Houston runs on air conditioning 10 months a year, and that reality comes with a price. The average humidity here sits around 75%, and hurricane season brings flood water inside HVAC systems more often than most homeowners expect. Mold in your ductwork is not a rare thing in Houston. It’s a common problem that gets worse fast.
Here is why: dirty ducts have dust. HVAC mold has live spores that spread into every room each time your system turns on. In Houston’s damp climate, mold can reappear inside your air handler within weeks if the moisture problem stays unfixed. Texas recognizes the risk. Any mold removal job over 25 square feet requires a Texas Department of Licensing and Regulation (TDLR) Mold Remediation Contractor licence. Treating mold on coils, plenums, or air handlers requires a second licence, a Texas HVAC contractor licence. Both licences are required for complete, legal HVAC mold work.
This guide reviews 5 top-rated HVAC mold removal companies in Houston for 2026. Each company holds the state-required licences and certifications needed to perform the full scope of HVAC mold remediation in Texas. Some are family-owned local specialists; others are nationally backed franchises.
How to Select Top HVAC Mold Removal Services in Houston
Choosing the right company means confirming licences first, then checking certifications, and asking about moisture fixes before treatment starts.
- Texas TDLR Mold Remediation Contractor licence: Texas law makes a TDLR Mold Remediation Contractor (MRC) licence required for any mold job larger than 25 square feet, and checking this licence on the TDLR public database before booking protects you from unlicensed work that leaves you without recourse.
- Texas HVAC contractor licence for coil and plenum work: Treating mold inside HVAC parts, evaporator coils, supply plenums, air handler units, requires a separate Texas HVAC contractor licence from TDLR, and verifying the company holds this licence means they can legally access and treat your entire contaminated system.
- NADCA and IICRC certifications: NADCA certification shows a company cleans HVAC systems to the minimum professional standard for source removal, while IICRC AMRT (Applied Microbial Remediation Technician) certification proves technician-level mold remediation training, and choosing providers with both ensures your team knows both disciplines.
- Moisture source identification and treatment: HVAC mold comes back within weeks if the moisture source, blocked condensate drain, refrigerant leak, poor ventilation, is not found and fixed alongside the mold removal, and confirming your provider inspects and addresses moisture sources stops you from paying for a remediation that recurs.
- Post-remediation testing or clearance verification: A finished mold removal is not verifiable without clearance testing, so selecting a provider that performs or facilitates third-party clearance sampling ensures the job is objectively confirmed complete instead of self-reported.
Top-Rated HVAC Mold Removal Services in Houston for 2026
Below are 5 Houston HVAC mold removal companies that meet the licensing and certification requirements Texas law demands.
- Quality Air Duct Cleaning Houston
- Lone Star Pro Services
- Green Home Solutions Houston
- AdvantaClean of Houston West
- Power Vac America
Best HVAC Mold Removal Services in Houston
1. Quality Air Duct Cleaning Houston
- Accreditation: BBB Accredited (since 15 May 2024, A+ rated); IICRC Certified Firm; CEO Avraham Kempe; 20+ years serving Greater Houston residential and commercial clients.
- Location: Based in Spring, Texas; serves Greater Houston area; 8215 Long Point Road, Houston, TX (additional service address).
- HVAC mold services: HVAC mold cleaning, mold removal from air ducts and AC systems, attic mold cleaning, air duct cleaning; track-mounted machines; HEPA vacuums; organic and eco-friendly products only.
- Additional services: Attic cleaning, insulation, mold remediation (full property), dryer vent cleaning.
- Commitments: 170+ five-star Google reviews; 5-star rating from 96 reviews on Best Pick Reports; same-day service; all technicians fully licensed; free quotes; 100% satisfaction guarantee; upfront pricing with no hidden fees; financing options available.
Led by CEO Avraham Kempe with 20+ years of Houston experience, Quality Air Duct Cleaning Houston is a BBB A+ rated and IICRC Certified company delivering HVAC mold cleaning, air duct and AC mold removal, attic mold cleaning, full mold remediation, and attic insulation services using track-mounted machines, HEPA vacuums, and organic products for residential and commercial clients across Greater Houston. The company has 170+ five-star Google reviews, a 100% satisfaction guarantee, free quotes, and same-day service.
Best For: Houston homeowners and commercial clients who want a certified HVAC mold removal provider with 20+ years of local experience, organic products, same-day availability, and financing options for larger remediation projects.
Standout Feature: BBB A+ accreditation combined with IICRC Certification and 20+ years of Houston experience, delivering HVAC mold cleaning using organic products and track-mounted HEPA equipment, backed by a 100% satisfaction guarantee and same-day service.
2. Lone Star Pro Services
- Founded: Established 2012 (serving Houston); business address 13700 Veterans Memorial Dr, Ste 251, Houston, TX 77014; family-owned and operated.
- Licences: Texas TDLR Mold Remediation Contractor licence; Texas HVAC contractor licence (TDLR); both held at the same time, making it legally authorized for the full scope of HVAC mold removal in Texas.
- Certifications: NADCA certified; IICRC WRT (Water Damage Restoration Technician) and AMRT (Applied Microbial Remediation Technician) certified; MICRO certified; EPA Lead-Safe Firm; OSHA certified.
- Specialisations: CIRS-Level mold remediation; HVAC and air duct mold removal; mycotoxins and small particle cleaning; water damage mitigation and restoration; trusted by mold consultants, medical professionals, and environmental hygienists.
- Commitments: Free in-home estimates; flat-rate pricing; 1-year workmanship guarantee; eco-friendly methods; financing options; military discount available; preferred vendor for property managers and real estate professionals.
Founded in 2012 and based at 13700 Veterans Memorial Dr, Ste 251, Houston, TX 77014, Lone Star Pro Services is a family-owned Texas company holding both the TDLR Mold Remediation Contractor licence and the TDLR HVAC contractor licence, one of the few Houston companies legally authorized for the full scope of HVAC mold work. The company is NADCA, IICRC AMRT and WRT, MICRO, EPA Lead-Safe, and OSHA certified, specializing in CIRS-level mold remediation, HVAC and duct mold removal, mycotoxin and small particle cleaning, and working directly with mold consultants, medical professionals, and environmental hygienists.
Best For: Houston homeowners dealing with complex HVAC mold issues, including CIRS cases, mycotoxin contamination, or whole-system mold, who need a company holding both the Texas mold remediation and HVAC licences and trusted by medical and environmental professionals.
Standout Feature: Simultaneous Texas TDLR Mold Remediation and HVAC contractor licences, plus NADCA, IICRC AMRT/WRT, MICRO, EPA Lead-Safe, and OSHA certifications, making Lone Star Pro Services one of the most fully credentialed HVAC mold removal companies in Houston.
3. Green Home Solutions Houston
- Location: 13380 Telge Rd, Cypress, Texas; serves Greater Houston including Bellaire, Missouri City, and Sugar Land; licensed and certified technicians.
- Approach: Plant-based, EPA-registered proprietary fungicide with no harsh chemicals or VOCs; treats mold at the molecular level using enzymes that break down allergenic proteins in spores; remediation typically completed in 2–5 days.
- Standard: Follows ANSI/IICRC S520 Standard for Professional Mold Remediation and EPA guidelines; HEPA vacuums and air scrubbers; negative air machines and containment used to prevent cross-contamination.
- Services: HVAC and air duct mold removal, mold remediation, indoor air quality testing, odor removal, crawl space encapsulation, duct cleaning, disinfection, and indoor probiotic air purification.
- Post-remediation: Third-party clearance sampling referral available after treatment; little to no demolition in most cases; post-treatment testing to confirm successful removal.
Green Home Solutions Houston, based at 13380 Telge Rd, Cypress, TX and serving the entire Houston area, uses a proprietary EPA-registered, plant-based fungicide free of harsh chemicals and VOCs to remediate HVAC mold and air duct contamination following ANSI/IICRC S520 and EPA protocols, typically completing projects in 2–5 days with little to no demolition required. Services include HVAC and air duct mold removal, indoor air quality testing, odor removal, crawl space encapsulation, and post-treatment clearance testing facilitation.
Best For: Houston homeowners who want a non-toxic, eco-friendly HVAC mold removal approach following ANSI/IICRC S520 and EPA standards with a fast 2–5 day project timeline and no harsh chemical exposure for children, pets, or sensitive occupants.
Standout Feature: A proprietary EPA-registered, plant-based fungicide that breaks down mold at the molecular level without harsh chemicals or VOCs, completing most HVAC mold remediation projects in 2–5 days with little to no demolition, verified by third-party clearance testing.
4. AdvantaClean of Houston West
- Founded: AdvantaClean brand founded 1994 (South Florida, post-Hurricane Andrew) by Jeff Dudan; Houston West franchise owned by Fabricio Cardenas; located at 20770 Westheimer Pkwy, Ste 506, Katy, TX 77450; 24-hour emergency availability.
- Certifications: IICRC Certified (Water Damage Restoration, Structural Drying); NADCA Certified (Professional Air Duct Cleaning); Texas TDLR Mold Remediation Contractor (MRC) licence; free project estimates; third-party financing offered.
- Services: HVAC and air duct mold removal, mold inspection and testing, mold remediation, water damage restoration and emergency extraction, dryer vent cleaning, crawl space encapsulation, coil cleaning, waterproofing.
- Coverage: Serves Katy, Spring, and Greater Houston communities; 24/7 emergency availability; residential, commercial, and governmental clients.
- Network: Part of AdvantaClean national franchise (230+ territories, 37 states); acquired by Home Franchise Concepts (January 2019); National Partner of St. Jude Children’s Research Hospital.
AdvantaClean of Houston West is owned and operated by Fabricio Cardenas from 20770 Westheimer Pkwy, Ste 506, Katy, TX 77450, part of the AdvantaClean national franchise founded in 1994, holding IICRC, NADCA, and Texas TDLR Mold Remediation Contractor certifications. The franchise delivers HVAC mold removal, air duct cleaning, mold inspection and testing, water damage restoration, crawl space encapsulation, and coil cleaning with 24/7 emergency availability and third-party financing.
Best For: Katy and Houston West homeowners who want a nationally backed, IICRC and NADCA certified HVAC mold removal franchise with 24/7 emergency availability, combining local family-owned service with a brand founded on post-hurricane remediation experience since 1994.
Standout Feature: The backing of AdvantaClean’s national franchise network founded in 1994 with IICRC, NADCA, and Texas MRC credentials, combined with 24/7 emergency availability, third-party financing, and a local owner-operator model serving Katy and Greater Houston West.
5. Power Vac America
- Founded: Established 1991; located at 6613 Springer St, Houston, TX 77087; NADCA member since 4 October 1991; one of the largest air duct cleaning companies in Texas.
- Licences and certifications: Texas AC contractor’s licence TACLA 28012 E; NADCA ASCS-certified personnel (Doug Long, Brian Long, Henry Hodges, Matthew Minter, Ricky Ryan); members of NADCA, IAQA, MCA, ACCA, ACOE, USGBC; BBB A+ accredited; ISNetworld A+ safety rating.
- Government contracts: GSA Contract Holder; TXMAS Contract Holder, authorized for federal and Texas state government HVAC cleaning procurement.
- HVAC mold services: HVAC mold remediation (residential and commercial); air duct mold removal; commercial coil cleaning; post-construction air duct cleanup; HVAC robotic duct sealing.
- Coverage: Residential: Houston and surrounding area; commercial and industrial: all of Texas including Austin, San Antonio, Dallas, and Fort Worth; marine: Houston and Gulf Coast area.
Established in 1991 and headquartered at 6613 Springer St, Houston, TX 77087, Power Vac America has held NADCA membership continuously since 4 October 1991 with five NADCA ASCS-certified technicians and Texas AC licence TACLA 28012 E, making it one of Houston’s most credentialed and longest-running HVAC mold and air duct cleaning companies. The company serves residential, commercial, industrial, marine, and government clients across Texas, holds GSA and TXMAS government procurement contracts, and carries an ISNetworld A+ safety rating for industrial work.
Best For: Houston residential homeowners, commercial facility managers, industrial operators, and government clients who need NADCA-certified HVAC mold remediation from a company with 30+ years of continuous operation, Texas HVAC licensing, and government procurement contracts.
Standout Feature: NADCA membership held continuously since 4 October 1991 with five NADCA ASCS-certified technicians, Texas AC licence TACLA 28012 E, and GSA and TXMAS government contracts, making Power Vac America one of the most credentialed and longest-established HVAC mold removal companies in Houston.
Factors to Consider When Choosing an HVAC Mold Removal Service in Houston
Verify Both the Texas Mold Remediation Licence and the HVAC Licence Before Hiring
Texas law requires a TDLR Mold Remediation Contractor (MRC) licence for mold removal jobs over 25 square feet, and a separate TDLR HVAC contractor licence for any work on coils, plenums, and air handler units. Confirming both licences are current on the TDLR public search database before booking ensures the company is legally authorized to treat every component of your contaminated HVAC system, not just the accessible duct runs.
Confirm the Provider Will Address the Moisture Source, Not Just the Visible Mold
HVAC mold grows because of a moisture source like a blocked condensate drain, a refrigerant leak causing coil sweating, inadequate attic ventilation, or post-flood ductwork saturation. A remediation that removes mold without identifying and resolving the moisture source will almost always result in mold returning within weeks, making the initial spend largely wasted without addressing the underlying cause.
Understand the Difference Between HVAC Mold Removal and Standard Duct Cleaning
Standard air duct cleaning removes dust and debris from duct runs and is typically appropriate as routine maintenance every 2–5 years. HVAC mold removal requires mold-specific containment, HEPA-filtered negative pressure, EPA-registered fungicide treatment, and post-remediation verification. Confirming that the provider is quoting a full mold remediation scope rather than an enhanced duct clean ensures the treatment matches the severity of the contamination.
Ask Whether Post-Remediation Clearance Testing Is Included or Facilitated
A mold removal project is not objectively complete without clearance testing. Air or surface samples collected after remediation and sent to an independent microbial laboratory confirm that mold levels have returned to normal fungal ecology. Selecting a provider that either performs this testing or explicitly facilitates a third-party clearance ensures the remediation outcome is documented and verifiable rather than self-reported.
Get a Written Scope of Work and Fixed Price Before Authorizing Any Treatment
HVAC mold removal costs vary significantly based on the extent of contamination, the number of system components affected, and whether ductwork replacement is needed. Requiring a written scope of work that specifies every component to be treated, the containment method, the products to be used, and the total price before signing ensures there are no surprises when the job is completed and protects against scope expansion without prior approval.
Final Thoughts
Before hiring any HVAC mold removal company in Houston, verify two separate licences on the TDLR public database: the Texas Mold Remediation Contractor licence and the Texas HVAC contractor licence. Without both, the company is not legally authorized to perform the complete scope of HVAC mold work. Always demand a written scope of work and fixed price before any treatment begins. Arrange for post-remediation clearance testing by an independent party after the work is complete. Resolving the moisture source is as important as treating the mold. Skipping this step means the problem will return.
