Authorized Weil-McLain Dealer Installation Chicago | D's Air & Heating, Inc.
Weil-McLain Boiler Installation in Chicago
America's most trusted boiler brand — cast-iron steam, condensing hot-water, and commercial systems. D's Air installs every Weil-McLain model with upfront pricing and no contracts.
Why Weil-McLain?
Weil-McLain has been manufacturing boilers in the USA since 1881. Their cast-iron steam boilers are the gold standard for Chicago's vintage housing stock — two-flats, greystones, and bungalows built before 1960. Their WM97+ condensing series delivers up to 96% AFUE for homeowners looking to cut heating bills.
Weil-McLain Boiler
Up to 10-year heat exchanger warranty on select models.
Weil-McLain Boiler
Weil-McLain cast-iron sections last 30–50 years with proper maintenance.
Weil-McLain Boiler
WM97+ series reaches 96% AFUE — among the highest in the industry.
Weil-McLain Boiler
Full lineup covers single-pipe steam, two-pipe steam, and hydronic hot-water.
Weil-McLain Boiler
Models from 70,000 BTU single-family up to 630,000 BTU multi-unit.
Weil-McLain Boiler
Weil-McLain has heated Chicago homes since 1881 — built for Midwest winters.
Weil-McLain Models We Install
All installed prices include equipment, labor, permits, and startup. Price confirmed before work begins.
Weil-McLain
WM97+ 70
Gas Hot-Water Condensing
Installed price includes equipment, labor, permits & startup
Weil-McLain
WM97+ 110
Gas Hot-Water Condensing
Installed price includes equipment, labor, permits & startup
Weil-McLain
WM97+ 155
Gas Hot-Water Condensing
Installed price includes equipment, labor, permits & startup
Weil-McLain
TF-GSA-238-NIPS2
Thermoelectric Steam
Installed price includes equipment, labor, permits & startup
Weil-McLain
GM-GMGS-225
Green Mountain Steam
Installed price includes equipment, labor, permits & startup
Weil-McLain
GV90+ 4
Gas Hot-Water Condensing
Installed price includes equipment, labor, permits & startup
Weil-McLain
EG-40
Cast-Iron Gas Hot-Water
Installed price includes equipment, labor, permits & startup
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.
Weil-McLain Commercial Boilers
D's Air & Heating installs the full Weil-McLain commercial boiler lineup for Chicago apartment buildings, schools, churches, and industrial facilities. Every installation includes model-specific near-boiler piping, secondary commercial safety controls, and commissioning.
★ Top RatedWeil-McLain
LGB Series 3
Cast-iron sectional commercial boiler for steam and hot water. Input range 350,000–2,470,000 BTUH. The gold standard for Chicago multi-unit buildings.
Installed prices include equipment, labor, permits & startup
Weil-McLain
88 Series
Cast-iron sectional boiler for steam and hot water applications. A proven workhorse for Chicago apartment buildings and commercial facilities.
Compare All Boiler Brands
See how Weil-McLain stacks up against Crown, Green Mountain, Dunkirk, Navien, and NTI side by side.
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.
Weil-McLain Boiler Installation & Service Experts
D's Air & Heating proudly provides professional Weil-McLain boiler installation, replacement, repair, maintenance, and emergency service throughout Chicago and surrounding communities. Weil-McLain is recognized as one of the most trusted names in the boiler industry, delivering reliable heating solutions for residential, commercial, steam, and hot water applications.
Our experienced boiler technicians install and service a wide range of Weil-McLain equipment, including high-efficiency condensing boilers, cast iron hot water boilers, commercial heating systems, and steam boiler applications. Whether you need a new Weil-McLain boiler installation Chicago homeowners and businesses rely on, complete boiler replacement, annual maintenance, or emergency repair service, D's Air & Heating has the expertise to keep your heating system operating safely and efficiently.
We help customers select the right Weil-McLain boiler based on building requirements, heating loads, efficiency goals, and budget considerations while ensuring every installation meets manufacturer specifications and local code requirements.
From residential heating systems to large commercial boiler projects, D's Air & Heating delivers quality workmanship, expert system design, and dependable customer support backed by industry-leading Weil-McLain technology and warranty protection. Our Weil-McLain boiler repair Chicago customers trust us for fast diagnostics, genuine parts, and lasting fixes.
Contact D's Air & Heating today at (773) 940-0965 to schedule your free estimate for Weil-McLain boiler installation, replacement, maintenance, or repair services.
Ready to Install a Weil-McLain Boiler?
D's Air & Heating, Inc. — Chicago's trusted Weil-McLain installer since 2009. No contracts. Upfront pricing. IL License #2183457.