Choosing between a mini split and a central air system can be tricky, especially in a desert climate like Las Vegas. Each system has its advantages, and what works for one home might not be the best fit for another.
This guide will walk you through the key differences, pros and cons, and when to consider one option over the other—so you can make an informed decision that fits your comfort goals, budget, and lifestyle.
What’s the Difference?
- Central Air: Uses ductwork to deliver cool air throughout the home. Common in newer or already-ducted houses.
- Mini Split (Ductless System): Uses individual wall-mounted units to cool specific rooms without ductwork.
Both systems rely on an outdoor compressor unit, but mini splits use small refrigerant lines instead of large duct runs.
Benefits of Central Air
- Whole-Home Cooling: Designed to cool your entire house evenly.
- Unobtrusive Design: No indoor units—just supply and return vents.
- Lower Cost (When Ducts Exist): If your home already has ductwork in good shape, central air is often the more affordable choice for full coverage.
Central air is only as good as your ductwork. If your system has air leaks or poor airflow, comfort and efficiency will suffer. Learn more about our Duct Installation & Replacement.
Benefits of Mini Splits
- Zoned Comfort: Set different temperatures for different rooms.
- No Ducts Needed: Great for garages, additions, or homes without central HVAC.
- Highly Efficient: Less energy loss since air isn’t pushed through long duct runs.
- Quiet Operation: Indoor units run quietly, often below 30 decibels.
They’re also a popular choice for homeowners trying to reduce energy bills without giving up comfort in specific areas of the house.
Quick Comparison Chart
| Feature | Central Air | Mini Split |
|---|---|---|
| Ductwork Required | Yes | No |
| Cooling Zones | One (whole house) | Multiple zones possible |
| Installation Cost | Lower (if ducts exist) | Higher per room |
| Energy Efficiency | Good (with sealed ducts) | Excellent |
| Indoor Appearance | Vents only | Wall-mounted units |
| Ideal For | Full-home cooling | Room-specific comfort |
What About Cost?
- Central Air: $6,500–$8,500 for a full system in Las Vegas
- Mini Split: $3,000–$5,000 per zone on average
Curious about the price for your home?
Try our AC Installation Estimator:
AC Installation Cost Calculator
*This is a rough estimate for reference only. For a precise quote, please call or use the link above to schedule an appointment.
Which One Is Best for Your Home?
There’s no one-size-fits-all answer. Some questions to ask yourself:
- Do you already have ductwork? Central air may be more cost-effective.
- Are you cooling the entire home or just a room or two? Mini splits can be more efficient in targeted spaces.
- Are you trying to fix a problem with uneven cooling? Either system might help, depending on the root issue.
If you’re trying to decide whether to invest in a new system or fix the one you’ve got, check out our full blog:
When to Repair vs. Replace Your Air Conditioner
Final Thoughts
Choosing between a mini split and a central air system depends on your home’s layout, your energy goals, and how you use your space. Both are solid options when installed properly and chosen for the right reason.
Looking to explore either system further? Give us a call at (702) 516-9999. We’re always happy to talk through your options.