Indoor Air Quality Services in Greater St. Louis
Breathe easier with whole‑home indoor air quality services delivered by local, certified HVAC pros. Air Comfort Service, Inc. has served the St. Louis metro since 1969 and is a Carrier Factory Authorized Dealer, honored with the President’s Award nine times. We treat your home with white‑glove care and handle required permits and paperwork. Serving the Greater St. Louis Area, including St. Louis, St. Charles, and Chesterfield. Ready for cleaner air? Call 314‑819‑0028 or ask about $55 OFF IAQ installations with code 55IAQ24.
Each image is a real worksite photo, reflecting the quality and dedication in every project.
Special Offers & Promotions
Free estimate for whole-home humidifier installation and professional sizing/installation.
- professional sizing
- installation
$55 OFF Any Indoor Air Quality Product Installation
- unknown
Why Choose Us
What Our Customers Say
"Ethan installed an Aeros Air Scrubber... Prompt, courteous and professional."
"Logan was very kind and professional checking and preparing our heating system."
"Josh did a great job checking and tuning our HVAC systems."
Answers to Common Questions
View All FAQsHow much does whole-house humidifier installation typically cost?
Whole-house humidifier installation cost is finalized after an in-home evaluation of your HVAC system and the best placement for the unit. The biggest driver is the humidifier type and how it connects to your furnace and ductwork. We install whole-home humidifiers across the St. Louis metro, including many homes near Saint Peters, and we offer free estimates for whole-home humidifier installation. From a technician’s view, tight furnace closets or finished basements can add time for drains, water lines, or power, which affects the total more than people expect.
Typical price factors we confirm on site include:
- Technology level (bypass, fan-powered, or steam)
- Needed add-ons (humidistat integration, dedicated electrical, water line, drain)
- Duct or placement modifications for proper airflow
- Access and labor time in attics, closets, or finished spaces
Schedule an in-home assessment to get a firm, written quote before any work begins. <br/> Updated: 2026-03-11 <br/> Need help in Saint Peters, MO? Call 3148148455 or book online.
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<br> WUpdated: 2026-02-13 </br> <br> W </br>We do not provide air duct cleaning at this time. If you're interested in air duct sealing, please call us for a free estimate.
Need help in O'Fallon, MO? Call 3148148455 or book online.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnTUNJODZlZEFnEAE!2m1!1s0x0:0xaf773709578aacc6!3m1!1s2@1:CIHM0ogKEICAgMCI86edAg%7CCgsIwYrAvwYQiOOZbg%7C[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURlc0oyODF3RRAB!2m1!1s0x0:0xaf773709578aacc6!3m1!1s2@1:CIHM0ogKEICAgIDesJ281wE%7CCgwIl_zYmQYQ0NryogE%7C?hl=en-US[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnTURJeGVpek9REAE!2m1!1s0x0:0xaf773709578aacc6!3m1!1s2@1:CIHM0ogKEICAgMDIxeizOQ%7CCgwI-ODkvwYQuO_45AE%7C[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURmdzlXY01BEAE!2m1!1s0x0:0xaf773709578aacc6!3m1!1s2@1:CIHM0ogKEICAgIDfw9WcMA%7CCgwIyt-AvAYQsIGspAE%7C?hl=en-GB[4] https://www.aircomfortservice.com/heating/furnace-repair/[5] https://www.aircomfortservice.com/specials/[6] https://www.aircomfortservice.com/air-quality/humidifiers/[7] https://www.aircomfortservice.com/heating/[8] https://www.aircomfortservice.com/hvacmaintenance/[9] https://www.aircomfortservice.com/our-service-areas/ballwin-hvac/[10] https://www.aircomfortservice.com/emergencyac/[11] https://www.aircomfortservice.com/our-service-areas/chesterfield-mo/How much does it cost to install UV lights in HVAC systems?
Installing UV lights in an HVAC system does not have a single set price; Air Comfort Service, Inc. provides a firm quote after an on-site evaluation of your equipment and installation access. Most of the cost usually comes from the lamp type and how easily a technician can mount and power the light near the coil or in the duct. We routinely install UV lamps in homes throughout the St. Louis metro. HVAC UV Lamps require little maintenance; just replace the lamp bulbs annually. If there’s visible mold on the coil or persistent odors, sooner installation is wise; on tight air handlers, adding a small access port can make future bulb changes faster.
- Price varies by: single vs. dual-lamp systems and brand/technology.
- Access and retrofit difficulty at the coil or supply plenum.
- Electrical needs, controls, and any added mounting hardware.
- Number of HVAC systems or lamps needed per system.
Ask about current savings; $55 OFF any indoor air quality product installation (code 55IAQ24) may apply. Schedule an in-home assessment to confirm placement and a precise quote. <br/> Updated: 2026-03-31 <br/> Need help in Saint Peters, MO? Call 3148148455 or book online. "Ethan installed an Aeros Air Scrubber on my home HVAC system today. Prompt, courteous and professional. Looking forward to better indoor air quality. I have been a customer of Air Comfort Service for over 26 years. Great service always!" — Mike S.
[0] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMtczVhcV93RRAB!2m1!1s0x0:0xaf773709578aacc6!3m1!1s2@1:CIHM0ogKEICAgIC-s5aq_wE%7CCgwIx_XAmwYQyJPVywE%7C?hl=en-US[1] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURQN2R6dVF3EAE!2m1!1s0x0:0xaf773709578aacc6!3m1!1s2@1:CIHM0ogKEICAgIDP7dzuQw%7CCgwIitzCugYQwPe2uAE%7C?hl=en-GB[2] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURmdzlXY01BEAE!2m1!1s0x0:0xaf773709578aacc6!3m1!1s2@1:CIHM0ogKEICAgIDfw9WcMA%7CCgwIyt-AvAYQsIGspAE%7C?hl=en-GB[3] https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURmZ19hRnFBRRAB!2m1!1s0x0:0xaf773709578aacc6!3m1!1s2@1:CIHM0ogKEICAgIDfg_aFqAE%7CCgwIlaKAvAYQsMesuAE%7C?hl=en-GB[4] https://www.aircomfortservice.com/air-conditioning/[5] https://www.aircomfortservice.com/specials/[6] https://www.aircomfortservice.com/heating/[7] https://www.aircomfortservice.com/emergencyac/[8] https://www.aircomfortservice.com/hvacmaintenance/[9] https://www.aircomfortservice.com/our-service-areas/maryland-heights-hvac/[10] https://www.aircomfortservice.com/our-service-areas/clayton-hvac/[11] https://www.aircomfortservice.com/our-service-areas/ballwin-hvac/How much does it cost to install UV light in an HVAC system?
The cost to install a UV light in an HVAC system is variable and is confirmed after an on-site evaluation. The biggest cost drivers are the UV lamp type (coil- or duct-mounted, single- or dual-lamp) and how accessible your air handler is for safe installation. HVAC UV Lamps require little maintenance; just replace the lamp bulbs annually. We install and service indoor air quality solutions across the St. Louis metro, so quotes reflect typical local home layouts and installation conditions. For added savings, we offer $55 OFF any indoor air quality product installation (limited-time offer, conditions apply). On most systems, placing the lamp to wash the evaporator coil gives the best payoff because that’s where biofilm tends to grow.
Schedule an in-home assessment to get a firm installed price and confirm the best placement. <br/> Updated: 2026-02-13 <br/> Need help in O'Fallon, MO? Call 3148148455 or book online. "Ethan installed an Aeros Air Scrubber on my home HVAC system today. Prompt, courteous and professional." — Mike L.
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Helpful Tips & Maintenance Advice
View All BlogsArnold, MO HVAC: Indoor Air Quality — UV Bulb Repair
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If your air purifier not working has you breathing stale or musty air, start here. This guide walks you through quick diagnostics, UV bulb checks, safe bulb replacement, and when to call a pro. We cover in‑duct UV lights and whole‑home systems found on many St. Lou...
Eureka, MO Indoor Air Quality Services — HVAC Pros
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Where We Work
What areas do you serve for indoor air quality services?
We serve the Greater St. Louis Area, including St. Louis, St. Charles, and Chesterfield. See the full list of communities we cover below.


