Steam and Hot Water Boilers Keep Many Chicago Homes Warm
If you live in one of Chicago’s older bungalows, two-flats, or vintage apartment buildings, there is a good chance a boiler heats your home. Radiator heat and hydronic systems remain common throughout the city and surrounding suburbs, and for good reason. Boilers deliver steady, even warmth that many families prefer over forced air, especially during the long stretches of single-digit weather that settle over the region each winter.
At All Temp Heating & Air Conditioning, we service, repair, and install both steam and hot water boilers across Chicago and the nearby communities. Boilers are durable machines, but they depend on a network of valves, pumps, controls, and pipes that all need to work together. When one part fails, the whole system can stop delivering heat. Our job is to keep your boiler running safely and efficiently through every season, and to answer the questions you have about the equipment you rely on.
How Do I Know If My Boiler Needs Service?
Boilers often give warning signs before they fail completely. A common one is uneven heat, where some radiators get hot while others stay cold. This can point to trapped air, a failing circulator pump, or sludge buildup inside the piping. Another sign is strange noise. Banging, knocking, or gurgling sounds, sometimes called kettling, usually mean sediment has collected on the heat exchanger or that water is not moving through the system the way it should.
You should also pay attention to pressure. Most residential hot water boilers operate between 12 and 15 psi when cold, and around 20 psi when hot. If the gauge reads far outside that range, or if the pressure relief valve is leaking, the system needs attention. Rising fuel bills without a matching change in weather often indicate that the boiler is losing efficiency. Any smell of gas, visible soot, or repeated pilot or ignition failures should prompt an immediate call. These are the situations we address every day for homeowners throughout the area.
Our Boiler Service Process
When you schedule a service visit with All Temp Heating & Air Conditioning, we follow a methodical process so nothing gets overlooked. A boiler is a pressurized, fuel-burning appliance, and careful inspection protects both your comfort and your safety. Here is how a typical service call is handled:
- Full system inspection: We examine the boiler body, heat exchanger, burners, and venting for corrosion, cracks, or soot that could affect performance or safety.
- Combustion and gas check: We confirm the burner is firing cleanly, verify gas pressure, and inspect the flue for proper draft and any signs of blockage or backdrafting.
- Control and safety testing: We test the aquastat, pressure relief valve, low-water cutoff, and thermostat connections to make sure the boiler shuts down properly under fault conditions.
- Water side maintenance: For hot water systems we check the circulator pump, expansion tank, and air separator, and we bleed radiators to remove trapped air. For steam systems we inspect the water level, gauge glass, and pigtail siphon.
- Cleaning and adjustment: We clear sediment where accessible, clean burner assemblies, and fine-tune settings so the boiler runs at its intended efficiency.
After the work is finished, we walk you through what we found and explain any recommendations in plain language. We never push repairs you do not need, and we make sure you understand the condition of your equipment before we leave. This straightforward approach is one reason All Temp Chicago Heating & Air Conditioning has become the first choice for tens of thousands of families throughout the Chicago and suburban areas.
Steam Boilers Versus Hot Water Boilers
Understanding which type of boiler you own helps you make better decisions about maintenance and repair. Steam boilers heat water until it turns to steam, which then rises through the piping and into radiators, releasing heat as it cools and condenses back into water. These systems are common in older Chicago buildings. They rely on proper water levels, clean sight glasses, and functioning air vents to distribute steam evenly. Skipping maintenance on a steam boiler can lead to wet steam, water hammer, and inconsistent heating.
Hot water boilers, also called hydronic systems, heat water and circulate it through pipes using one or more pumps. They tend to run at lower temperatures and can be more efficient and easier to zone than steam systems. Because they are a closed loop, they depend on the right pressure, a healthy expansion tank, and pumps in good working order. Both types can last for decades with proper care, and we service both. If you are not sure which system you have, our technicians will identify it during the first visit and explain how it works.
Boiler Repair, Installation, and Replacement
Not every boiler problem calls for a full replacement. Many issues we see come down to a worn circulator pump, a failed aquastat, a stuck zone valve, or a waterlogged expansion tank. These are repairs that restore reliable heat without the cost of a new unit. We stock and work with quality components, and we aim to get your heat back on quickly, especially when the weather turns dangerously cold.
When a boiler is beyond economical repair, though, replacement is often the smarter long-term choice. A cracked heat exchanger, repeated leaks, or an aging unit that no longer holds pressure can cost more to keep alive than to replace. Older boilers often operate at efficiencies far below what modern equipment achieves. A new high-efficiency boiler can lower your fuel use and deliver more consistent comfort. As a family owned and operated company, All Temp Heating & Air Conditioning helps you weigh the honest trade-offs so you can decide what makes sense for your home and budget. We handle proper sizing, safe removal of the old unit, and complete installation with attention to venting, piping, and controls.
More Than Boilers
While this page focuses on boiler services, our work covers the full range of home comfort equipment. All Temp Heating & Air Conditioning sells and services quality furnaces, air conditioning, boilers, air purifiers, humidifiers, ventilation, and water heaters. We provide expert equipment installation, tune-up, and repair services, so whether you need seasonal maintenance, an emergency repair, or a complete system upgrade, one call connects you with a team that knows your home’s mechanical systems inside and out.
We are also proud to be one of Bryant’s highest-rated dealers in the nation, which reflects our commitment to quality equipment and skilled workmanship. That recognition comes from doing the job right, treating homes with respect, and standing behind our work long after the installation truck has pulled away.
Serving Chicago and the Surrounding Communities
Our courteous, fast, and friendly staff is here to service all of your needs, from a single radiator that will not heat to a complete boiler replacement in a multi-unit building. We provide boiler services across Chicago, IL and the surrounding areas including Chicago, Bolingbrook, Skokie, Evanston, Lincolnwood, Morton Grove, Niles, Park Ridge, Woodridge, and Darien, IL. Because we live and work in these communities, we understand the housing styles, the heating demands, and the winter conditions that put local boilers to the test.
When your boiler needs attention, you want a company that shows up, explains the problem clearly, and gets your heat working again. That is exactly what we set out to do on every visit. Reach out to All Temp Heating & Air Conditioning to schedule boiler service, request a repair, or ask about a new high-efficiency system. We are ready to keep your home warm, safe, and comfortable all winter long.