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St. Louis, Missouri · Ductwork & IAQ

Ductwork & indoor air quality pros in St. Louis, MO

4 ductwork & indoor air quality pros in St. Louis, out of 142 HVAC and plumbing businesses the Registry lists there. Ranked by Registry Score, owner-confirmed records first.

Pros
4
Avg. score
62.8
Scored
4

Summary

Data last updated

As of October 14, 2026, the ProComfort Registry lists 4 ductwork & indoor air quality pros in St. Louis, Missouri. Most-listed specialties: air conditioning (1). 4 have enough public signals for a Registry Score, averaging 62.8 out of 100; 1 scores 70 or higher. Together they hold 448 public reviews on Google, Yelp and Facebook. The highest-scored is 1St Global Air Duct Cleaning, at 88 out of 100. 3 are Featured for 2026. View 1St Global Air Duct Cleaning.

Counts come straight from the Registry's records. How the Registry Score works

Showing 1–4 of 4

Ductwork & indoor air quality pros in St. Louis: at a glance

How many ductwork & indoor air quality pros are in St. Louis, Missouri?
As of October 14, 2026, the ProComfort Registry lists 4 ductwork & indoor air quality pros in St. Louis, Missouri.
Who is the highest-scored ductwork and indoor air quality pro in St. Louis, Missouri?
By Registry Score, 1St Global Air Duct Cleaning (St. Louis, MO) ranks first at 88 out of 100, among 4 scored businesses averaging 62.8. The score combines public reviews (50 points), digital presence (30) and reach (20); nobody can pay for a higher score.
Which companies are featured in St. Louis, Missouri for 2026?
ProComfort Registry features 1St Global Air Duct Cleaning. Featured companies are selected editorially from public reviews and track record; listings and rankings are never sold.
How are ductwork & indoor air quality pros in St. Louis, Missouri ranked?
By Registry Score (0-100, from public reviews, digital presence and reach), with records confirmed by their owners listed first. The full method is at https://procomfortregistry.online/methodology.

What this list includes: businesses whose public category or name points to ducts, ventilation, sheet metal or indoor air quality. Tags come from each business's public category and name, so a company can appear under several trades. Ductwork & indoor air quality pros across the US