Boiler Installation in Chicago — Installed Right the First Time
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
Why Chicago Homeowners Are Upgrading to High-Efficiency Condensing Boilers
Older cast-iron boilers are workhorses, but they run at efficiencies as low as 60–70%, meaning a significant portion of the gas you pay for exits through the flue as waste heat. Modern high-efficiency condensing boilers operate at 90% AFUE or higher — a real difference on a Chicago gas bill over a full heating season.
Condensing boilers also run quieter, modulate output to match your actual heat demand rather than cycling on and off at full capacity, and pair well with modern thermostats and zoning controls. For homeowners who want lower utility costs without sacrificing the reliable, even heat that a hydronic system delivers, a condensing boiler upgrade is often the most practical long-term investment.
As an authorized Lennox dealer, we can walk you through available Lennox high-efficiency boiler options and help you understand what the efficiency gain translates to in real savings for your home or building.
A boiler installation isn't just swapping out equipment. Whether you're replacing an aging steam boiler, upgrading from a standard hot water system to a high-efficiency condensing unit, or installing a boiler in a property that's never had one, the scope of work involves proper sizing, piping configuration, venting, controls integration, and a full system test before we leave. At D's Air & Heating, our EPA certified technicians handle every step — no subcontractors, no shortcuts.
We're an authorized Lennox dealer, which means we have direct access to Lennox boiler equipment and the factory-backed training to install it correctly. We also carry Carrier and Green equipment, so if your project calls for a different system, we can match the right unit to your building and budget.
Our boiler installation services cover:
- Steam boiler replacement and new installation
- Hot water (hydronic) boiler installation and system upgrades
- High-efficiency condensing boiler installation
- Boiler installation for multi-unit residential buildings and commercial properties
- High-capacity commercial boiler installs for facilities managers and property owners
- Complete system replacements when repair is no longer cost-effective
What a Professional Boiler Installation Actually Covers
Financing and Maintenance Agreements — Plan the Full Cost Before You Commit
A new boiler installation is a significant investment, and we want you to go into it with a clear picture of both the upfront cost and the ongoing value. Financing options are available, so if replacing your boiler before the heating season hits isn't something you can cover out of pocket, we can help you structure a payment plan that works.
We also recommend pairing a new boiler installation with a D's maintenance agreement. Members receive 15% off services and priority scheduling — which matters in January when every HVAC company in Chicago is booked out. A new boiler is a long-term asset, and a maintenance agreement is how you protect that investment and keep it running at peak efficiency for years after the install.
What Our Customers Say
See why our neighbors keep calling us back. Book Online and find out for yourself.
Common Questions About Boiler Installation
How long does a boiler installation take?
Most residential boiler replacements are completed in one day. More complex installs — high-efficiency condensing systems with new venting, multi-unit buildings, or commercial high-capacity units — may require two days. We'll give you a realistic timeline when we assess your project.Most residential boiler replacements are completed in one day. More complex installs — high-efficiency condensing systems with new venting, multi-unit buildings, or commercial high-capacity units — may require two days. We'll give you a realistic timeline when we assess your project.What's the difference between a steam boiler and a hot water boiler installation?
Steam boilers heat water until it produces steam, which travels through a one- or two-pipe system to radiators. Hot water (hydronic) boilers circulate heated water through the system at lower temperatures. The installation process, piping requirements, and compatible equipment differ significantly between the two — which is why proper diagnosis of your existing system matters before any new equipment is selected.Steam boilers heat water until it produces steam, which travels through a one- or two-pipe system to radiators. Hot water (hydronic) boilers circulate heated water through the system at lower temperatures. The installation process, piping requirements, and compatible equipment differ significantly between the two — which is why proper diagnosis of your existing system matters before any new equipment is selected.Can I upgrade from a standard boiler to a high-efficiency condensing boiler?
In most cases, yes — but it depends on your existing piping, venting configuration, and system type. Condensing boilers require a different venting approach than conventional units, and some older steam systems aren't compatible with condensing technology. Our technicians will assess your current setup and tell you exactly what an upgrade would involve.In most cases, yes — but it depends on your existing piping, venting configuration, and system type. Condensing boilers require a different venting approach than conventional units, and some older steam systems aren't compatible with condensing technology. Our technicians will assess your current setup and tell you exactly what an upgrade would involve.Do you install boilers in commercial buildings and multi-unit properties?
Yes. We handle multi-unit residential buildings, commercial properties, and high-capacity commercial boiler installs. If you're a facility manager or property owner with a larger project, we can scope the work and provide an estimate.Yes. We handle multi-unit residential buildings, commercial properties, and high-capacity commercial boiler installs. If you're a facility manager or property owner with a larger project, we can scope the work and provide an estimate.How do I get a boiler installation estimate?
Book online to schedule an estimate — it's the fastest way to get on our calendar. You can also call us at 773-940-0965 or submit a contact form. We serve Chicago and the surrounding suburbs including Cicero, Berwyn, Oak Park, Maywood, and Calumet City.Book online to schedule an estimate — it's the fastest way to get on our calendar. You can also call us at 773-940-0965 or submit a contact form. We serve Chicago and the surrounding suburbs including Cicero, Berwyn, Oak Park, Maywood, and Calumet City.
Have a financing question we didn't cover? Contact us or call 773-940-0965.
Book Your Boiler Installation Before the Cold Hits
Chicago winters don't give you much warning. If your boiler is aging, running inefficiently, or already showing signs of failure, scheduling your replacement now — before peak heating season — means you're not competing for the first available appointment when temperatures drop. Book online to get your install estimate on the calendar, or call us at 773-940-0965. Don't freeze — call D's.
