Upgrade or
Replacement

Tired of costly repairs and inconsistent comfort? Our HVAC replacement experts help homeowners upgrade aging systems with modern, energy-efficient equipment designed for long-term performance.

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HVAC Upgrade & Replacement in Big Rapids, MI

Upgrade Your Comfort. Reduce Your Energy Costs.

Every heating and cooling system has a lifespan. As equipment ages, it becomes less efficient, more expensive to repair, and less reliable when you need it most.
Stratz Heating & Cooling has been helping homeowners throughout Mecosta County upgrade and replace HVAC systems since 1970. Whether your furnace is nearing the end of its life, your air conditioner struggles to keep up, or you’re simply looking for better energy efficiency, we’ll help you find the right solution. Our team takes the time to evaluate your home, discuss your comfort goals, and recommend systems that fit your needs—not our sales targets. No pressure. No gimmicks. Just professional guidance and expert installation.

Know the Warning Signs

Is It Time to
Upgrade or Replace Your System?

Many homeowners wait until their system completely fails before considering replacement. Here are some signs that upgrading may save you money and frustration.

01

Frequent Repairs

If you're repeatedly paying for repairs, replacement may be more cost-effective over the long term.

02

Rising Utility Bills

Older systems lose efficiency over time and often consume significantly more energy.

03

System Age Over 15 Years

Most HVAC systems become less reliable and less efficient as they approach the end of their service life.

04

Excessive Noise

Loud operation, rattling, grinding, or vibration can signal major wear and tear.

05

Poor Indoor Comfort

If your system struggles to maintain comfortable temperatures, upgrading can dramatically improve comfort.

Unsure Whether to Repair or Replace?

Our comfort specialists can evaluate your current equipment and help you make the most cost-effective decision.

How It Works

Our Upgrade
& Replacement

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.

Installed & Comfortable

We complete the repair, test system performance, and ensure everything is operating properly.

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 do I know if I should repair or replace my HVAC system?
If your system is over 15 years old, requires frequent repairs, or has experienced a major component failure, replacement may offer better long-term value.
Modern high-efficiency systems often use significantly less energy than older equipment, helping reduce monthly utility costs

Most residential system replacements can be completed within a single day, depending on the complexity of the installation.

Yes. We offer financing solutions to help make upgrading your HVAC system more affordable.

We replace furnaces, air conditioners, heat pumps, ductless systems, and complete HVAC systems.

Common Questions

Upgrade or Replacement
FAQ

Whether your Upgrade or Replacement 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.

New Installation

Whether you're replacing outdated equipment or installing a system in a newly constructed home.

Ready When You Are 

Upgrade to Better
Comfort & Efficiency

Stop investing in constant repairs and start enjoying dependable comfort. Call now or schedule a consultation to learn about your replacement options.