Fresno Air Duct Cleaning: 18 Verified Companies with Credentials & Red Flags

📋 18 verified companies ✅ 4 NADCA-certified 🕐 Updated March 2026

Only four NADCA-certified air duct cleaning companies serve the Fresno / Central Valley metro area as of March 2026 — an extraordinarily thin coverage for a region of roughly 4 million residents spanning six counties. Fresno and Bakersfield consistently rank among the top three most polluted cities in America for particulate matter, according to the American Lung Association, making duct hygiene a genuine public-health issue here rather than a discretionary service. Agricultural dust, tule fog, wildfire smoke, and aging housing stock (median build year: 1979) combine to create outsized demand — which spam operators aggressively exploit with coordinated fake-listing networks and bait-and-switch pricing.

This directory catalogs every independently verified duct cleaning operator in the Fresno/Clovis core and extended Central Valley corridor, identifies a prolific spam network operating identical template websites across at least ten local cities, and provides the market context needed to hire safely. Every company was checked against the NADCA member directory, the California CSLB license database, BBB profiles, and cross-referenced consumer review platforms. CSLB C-20 licensing is legally required for duct cleaning work exceeding $500 in labor and materials — we flag unlicensed operators accordingly.

📊 Fresno Air Duct Cleaning — Quick Reference
Verified Companies
18 total (4 NADCA-certified, 14 non-certified)
Legitimate Price Range
$350–$800+ (whole-house residential)
Travel Premium (Extended Corridor)
$50–$150 added for Bakersfield, Modesto, Visalia
NADCA National Range
$450–$1,000
🚩 Bait-and-Switch Red Flag
Any offer below $250 (especially $49–$99 whole-house specials)
How to Verify
NADCA directory → CSLB (cslb.ca.gov) → physical address
Spam Listings Found
17+ suspected spam/deceptive (coordinated network, as of March 2026)
Last Verified
March 2026 (quarterly updates)

Verified Air Duct Cleaning Companies in Fresno & the Central Valley

Action Duct Cleaning Company Inc

NADCA CERTIFIED 34 yrs NADCA CSLB #570541 & #874976 3 ASCS on Staff
HQ Address
2333 Lincoln Ave, Altadena, CA 91001
Fresno-Tulare Phone
(559) 699-7126
Kern County Phone
(661) 760-7699
Toll-Free
(800) 371-2284
Website
actionduct.com
Service Area
All Central Valley — separate Fresno-Tulare division and Kern County division
NADCA Since
January 1992 (34 years — one of California's longest NADCA memberships)
CSLB Licenses
#570541 & #874976 — Both Active. C-43, Air Duct Cleaning, Air & Water Balancing, C-20, B. Expires 6/30/2027.
Verify BBB
Check BBB
The longest-tenured NADCA member serving the Central Valley, with continuous membership since January 1992 — 34 years, making it one of California's longest-standing NADCA relationships. HQ is in Altadena (LA metro) but maintains dedicated local phone numbers and field crews for both the Fresno-Tulare division ((559) 699-7126) and the Kern County division ((661) 760-7699). Three ASCS-certified personnel: Dan Stradford, Fernando Rivas, and Joe Barton Jr. Holds two active CSLB licenses (#570541 and #874976) with the broadest classification set found in the market: C-43 (Sheet Metal), Air Duct Cleaning, Air & Water Balancing, C-20 (HVAC), and B (General Building). Broadest service menu in the market: air duct cleaning, dryer vent cleaning, chimney sweeping, Aeroseal duct sealing, camera duct inspection, kitchen exhaust cleaning, smoke damage restoration, pressure washing, silo & tank cleaning, and paint booth cleaning. Customer reviews specifically name local technicians Andy, Nick, Claudio, Jesse, and Joshua. Has served the San Joaquin Valley for 30+ years.

Environmental Cleaning Institute dba E.C.I.

NADCA CERTIFIED 31 yrs NADCA CSLB #714317 Commercial Only
Address
1500 Tollhouse Rd, Ste 103, Clovis, CA 93611
Phone
(559) 323-9788 / (559) 323-9798
Website
ecihvac.com
Service Area
Fresno/Clovis core (commercial projects)
NADCA Since
April 1995 (31 years — longest-standing Central Valley member)
CSLB License
#714317 — Active. B, C-20, Plumbing, C-43, Air Duct Cleaning, Air & Water Balancing.
Job Types
Commercial only
The longest-tenured NADCA member physically based in the Central Valley, with continuous membership since April 1995 — 31 years. Operates under the related entity Engineered Controls Inc (same Clovis address, same personnel). Two ASCS-certified personnel: Richard Malcolm and Rick Millard. Holds CSLB license #714317 with an unusually broad set of classifications: B (General Building), C-20 (HVAC), Plumbing, C-43 (Sheet Metal), Air Duct Cleaning, and Air & Water Balancing — indicating genuine mechanical contractor depth. Additional services include HVAC service and installation. Listed in the Blue Book since 2005. Important caveat: commercial-only operation. Does not serve residential customers.
⚠️ Commercial-only focus. This company does not clean residential ductwork. Contact them only for commercial projects.

COIT Services of Modesto

NADCA CERTIFIED 25 yrs NADCA CSLB #678119 Only CVI in Central Valley
Address
4210 Kiernan Ave, Modesto, CA 95356
Phone
(209) 545-2648
Website
coit.com/modesto
Service Area
Stanislaus-Modesto corridor; Modesto to Tracy, Stockton to Merced
NADCA Since
August 2001 (25 years)
CSLB License
#678119 (verify current status at cslb.ca.gov)
Price Range
Contact for quote
Verify BBB
Check BBB
The only NADCA member in the Stanislaus/Merced corridor, and the only CVI (Certified Ventilation Inspector) holder found in the entire Central Valley. Two NADCA-certified personnel: Andrew Rodgers (ASCS, CVI) and Tino Pena (ASCS). Andrew Rodgers's CVI credential signals the highest level of NADCA certification available — fewer than 10% of NADCA members hold this designation nationwide. Locally owned by the Bakker family for 50+ years — a genuine multi-generational local business, not a corporate franchise operation. A+ BBB rating, IICRC certified, and a 24/7 restoration team for fire and flood response. Comprehensive service menu: duct cleaning, dryer vent cleaning, duct sealing, fire/flood restoration, HVAC service/installation, IAQ services, and mold remediation. Best option for the Modesto-Turlock-Merced corridor, and for any Central Valley job requiring CVI-level inspection. CSLB license #678119 — verify current renewal status at cslb.ca.gov.
⚠️ CSLB license #678119 showed a 9/30/2025 expiration date in the BBB profile. Verify current active status at cslb.ca.gov before scheduling.

Stanley Steemer Fresno

NADCA CERTIFIED NADCA Since 2021 In Fresno Since 1987
Address
5279 W Clinton Ave, Fresno, CA 93722
Phone
(559) 246-1747
Website
stanleysteemer.com/locations/CA/Fresno/179
Service Area
Fresno/Clovis core; also Madera, Sanger, Visalia, Tulare
NADCA Since
September 2021
Job Types
Commercial, Residential
National franchise brand, locally operated by Robert Newton LLC. The Fresno franchise has been in operation since 1987 — nearly four decades of continuous local presence, making it the longest-operating franchise location in the market. NADCA-certified since September 2021; ASCS credential held by Justin Newton. Serves the Fresno/Clovis core plus Madera, Sanger, Visalia, and Tulare. Also operates a separate Bakersfield franchise location. Additional services beyond duct cleaning include carpet cleaning, dryer vent cleaning, upholstery, tile & grout, hardwood cleaning, and water damage restoration. BBB rating: A+ (not BBB Accredited). Multiple positive local reviews. CSLB: parent LA County entities hold #977078, #856264, #959776 (C-20) — verify Fresno-specific license directly with CSLB under "Robert Newton" or "Stanley Steemer of Fresno."
⚠️ NADCA membership dates from September 2021. Fresno-specific CSLB license not independently confirmed — verify at cslb.ca.gov by searching "Stanley Steemer of Fresno" or licensee "Robert Newton."

California Indoor Comfort Inc

CSLB #888103 C-20 Highly Rated Yelp Fresno-Based
Address
Fresno, CA (physical office)
Phone
(559) 276-7457
Website
calindoorcomfort.com
Service Area
Fresno/Clovis plus Selma, Sanger, Kingsburg, Fowler, Madera, Reedley, Kerman, Parlier, Dinuba, Caruthers, Friant, Coarsegold
CSLB License
#888103 — Active, C-20. Bond: $15,000 with Western Surety Company.
Verify BBB
Check BBB
Full-service HVAC contractor with an active C-20 license and a broad service area spanning Fresno County and into Madera and Tulare counties. President: Keith Rossignol. Services include air duct cleaning, duct sealing, duct replacement, duct testing, AC and heating installation and repair, indoor air quality, water heaters, ductless systems, and attic insulation. Highly rated on Yelp with multiple positive reviews. One of the stronger verified non-NADCA operators in the Fresno/Clovis core.

Brian's Heating & Cooling Inc

CSLB #862395 C-20 BBB A+ Accredited Est. 1984
Address
2910 Falcon Drive, Suite D, Madera, CA 93637
Phone
(559) 675-1681
Website
brianforhvac.com
Service Area
Madera primary; also Fresno, Clovis, Chowchilla
CSLB License
#862395 — Active, C-20. Expires 11/30/2027. Bond: $25,000. Workers' comp current through 11/30/2026.
One of the strongest verified operators in the Madera sub-market. Owner Brian Padilla has been in HVAC since 1984 — over 40 years of hands-on experience. Family-owned. CSLB license #862395 is active with confirmed C-20 classification, $25,000 bond, and current workers' compensation insurance through November 2026. BBB Accredited with A+ rating. Lennox Award and Angi Super Service Award winner. Duct cleaning scope includes coils, registers, blower motor, air filters, heat exchanger, and drain pan — a more comprehensive checklist than most competitors. Services also include duct sealing, AC/heating repair/install/maintenance, energy audits, indoor air quality, ventilation, and tankless water heaters. Physical address confirmed (Madera).

Balanced Comfort Cooling, Heating & Plumbing

CSLB #1027318 Est. 2012 Fresno + Visalia Offices
Address
4485 N Selland Ave, Fresno, CA 93722; also 145 S Dunworth St, Visalia, CA
Phone
(559) 234-4131
Website
balancedcomfort.com
Service Area
Fresno/Clovis, Sanger, Selma, Kerman, Parlier, Kingsburg, Reedley, Madera, Dinuba, Orange Cove, Hanford, Lemoore, Chowchilla, Visalia
CSLB License
#1027318 — Active. B, C-2 (Insulation), C-20 (HVAC). EPA Renovation License NAT-F218027-1. BuildZoom Score: 114 (top 2%).
Pricing
Duct cleaning + free dryer vent cleaning: $199; wildfire recovery cleaning: $199
Verify BBB
Check BBB
Founded 2012 by Aaron Husak. Family-owned with two confirmed physical offices (Fresno and Visalia). Claims 4,000+ five-star reviews. CSLB license #1027318 carries an unusually broad set of classifications: B (General Building), C-2 (Insulation), and C-20 (HVAC), plus an EPA Renovation License. BuildZoom score of 114 puts this company in the top 2% of California contractors. Hourly-paid technicians with no commission pressure — a consumer-friendly compensation model that reduces upsell pressure. Services include duct cleaning, dryer vent cleaning, AC installation/repair/maintenance, heating, plumbing, water heaters, sewer services, ductless AC, and wildfire recovery HVAC cleaning. Very broad service area spanning Fresno and Tulare counties.
⚠️ BBB profile notes "failure to respond to 3 complaints." Worth calling ahead to confirm current responsiveness. The $199 duct cleaning + dryer vent bundle pricing is low but not bait-and-switch territory given the company's verified physical presence, CSLB license, and multi-year review history.

Purl's Sheet Metal & Air Conditioning

Est. 1952 (74 yrs) 50+ yr customer relationships
Address
South Schnoor Ave, Madera/Fresno area (31,000 sq ft facility)
Website
purlsheetmetal.com
Service Area
Fresno, Madera, surrounding Central Valley
Verify BBB
Check BBB
In business since 1952 — 74 years, making it one of the oldest HVAC companies in the entire Central Valley. Current operators Brian Driggs and Kurt Davidson took over in 2011 and have maintained the company's multi-decade reputation. Operates from a 31,000 sq ft facility. HIS-registered sales team. Long-term customers regularly cite 50+ year relationships with the company across multiple generations. Services include duct cleaning, duct sealing, HVAC maintenance/repair/installation, and sheet metal fabrication (a differentiator for custom ductwork jobs). CSLB license not confirmed via web search — company states CSLB-licensed technicians (likely C-20 and C-43); direct CSLB lookup recommended.
⚠️ CSLB license number not independently confirmed. Verify at cslb.ca.gov before scheduling. Contact phone not listed publicly — use purlsheetmetal.com/about/contact.

Tyson Insulation / Tyson Energy Solutions

BBB A+ Accredited Est. 2015 Energy Specialist
Address
5645 E Westover Ave, Ste 101, Fresno, CA 93727
Phone
(559) 819-5254 / (559) 754-7095
Websites
tysoninsulation.com; tysonenergysolutions.com
Service Area
Fresno, Clovis, Madera, Sanger, Reedley, Selma, Dinuba, Parlier, Kerman, Coarsegold, Hanford, Visalia
In business since 2015. Owner Chris. Physical address confirmed at 5645 E Westover Ave, Fresno. BBB A+ Accredited. Authorized Attic Systems dealer. Primary expertise is insulation and energy efficiency, with air duct cleaning as a complementary service. Yelp presence: 31 reviews, 55 photos. Services include air duct cleaning, attic insulation, duct replacement, whole house fans, attic fans, air sealing, air purifiers, and radiant barriers. Claims licensed, bonded, and insured — CSLB license number not confirmed via web search; verify directly.
⚠️ CSLB license number not independently confirmed. Verify at cslb.ca.gov before scheduling.

Jack's Refrigeration Inc

CSLB #260935 BBB Accredited Since 1987 Est. 1959 (67 yrs)
Address
2539 Simpson St, Kingsburg, CA 93631
Phone
(559) 897-5200
Website
jacksref.com
Service Area
Kingsburg, Fresno, Visalia, Clovis, surrounding Central Valley
CSLB License
#260935 (verify current renewal at cslb.ca.gov)
In business since 1959 — 67 years, incorporated August 14, 1969. One of the most deeply established HVAC companies in the southern Central Valley corridor. Carrier Factory Authorized Dealer and President's Award recipient — designations Carrier reserves for consistently high-performing dealers. BBB Accredited since September 1, 1987 — nearly 40 years of continuous BBB accreditation, an unusually strong track record. Services include air duct cleaning, duct insulation, duct testing, duct sealing, AC and heating services, UV light installation, and indoor air quality.
⚠️ CSLB license #260935 showed a 7/31/2024 expiration date per BBB. Verify current renewal status at cslb.ca.gov before scheduling.

Fresno Heating and Cooling

BBB A+ Accredited Fresno-Based
Address
4051 N Valentine Ave, Ste 108, Fresno, CA 93722
Phone
(559) 720-0479
Website
fresnosheatingandcooling.com
Service Area
Fresno County
BBB A+ Accredited Fresno-based HVAC contractor with a confirmed physical address. Services include duct cleaning, duct repair, duct replacement, AC and heating services, and maintenance. CSLB license not confirmed via web search — verify at cslb.ca.gov.
⚠️ CSLB license not independently confirmed. Verify at cslb.ca.gov before scheduling.

Elements Heating & Air

BBB A+ Accredited Clovis-Based
Address
272 Peach Ave, Clovis, CA 93612
Phone
(559) 900-3331
Service Area
San Joaquin Valley; Fresno/Kings/Madera/Tulare Counties
BBB A+ Accredited HVAC contractor based in Clovis with a confirmed physical address. Local 559 phone number. Services include heating, air conditioning, and air duct cleaning. Serves a broad four-county footprint across the San Joaquin Valley.

J.C. Melton Air Conditioning

BBB A+ Accredited Long-Established Fresno Firm
Address
1932 E Home Ave, Fresno, CA 93703
Phone
(559) 268-6286
Service Area
Fresno/Inyo/Madera/Mono/Tulare Counties
BBB A+ Accredited, long-established Fresno HVAC firm with a confirmed physical address and local 559 phone number. Services include heating, air conditioning, ductwork, and duct cleaning. Broad service footprint covering five counties including the remote Inyo and Mono county corridors.

Restore Pros Carpet & Floor Care

NADCA Standards Followed 75+ Five-Star Reviews Family-Owned
Address
Fresno, CA (service-area)
Phone
(559) 213-2570
Website
restoreproscfc.com
Family-owned, multi-service cleaning company that explicitly references NADCA and IICRC standards in its service descriptions — not a formal NADCA member but demonstrates awareness of industry protocols. Services include air duct cleaning, dryer vent cleaning, carpet cleaning, tile cleaning, upholstery cleaning, and HVAC sanitizing. Claims 75 five-star reviews. Pricing: save $50 when spending $249 or more.
⚠️ Not a NADCA member. Claims to follow NADCA standards but this is unverifiable without formal membership. Verify CSLB license before scheduling.

Affordable Duct Care

Owner-Operated Transparent Flat-Rate Pricing
Service Area
Fresno/Madera, CA
Website
affordableductcare.com
Pricing
$500 flat rate for duct + dryer vent cleaning
Owner-operated with transparent flat-rate pricing: $500 for combined duct and dryer vent cleaning — clearly within legitimate market range. Uses negative air pressure combined with HEPA vacuum extraction and rotary brush cleaning. References NADCA and EPA guidance in its service descriptions. Not a NADCA member. Limited verifiable details beyond website.
⚠️ Not a NADCA member. No phone number or physical address publicly listed. Verify identity and CSLB license before booking.

DustBusters Duct Cleaning Specialists

25+ yrs HVAC Experience Dedicated Duct Specialist
Address
1220 S. Walnut Rd #1, Turlock, CA 95380
Phone
(209) 638-3920
Service Area
All Stanislaus County cities
Pricing
Dryer vent cleaning $285 (regular) / $185 (coupon)
A rare dedicated duct cleaning specialist in a market dominated by full-service HVAC contractors. Owner Enrique Calderon also owns Evolution Heating & Cooling — bringing 25+ years of HVAC experience to a focused duct cleaning operation. Physical address confirmed in Turlock. Services all Stanislaus County cities. Dryer vent cleaning: $285 regular price, $185 with coupon. Offers 1-year labor warranty. Financing available. Best option in the Turlock/Stanislaus County corridor.

Holders Air Conditioning & Heating Inc

CSLB #843535 BBB Accredited Since 2007 Veteran-Owned
Address
1140 Black Gold Rd, Bakersfield, CA
Phone
(661) 493-8704 / (661) 864-1925
Service Area
Bakersfield, Shafter, Delano, Tehachapi, Wasco, and surrounding Kern County
CSLB License
#843535 — Active. C-20, C-38, C-43. BuildZoom score: 111 (top 4%).
The top verified operator in the Kern County / Bakersfield corridor. Veteran-owned. CSLB license #843535 is active with three classifications: C-20 (HVAC), C-38, and C-43 (Sheet Metal). BuildZoom score of 111 puts this company in the top 4% of California contractors. BBB Accredited since May 2007. 24/7 emergency service. Uses Rotobrush equipment. Offers Aeroseal duct sealing. Physical address confirmed.

Advance Air Duct Cleaning

Est. 1988 Yelp 4.4 Stars Owner on Every Job
Address
PO Box 9143, Bakersfield, CA 93389
Phone
(661) 342-9348
Service Area
Bakersfield and Kern County
Hours
7am–7pm, 7 days a week
Owner Craig Welton personally performs every job — a meaningful commitment in a market plagued by bait-and-switch operators who send unqualified subcontractors after a discounted first call. In business since 1988 for chimney sweeping, with duct cleaning added in 1997. Truck-mounted equipment. Yelp: 4.4 stars. Additional services include fire/water restoration and smoke odor removal. BBB A+ (not accredited). Available 7am–7pm, 7 days a week.
⚠️ PO Box address — no physical business address confirmed. Verify CSLB license before scheduling.
Show 14 more verified companies
⚠️ FLAGGED — VERIFY BEFORE HIRING

"Air Duct Cleaning & Repairs" Network (10+ Sites)

Coordinated Spam Network Wrong Area Codes
⚠️ A coordinated SEO spam network operates identical template websites across at least 10 Central Valley cities: airductcleaningservicefresno.com (209 area code for Fresno — wrong), airductcleaningmadera.com (209 for Madera — wrong), airductcleaningclovis.com, airductcleaningsanger.com (209 for Sanger — wrong), airductcleaningdelano.com (805 for Delano — wrong), bakersfieldairductcleaning.com (805 for Bakersfield — wrong), airductcleaningmerced.com, airductcleaningturlock.com, airductcleaningservicemodesto.com, and airductcleaninglosbanos.com. All share identical design templates, identical marketing language, identical "since 2015" claims, and no verifiable physical addresses. The pattern of wrong area codes (209 Stockton for Fresno; 805 Ventura for Bakersfield) confirms these sites have no genuine local presence. HIGH confidence spam across the entire network.

D&D Air Duct Cleaning (ddairductcleaning.com)

Minnesota ZIP Codes Listed Auto-Generated Content
⚠️ VERY HIGH confidence spam. The Sanger, CA page for ddairductcleaning.com lists Minnesota ZIP codes (56145, 56153) and references "Texas Hill Country climate" and California freeways I-10 and SR-91 — none of which apply to Sanger. Entirely auto-generated content with no coherent local knowledge. No real company behind this domain.

Lead Generation Network (.us domains)

Lead Gen / Referral Sites Not Real Companies
⚠️ HIGH confidence spam. Multiple .us domains operate as lead generation fronts with no actual technicians: airductcleaningfresno.us ("our network is an array of trusted local service pros"), clovisairductcleaning.us (same template), visaliaairductcleaning.us (no company name, address, or owner), airductcleaningdelano.us (763 area code — Minnesota, and references Delano, Minnesota in body text). These sites collect homeowner contact info and route it to unvetted subcontractors. Avoid any company that describes itself as a "network" or offers to "connect" you with cleaners.

Additional Flagged Listings

Multiple Operators
⚠️ The following sites also triggered spam signals and should be avoided: "Custom Comfort Heating and AC" (customcomfortheatingandac.com) — toll-free 833 number, claims "52 skilled technicians" (implausible for any local company), template city pages; "HomeSafe Air Duct & Dryer Vent Cleaning" (homesafedryerventsac.com) — Sacramento-based operator creating SEO landing pages for Fresno/Clovis with no verifiable local presence; "Smile Air Duct Cleaning" (smileairductcleaning.com) — spelling errors ("raspiratory deseases," "possibilty"), no address, phone, or owner info; "Pros Air Duct Cleaning Merced" (prosairductcleaning.com) — generic city-appended name, SEO-stuffed, no owner or license info; "TJ's Air Duct Cleaning" (tjsairductcleaning.com) — "fill out our contact form to get connected to local professionals" confirms this is a referral platform, not an actual company; "Fresh Air Duct Cleaning" (ductcleaningfresno.com, phone (559) 840-8787) — low-quality website, pricing as low as $80, limited verifiable details.

Frequently Asked Questions

How often should I have my air ducts cleaned in the Fresno area?
NADCA recommends cleaning every 3–5 years as a baseline, but Fresno and the San Joaquin Valley are not baseline environments. With the American Lung Association consistently ranking Bakersfield and Fresno among America's top 3 most polluted cities for particulate matter, a 2–3 year cleaning cycle is more appropriate for most Central Valley homes. Homes near agricultural operations, homes with swamp coolers (evaporative coolers), and homes that were occupied during a significant wildfire smoke event should consider annual inspection and cleaning as needed. After any wildfire season where the AQI exceeded 150 for multiple consecutive days, professional duct inspection is strongly recommended.
My Fresno home was built in the 1960s–70s. Are there special concerns before duct cleaning?
Yes. Homes built before 1978 may contain asbestos in ductwork insulation, floor tiles, and pipe wrap, as well as lead-based paint. Roughly half of Fresno's housing stock predates 1980 (median construction year: 1979). Before any duct cleaning, ask your contractor about asbestos testing. Look for a company with DOSH (Division of Occupational Safety and Health) certification for asbestos handling, or hire a separate asbestos inspector first. Never allow a contractor to disturb suspected asbestos-containing materials without proper testing. The CSLB has a specific C-22 (Asbestos Abatement) license classification for this work. Budget $200–$500 for pre-cleaning asbestos and lead testing if your home was built before 1978.
Can tule fog cause mold in my ducts?
Absolutely. Tule fog creates weeks of sustained high humidity from November through March. When this moisture enters duct systems — especially through leaks, poorly insulated ductwork, or roof-mounted swamp cooler connections — it creates ideal conditions for mold colonization. December 2025 saw the longest tule fog stretch since the 1970s (22+ consecutive days). Signs of mold include musty odors when the HVAC starts, visible dark spots near registers, and increased allergy symptoms during fog season. If you suspect mold, request a professional inspection with a camera scope before cleaning. Legitimate mold remediation within ductwork can cost $500–$2,000 depending on extent. Duct sealing (such as Aeroseal, $1,200–$2,500) and proper insulation help prevent recurrence.
After wildfire smoke, should I get my ducts cleaned?
Yes, and promptly. NADCA states that "a building doesn't have to actually burn for its HVAC system to incur damage from a wildfire." Soot particles — which contain chemicals, metals, and acids — infiltrate HVAC systems even when homes are sealed. Typical duct systems lose 25–40% of conditioned air through leaks, and those same leaks allow wildfire smoke in. After a significant smoke event: replace HVAC filters immediately (upgrade to MERV 13+), schedule professional duct cleaning with HEPA-vacuum equipment, have coils and the blower motor cleaned, and consider duct sealing. Do not run swamp coolers during smoke events — they pull 100% outdoor air with zero filtration. Post-fire duct cleaning is frequently covered by homeowner's insurance as part of a restoration claim.
How do I spot a bait-and-switch duct cleaning scam in Fresno?
The Central Valley is heavily targeted by duct cleaning scam operations. The #1 red flag is pricing under $100 for "whole house" cleaning. Legitimate whole-house duct cleaning cannot be performed for less than $250–$300, and NADCA's national average ranges from $450–$1,000. Common scam tactics include: a $49–$99 introductory offer (which covers only the main trunk line or first few vents); technicians "discovering" dangerous mold once inside your home to justify $500+ upsells; single-technician operations (proper cleaning requires 2–3 technicians and 3–4 hours minimum); and using household vacuums instead of truck-mounted or HEPA-rated equipment. Our research identified a coordinated spam network operating over 10 fake websites across the Central Valley, all using identical template content and mismatched area codes (Stockton's 209 for Fresno addresses; Ventura's 805 for Bakersfield). Always verify a CSLB C-20 license at cslb.ca.gov before hiring.
How do I verify a duct cleaning company's license in California?
California law requires a C-20 (Warm-Air Heating, Ventilating, and Air-Conditioning) contractor's license from the CSLB for duct cleaning work exceeding $500 in labor and materials. To verify: visit cslb.ca.gov and use the "Check a License" tool. Enter the license number (which must appear in all advertising per California law). Confirm the license status is "Active," the classification includes C-20, and workers' compensation insurance is current. Operating without a license when required carries a $10,000 fine. Also verify NADCA membership directly at nadca.com/find-a-professional — a NADCA member must have at least one ASCS (Air Systems Cleaning Specialist) on staff. In the Fresno metro, only four companies hold active NADCA membership.
I live in Clovis with a newer home. Do I still need duct cleaning?
New construction generates significant duct contamination. Drywall dust, sawdust, insulation fibers, and construction debris commonly accumulate in ductwork during building. NADCA recommends cleaning ducts after any new construction or major renovation. Additionally, Clovis homes share the same San Joaquin Valley air quality challenges as the rest of the metro. Even with newer, tighter construction, HVAC systems pull outdoor air containing agricultural dust, wildfire particulates, and seasonal allergens. The advantage of newer Clovis homes is that their duct systems are generally better sealed and easier to clean, potentially reducing cost versus older Fresno homes with deteriorating flex ductwork. Expect to pay $350–$600 for a standard NADCA-quality cleaning of a newer home.
Methodology & Data Sources

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
  • California CSLB license database (cslb.ca.gov)
  • Google Business Profiles
  • Yelp
  • Angi / HomeAdvisor
  • BBB
  • Nextdoor
  • BuildZoom
  • American Lung Association State of the Air 2025
  • CARB (California Air Resources Board)

Exclusion criteria: A business is excluded from this directory if it uses a virtual office or PO Box as its only address with no verifiable operational presence; shows patterns consistent with lead-generation fronts (generic city-keyword domains, template websites, no owner identification); falsely claims NADCA certification not found in the NADCA directory; or advertises pricing below $100 for whole-house cleaning, which is a definitive bait-and-switch indicator in this market.

California-specific verification note: California requires a CSLB C-20 license for duct cleaning work exceeding $500 in labor and materials. We flag companies where a CSLB license number could not be independently confirmed and recommend verification at cslb.ca.gov before scheduling. California does not have a separate state mold remediation license — IICRC S520 certification and pollution liability insurance are the meaningful voluntary credentials for mold work.

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 the Fresno area that should be considered for inclusion, please contact us. We will verify the submission against our standard criteria before adding it.

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