St. Louis Heating · 24/7 Emergency Service
Furnace Repair & Heating Service — St. Louis, MO.
Locally owned. Master HVAC Engineer Thomas Hoffmann leads a team backed by 30+ years of St. Louis heating experience. Furnace repair, full replacement, heat pumps, and boiler service — handled by people who actually know the equipment.
24/7 Phone
Real people answer every call
Master Engineer
Tom Hoffmann leads every job
All Major Brands
Trane, Carrier, Lennox & more
Locally Owned
Based in Des Peres, MO
24/7 Emergency Service
Furnace Repair in St. Louis
When your furnace stops working in the middle of a St. Louis winter, you can’t wait. We dispatch certified technicians around the clock — including nights, weekends, and holidays. We identify the problem on the first visit and give you clear, honest repair options before we touch anything. Call (314) 471-7625 any time — emergency calls are answered directly, not by an answering service.
Furnace Not Heating
Running but blowing cold air — often ignition, heat exchanger, or fuel supply
Won’t Turn On
Tripped breaker, failed igniter, thermostat, or gas supply problem
Short Cycling
Turns on/off repeatedly — dirty filter, flame sensor, or exchanger issue
Cracked Heat Exchanger
Safety hazard — can release carbon monoxide. Requires immediate inspection
Noises or Smells
Banging, rattling, burning smells — blower, ignition, or duct problems
Ignition Failure
Won’t stay lit or fire — thermocouple, gas valve, or igniter replacement
Repair vs. Replace
Should You Repair or Replace Your Furnace?
A straight answer based on your system’s age, the repair cost, and its efficiency. A general guideline: if your furnace is over 15 years old and a repair exceeds $800–1,000, replacement usually makes more financial sense — today’s high-efficiency units can significantly reduce your monthly gas bill.
Repair makes sense when:
• Furnace is under 15 years old
• Repair cost is under $800
• No history of recurring repairs
• System running efficiently otherwise
• Heat exchanger is intact
Replacement makes sense when:
• Furnace is 15–20+ years old
• Repair cost exceeds $1,000
• Recurring repairs in recent seasons
• High gas bills despite normal use
• Cracked or suspect heat exchanger
Heating & Cooling in One System
Heat Pump Repair & Installation
Heat pumps provide efficient heating and cooling from a single system — transferring heat rather than generating it, which can significantly reduce energy costs compared to a traditional furnace and AC combination. We repair, maintain, and install heat pumps for St. Louis homeowners looking for a more energy-efficient option. Not sure if a heat pump is the right fit for your home? We’ll assess your situation honestly — including whether St. Louis winters affect performance — and help you make an informed decision.
Radiant Heating
Boiler Service & Repair
We service and repair boiler systems for St. Louis homes. Boilers provide reliable radiant heat — quieter and often more even than forced-air systems — but they require specialized expertise when problems arise. Our technicians have the hands-on experience to diagnose and repair all common boiler issues, including pressure problems, circulation failures, pilot issues, and zone control malfunctions. Call (314) 471-7625 to schedule boiler service.
Common Questions
Heating Questions, Answered Honestly
How quickly can you respond to a heating emergency?
We answer emergency calls 24/7, including weekends and holidays. Call (314) 471-7625 and you’ll reach us directly — not an answering service. We dispatch as quickly as possible and treat heating failures as the emergencies they are in winter.
Why is my furnace blowing cold air?
The most common causes are a failed igniter, a dirty flame sensor, a tripped limit switch, or a gas supply issue. Some are straightforward fixes — others point to a more serious problem like a cracked heat exchanger. Call us and we’ll diagnose it accurately on the first visit.
Do you service all furnace brands?
Yes. We repair and maintain all major brands — Trane, Carrier, Lennox, American Standard, Rheem, Goodman, York, Amana, and more. As an authorized Trane dealer, we also offer new Trane furnace installations with full manufacturer warranty support.
How long does a furnace installation take?
Most residential furnace installations are completed in a single day. We’ll give you a clear timeframe before we start, keep the work area clean, and make sure your system is running and calibrated before we leave. You won’t spend a night without heat.
Should I repair or replace my furnace?
A useful rule: if your furnace is over 15 years old and the repair costs more than $800–1,000, replacement usually makes more financial sense — especially when today’s high-efficiency units can noticeably reduce your monthly gas bill. We’ll show you the numbers, no pressure either way.
What areas do you serve?
We serve the greater St. Louis metro area including Chesterfield, Ballwin, Kirkwood, Webster Groves, Creve Coeur, Manchester, Maryland Heights, Des Peres, and surrounding communities.
What’s included in a furnace tune-up?
Our standard furnace tune-up includes a heat exchanger inspection, burner cleaning, igniter and flame sensor check, flue and venting inspection, filter check, thermostat calibration, electrical connection tightening, and a full system performance test. We’ll flag anything that needs attention before it becomes a breakdown.
Is a heat pump better than a furnace for St. Louis winters?
It depends. Heat pumps are highly efficient in moderate cold but can struggle in extended sub-freezing temperatures without a backup system. For St. Louis winters, a dual-fuel system — heat pump paired with a gas furnace backup — often gives you the best of both. We’ll help you evaluate the right option for your home and budget.
Furnace Problems? We’re Available 24/7.
Call for emergency repair, a free estimate on a new system, or to schedule annual maintenance. St. Louis’s locally owned heating team — honest answers, no runaround.