When temperatures drop and your heating system suddenly stops working, every minute counts. Homes and businesses throughout Southern and Metro East Illinois—including Fayette, Effingham, Montgomery, Bond, Madison, St. Clair, and surrounding counties—count on Mars Plumbing & Heating, Inc. for fast, dependable emergency heating service. With more than 45 years of experience and 24/7 live answering, our team responds quickly to restore safe, reliable heat when you need it most.

No matter the time of day or night, our licensed HVAC technicians are prepared to diagnose urgent heating problems and provide immediate, long-lasting solutions. Whether your furnace has stopped producing heat, your boiler won’t ignite, or your heat pump is frozen over, we’re here to keep your home warm and your family safe.

Emergency Heating Services You Can Depend On

Heating failures can happen without warning, especially during peak winter months in Illinois. When outdoor temperatures fall into the teens or single digits, losing heat becomes more than an inconvenience—it becomes a safety concern. Our emergency repair team is equipped to respond quickly across rural and suburban neighborhoods, from Vandalia and Greenville to Belleville, Edwardsville, O’Fallon, and beyond.

Our technicians are trained to work on all major brands and heating system types, including furnaces, boilers, heat pumps, and ductless mini-splits. You can count on fast troubleshooting, honest recommendations, and repairs that prioritize safety, comfort, and system reliability.

No-Heat Situations

A complete loss of heat is one of the most common heating emergencies we handle. If your system stops producing warm air—especially when temperatures are below freezing—call us immediately. Our team will arrive quickly, inspect your system, and restore heat as soon as possible.

Strange Odors or Sounds

Unusual odors, such as burning, electrical, or gas-like smells, should never be ignored. These issues can be signs of overheating, electrical failure, or combustion problems. Likewise, loud banging, grinding, or screeching noises can indicate dangerous system failure. Shut down your heater and call our emergency team right away if you notice these symptoms.

Carbon Monoxide Alerts

If your carbon monoxide (CO) detector alarms, evacuate your home immediately and call emergency services. Then contact us for a full inspection. Carbon monoxide leaks can result from cracked heat exchangers, blocked flue pipes, or improper combustion—all conditions that require urgent professional attention.

Frozen or Malfunctioning Heat Pumps

Southern Illinois winters can strain heat pump systems, causing freezing, airflow issues, or reversing valve failures. If your heat pump suddenly stops heating or blows cold air, our team has the experience to restore proper operation quickly.

Fast Response Throughout Southern & Metro East Illinois

We serve communities across the region, including:

• Fayette County: Vandalia, Ramsey, Brownstown
• Effingham County: Effingham, Teutopolis, Altamont
• Montgomery County: Litchfield, Hillsboro
• Bond County: Greenville, Pocahontas
• Madison County: Edwardsville, Collinsville, Granite City
• St. Clair County: Belleville, O’Fallon, Fairview Heights

Whether you live in town or in a rural area, our team is committed to getting heat restored as quickly as possible.

Why Choose Mars Plumbing & Heating for Emergency Heating Service?

• Over 45 years of trusted local HVAC experience
• Licensed, insured, and highly experienced heating technicians
• 24/7 live answering—you speak to a real person
• Fast arrival and fully stocked service vehicles
• Reliable repairs for all heater makes and models
• Safety-focused diagnostics and honest recommendations
• Proudly serving Southern & Metro East Illinois communities

Your home’s safety and comfort are our highest priorities, especially during an unexpected heating failure.