
Boiler Repair & Installation in Chicago, IL
Steam and hot-water boiler repair, replacement, and radiator service for Chicago's classic older homes and buildings.
Chicago is a boiler town. Countless bungalows, two-flats, vintage homes, and historic buildings across the city are heated by steam and hot-water boilers feeding radiators and baseboards — systems that need a contractor who actually understands hydronic heat. Polar Refrigeration & Air Control repairs, services, and replaces boilers across Chicago and the suburbs.
Boiler heat is comfortable, quiet, and durable, but it's a different discipline from forced air. Circulation, zoning, pressure, water quality, and radiator balancing all matter, and a technician who only knows furnaces can miss the real problem. Our team diagnoses and repairs steam and hot-water systems correctly, and installs modern high-efficiency boilers when replacement makes sense.
Whether you have a decades-old steam boiler with radiators or a modern hydronic system with in-floor heat, we keep it running safely and efficiently through Chicago's long winters.

Signs Your Boiler Needs Service
- No heat or uneven heat across radiators or zones
- Banging, knocking, or gurgling pipes (common in steam systems)
- Low boiler pressure or frequent pressure loss
- Water leaks around the boiler or radiators
- The boiler short-cycles or won't fire
- Cold radiators while others get hot
- Rising heating bills from an inefficient old boiler
- Visible corrosion or age on the boiler
Steam & Hot-Water Boiler Expertise
Steam and hot-water boilers behave very differently, and both are common in Chicago's older housing. Steam systems demand attention to water level, pressure, venting, and the notorious banging pipes that signal trapped condensate or pitch problems. Hot-water (hydronic) systems rely on circulators, expansion tanks, and zoning to move heat evenly.
We service both, along with the radiators, baseboards, and in-floor tubing they feed. When one zone is cold or a radiator won't heat, the fix is often balancing, air removal, or a circulator — not replacing the whole system. We find the real issue and solve it.
- Steam boiler repair, low-water cutoffs, and venting
- Hot-water boiler circulators, expansion tanks, and zoning
- Radiator and baseboard balancing and air removal
- High-efficiency boiler installation and replacement
- Pressure, control, and safety diagnostics
Modern High-Efficiency Boiler Options
When an aging boiler is failing or costing a fortune to run, a modern high-efficiency condensing boiler can cut fuel use dramatically while keeping the comfortable, even warmth that makes hydronic heat so desirable. We size the new boiler to your home and existing distribution, handle the permit and installation, and can add zoning for better control. For many older Chicago homes, it's the single biggest comfort-and-savings upgrade available.
Our Boiler Service Process
Hydronic diagnosis
We evaluate the boiler, circulation, pressure, controls, and radiators or zones to find the true cause — not just the symptom.
Repair or replace guidance
You get honest advice: repair when the system has life left, or a written replacement proposal with efficiency and cost laid out.
Expert service
We repair steam and hot-water systems correctly, address balancing and circulation, and pull permits for installations.
Safe, efficient operation
We verify safe operation, proper pressure, and even heat across your radiators or zones before we finish.
What Affects the Cost
Boiler service ranges from a minor repair to a full high-efficiency replacement. Here's what shapes the cost.
Repair vs. replacement
A circulator, control, or valve repair is modest; a full boiler replacement is a major investment.
Boiler type and efficiency
Steam versus hot-water systems and standard versus high-efficiency condensing boilers differ in parts and installation.
Distribution and zoning
Radiator balancing, added zones, and piping modifications affect the scope of work.
Permits and access
Chicago mechanical permits and difficult basement or mechanical-room access factor into the total.
Why Choose Polar for Boiler Services in Chicago
Boiler Repair & Installation is only as good as the crew behind it. Here's what Chicago homeowners and businesses get when they call Polar Refrigeration & Air Control instead of a general handyman or an out-of-town outfit.
24/7 response you can count on
A 60-minute call-back on emergencies and same-day dispatch whenever weather and volume allow — because boiler services problems rarely wait for business hours.
Licensed, insured & EPA 608 certified
Refrigerant work is handled by EPA Section 608 certified technicians, and we pull the required Chicago mechanical permits so the job is done to code and on the record.
4.8★ across 43 reviews
Real Chicagoland homeowners and business owners rate us for showing up on time, explaining the work in plain language, and standing behind it with a written guarantee.
Upfront pricing & honest advice
You get a clear, written quote before any work begins — plus financing options and a genuine repair-first assessment, never a pressure pitch to replace.
Boiler Services Across Chicagoland
We provide boiler repair & installation throughout Chicago and the surrounding suburbs — from the city's bungalows and two-flats to North Shore homes and commercial buildings across Cook County and beyond. Popular areas include Boiler Services in Cook County, Boiler Services in Evanston, Boiler Services in Oak Park, Boiler Services in Cicero, Boiler Services in Berwyn, and Boiler Services in Skokie. Our technicians know how the region's housing stock and lake-influenced climate affect comfort systems, so you get service tuned to your building — not a one-size-fits-all visit. Don't see your community? View all service areas or call us to confirm coverage to your address.
Related Services
Furnace & Heating Repair
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Frequently Asked Questions
Common questions about boiler services in Chicago.
As a non-binding planning range, boiler replacements in Chicagoland commonly run from roughly $6,500 to $15,000 depending on type, efficiency, size, and distribution changes. High-efficiency condensing boilers and complex zoning cost more. Your written quote is based on your specific system.
In steam systems, banging usually means trapped condensate, a pitch problem, or venting issues; in hot-water systems, knocking can indicate trapped air or circulation problems. It's fixable, and it often points to a maintenance or balancing issue rather than needing a new boiler.
It's possible but rarely the best value, since it means adding ductwork throughout the home. Often, servicing or upgrading the boiler and improving distribution delivers better comfort for less. We'll give you an honest comparison for your specific home.
Yes, both. We repair and install steam and hot-water (hydronic) boilers and service the radiators, baseboards, and zones they feed — a specialty that matters in Chicago's older housing stock.
Yes. Hydronic heat is a whole system, so we service the boiler along with the circulators, zones, radiators, baseboards, and in-floor tubing it feeds. When one room is cold, the fix is often balancing or air removal — not a new boiler.
Ready for Reliable Comfort? Get a Free Estimate
Same-day service available. Call now or request your free, no-obligation quote — our licensed, insured team is standing by 24/7.
