System Diagnostics Services in Livonia, MI

From strange smells to poor cooling, our system check identifies issues that others miss.

Need Heating or Cooling Help? Let’s Get You Comfortable Again.

Pinpointing AC Issues Starts with the Right Diagnostic Process

When your air conditioning stops working the way it should, it’s easy to worry. But many common issues are easy to fix once you know what’s really going on. That’s where we come in.

At Comfort Craftsman, we offer Air Conditioning System Diagnostic Services in Livonia and nearby towns with one goal: to find the root of the problem and give you clear, honest options. We won’t overwhelm you with jargon or push repairs you don’t need.

We’ll show you what we see, explain the issue in plain terms, and help you choose what works best for your home and budget.

Common Signs You Need an AC Diagnostic Visit

Sometimes your AC doesn’t shut off. Other times, it won’t turn on at all. Then there are the in-between moments — when it’s blowing, but not cooling. Or making noise. Or your energy bill suddenly climbs.

These are the most common signs we see:

The system runs but doesn’t cool
The AC unit is leaking water
Thermostat not responding
Warm air coming from vents
Sudden spike in electric bills
Loud humming or banging sounds
The unit turns on and off too quickly

Don’t wait until it’s an emergency. Let’s get your system running perfectly today.

How HVAC System Diagnostics Save You Time, Stress, and Money

Before you replace parts or schedule a repair, make sure you know what the real problem is. Our air conditioning system diagnostic services are designed to take the mystery out of AC issues. That means no unnecessary repairs or surprise charges, just honest answers and smart choices.

Let’s walk through why system diagnostics are the first step in fixing your AC right.

It Pinpoints the Problem. We rule out all the usual suspects so you’re not wasting money on the wrong fix.
Prevent Bigger Issues. Catching something early keeps small repairs from turning into full replacements.
Make Smart Choices. You’ll get clear info so you can decide how to move forward without pressure.

How We Handle Every Diagnostic Call

A professional cooling system diagnostic isn’t just a glance at your unit. It’s a step-by-step process that tests performance, safety, and efficiency from every angle. Comfort Craftsman tackles these challenges all the time, whether you’re noticing inconsistent temperatures, unexpected energy spikes, or signs your system is off.

Here’s what happens during your system diagnostic and repairs:

Here’s how it goes:

We’ll schedule a time that works for you.
You’ll get a text or call when we’re on the way.
We show up on time, with clean gear and covers for your floors.
We go through your system one step at a time and explain what we find.
You’ll get honest options, priced fairly.
If you’re ready, we can often fix it the same day.

You’ll never be left in the dark or feel pressured to do something you’re unsure about.

Why Livonia Homeowners Call Comfort Craftsman First

There’s a reason homeowners across Southeast Michigan turn to us for trusted system diagnostics services. Our approach is grounded in doing what’s right, not just what’s profitable. That’s why our diagnostics are done carefully, clearly, and with respect for your home and time.

Here’s what makes us the go-to cooling diagnostics team in Livonia:

Real experience – Run by an experienced owner with 8 years in the industry.
Transparent pricing and no pushy sales – You’ll always know what you’re paying for, and we’ll never sell you anything unnecessary.
High-quality installations with industry-leading warranties – If diagnostics lead to a replacement, we’ve got your back.
Focus on clean air and healthy homes – We look beyond just cool air; your family’s health matters too.
Certified, licensed, and insured – You get real pros with years of training.
Friendly, respectful service – We treat your home like it’s ours; shoe covers, clean work, polite team.
Trusted by families across Southeast Michigan – Our reputation is built on word-of-mouth and doing what’s right.

Your comfort shouldn’t have to wait. Let our team take care of it.

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What Our Customers
Say About Us

If you want a company that strives on quality and perfection, this is your guy! We are so happy with our installation, we had both the furnace and air conditioner replaced. They listened to what we were wanting out of the new unit and so far they nailed it. Our installer was very particular and made sure that we were happy in the end. I’m telling you this is your go to company for heating and cooling!

Debra Elwell

Robert (Bobby) Wilhelm, of Comfort Craftsman HVAC, Livonia, Michigan, put a huge smile on my face this week, just in time for the 4th of July. I had purchased two heat pumps of different brands almost a year ago, one of which was successfully installed, while the other unit was deemed to be faulty and returned to the vendor (Menards), which did a good job of providing a replacement by arrangement with the product distributor. (Though this was not as easy as it sounds, as it took several months to locate and contact the distributor, only to find out that they did not provide any product servicing in Michigan or any neighboring state). However, the new unit then sat in my garage for three or so months (while we swelted in the recent 90+ heat!), as the original installer played hide-and-seek with me and every other HVAC company that I called on said they only installed their own units, not to mention that no-one was anxious to pick up on a job that another party had started. Eventually, someone from my regular HVAC company (A. J. Danboise) recommended Robert, who kindly agreed to make an exception in my case. Robert did an excellent job of installing the new unit, finally bringing to an end a frustrating drama that had lasted literally a whole year!

Eboe Hutchful

Bobby Wilhelm is an AMAZABLE human being! Bobby IS THE Comfort Craftsman! I spoke with by phone and met with in person about five HVAC professionals. I chose Bobby, because of his exemplary combination of knowledge, communication skills, competency and kindness. He really cares about his craft. He exudes integrity and intelligences. I trust him. He often conducted work while no one was home, and we felt completely comfortable. The heating and cooling works perfectly. And the job was huge. He literally built our entire duct system in the attic and installed a brand new system of forced air heating and cooling, furnace and air conditioning. He has social and emotional intelligences most of us can only dream of. Emotionally and socially poised and skilled. A bit of an artist. And certainly an indoor climate control true scientist. Did I mention that he is excellent with communication? To me that is so important. We are truly grateful and highly recommend him!

Heather

Great communication, on-time, great work and very nice

Brandon Welling

Cooling System Diagnostics FAQ

How much does an AC diagnostic visit cost?

Our diagnostic fee is fair and flat-rate. If you approve a repair during the visit, we often waive the diagnostic cost.

How long does a typical diagnostic take?

Most take 45–60 minutes, depending on the issue. We always explain findings before making repairs.

Do you service all brands?

Yes — Trane, American Standard, Mitsubishi, IBC, Navian, and more.

What if I just had a tune-up?

A tune-up and a diagnostic serve different purposes. If something’s still off, we recommend a focused diagnostic visit.

Areas We Proudly Serve

Let’s Get Your AC Working Again

Don’t let small problems turn into bigger ones. If your system isn’t cooling like it should, give us a call and we’ll figure it out.

Call Bobby at (248) 778-8025

Or click below to request a diagnostic visit today.