Best Duct Cleaning Companies in San Antonio, TX
What to look for in Duct Cleaning in San Antonio
Duct cleaning is the most scam-prone HVAC service category — "$99 whole-home" bait-and-switch, blow-and-go visits that move dust without removing it, fake-mold scares used to upsell thousand-dollar sanitization. The pros worth hiring either hold NADCA certification (the industry standard, requires demonstrating process competence) or do this work in-house with HEPA-filtered negative-pressure rigs — not subbed to a carpet-cleaning shop.
- Duct work specialization. Provider lists duct cleaning, sealing, or testing as a distinct service line. The bait operators don't — they list "duct cleaning" only when they bid for it.
- Duct testing capability. If a shop can test duct leakage (Duct Blaster, blower door), they have the diagnostic mindset that separates real cleaning from cosmetic spray-and-vacuum.
- NADCA membership. National Air Duct Cleaners Association membership is the industry's primary process-quality standard (ACR Standard 2021). Held by a relatively small fraction of duct-cleaning shops — most operators in the residential market are not members.
Verify before you book
- Active NADCA certification (registry lookup at nadca.com is the verification step) — we accept self-claimed.
- Equipment used (HEPA-filtered negative-pressure rig vs portable vacuum) — ask before scheduling and request photos if you want to be sure.
- Whether "sanitization" upsells use EPA-registered products — most don't; ask for the product name and registration number.
Duct Cleaning in San Antonio: standards + transparent process
Duct cleaning quality is determined by the equipment (HEPA-filtered negative-pressure rigs, not shop vacs) and the process (whole-system, not duct-only). NADCA certification is the industry standard. Here is what each of the 15 pros below publishes: In Texas, HVAC contractors must hold an active TDLR TACLA license — ask for the number and verify on tdlr.texas.gov before paying.
Top picks
- Duct testing: ✓
- NATE: ✓
- Years: 30+
Google 4.8★ (16,780+)Yelp 2.1★ (305+)BBB 2.37★ (75+)
- Duct testing: ✓
- Years: 35+
Google 4.9★ (2,270+)BBB 4.96★ (165+)
- Duct testing: ✓
- Years: 40+
Google 4.8★ (2,180+)BBB 3.67★ (6)
- Duct testing: ✓
- Years: 10+
Google 4.9★ (1,005+)
- Duct testing: ✓
- NATE: ✓
- Years: 25+
Google 4.9★ (585+)BBB 5.0★ (2)
- Duct testing: ✓
- Years: 8+
Google 5.0★ (890+)BBB 5.0★ (6)
- Years: 8+
Consistently strong customer feedback (4.9★ from 1,405+ Google reviews; 3.0★ from 6 BBB reviews).
Google 4.9★ (1,405+)BBB 3.0★ (6)
- Duct testing: ✓
- NATE: ✓
- Years: 10+
Google 4.9★ (495+)
- Duct testing: ✓
- Years: 85+
Google 4.8★ (10,645+)
- Duct testing: ✓
- Years: 15+
Google 4.9★ (630+)
- Years: 50+
Consistently strong customer feedback (4.9★ from 745+ Google reviews; 4.98★ from 40+ BBB reviews).
Google 4.9★ (745+)BBB 4.98★ (40+)
- Years: 50+
Consistently strong customer feedback (4.9★ from 495+ Google reviews; BBB grade A+).
Google 4.9★ (495+)BBB A+
- Duct testing: ✓
- Years: 65+
Google 4.9★ (735+)BBB A+
- Years: 45+
Consistently strong customer feedback (4.7★ from 3,995+ Google reviews; 3.58★ from 15+ BBB reviews).
Google 4.7★ (3,995+)BBB 3.58★ (15+)
- Years: 35+
Consistently strong customer feedback (4.9★ from 295+ Google reviews).
Google 4.9★ (295+)
Typical Duct Cleaning costs in San Antonio, TX (2026)
Last updated
Estimated ranges for San Antonio, TX. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| Duct cleaning (whole-home) | $300–$690 |
| Dryer vent cleaning (professional) | $85–$215 |
| Evaporator coil cleaning (in-place) | $130–$390 |
| Duct sealing (Aeroseal or similar) | $1,300–$3,000 |
Avoid the $99 bait-and-switch: NADCA (the National Air Duct Cleaners Association) warns that ultra-low-cost “whole house” duct cleaning ads typically cover only a portion of the system — excluding the air handler, blower, coils, and registers where most contamination sits. A legitimate NADCA-standard clean for an average home runs $450–$1,000 and takes 2–4 hours with a two-person crew. Ask if the quote includes the air handler / blower assembly and request before/after photos.
What You Need to Know Before Scheduling HVAC Service in San Antonio
- Is duct cleaning actually necessary, or is it always upsell?
- Necessary after rodent infestation, post-renovation construction dust, visible mold growth, or 10+ years since last cleaning in a high-pollen or dusty area. Skip "annual cleaning" recommendations — the NADCA 2025 ACR Standard explicitly notes routine annual cleaning isn't evidence-supported.
- How do I avoid the "$99 whole-home duct cleaning" scam shops?
- Ask for NADCA certification, a written scope that itemizes supply + return + main trunk, and confirmation they use source-removal (vacuum-out) rather than blow-and-go fogging. The $99 ads almost always upsell to $800+ on-site for "mold treatment" the home doesn't need.
- Typical HVAC pricing in San Antonio, TX: what should I budget?
- Duct cleaning typically runs $300–$690, and duct sealing runs $1,300–$3,000 in San Antonio, Texas. See the HVAC pricing table on this page for the full per-service breakdown.