Chicago's Authorized Lennox Dealer — Based Here, Ready When You Need Us
Don't let cost delay a repair or install that can't wait. Ask us about financing.
Authorized Lennox dealer (also Carrier & Green authorized)
Family-Owned Since 2009
EPA Certified Technicians
4.8★ Google Rating · 90+ Reviews
Every System, One Authorized Lennox Dealer
Chicago's housing stock runs the full range — vintage two-flats with steam boilers, newer construction with heat pumps, commercial buildings with rooftop units that haven't been touched in years. We service all of it. As an authorized Lennox dealer, we install and service equipment built to perform through Chicago winters and Chicago summers, with the manufacturer backing to support it long after installation day.
Our full residential and commercial service menu includes:
- Furnace installation, repair, and service
- Air conditioner installation, repair, and service (including ductless mini-split systems)
- Heat pump installation, repair, and service
- Air handler installation, repair, and service
- Boiler systems — steam, hot water/hydronic, and high-efficiency condensing
- Commercial HVAC: rooftop units, VRF systems, commercial controls, indoor air quality, and unit heaters
- Maintenance agreements with 15% off and priority scheduling
- Duct cleaning and dryer vent cleaning
We're not a franchise dispatching technicians from a call center two counties out. D's Air & Heating Inc. is based at 549 North Monticello in Chicago, IL — right in the community we serve. Since 2009, we've been the HVAC company Chicago homeowners and commercial property managers call when something goes wrong and they need someone who can actually get there.
Our technicians are EPA certified, our rating sits at 4.8 stars across Google reviews, and our growth has come almost entirely from referrals. That's what happens when a family-owned company treats every job like a neighbor's problem worth solving right.
A Chicago HVAC Company That Actually Calls Chicago Home
Why Chicago Residents Choose D's Over the Bigger Names
When your furnace goes out in January or your AC fails on a July weekend, you don't want to navigate a hold queue with a national chain. You want someone local who picks up, shows up, and fixes it. That's the version of HVAC service we've built since 2009.
A few reasons Chicago customers keep coming back — and keep sending their neighbors our way:
- Authorized Lennox dealer: We sell and service Lennox equipment with full manufacturer authorization, which means your warranty stays intact and your equipment is handled by technicians trained on the brand.
- Also authorized by Carrier and Green: More equipment options mean better fits for different budgets and building types.
- EPA certified technicians: Every tech on our team holds EPA certification, so the work is done correctly and to code.
- Maintenance agreement savings: Members save 15% on parts and labor and move to the front of the scheduling line — especially useful during peak heating and cooling season.
- Family-owned since 2009: You're dealing with the same team, not a rotating cast of subcontractors.
What Our Customers Say
See why our neighbors keep calling us back. Book Online and find out for yourself.
Common Questions About HVAC Service in Chicago
Is D's Air & Heating actually located in Chicago, or do they just serve the area?
We're based at 549 North Monticello, Chicago, IL. We're a Chicago company, not a suburban contractor who added the city to a service area list.We're based at 549 North Monticello, Chicago, IL. We're a Chicago company, not a suburban contractor who added the city to a service area list.Do you work on older Chicago homes with steam boilers or aging ductwork?
Yes. Chicago's housing stock is older than most, and we're experienced with steam boilers, hot water systems, and the kind of mixed or aging infrastructure you find in two-flats, greystones, and vintage commercial buildings. We handle installation, repair, and service across all of it.Yes. Chicago's housing stock is older than most, and we're experienced with steam boilers, hot water systems, and the kind of mixed or aging infrastructure you find in two-flats, greystones, and vintage commercial buildings. We handle installation, repair, and service across all of it.What does it mean that you're an authorized Lennox dealer in Chicago?
It means we're trained and certified by Lennox to sell and install their equipment, and that manufacturer warranties on Lennox systems remain valid when we do the work. Buying from an authorized Lennox dealer protects your investment in a way that purchasing through an unauthorized installer does not.It means we're trained and certified by Lennox to sell and install their equipment, and that manufacturer warranties on Lennox systems remain valid when we do the work. Buying from an authorized Lennox dealer protects your investment in a way that purchasing through an unauthorized installer does not.How quickly can you get to a Chicago address for a furnace repair or AC call?
Because we're based in the city, we can typically respond faster to Chicago addresses than contractors coming in from the suburbs. Maintenance agreement members receive priority scheduling, which moves them ahead of standard service calls during busy periods.Because we're based in the city, we can typically respond faster to Chicago addresses than contractors coming in from the suburbs. Maintenance agreement members receive priority scheduling, which moves them ahead of standard service calls during busy periods.Do you offer financing on new HVAC installations in Chicago?
Yes. We offer financing options on new system installations. Visit our financing page for current terms and to see what's available for your project.Yes. We offer financing options on new system installations. Visit our financing page for current terms and to see what's available for your project.
Have a financing question we didn't cover? Contact us or call 773-940-0965.
Serving Chicago and the Surrounding Communities
Our primary service area is Chicago — all neighborhoods, all housing types, all system sizes. Whether you're dealing with an urgent repair or planning a full system replacement, we're based here and ready to help.
To confirm service availability or book an appointment, visit our full service areas page or contact us directly at 773-940-0965.
