Furnace Repair
Furnace Repair in Bloomington, MN
Professional Heating System Diagnosis & Repair
When your furnace stops heating on a Minnesota winter day, you need a contractor who understands the problem and gets it fixed fast. Southside Heating & Air Conditioning brings decades of expertise to furnace repair, with NATE-certified technicians who know Lennox systems and every major brand. We’ll pinpoint what’s wrong, explain your options, and make your repair with the quality and honesty your home deserves. Whether it’s an igniter failure, a blower problem, or a thermostat issue, we’re equipped and ready.
Get Your Furnace Repaired Today
When your furnace isn’t heating, every hour counts — especially in Minnesota winters. Call us or use our online scheduling to book a repair appointment. Our technicians will arrive on time, diagnose your system thoroughly, and solve the problem.
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Why Choose Us
Why Bloomington Homeowners Trust Southside Heating & Air Conditioning for Furnace Repair
NATE-Certified & EPA-Licensed Heating Specialists
Our repair team holds national NATE certification and EPA credentials, proving they’re trained to diagnose and fix modern furnace systems safely and effectively. You’re getting qualified professionals who know heating inside and out.
Lennox Premier Dealer with Multi-Brand Mastery
As a Lennox Premier Dealer with factory training, we repair Lennox furnaces with expert precision. We also service GE, Ruud, Navien, and other major brands, so no matter what heating system you own, we can fix it right.
Three Generations of Heating Experience
Backed by 48 years in the business, our family-owned contractor has seen every furnace problem and knows how to solve it. We’re not a chain — our reputation is built on doing honest work for our neighbors.
Thorough Diagnosis You Can Count On
Before we recommend anything, we test your furnace thoroughly and explain what we find in plain language. We’ll tell you when repair makes sense and when replacement would save you money over time. BBB A+ Rated because we’re honest about what your system needs.
Fast Repairs with Written Warranty
Every repair is tested, documented, and backed by our warranty. If something doesn’t work the way it should after we leave, we make it right. You’ll have written proof of what we fixed and the terms that protect your investment.
QI Certified & Xcel Energy Trusted
Our Xcel Energy QI certification demonstrates our commitment to efficient heating repairs that keep your bills reasonable. We’re held to higher standards and we meet them.
Warning Signs
Signs Your Furnace Needs Professional Repair
A furnace often signals trouble before it fails completely. Catching these warning signs early can save you from a complete heating failure during a cold snap. If you notice any of these symptoms, call a NATE-certified technician right away — don’t wait until you’re sitting in a cold house.
Furnace Won’t Start or Ignite
If your furnace refuses to turn on or shuts down immediately after startup, the problem could be a faulty igniter, a broken limit switch, thermostat miscommunication, or a tripped safety switch. These are all repairable issues, but they need professional diagnosis. Running a non-heating furnace can lead to more serious damage, so get it checked right away.
Strange Noises: Banging, Squealing, or Grinding
Furnaces should run quietly. Loud noises — especially banging during startup, squealing throughout the cycle, or grinding sounds — signal worn bearings, a failing blower motor, a cracked heat exchanger, or loose internal components. Ignore these sounds and you risk catastrophic failure. We pinpoint the source and stop the problem before it spreads.
Weak Heat or Uneven Heating Throughout Your Home
If some rooms are cold while others feel warm, or your furnace runs constantly without reaching the set temperature, it could be a clogged filter, ductwork leaks, a faulty blower motor, or a thermostat problem. We’ll identify the cause and restore even, comfortable heating to every room.
Rising Heating Bills Without More Usage
When your furnace loses efficiency, it works harder and costs more to operate. Causes include a dirty heat exchanger, worn components, ductwork leaks, or an aging system losing performance. We audit your system, clean and repair what we find, and recommend whether replacement would serve you better long-term.
Frequent Repairs on an Aging System
As a furnace ages, its components wear and failures grow more frequent. If yours needs repair every other season, a new, high-efficiency system often costs less over time than continued service calls — plus you gain better temperature control and reliability. We’ll assess your furnace honestly and tell you whether repair or replacement makes more sense.
Yellow Pilot Light, Burning Smells, or Soot
A yellow pilot light instead of blue, or unusual burning, mustiness, or acrid odors, suggest incomplete combustion or a cracked heat exchanger. These are serious safety concerns requiring immediate inspection. Call us right away if you notice any of these signs.
Our Process
Our Furnace Repair Process
1. Complete System Inspection & Diagnostics
We start by listening to you, then run a thorough inspection using professional diagnostic tools to understand exactly what’s wrong.
- Visual inspection of the burner assembly, igniter, and flame quality
- Continuity testing of the blower motor, limit switch, and safety controls
- Thermostat communication and calibration check
- Heat exchanger examination for cracks or carbon buildup (critical safety check)
- Airflow measurement and ductwork integrity assessment
- Gas pressure and combustion efficiency testing
2. Clear Explanation & Repair Options
Once we know what’s wrong, we sit down with you and explain the problem in plain language before any work begins.
- Describe the failure in terms you can understand
- Provide a written upfront quote with no surprises
- Explain repair versus replacement so you make an informed decision
- Discuss timeline, warranty coverage, and payment options if needed
- Answer every question so you approve the work with full confidence
3. Precision Furnace Repair & Parts Replacement
Our NATE-certified technicians execute repairs with skill and precision, using OEM and quality aftermarket parts that match your system’s specifications.
- Replace failed igniters, limit switches, and relays with OEM-quality parts
- Repair or replace faulty blower motors and draft inducers
- Clean or replace heat exchangers as needed
- Fix thermostat wiring and control board issues
- Seal gas line connections and test for leaks
- Replace air filters and restore proper airflow
4. Complete System Testing & Verification
Before we call the job done, we test your furnace under full operating load to confirm it’s working properly.
- Full-cycle startup and shutdown testing
- Burner flame quality verification and combustion analysis
- Thermostat response and temperature control confirmation
- Airflow balance testing throughout the home
- Safety switch and limit control verification
- Sound and vibration assessment to ensure quiet operation
5. Documentation, Warranty & Ongoing Support
We close out every repair with clear records and a path forward so you know exactly what was fixed and what to expect.
- Written documentation of all parts replaced and labor performed
- Explanation of warranty terms for parts and labor
- Maintenance tips to help prevent future failures
- Information about our Maintenance Plan for priority member service
- Clear contact information for any follow-up questions or concerns
Common Repairs
Common Furnace Repairs We Handle
Over decades of heating system service, we’ve encountered and fixed virtually every furnace problem. Below are the repairs we handle most often. Whatever is wrong with your furnace, our NATE-certified team has the training and diagnostic equipment to identify and fix it correctly.
Igniter & Pilot Light Repairs
A faulty igniter or pilot assembly prevents your furnace from starting. We test and replace failed igniters, clean pilot assemblies, and verify flame quality to ensure reliable ignition. A working igniter is essential to winter comfort.
Blower Motor & Fan Replacement
If air isn’t blowing from your vents or the blower runs continuously, the problem is often a motor failure or a stuck bearing. We replace the blower motor and restore proper heating airflow to every room.
Heat Exchanger Inspection & Repair
The heat exchanger transfers furnace heat to the air in your home. Cracks or corrosion can create safety hazards and heating losses. We inspect for damage and recommend repair or replacement as needed. Safety is always our priority.
Thermostat Troubleshooting & Replacement
Sometimes the issue isn’t the furnace — it’s the thermostat. We test communication between your thermostat and system, replace faulty units, and can upgrade you to a smart thermostat for better control and energy savings.
Limit Switch & Safety Control Repair
A faulty limit switch or safety control can shut your furnace down unexpectedly or prevent it from starting. These sensors protect your home and furnace. We test, clean, and replace them to restore reliable operation.
Ductwork Leak Diagnosis
Leaky ducts waste heated air and reduce efficiency. When airflow is the complaint, we check the ductwork as part of the diagnosis and show you where your system is losing heat and what it is costing you. Duct sealing and insulation aren’t services we offer, so if that turns out to be the fix we’ll tell you plainly rather than sell you something we don’t do.
Gas Line Safety & Connection Repair
Loose fittings, corroded connections, or failed seals can prevent your furnace from igniting safely. Our licensed technicians ensure every gas connection is secure, leak-free, and meets all safety codes.
Common Questions
Frequently Asked Questions About Furnace Repair
A younger furnace with a single component failure is usually worth repairing. When a furnace is aging, breaks down repeatedly, or needs a major component like a heat exchanger, replacement often makes more sense financially over time. We assess your specific situation and give you honest options.
First, check that your thermostat is set to “heat” and the temperature setting is higher than the current room temperature. Check your air filter and replace it if it’s dirty or clogged. If those steps don’t solve it, give us a call and we’ll get you scheduled for professional diagnosis. Avoid running the system if it’s not heating, as that can cause further damage.
Repair costs depend on what’s wrong. A simple fix like an igniter replacement sits at the lower end, while a motor or heat exchanger repair runs higher. We always diagnose the problem first, then provide a written upfront quote before starting any work so you know the cost and can approve it with confidence.
In most cases, we can replace the failed component and restore your furnace to full operation. Replacement becomes the better option when a furnace is very old, repair costs represent a large share of what a new system would cost, or multiple major components are failing. We’ll explain your options clearly.
Most repairs take 1–4 hours depending on the problem. Simple jobs like igniter replacement or filter changes take under an hour. More complex work like a motor or heat exchanger repair can take longer. We’ll give you a time estimate when we provide the quote.
Yes. We provide a warranty on parts and labor for all repairs. The specific terms depend on the type of repair and parts used. We’ll explain the warranty coverage in writing when we complete the work, and we stand behind it.
We repair Lennox, GE, Ruud, Navien, and virtually every major furnace brand. As a Lennox Premier Dealer, we have deep expertise on Lennox systems, but our technicians are trained across all major manufacturers. Bring us any furnace and we can diagnose and repair it.
Absolutely. Annual fall maintenance catches worn components, cleans buildup, tests safety systems, and verifies efficiency. A well-maintained furnace is far less likely to break down when you need heat. Our Maintenance Plan includes annual tune-ups and service discounts.
Our Maintenance Plan includes annual furnace inspection and cleaning, safety system testing and discounted service rates. It’s designed to keep your heating system reliable through the winter and to reward you with member benefits on other work throughout the year.
An inefficient furnace, poor insulation, air leaks in ductwork, a thermostat malfunction, or an aging system can all spike heating costs. We perform a complete energy audit, identify efficiency losses, and recommend targeted solutions from furnace replacement to smart thermostat installation. We’ll point out duct leaks if we find them, but sealing ductwork isn’t work we take on.
Reliable Heating Support When You Need It
Furnace repair is just one part of keeping your home warm and comfortable. We offer a full range of heating and comfort services to support you year-round — including a maintenance plan for priority member service, current specials that can bring down the cost of larger work, and the certifications behind our team.
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Furnace Annual maintenance prevents costly breakdowns and keeps your furnace running efficiently all winter long.
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Heat Pump Modern heat pumps provide both heating and cooling. Keep yours working reliably with professional repair service.
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Indoor Air Quality Clean, healthy air paired with reliable heating makes your home truly comfortable.
Where We Serve
Furnace Repair Service Areas Across Minnesota
Southside Heating & Air Conditioning serves Bloomington and surrounding communities with professional furnace repair when you need it most. Whatever part of the metro you call home, we’re your trusted heating repair partner.
Don’t See Your Location?
We serve communities across the Twin Cities metro — and even if your town isn’t listed, there’s a good chance we can help. Give us a call at 952-884-2453 or send us a message, and we’ll let you know right away if you’re in our service area.
Primary Service Cities
Additional Communities We Serve
- Minnetonka, MN
- Lakeville, MN
- Excelsior, MN
- St. Louis Park, MN
- Hopkins, MN
- Roseville, MN
- Eagan, MN
- Prior Lake, MN
- Plymouth, MN
- Rosemount, MN
- Savage, MN
- Farmington, MN
- Shakopee, MN
- Chanhassen, MN
- Maple Grove, MN
- Brooklyn Park, MN
- Brooklyn Center, MN
- Fridley, MN
- New Hope, MN
- Golden Valley, MN
- Chaska, MN
Furnace Repair You Can Trust in Bloomington
When your furnace fails, you need honest service from a team that cares about your home and your family’s comfort. Southside Heating & Air Conditioning brings 48 years of heating expertise to every repair, and as a family-owned contractor our reputation depends on serving our neighbors well. We’re NATE-certified, EPA-licensed, and committed to getting your furnace back up and running with quality repairs and upfront quotes. Call us today or schedule online — we’re ready to restore your heat.
We also offer flexible financing through Service Finance to make larger repairs manageable, and our maintenance plan helps prevent future breakdowns so you can rely on consistent, efficient heating all winter long. Ask about our current specials while you’re scheduling.
