Furnace
Repair

No heat? We answer emergency calls 24 hours a day, 7 days a week. Our licensed technicians diagnose fast, repair right, and get your family warm — often the same day you call.

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Furnace Repair in Big Rapids, MI

Fast, Reliable Furnace Repair — Day or Night

A broken furnace in a Michigan winter isn’t just uncomfortable — it’s urgent. Stratz Heating & Cooling has been responding to furnace emergencies across Mecosta County since 1970.

Whether your furnace won’t turn on, is short cycling, making strange noises, or running but not heating, our technicians carry the diagnostic tools and parts to get most furnaces running in a single visit. We work on every major brand — gas, oil, and electric — and we never recommend a replacement unless it’s genuinely your best option.

No upselling. No unnecessary parts. Just honest diagnosis, quality repairs, and a system that works the way it should.

Know the Warning Signs

Is Your Furnace Telling You
Something Is Wrong?

These are the most common signs Michigan homeowners notice before a furnace fails completely — don’t wait for a total breakdown.

01

No Heat or Weak Heat

If your furnace runs but rooms stay cold, or certain areas of the house don’t heat, you likely have an airflow issue, faulty heat exchanger, or failing blower motor.

02

Short Cycling

Your furnace turns on, runs briefly, shuts off, and repeats. Short cycling strains the system and is often caused by a dirty filter, overheating, or a faulty thermostat.

03

Unusual Noises

Banging, squealing, rattling, or humming from your furnace are red flags. Each sound points to a different problem — from loose components to a failing motor.

04

Spiking Energy Bills

A sudden jump in your gas or electric bill — without a big change in temperature — often means your furnace is working harder than it should due to reduced efficiency.

05

Yellow or Orange Flame

A healthy gas furnace burns blue. A yellow or orange flame signals incomplete combustion and possible carbon monoxide production — this needs immediate attention.

No Heat at All

Complete furnace failure in a Michigan winter is an emergency. Don’t wait — call us immediately. We respond 24/7 and prioritize no-heat calls year-round.

How It Works

Our Furnace Repair
Process — Step by Step

You Call

Call our 24/7 line. A real person answers — no automated menus, no voicemail.

We Dispatch

A licensed technician is dispatched — often within 1–2 hours for emergencies in our service area.

We Diagnose

Full system diagnostic — we find the root cause, not just the symptom, using professional tools.

You Approve

We give you an upfront, itemized quote. No work begins until you’ve approved the price in writing.

Repaired & Warm

We complete the repair, test the full system, and walk you through what was done before we leave.

Real Reviews

What Big Rapids
Homeowners Say

Stratz Heating & Cooling, Inc. place picture
4.9
Based on 757 reviews
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Melissa DeNiel profile picture
Melissa DeNiel
1 week ago
My furnace went out on a Sunday morning. Nick was great. He got here within a few hours. Found the problem and was able to fix it within an hour.! STRATZ Has always been very, very helpful!
Shelly Culbert profile picture
Shelly Culbert
1 week ago
Caleb did a great repair for our air conditioner. He communicated the problem well and was efficient.
vicki olson profile picture
vicki olson
2 weeks ago
My technician (Reese) did an excellent job finding the source of the issue and had it resolved it quickly. Reese is very knowledgeable!
Robert Teeter profile picture
Robert Teeter
2 weeks ago
Stratz designed and installed our original heating & AC system in our new house 17 years ago. It is a high-efficiency 3-zone system, and we have been extremely pleased with it. In addition, we have used Stratz every year for our annual inspections and check-ups, as well as the occasional repair and replacement. All of Stratz's technicians are very knowledgeable and experienced, and have always been very friendly and courteous. I wholeheartedly recommend Stratz without any reservations to anyone looking for a high quality professional heating and AC service.
Jeff Wildey profile picture
Jeff Wildey
4 months ago
Stratz is the BEST!! Fixed my furnace in no time flat. Reece was a professional to the core and had us warm on a cold winter day in no time. Excellent job!!! Love these guys!
Carol Telford profile picture
Carol Telford
4 months ago
Caleb was my technician. He replaced my blower on my furnance. He was kind enough to come back and explain the blower furnance noise after installation.

Not knowing other prices, i have nohing to compare the expense to.

I surely appreciated them, for it was a very cold night.
Nancy Padilla profile picture
Nancy Padilla
4 months ago
We had a leak in our on demand water heater at our cottage. We found it on our arrival after being gone for several weeks. Called them, Nick came within a half hour. Got it evaluated, turned hot water off and put a plan for replacement - this was a Friday afternoon. Got a call on Monday with our options, Tuesday afternoon Chad and his assistants were there. The install was great. Very professional, left everything clean and neat, answered all my husbands questions. Awesome job to all of you. Highly recommend!
Olya Duzey profile picture
Olya Duzey
6 months ago
We were very pleased with the responsiveness and quality of the work of the team at Stratz.
Reece was available to help with a furnace that decided to misbehave over the Christmas holidays. He let us know in advance of his arrival, diagnosed and fixed the problem quickly, and was courteous and professional throughout.
We had a similar good experience with Jacob in November on another problem. He was also thoroughly professional, courteous and helpful.
Highly recommend both technicians and the team at Stratz.
Gabrielle Bays profile picture
Gabrielle Bays
7 months ago
Caleb was awesome. He came the same day I called and although he had already put in a full day he stayed as long as it took. Not only did he fix a problem that has been ongoing for several years he was attentive, professional and very personable. My exceptionally shy grandson took to him; repeatedly watching and talking to him, not usually done with ANY stranger. Caleb is special. I know who to call now and will look into maintenance plans. Thanks for all you do.
How quickly can you respond to a furnace emergency?

For no-heat emergencies in our primary service area (Big Rapids, Reed City, Evart, and surrounding communities), we typically respond within 1–2 hours. We answer calls 24 hours a day, 7 days a week — including weekends, holidays, and the middle of the night. Call (231) 796-3717 any time.

A good rule of thumb is the “5,000 rule” — multiply the furnace age by the repair cost. If that number exceeds $5,000, replacement is often the smarter long-term investment. We’ll give you an honest assessment: if a repair makes sense, we’ll repair it. We never push replacements just to sell equipment.

Short cycling is most commonly caused by a clogged air filter restricting airflow, an overheating system triggering safety shutoffs, a faulty thermostat, or a dirty flame sensor. Start by checking your filter — if it’s gray and clogged, replace it. If the problem continues, call us for a diagnostic. Left unchecked, short cycling causes early system failure.

Yes — a yellow or orange flame on a gas furnace signals that the gas isn’t burning completely and may indicate a carbon monoxide leak. A healthy burner flame should be blue with a small yellow tip. If your flame is mostly yellow, turn off the furnace and call us immediately. Don’t run the system until a technician has inspected it — carbon monoxide is colorless and odorless.

Furnace repair costs vary significantly based on what part has failed and the furnace brand. Minor repairs (flame sensors, igniters, thermostats) are typically on the lower end. Major repairs (heat exchangers, control boards, blower motors) cost more. We charge a diagnostic fee that is credited toward any repair we complete, and we always give you a written quote before beginning any work. Financing is available for larger repairs.

Common Questions

Furnace Repair
FAQ

Whether your furnace won’t turn on, is short cycling, making strange noises, or running but not heating, our technicians carry the diagnostic tools and parts to get most furnaces running in a single visit. We work on every major brand — gas, oil, and electric — and we never recommend a replacement unless it’s genuinely your best option. No upselling. No unnecessary parts. Just honest diagnosis, quality repairs, and a system that works the way it should.

While You’re Here

Explore Our
Other Services

Commercial HVAC

Keep your business comfortable, efficient, and operational with professional commercial HVAC services.

Extended Warranties

Protect your HVAC investment long after the manufacturer warranty expires.

Service Agreements

Protect your heating and cooling investment with a professional service agreement.

Preventive Maintenance

Regular HVAC maintenance helps prevent unexpected breakdowns, improve energy efficiency.

Indoor Air Quality Specialists

The air inside your home can contain dust, allergens, pet dander, mold spores, and other pollutants.

Upgrade or Replacement

When repairs become frequent and energy bills continue to rise.

Ready When You Are 

Don’t Spend Another Night
Without Heat

Call now or schedule online. Our technicians are standing by 24 hours a day to get your furnace running and your family warm.