JDN Heating & Air Conditioning Systems

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Claim This BusinessAbout JDN Heating & Air Conditioning Systems
JDN Heating & Air Conditioning Systems has kept northern DuPage County comfortable since 1988, earning a near-perfect 4.9-star rating across 113 verified reviews. Based in Bartlett, this licensed contractor serves residential and commercial clients across the western suburbs including Hanover Park, Carol Stream, Schaumburg, and Wheaton. Whether you need a quick AC repair before a summer heat wave or a complete system replacement, their team responds around the clock every day of the year.
What distinguishes JDN is their distributor-level inventory of premium equipment brands. As a Trane dealer carrying the full catalog of air cleaners, conditioners, and furnaces alongside Aprilaire air quality systems and Mitsubishi ductless mini-splits, they can match exactly the right system to your home's square footage and cooling load. Their website showcases a transparent estimating process with options explained without pressure, and every installation includes cleanup that leaves homes "immaculate" according to recent customers. This combination of brand selection and conscientious service explains their decades-long standing in the community.
Two recent reviews name the technicians who solved problems other contractors missed. When Rachel Moody discovered rust and condensation on her furnace exhaust pipes, Mike and Nathan correctly identified a blockage that turned out to be a squirrel nest blocking the vent, a diagnosis no other contractor had attempted in eighteen months. Another reviewer describes calling on a frigid January Saturday when heat failed in their rental property, and JDN answered immediately, drove to Golconda, and restored heat the same day. These scenarios illustrate why so many reviewers describe JDN as their permanent HVAC provider.
What Customers Say
One hundred thirteen reviewers award an exceptional 4.9 average rating, with multiple five-star reviews praising the same-day emergency response JDN provides. Several reviews emphasize transparent pricing and careful cleanup, distinguishing this contractor from others who leave worksites messy or present unexpected charges.
Working Hours
| Sunday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
AC Repair & Maintenance
Diagnostic services, refrigerant recharge, andPreventive tune-ups for all air conditioning brands with 24/7 availability.
AC Replacement & New Installation
Complete air conditioner installation including Trane and Mitsubishi ductless mini-split systems sized to home square footage.
Furnace Repair & Maintenance
Winter emergency furnace repairs, heat exchanger inspection, and annual heating system checkups.
Furnace Replacement
New furnace installation with options ranging from single-stage to two-stage Trane units for optimal efficiency.
Heat Pump Systems
Year-round heating and cooling solutions including Mitsubishi variable-speed heat pump installations.
Commercial HVAC
Installation, maintenance, and repair services for commercial buildings and business facilities.
Indoor Air Quality Products
Aprilaire air cleaners, Honeywell controls, and Trane air purification products for healthier home air.