Top 10 Air Quality Testing in Denver, CO
The best indoor air quality services in Denver, CO for 2026 include Apex Clean Air AC & Heating Repair (4.9), Roots Heating & Air (5), Heart Heating, Cooling, Plumbing & Electric (4.8). All test for allergens, mold, VOCs, and particulates and recommend targeted solutions.
Rex Environmental
EnvioCore | Environmental Testing
Integrity Environmental Testing - Denver
Airtestco Mold & Moisture Testing
Axium Home Inspections
RDS Environmental
Alta Environmental Colorado
BuildSafe Environmental, LTD.
Air Pollution Control Division
Montrose Air Quality Services
How We Ranked These Denver Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Denver market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does air quality testing cost in Denver?
Basic air quality testing in Denver costs $200-$500. Comprehensive testing (mold, radon, VOCs, allergens) costs $400-$1,000. Mold-only testing costs $150-$300.
What are signs of poor indoor air quality?
Stuffy or stale air, musty odors, excessive dust, condensation on windows, allergy symptoms that worsen indoors, headaches, fatigue, and respiratory issues. If symptoms improve when you leave the house, air quality may be the cause.
How can I improve indoor air quality?
Change HVAC filters every 1-3 months, add whole-house air purification ($500-$2,000), install UV germicidal lights in ductwork ($400-$800), use a whole-house humidifier/dehumidifier, seal ductwork, and ensure proper ventilation.