Boiler Installation & Service in Chicago
Professional installation, replacement, and service for all residential and commercial boilers. We support every major manufacturer — high-efficiency condensing, cast-iron, steam, hot water, and industrial systems. All installations include safety checks, startup, and manufacturer warranty registration.
Residential vs. Commercial Boilers
We install and service both — here's how they differ.
Residential Boilers
Residential boilers provide dependable, long-lasting heat for homes, condos, townhomes, and small multi-unit buildings. D's Air & Heating installs and services all major residential boiler manufacturers, offering both high-efficiency condensing systems and traditional cast-iron boilers for hot water and steam applications. Our residential lineup includes Weil-McLain, Burnham, Navien, Lochinvar, Peerless, Buderus, Viessmann, Crown, Slant/Fin, Laars, NTI, Triangle Tube, Thermoflo, and Green Mountain. These systems are engineered for Chicago's demanding winters, delivering quiet operation, even heat distribution, and reliable performance across all home types. Whether upgrading an older radiator system or installing a modern hydronic setup, D's Air ensures proper sizing, venting, piping, and safety controls. Every installation includes full system startup, combustion analysis, and manufacturer warranty registration.
- Homes, condos, townhomes, and small multi-unit buildings
- Hot water and steam radiator systems
- High-efficiency condensing and cast-iron options
- Compact wall-hung to heavy-duty cast-iron units
- Proper sizing, venting, piping, and safety controls
- Full startup, combustion analysis, and warranty registration
Commercial Boilers
Commercial boilers deliver high-capacity heating for restaurants, schools, churches, warehouses, industrial facilities, and large multi-unit buildings. D's Air & Heating provides full installation, replacement, and service for all major commercial boiler manufacturers, including Cleaver-Brooks, Miura, Fulton, Lochinvar Commercial, Bosch Industriekessel, Babcock & Wilcox, Alfa Laval, Thermax, and Vaillant Commercial. We evaluate building load requirements, piping layout, control strategies, and redundancy needs to ensure optimal performance and long-term reliability. Every commercial installation includes startup testing, safety checks, and warranty registration.
- Restaurants, schools, churches, and warehouses
- Industrial facilities and large multi-unit buildings
- High-capacity steam and hydronic heating systems
- Advanced controls and BAS integration
- Precise system design, venting, and pump integration
- Startup testing, safety checks, and warranty registration
Residential Boilers
Residential boilers provide dependable, long-lasting heat for homes, condos, townhomes, and small multi-unit buildings. D's Air & Heating installs and services all major residential boiler manufacturers, offering both high-efficiency condensing systems and traditional cast-iron boilers for hot water and steam applications. Our residential lineup includes Weil-McLain, Burnham, Navien, Lochinvar, Peerless, Buderus, Viessmann, Crown, Slant/Fin, Laars, NTI, Triangle Tube, Thermoflo, and Green Mountain. These systems are engineered for Chicago's demanding winters, delivering quiet operation, even heat distribution, and reliable performance across all home types. Whether upgrading an older radiator system or installing a modern hydronic setup, D's Air ensures proper sizing, venting, piping, and safety controls. Every installation includes full system startup, combustion analysis, and manufacturer warranty registration.
Commercial Boilers
Commercial boilers deliver high-capacity heating for restaurants, schools, churches, warehouses, industrial facilities, and large multi-unit buildings. D's Air & Heating provides full installation, replacement, and service for all major commercial boiler manufacturers, including Cleaver-Brooks, Miura, Fulton, Lochinvar Commercial, Bosch Industriekessel, Babcock & Wilcox, Alfa Laval, Thermax, and Vaillant Commercial. We evaluate building load requirements, piping layout, control strategies, and redundancy needs to ensure optimal performance and long-term reliability. Every commercial installation includes startup testing, safety checks, and warranty registration.
Why D's Air & Heating, Inc.
Chicago's boiler specialists since 2009. Licensed, insured, and no contracts required.
Licensed & Insured
IL License #2183457. Fully insured for all residential and commercial boiler work.
All Major Brands
15 residential and 9 commercial brands. We install and service whatever you have.
No Contracts
No maintenance contracts required. We earn your business every visit — that's the D's Air way.
Warranty Registration
Every installation includes manufacturer warranty registration and startup documentation.
Residential & Commercial
From single-family homes to large industrial facilities — we handle it all.
Chicago-Based Since 2009
Serving Chicago's neighborhoods for 15+ years. We know the city's older buildings and heating systems.
Service Call Policy — D's Air & Heating, Inc.
- The service call fee covers travel and full diagnostics only.
- The service call fee is not deducted from the total cost of any repair or installation.
- After diagnostics, we provide clear repair or replacement options with upfront, itemized pricing.
- Once you approve the Maintenance Agreement, your 15% discount becomes active and is automatically applied to the repair or installation estimate.
- The 15% discount does not apply to the initial service call fee.
A $95.35 Service Call Fee is Required for All Service Appointments, Including Warranty Claims.
Boiler Installation & Replacement – Chicago
D's Air & Heating provides complete boiler installation and replacement for Chicago homes, multi-unit buildings, and commercial spaces. Since 2009, we've installed and serviced every major boiler manufacturer, including Weil-McLain (WM), Burnham/U.S. Boiler (BN), Navien (NAV), Lochinvar (LOCH), Pennco (PN), Crown (CR), Green Mountain (GM), Dunkirk (DK), and NTI. Our process includes proper boiler sizing, clean hydronic piping layout, venting verification, circulator placement, zone balancing, gas service checks, and full system startup with safety testing. We install cast-iron gas boilers, oil boilers, high-efficiency condensing boilers, and combi units that provide heat plus domestic hot water. Each project begins with a radiator and baseboard evaluation to ensure even heat distribution and correct system flow. We specialize in replacing outdated boilers with modern high-efficiency systems that reduce energy use and improve comfort. Residential customers benefit from quiet operation, reliable heating, and long equipment life. Commercial clients receive engineered solutions for multi-unit hydronic systems, small commercial buildings, and mixed-use properties. Our star-rated lineup helps customers compare performance: Weil-McLain ★★★★★, Burnham ★★★★☆, Navien ★★★★★, Lochinvar ★★★★★, Pennco ★★★☆☆, Crown ★★★☆☆, Green Mountain ★★★☆☆, Dunkirk ★★★☆☆, NTI ★★★★★. All boiler pages are fully indexed for search, including abbreviations WM, BN, NAV, LOCH, PN, CR, GM, DK, and NTI. Whether upgrading a home boiler or replacing a commercial system, D's Air delivers clean, code-compliant installations built for Chicago's toughest winters.
Residential Boiler Installation – Chicago
High-efficiency residential boilers installed with proper sizing, venting, and piping.
Residential Brand Ratings
- Weil-McLain (WM)★★★★★
- Burnham / U.S. Boiler (BN)★★★★☆
- Navien (NAV)★★★★★
- Lochinvar (LOCH)★★★★★
- Pennco (PN)★★★☆☆
Residential Applications
Chicago homes with radiators, baseboards, multi-zone hydronic systems, and combi setups. Our residential boiler installations cover single-family homes, two-flats, three-flats, greystones, and vintage buildings throughout the Chicago metro area.
Commercial Boiler Installation – Chicago
Light-commercial and multi-unit boiler systems with high-efficiency condensing options.
Commercial Brand Ratings
- Weil-McLain (WM)★★★★★
- Burnham / U.S. Boiler (BN)★★★★☆
- Navien (NAV)★★★★★
- Lochinvar (LOCH)★★★★★
- Dunkirk (DK)★★★☆☆
- NTI★★★★★
Commercial Applications
Multi-unit buildings, small commercial spaces, hydronic zoning, and high-load systems. D's Air & Heating serves apartment buildings, mixed-use properties, small office buildings, and light industrial facilities throughout Chicago and surrounding suburbs.
Boiler Brand Comparison Chart
Compare the top boiler brands D's Air & Heating installs in Chicago — AFUE, type, best use, and star ratings.
| Brand | Rating | Type | AFUE | Best Use |
|---|---|---|---|---|
| Weil-McLain (WM) | ★★★★★ | Cast-Iron / Gas | 82–96% | Radiators, multi-unit, vintage homes |
| Burnham / U.S. Boiler (BN) | ★★★★☆ | Cast-Iron / Gas & Oil | 82–95% | Older homes, oil-to-gas conversions |
| Navien (NAV) | ★★★★★ | Condensing Combi | 95–97% | High-efficiency + domestic hot water |
| Lochinvar (LOCH) | ★★★★★ | Condensing | 95–96% | Large homes, commercial, multi-zone |
| Pennco (PN) | ★★★☆☆ | Cast-Iron / Gas | 83–86% | Budget installs, chimney-vented systems |
| Dunkirk (DK) | ★★★☆☆ | Cast-Iron / Gas | 82–95% | Multi-unit buildings, steam systems |
| NTI | ★★★★★ | Condensing | 95–97% | High-efficiency installs, combi systems |
AFUE ranges reflect full model lineups. Installed prices vary by model, BTU, and site conditions. Call (773) 940-0965 for a free estimate.
Not Sure Which Boiler Is Right for You?
Our licensed technicians will assess your building, existing system, and budget — then recommend the best boiler for your needs. No pressure, no upsells.
IL License #2183457 · Serving Chicago & Surrounding Areas · No Contracts Required
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.
What Chicago Homeowners Should Know About Boiler Installation
How a Hot Water Boiler Works
A hot water (hydronic) boiler heats water and circulates it through pipes to radiators, baseboard convectors, or radiant floor tubing. The water returns to the boiler, is reheated, and recirculates. Modern condensing boilers achieve 90%+ efficiency by recovering heat from exhaust gases that older boilers waste.
Steam vs. Hot Water Boilers
Steam boilers — common in Chicago's older two-flats and greystones — heat water until it becomes steam, which rises naturally through pipes to cast-iron radiators. They require no circulator pump but need precise water level control. Hot water systems are quieter, more efficient, and easier to zone. D's Air installs and services both.
Boiler Sizing and Near-Boiler Piping
Correct boiler sizing requires calculating the heat loss of every room in the building. Oversized boilers short-cycle and cause water hammer in steam systems. Proper near-boiler piping — header design, equalizer pipe, Hartford Loop for steam — is as important as the boiler itself. D's Air follows manufacturer piping diagrams and ASHRAE guidelines on every installation.
Combustion Safety and Venting
Every boiler installation requires proper combustion air supply and flue venting. Inadequate combustion air causes incomplete combustion and carbon monoxide production. Improper venting allows flue gases to back-draft into the living space. D's Air verifies combustion air, draft, and CO levels on every installation.
What to Expect From Your D's Air Boiler Installation
Free Estimate
We inspect your existing system, measure your building, and provide a written quote covering equipment, labor, and permits.
Equipment Selection
We recommend the right boiler type (steam, hot water, condensing, combi) and brand for your building and budget.
Installation Day
Our crew protects your space, removes the old boiler, installs the new system with proper piping, and cleans up completely.
Startup & Testing
We fill the system, purge air, test all safety controls, verify gas pressure, and confirm proper heat distribution.
Customer Training
We explain your new boiler's controls, how to check the water level (steam systems), and what maintenance is needed.
Warranty Support
We register your equipment and remain available for follow-up service and annual maintenance.
D's Air Installation Standards — Every Boiler Job
- Heat loss calculation and proper boiler sizing
- Near-boiler piping per manufacturer specifications
- Hartford Loop installation on all steam systems
- Backflow preventer and expansion tank on all hot water systems
- Gas line pressure test and leak check at all connections
- Flue venting verification — draft, clearances, and termination
- Low-water cutoff test and safety control verification
- Combustion analysis and CO test after startup
- City of Chicago permit pulled on every installation
- 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.