When temperatures drop across the Metro East, a dependable furnace isn’t optional — and a breakdown on a freezing night is an emergency. Crumer’s provides furnace repair, seasonal maintenance, whole-home humidifiers, and new heating system installation for homeowners in O’Fallon, East St. Louis, Cahokia Heights, and the surrounding communities. We’re licensed, insured, and available 24 hours a day, so you’re never left in the cold.
Our Heating Services
- Furnace Repair
- Furnace Installation
- Furnace Tune-ups
- Heat Pump Repairs
- Heat Pump Installation
- Boiler Repair
- Boiler Installation
- Furnace Parts
- Heat Pump Parts
- Boiler Parts
- Heating Maintenance Contracts
- Heating System Upgrades
- Ductless Mini-Split Heat Pumps
- Single-Room Heating
- Wall-Mount Heat Pumps
- Sheet Metal Fabrication
- Water Heater Repairs
- Water Heater Upgrades
- Water Heater Replacements
- Standard & Tankless Water Heaters (Gas/Electric)
Furnace Repair
No heat, cold air from the vents, or a furnace that won’t stay running? Our technicians track down the problem and restore your heat quickly — with 24-hour service for those coldest-night emergencies. Because gas furnaces involve combustion and carbon monoxide risk, prompt, professional repair isn’t just about comfort; it’s about safety.
Common signs you need furnace repair:
• The furnace won’t turn on or won’t stay on
• Cold air blowing when it should be warm
• Short-cycling (frequent on/off)
• Banging, rattling, or squealing noises
• A yellow (instead of blue) burner flame
• Rising heating bills without a change in usage
Furnace Tune-Ups & Seasonal Clean-and-Checks
A fall tune-up keeps your furnace running safely and efficiently through winter — and helps prevent the mid-season breakdowns that lead to emergency calls. Our seasonal clean-and-checks keep your system in top shape, include a fresh filter, and can extend its life. Schedule in fall, before the first hard freeze.
Furnace Replacement & New Installation
If your furnace is 15–20+ years old, needs frequent repairs, or can’t keep the house evenly warm, a new high-efficiency system may pay for itself in lower bills and fewer breakdowns. Crumer’s helps you select the right furnace for your home and installs it correctly for safe, reliable heat.
Ductless Mini-Split Heat Pumps
Heating a space without ductwork — an addition, a garage, an older home — doesn’t have to mean space heaters. Ductless mini-split heat pumps deliver efficient heating (and cooling) with room-by-room control. Crumer’s installs and services mini-splits for year-round comfort.
Whole-Home Humidifiers & Indoor Air Quality
Metro East winters are dry, and dry indoor air means static shocks, cracked skin, and a home that feels colder than the thermostat says. A whole-home humidifier works with your furnace to keep humidity comfortable all winter. We install and service humidifiers, replace furnace filters, and help improve your home’s air.
• Whole-home humidifier installation and repair
• Furnace filter replacement
Why Choose Crumer's for Heating
• 20 years of HVAC experience
• Licensed and insured technicians
• 24-hour emergency heating service
• 1-year labor warranty
• Low, honest rates — no hidden fees
Heating Service Across the Metro East
We provide heating and furnace service in O’Fallon, East St. Louis, Cahokia Heights, Belleville, Alton, Collinsville, Edwardsville, Granite City, and surrounding communities.
Heating FAQ
Yes — we’re available 24 hours a day for no-heat emergencies. Call (618) 410-5321.
Once a year, ideally in fall before heating season, to keep it safe and efficient.
If your home feels dry in winter — static, cracked skin, or air that feels colder than the thermostat reads — a whole-home humidifier can make a big difference in comfort. We can add one to your existing furnace.
Generally when it’s 15–20+ years old, needs repeated repairs, or can’t heat your home evenly. We’ll give you an honest recommendation.
It can be — a yellow or flickering flame may signal incomplete combustion and a possible carbon monoxide concern. Turn the system off and call us right away.