Indoor air quality
Mold Remediation & HVAC Mold Prevention in Chicago
Mold in your ductwork or HVAC system is a health hazard — and a sign your system needs attention. D's Air identifies, cleans, and prevents mold at the source.
Mold inside your home or business is a serious air-quality concern that requires professional treatment. At D's Air & Heating, we provide mold remediation focused on HVAC systems, ductwork, basements, attics, and moisture-affected areas throughout Chicago. Mold spreads quickly through air movement, especially when connected to duct systems, and can create health risks, musty odors, and structural damage. Our certified technicians perform detailed inspections, moisture detection, and safe removal procedures to restore clean, healthy air. For homes that also need ductwork cleaned after remediation, we offer residential duct cleaning as a follow-up service.
Our mold remediation process includes identifying moisture sources, collecting mold samples, sending samples for certified lab testing, cleaning affected surfaces, applying mold-kill solutions, and sealing treated areas to prevent regrowth. We inspect ductwork, air handlers, evaporator coils, blower compartments, and connected HVAC components to ensure mold is not circulating through the system. Whether the mold is caused by water leaks, condensation, poor ventilation, or previous DIY attempts, we provide a clear remediation plan and professional results. Commercial properties with large duct systems can also benefit from our commercial duct cleaning and sanitization services.
We also offer preventive solutions, including dehumidifiers, improved ventilation, duct cleaning, sanitization, and long-term moisture control. With professional mold remediation from D's Air & Heating, your home or business will benefit from cleaner air, safer conditions, and restored indoor comfort. Contact us to schedule a mold inspection or remediation estimate today.
Is Mold Growing in Your HVAC System?
- Musty or earthy smell when the system runs
- Visible dark spots near vents or on the air handler
- Increased allergy or asthma symptoms indoors
- Recent water leak, flooding, or high humidity
- System hasn't been cleaned in 3+ years
Not sure if you have mold?
A musty smell when your system runs is the most common sign. Call us — we'll inspect your system and give you a straight answer.
(773) 940-0965What We Do
HVAC Mold Inspection
Included with service callWe inspect your air handler, coils, drain pan, and ductwork for visible mold growth and moisture conditions that promote it.
Duct Cleaning with Sanitization
$399Full duct cleaning using Rotobrush agitation plus EPA-registered antimicrobial sanitizer applied to all duct surfaces.
Coil & Drain Pan Cleaning
$149Evaporator coil and drain pan cleaning removes mold colonies and restores proper drainage to prevent regrowth.
UV Air Purification Install
$595 installedLennox UV germicidal lights installed in the air handler kill mold spores, bacteria, and viruses before they circulate through your home.
Whole-Home Dehumidification
$895 installedControlling humidity below 50% is the single most effective way to prevent mold. We install whole-home dehumidifiers tied to your HVAC system.
Stop It Before It Starts
Prevention Is the Best Cure
- Change filters every 1–3 months — clogged filters trap moisture
- Keep indoor humidity below 50% year-round
- Schedule annual duct cleaning and coil inspection
- Fix any condensate drain clogs immediately
- Install a UV light or whole-home air purifier
Smell Something Musty? Don't Wait.
Mold spreads fast in ductwork. Call D's Air today — we'll inspect your system and give you a straight answer.
Why Chicago Homeowners Trust D's Air & Heating
Licensed & Insured
IL License #2183457
Serving Chicago
Since 2009
Authorized Dealer
Multiple Brands
No Contracts
Ever — Guaranteed
Permit Pulled
Every Installation
Professional Standards
Code-Compliant Work
EPA Certified
Mainstream Engineering
R-410A Certified
Mainstream Engineering
Why Choose D's Air & Heating, Inc.?
Chicago's trusted HVAC company since 2009 — licensed, insured, and committed to honest workmanship on every job.
Experience Since 2009
D's Air & Heating has served Chicago homeowners and businesses since 2009. Over 15 years of local HVAC experience means we've seen every type of system, every Chicago building configuration, and every challenge the city's climate presents.
Manufacturer-Trained Technicians
Our technicians receive ongoing manufacturer training and certification. We install Lennox, Goodman, Amana, Daikin, Sinclair, Weil-McLain, Peerless, and other leading brands — and we know each system inside and out.
Licensed, Insured & Permitted
D's Air & Heating holds Illinois HVAC License #2183457 and carries full liability insurance. We pull City of Chicago permits on every installation — protecting you legally and ensuring the work meets code.
Honest Recommendations
We tell you what you need — not what generates the highest invoice. If your system can be repaired cost-effectively, we'll say so. If replacement makes more sense, we'll explain exactly why. No pressure, no upselling.
Local Chicago Expertise
We know Chicago's housing stock — two-flats, greystones, bungalows, vintage buildings with steam heat, modern construction with forced air. We size and install equipment for the specific demands of Chicago homes and Chicago winters.
Long-Term Customer Support
Our relationship doesn't end at installation. We register your equipment for warranty, remain available for follow-up questions, and provide ongoing maintenance to keep your system running at peak efficiency for years.
Indoor Air Quality in Chicago — What Homeowners Should Know
Why Indoor Air Quality Matters
The EPA estimates that indoor air is 2–5 times more polluted than outdoor air. Chicago homes — especially older buildings with limited ventilation — accumulate dust, allergens, volatile organic compounds (VOCs), combustion byproducts, and biological contaminants. Modern HVAC systems can address all of these with the right equipment.
Air Filtration — MERV Ratings Explained
MERV (Minimum Efficiency Reporting Value) rates how effectively a filter captures particles. Standard 1-inch filters are MERV 1–4 and capture only large particles. MERV 8 filters capture most dust and pollen. MERV 13 filters capture fine particles including bacteria and smoke. High-efficiency media filters (MERV 13–16) provide hospital-grade filtration without restricting airflow.
Humidity Control
Chicago winters are extremely dry — indoor relative humidity can drop below 20% when it's cold outside. Low humidity causes dry skin, static electricity, wood shrinkage, and increased susceptibility to respiratory infections. A whole-home humidifier connected to your HVAC system maintains 35–45% relative humidity automatically. In summer, a whole-home dehumidifier prevents mold growth and improves comfort.
UV Air Purification
UV-C light systems installed in the air handler kill bacteria, viruses, and mold spores as air passes through. Lennox PureAir and similar systems combine UV-C with activated carbon filtration to address both biological contaminants and chemical pollutants (VOCs, odors). These systems are particularly valuable for households with allergy or asthma sufferers.
What to Expect From Your D's Air IAQ Installation
Assessment
We evaluate your current system, identify IAQ concerns, and recommend targeted solutions.
Equipment Selection
We recommend the right combination of filtration, humidification, and purification for your home.
Installation
Our technicians install IAQ equipment integrated with your existing HVAC system.
Airflow Verification
We measure static pressure and airflow after installation to confirm the system is not restricted.
Customer Training
We walk you through filter replacement schedules, humidity settings, and UV lamp replacement intervals.
Follow-Up
We remain available for questions and annual maintenance of your IAQ equipment.
D's Air IAQ Installation Standards
- IAQ assessment — identify specific pollutants and sources
- Filter upgrade recommendation based on system airflow capacity
- Humidifier sized to building volume and infiltration rate
- UV system positioned for maximum exposure of air stream
- ERV/HRV sized for building volume and occupancy
- All IAQ equipment integrated with existing HVAC controls
- Airflow verified after any filter upgrade — static pressure checked
- Equipment registered for full manufacturer warranty
What Our Customers Say
Based on Google Reviews — D's Air & Heating, Inc.
Marcus T.
Furnace Replacement
"D's Air & Heating did an outstanding job replacing my furnace. Darryl was professional, on time, and explained everything clearly. The installation was clean and the system works perfectly. Highly recommend."
Latoya W.
Boiler Repair
"Called D's Air when my boiler stopped working in January. They came out the same day, diagnosed the problem quickly, and had it running again within hours. Fair pricing and excellent service."
James R.
AC Installation
"Installed a new central AC system for us this summer. The crew was respectful of our home, cleaned up after themselves, and the system runs quietly and efficiently. Very satisfied."
Ready to Work With Chicago's Trusted HVAC Company?
D's Air & Heating, Inc. — Serving Chicago Since 2009. Licensed, Insured, No Contracts.