AC Repair in San Marco
AC repair in San Marco done right — we find the actual fault, not just top off refrigerant and leave.
Older San Marco homes often have undersized or aging ductwork that undercuts even a new system — we check the ducts, not just the unit, before quoting a fix. We diagnose the cause before we quote the fix, and we give you an honest repair-or-replace answer — the math, not a sales pitch.

What we
actually do.
San Marco's historic homes are some of the most charming in Jacksonville — and some of the trickiest to cool, with original layouts never designed around modern HVAC.
We will tell you when a repair is throwing good money after bad. If your system still runs R-22 or the compressor has failed on an old unit, refrigerant and parts now cost more than the unit is worth — we give you the numbers and let you decide.
- 1Same-day diagnostics on most calls
- 2We find the real fault before quoting
- 3Honest repair-or-replace math
- 4All major brands and system types
- 5Up-front pricing, no surprises
You get the
owner.
When you call Mr Freeze for ac repair in San Marco, you do not get routed to a coordinator or a crew you have never met. The owner quotes the job, runs the job, and is on-site every day until it is done. That is how it has worked since 2025 and we have not found a reason to change it.
Why Mr Freeze?
Six promises we make on every job — and hold ourselves to from the first call to the final walkthrough.
Quality
To stay on top of your project from start to finish, ensuring complete satisfaction.
Time
To set and meet all deadlines for the duration of the entire project.
Protect
To protect and prepare your home before and during all work.
Clean
To clean up daily and leave your property as clean as we found it.
Price
To accurately price your job so your project will be free from hidden costs.
Communicate
To avoid surprises by means of consistent communication. We spell it out for you.
Our projects
A look at recent installs and repairs around Jacksonville.

Condenser replacement
New outdoor condensing unit set and connected.

Condenser install
Outdoor unit installed alongside the home.

Air handler & ductwork
New 10 kW air handler with insulated ductwork.
“I had a great experience with Mr. Freeze! Their customer service was excellent from start to finish. The technician was very informative, took the time to explain everything clearly, and answered all of my questions. The service was handled in a very professional manner, and I felt confident in the work being done. I truly appreciate the honesty and attention to detail. I highly recommend Mr. Freeze to anyone in need of reliable and professional AC service”
“Highly recommend Robert and the team at Mr. Freeze Cooling and Heating. They have saved me money on multiple jobs and have installed great equipment and have been super flexible to work with my schedule and needs!”
“I had an excellent experience with Mr. Freeze Cooling & Heating From start to finish, their team was professional, knowledgeable, and very respectful of my home and at my Business as well. They arrived on time, explained everything clearly, and completed the job quickly and efficiently. My system is running better than ever, and I can already feel the difference in comfort and energy efficiency.”
We cover all of Duval County, FL
Walk the job with the owner.
Tell us what you're thinking. We'll come look, point out what we'd do differently, and only quote what we're confident we can deliver.