modification work. We verify C-21 status for any company performing services beyond cleaning. NADCA certification (ASCS credential) remains the primary industry quality standard regardless of Nevada licensing status.

Update frequency: This directory is reviewed quarterly. NADCA membership status is re-verified at each review through the primary NADCA directory. The most recent verification was completed in March 2026.

Report an error or suggest a business: If you believe a listing contains incorrect information, or if you know of a legitimate air duct cleaning company in Las Vegas that should be considered for inclusion, please contact us. We will verify the submission against our standard criteria before adding it.