GOOD
12k Prime Mini Split
Single Zone System • 12,000 BTU
- Energy efficient cooling for small garages
- Wall mounted indoor unit + outdoor condenser
- Professional garage mini split installation
Installed Price
$3,999
Struggling with a garage that stays hot and humid year-round? We specialize in professional garage mini split installation across Southwest Florida, delivering properly sized ductless systems designed for reliable cooling and humidity control. Every install includes secure mounting, clean line-set routing, vacuum testing, and a full performance check so your mini split runs efficiently, quietly, and the way it’s meant to from day one.
✅ – Licensed & insured HVAC specialists
✅ – Correct BTU sizing for your garage
✅ – Energy-efficient ductless solutions
✅ – Local Southwest Florida Technicians
✅ – Clean, Code-Compliant Installation
In Southwest Florida, garages are built for storage not comfort. Direct sun on the garage door, trapped heat under the roofline, and constant humidity can turn the space into the hottest part of the home. Trying to cool it with a window unit or by “letting the house AC reach it” usually doesn’t work because the garage loses cooled air fast and isn’t designed for balanced airflow.
Sun-Loaded Garage Doors Trap Heat Fast: A south- or west-facing door can soak up heat for hours, and that warmth radiates into the garage long after the sun starts dropping.
Humidity Makes the Space Feel Even Hotter: Florida moisture hangs in the air, so even when the temperature dips, the garage still feels sticky, heavy, and uncomfortable.
Garages Lack Proper Airflow By Design: Most garages don’t have dedicated supply and return airflow like the living space, so “borrowing” cooling from the house rarely delivers real comfort.
Heat Builds Up From Everyday Use: Cars, freezers, water heaters, tools, and workouts add heat load quickly—so the temperature climbs again as soon as the door closes.
If you want a garage that stays comfortable, a properly sized ductless mini split—installed the right way—gives you controlled cooling and better humidity control without overworking your home system.
Our ductless mini split garage installation is built around getting the setup right from the start. We do a proper load calculation and BTU sizing, then place the wall-mounted indoor unit where it can actually move air through the space. Outside, we set the outdoor condenser unit in a spot with good airflow, run a clean refrigerant line set, and install the condensate drain line correctly so you don’t end up with water issues later.
The result is stable cooling that feels consistent, not “cold for five minutes then sticky again.” With an inverter-driven (variable speed) compressor, the system can hold a steady comfort level instead of constantly blasting on and off. You get zoned comfort in the garage, better humidity control, and a space you can finally use daily without dreading the heat.
A garage mini split is one of the simplest ways to get real comfort in a space that was never built to stay cool. Instead of trying to push your home’s AC harder or relying on temporary fixes, a ductless mini split system gives your garage its own reliable cooling setup—built for Southwest Florida heat and humidity.
A mini split cools the garage without running new ducts. That means less disruption, less mess, and a cleaner install compared to traditional HVAC add-ons.
Your garage gets its own dedicated comfort zone. A single zone system runs separately from the home, so you can cool the garage when you need it without affecting the rest of the house.
Because there’s no duct loss, mini splits can deliver energy efficient cooling right where it’s needed. Many systems use an inverter driven compressor (variable speed), which helps maintain steady comfort instead of blasting on/off.
A properly sized mini split AC for garage is designed to handle the high temperatures garages reach in summer—especially when the sun hits the door and walls for hours.
This is a big one in Florida. Mini splits support better humidity control, which helps the garage feel less sticky and helps protect tools, equipment, and stored items from moisture issues.
Compared to many window or portable units, mini splits are typically much quieter. That’s a big win if you’re using the garage as a gym, workshop, or hobby space.
TLS Air Conditioning provides garage mini split installation for homeowners who want reliable cooling in a space that usually stays hotter and more humid than the rest of the home. If you’re planning to install a mini split in a detached garage, an attached garage, or an insulated garage, we build the setup around your layout and daily use—so the system cools evenly and the garage actually feels comfortable.
As a licensed & insured HVAC company, we start every mini split installation for garage with an on-site evaluation and a proper load calculation to avoid sizing mistakes. That means we don’t push a random unit—your BTU capacity is chosen based on square footage, ceiling height, insulation, sun exposure, and air leaks. For many garages, that lands in common ranges like a 12,000 BTU system or 18,000 BTU mini split, but we confirm what fits your space before installation. We install trusted equipment from Mitsubishi and Daikin, and we can also provide value-focused options like Pioneer when that makes sense for your budget.
Our installation includes the wall mounted indoor unit, the outdoor condenser unit, a clean refrigerant line set, and a properly routed condensate drain line. Electrical is handled safely with the right disconnect and breaker setup, and we finish with vacuum pump testing and full system commissioning to make sure the system is cooling correctly before we leave. If you’re ready to hire a garage mini split installer, we’ll help you get a setup that performs well in Southwest Florida heat and humidity—without the mess, noise, or temporary fixes.
Single Zone System • 12,000 BTU
Inverter Driven Compressor • High SEER Rating
Heat Pump Mini Split • Premium Performance
Choosing the right BTU capacity is critical for long-term performance. An undersized system will struggle in peak Southwest Florida heat, while an oversized unit can short-cycle, reduce efficiency, and fail to control humidity properly. We size every garage mini split based on square footage, ceiling height, insulation level, sun exposure, and how you use the space.
| Garage Type | Square Footage | Typical BTU Range |
|---|---|---|
| 1-Car Garage | 200–400 sq ft | 9,000–12,000 BTU |
| 2-Car Garage | 400–600 sq ft | 12,000–18,000 BTU |
| 3-Car Garage | 600–900 sq ft | 18,000–24,000 BTU |
| Large Workshop | 900+ sq ft | 24,000+ BTU |
*These are general estimates only. Your actual requirements may vary based on multiple factors specific to your garage.
An insulated garage (walls, ceiling, and garage door) holds conditioned air far better, so your BTU needs are usually lower. In an unconditioned space, heat pours in through the door and drywall, forcing the system to run longer and harder. For accurate garage mini split installation sizing, insulation level is one of the biggest inputs in a proper load calculation—and it directly impacts comfort and operating cost.
Most quick sizing assumes an 8-ft ceiling. If your garage has 10-ft, 12-ft, or vaulted ceilings, you’re conditioning more air volume, which increases the required cooling capacity. Ceiling height changes the final proper system sizing and can be the difference between steady comfort and a unit that struggles during peak hours.
In Southwest Florida, sizing isn’t only about temperature—it’s also about humidity control. Intense sun, high dew points, and hot afternoons create heavy heat gain. A correctly sized ductless mini split system with inverter-driven / variable speed compressor performance can maintain stable comfort without constant cycling, helping protect efficiency and indoor air comfort.
A storage garage needs less capacity than an active garage workshop or garage gym. Tools, freezers, welding equipment, vehicles, and even frequent door openings add heat load fast. The more activity and equipment, the more your system sizing must account for real-world demand—so your garage stays truly temperature controlled.
System performance depends not only on installation quality but also on the equipment itself. We work with trusted ductless mini split manufacturers known for reliability, efficiency, and proven performance in Florida’s climate.
Our team installs and services ductless mini split systems from leading brands that meet current efficiency standards and are well suited for high heat, humidity, and long operating cycles. Equipment is selected based on compatibility, system requirements, and long-term support availability rather than brand preference alone.
Working with established manufacturers allows us to provide dependable installations, accurate repairs, and proper replacement options while maintaining access to manufacturer warranties and technical support. This ensures each system we install or service is backed by both professional workmanship and proven equipment.
System recommendations are always based on the needs of the space and operating conditions, ensuring the selected equipment delivers consistent performance and efficiency over time.
Our licensed HVAC technicians perform a detailed load calculation to determine the right BTU sizing and proper system sizing for your garage—based on insulation quality, ceiling height, sun exposure, humidity, and how you use the space (workshop, gym, storage, or a converted garage). In Southwest Florida, accurate sizing is the difference between steady comfort and a system that wastes energy.
An undersized unit can struggle during peak heat and run constantly. An oversized unit can short cycle, reduce humidity control, and wear out faster. We size your ductless mini split system correctly from the start so it runs efficiently, maintains consistent temperature, and avoids costly corrections later.
No mystery, no shortcuts. Here’s how we take your garage from “too hot to enter” to a space you actually use. Fully permitted, properly sized, and commissioned the right way.
We start with a quick on-site visit to understand your garage and what you want to use it for—storage, a garage gym, a workshop, or daily parking. We also look at the layout so we can plan the best placement for the indoor unit and outdoor condenser without making the install look messy.
Next, we do a proper load calculation to choose the right BTU capacity. We check key sizing factors like garage square footage, ceiling height, insulation level, sun exposure, and air leaks around the garage door. This step helps prevent two common problems: a unit that’s too small and can’t keep up, or a unit that’s too big and short-cycles, leaving the space feeling “cool but sticky.”
Once sizing is confirmed, we help you choose the right ductless mini split system for your garage. If you’re selecting from brands like Mitsubishi, Daikin, or Prime, we guide you based on performance needs and budget. We also plan the cleanest route for the refrigerant line set, condensate drain line, and electrical so the finished job looks professional.
On installation day, our licensed HVAC technician mounts the wall mounted indoor unit where it can move air evenly across the garage. Then we set the outdoor condenser unit in a spot with proper airflow and service access. We install the mounting bracket, run the refrigerant line set, add line hide cover (when needed), and connect the condensate drain line correctly to avoid water issues.
We handle the electrical side safely with the correct disconnect box and circuit breaker setup. Everything is installed to meet code compliant installation standards, because a clean install isn’t just about looks—it’s also about safety and long-term reliability.
After installation, we complete vacuum pump testing, confirm proper refrigerant charging, and perform full system commissioning. We check airflow, temperature drop, and overall performance to make sure your garage mini split is cooling the way it should before we leave.
Before we wrap up, we walk you through the controls, basic settings, and simple care tips so you feel confident using the system right away. If you ever need help later, our team is available for follow-up support, service, and maintenance.
Why Choose TLS Air Conditioning
When it comes to garage mini split installation, precision matters. The difference between a system that performs for years and one that struggles in peak heat often comes down to how it was installed. At TLS Air Conditioning, we focus on correct sizing, clean workmanship, and proper commissioning so your system runs the way it was designed to.
All work is completed by a Florida state licensed and fully insured HVAC contractor, following local codes and manufacturer installation standards.
We work exclusively with ductless mini split systems to maintain consistent installation quality and long-term reliability.
Garage installations require careful evaluation of airflow, load demand, and operating conditions rather than generic assumptions.
Each system is sized to match the space and usage conditions, helping prevent efficiency loss and uneven performance.
Installations, repairs, and replacements are completed with attention to safety, organization, and respect for the property.
All work is supported by a workmanship guarantee along with applicable manufacturer warranties.
We install ductless mini splits in garages throughout Lee, Collier, Charlotte, and Sarasota counties. Fully licensed, permitted, and done in one day.
Don't see your city? If you're anywhere in Lee, Collier, Charlotte, or Sarasota County — chances are we cover you. Call us and we'll confirm same day.
📞 Call Us NowTotal installed cost typically ranges from $2,500 to $6,000+ in Southwest Florida. This is an all-in number that includes the unit, refrigerant line set, mounting hardware, electrical disconnect, refrigerant charge, permit fees, and labor. The main variables are unit size (BTU capacity), brand, and whether a new dedicated 240V circuit needs to be run which is common in detached garages and adds to the total. We provide flat-rate quotes with no hidden charges after your free on-site assessment.
For most Southwest Florida garages, the right size is larger than national sizing charts suggest. As a starting point: a 1-car garage (~300 sq ft) needs 12,000 BTU; a 2-car garage (~500–600 sq ft) needs 18,000 BTU; a 3-car garage (~750–900 sq ft) needs 24,000 BTU. However, Florida’s extreme heat gain, uninsulated metal garage doors, and high humidity all push requirements higher. We always perform a Manual J load calculation — not a square-footage guess — to determine the correct size for your specific space.
Yes, but the system must be sized significantly larger to compensate. An uninsulated Southwest Florida garage — especially one with a metal door facing west or south — can have double the heat gain of an insulated space, which means the standard BTU rule dramatically undersizes the unit. We account for all of this in our load calculation. If you plan to use the space daily, we’ll also discuss the ROI of adding basic ceiling insulation, which can reduce ongoing energy costs significantly.
Yes — a ductless mini split is the best cooling solution for a garage gym in Southwest Florida. It cools aggressively, dehumidifies actively (critical at 85%+ summer humidity), and operates quietly enough not to interfere with workouts. For gym spaces, we size the unit to account for the additional heat load generated by exercising bodies — typically 600–900 BTUs per person — on top of the ambient load. An undersized unit will never keep up during a heavy session in a Florida summer.