Furnace Repair in Eagan, MN, 24/7 Emergency Service in Winter
No heat? Weird smells? Furnace cycling on and off? When it's sub-zero, we move fast. Firm written quote first,
no upsell, no overtime upcharges. Family-owned in the South Metro since 1988.
Fill this out and a real person calls you back within an hour, not a call center.
Furnace repair in Eagan, Burnsville, Apple Valley, Lakeville, Bloomington, Eden Prairie & Inver Grove Heights.See all areas →
When Your Furnace Quits
Fast, Honest Furnace Repair, Without the Upsell
A Minnesota winter doesn't wait. When the furnace stops and the house starts dropping a degree an hour, you don't want a
sales pitch, you want it fixed. We've been repairing gas furnaces, boilers, and high-efficiency heat pumps across the
South Metro since 1988, and our approach hasn't changed: diagnose the real problem, explain the fix in plain English,
write a firm quote, and only then do the work.
Most furnace repair calls in Eagan, Burnsville, Apple Valley, and surrounding cities are handled in a single visit.
If the repair isn't worth it, say a 20-year-old furnace with a cracked heat exchanger, we'll tell you straight, and
give you a FREE second opinion if someone else has already quoted a replacement. We're also full
carbon monoxide testers, every no-heat call gets a CO check before we leave.
Common Furnace Problems We Repair
No Heat at All
Furnace won't start, often ignition, gas valve, control board, or thermostat. We'll have you warm again fast.
Blowing Cold Air
Burners lighting but no warm air, usually a blower issue, flame sensor, or limit switch tripping.
Short Cycling
Furnace turns on and off every few minutes, dirty filter, overheating, flame sensor, or oversizing.
Strange Smells
Burning plastic, rotten eggs, or musty odors. Some are harmless, some need immediate attention. Don't guess, call.
Loud Noises
Banging, rattling, squealing, or rumbling, usually motor, bearing, ignition, or duct expansion issues.
Spiking Gas Bills
Winter bill jumping with no usage change means efficiency is dropping. Sometimes a tune-up, sometimes a real repair.
Yellow Burner Flame
Healthy gas furnace flame is steady and blue. Yellow or flickering can mean incomplete combustion and possible CO.
Uneven Heat
Some rooms freezing, others warm, often blower motor, duct issues, or a furnace nearing end of life.
The Bob Boldt Difference
Why South Metro Homeowners Trust Us With Furnace Repairs
One honest quote at a time, for 30+ years. Here's what sets our repair service apart from the big-box companies.
Firm, Up-Front Quote
Written repair cost before we touch a tool, never a bigger bill at the end.
24/7 Winter Emergency
Sub-zero no-heat call at midnight? We dispatch. No overtime charges, no weekend upcharges, ever.
Carbon Monoxide Testing
Every furnace repair call ends with a CO check before we leave. Your family's safety, not just the equipment.
FREE Second Opinions
Already been quoted a replacement? We'll assess at no charge and tell you straight whether you need it.
Repairs Guaranteed
Parts and labor backed by our warranty. If it breaks again in the warranty period, we come back.
Family-Owned Since 1988
Three decades serving the South Metro through Minnesota winters. Same family. Same standards.
Our Repair Process
What Happens When You Call for Furnace Repair
Four steps. No surprises. Same process whether it's a $200 thermocouple or a full system diagnosis.
1. Fast Dispatch
Call any hour during a no-heat emergency. We confirm an arrival window before we hang up.
2. Full Diagnostic
Licensed tech checks ignition, gas, blower, electrical, controls, AND a CO test, not just the obvious symptom.
3. Transparent Quote
Written, itemized repair price. If repair costs approach replacement, we'll say so honestly and give you both options.
4. Fix & Follow-Up
Most repairs done in one visit. Work backed by warranty. We check in after the job to make sure it's running right.
No Surprise Pricing
Honest Furnace Repair Pricing in the South Metro
Most furnace repairs in Eagan and surrounding cities fall in the $150–$650 range, a flame sensor
might run $180, an ignitor $250–$350, a blower motor $450–$850, a control board $400–$700. Heat exchanger
or major gas valve repairs cost more, and we'll always walk you through repair-vs-replace math before you commit.
Diagnostic fee applied to repair, if you move forward with the fix, the diagnostic is on us
No overtime charges, sub-zero midnight emergency? Same price as a Tuesday afternoon
Repair warranty included, if the same part fails in the warranty period, we're back at no cost
Financing available, for larger repairs. 0% APR options with approved credit. See options →
What South Metro Homeowners Say About Our Furnace Repairs
★★★★★4.8from 250+ Google reviews
★★★★★
"Furnace died at 11 PM, minus 12 outside. Bob's emergency tech was at the house by midnight, diagnosed a bad ignitor, had it replaced and the heat back on before 1 AM. Charged us a fair daytime rate. Sent a thank-you card a week later. These guys are different."
Steve K.Eagan, MN
★★★★★
"Another company said we needed a new furnace, $7,500. Called Bob Boldt for a second opinion. Turned out to be a flame sensor and a dirty inducer motor. $325 total. Saved us thousands and they were straight with us the whole time."
Linda J.Burnsville, MN
★★★★★
"Furnace short-cycling, blowing cold. The tech walked us through what he was checking, found a tripped limit switch and a dirty filter we'd missed, and tested for CO before he left. Quick, honest, didn't try to sell us anything extra."
Furnace Repair Questions From South Metro Homeowners
Real questions from real customers. Got one we missed? Just ask.
Yes. We run 24/7 emergency furnace service in winter. If you're without heat and outside temperatures are below 20°F, we treat it as an emergency dispatch. There are no overtime, evening, or weekend charges, the price is the same whether you call at 2 PM or 2 AM.
Most furnace repairs in the South Metro run $150 to $650 depending on the part. A flame sensor might be $180, an ignitor $250 to $350, a blower motor $450 to $850, a control board $400 to $700. Heat exchanger or major gas valve repairs cost more and usually trigger a repair-vs-replace conversation. We always write a firm quote before we start so there are no surprises.
Our rule: if your furnace is 15+ years old, has a cracked heat exchanger, has had two or more major repairs in two years, or the current repair exceeds 40% of replacement, replacement usually pays off within a few winters through 95%+ AFUE efficiency. We'll give you a straight answer, and a FREE second opinion if someone else has already quoted replacement.
Depends on the symptom. Banging on startup, occasional short-cycling, or weak airflow can usually wait until morning. But if you smell gas, see soot around the unit, get a CO alarm, or see a yellow burner flame, shut the furnace off at the switch and call immediately. Carbon monoxide is invisible and odorless, never risk it.
Yes, on every furnace repair call. Before we leave, we test ambient CO levels and combustion CO at the flue with a calibrated analyzer. If readings are elevated, we shut down the unit, explain why, and tell you what it takes to fix it safely. CO testing is included, not an upsell.
We service all major brands: Lennox, Carrier, Trane, Bryant, Goodman, Amana, Rheem, Ruud, York, Heil, Comfortmaker, American Standard, Coleman, Payne, Tempstar, and others. If it's a gas furnace, an electric furnace, or a heat pump system in a Minnesota home, we can diagnose and repair it.
The four most common causes: (1) dirty air filter restricting airflow and overheating the unit, (2) a tripped high-limit switch from the same overheating, (3) a flame sensor that needs cleaning, or (4) a thermostat misreading temperature. Try a new filter first, if that doesn't fix it within a cycle or two, call us before it damages something bigger.
Yes. We repair gas boilers (cast iron, copper-fin, and condensing high-efficiency), and we service air-source heat pumps used as a primary or supplemental heat source. Same honest diagnostic process, same firm written quote, same warranty.
Licensed & Certified
Licensed, Certified & Trusted in the South Metro
Every badge is more than a logo, it's a verifiable standard that holds us accountable.
BBB A+ Accredited
30+ years of Better Business Bureau accreditation with the highest possible rating.
NCI Certified Contractor
National Comfort Institute certified, trained in performance-based diagnostics and combustion analysis.
Locally Owned & Operated
Family-owned and operating in the South Metro since 1988. Same family, same standards.
City of Bloomington Certified
Approved contractor for HVAC permits and mechanical work in Bloomington.
More Heating Services
Beyond Furnace Repair
When a repair isn't the right call, or once yours is fixed, we can help with the rest of your heating setup too.