Best Duct Cleaning Companies in Charleston, SC
Duct Cleaning in Charleston: 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 3 pros below publishes: Verify your state's HVAC contractor license through the state licensing board before paying a deposit.
Top picks
Service Experts Charleston★ Best for Ductwork & Sealing
Duct Cleaning score: 3.1
Vouched Score: 88/100
- Years: 90+
Consistently strong customer feedback (4.9★ from 6,560+ Google reviews; 2.9★ from 85+ Yelp reviews).
Google 4.9★ (6,560+)Yelp 2.9★ (85+)
- NATE: ✓
- Years: 10+
Google 4.9★ (1,305+)Yelp 3.8★ (45+)
- Years: 50+
Consistently strong customer feedback (4.9★ from 880+ Google reviews; 3.7★ from 20+ Yelp reviews).
Google 4.9★ (880+)Yelp 3.7★ (20+)
Typical Duct Cleaning costs in Charleston, SC (2026)
Last updated
Estimated ranges for Charleston, SC. Actual cost varies with home size, equipment, and scope — always request a written quote for your job.
| Service | Typical range |
|---|---|
| Duct cleaning (whole-home) | $305–$695 |
| Dryer vent cleaning (professional) | $85–$220 |
| Evaporator coil cleaning (in-place) | $130–$390 |
| Duct sealing (Aeroseal or similar) | $1,300–$3,050 |
Why Charleston's humid summers make choosing the right "HVAC" system urgent
Charleston's hot, humid summers and coastal salt air accelerate HVAC wear. Homeowners searching for the best HVAC companies in Charleston, SC should prioritize licensed contractors with strong maintenance and emergency repair experience for humidity and salt‑air protection. Homeowners searching for best hvac companies in charleston sc should prioritize licensed contractors with strong maintenance and emergency repair experience.
Which Charleston HVAC questions do locals actually ask before booking a tech?
- 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.
- How do I find a contractor who improves humidity control and indoor air quality in Charleston homes?
- Look for providers who list dehumidification strategies, whole-home filtration, and variable-speed systems in service descriptions. Check reviews mentioning reduced indoor humidity and evidence of IAQ installs in neighborhoods like Downtown and West Ashley. Request manufacturer or technician credentials for IAQ work.
- When should a Charleston homeowner schedule duct cleaning or ventilation updates because of mold and humidity?
- Schedule duct inspection when occupants notice musty odors, visible mold, or persistent humidity problems despite working AC. Duct cleaning and ventilation upgrades pair well with dehumidification and filtration work. Plan this before summer peaks to improve comfort and indoor air quality.
- How do I get a quote from these HVAC companies?
- Submit one request on this page and we send it to the vetted HVAC pros in Charleston, SC listed here. They send quotes back — no obligation.