Ductless Mini Split System Installation
Upgrade to Efficient, Zoned Comfort Without the Ducts
If you’re looking for a cooling solution that’s energy-efficient, quiet, and customizable, a Ductless Mini Split System is the perfect upgrade. Whether you’re installing AC in a single room, garage, ADU, or full home, we provide expert mini split system installation.
We help you choose the right single-zone or multi-zone setup, install it to manufacturer standards, and ensure maximum performance from day one.
Limited Time Offer
Save on your next AC install service. Check out our current promotions!
Why Choose a Ductless Mini Split System?
Ductless mini splits offer some of the most advanced comfort and efficiency features available today.
No Ductwork Needed
Perfect for older homes, home additions, or any area where installing ducts isn’t practical.
Lower Energy Bills
High-efficiency SEER ratings help reduce monthly cooling and heating costs.
Custom Zoned Comfort
Set individual rooms or zones to different temperatures based on preference.
Whisper-Quiet Cooling & Heating
No more noisy window AC units or bulky wall systems.
Year-Round Use
Many mini splits provide both heating and cooling for complete, flexible comfort.
Why Choose Marathon for Mini Split Installation?
Choosing the right team ensures your new AC performs at its best from day one.
Licensed & Insured
Fully certified technicians with experience on all major AC brands.
Precise System Sizing
We evaluate your layout, insulation, and heat load to design the perfect zone setup.
Fast, Clean Installations
Most mini split systems are installed the same day without disruptive construction.
Upfront Pricing
Thorough inspection, cleaning, and testing for peak performance.
Trusted Locally
Serving Los Angeles, Riverside & Orange County
Why Choose Marathon for Mini Split Installation?
At Marathon, we believe the best results come from a clear process and attention to detail. Here’s how we make your installation smooth and stress-free:
01
Personalized Recommendations
We evaluate your space and recommend the ideal number of indoor heads (zones) for perfect airflow
02
Professional Installation
Our licensed HVAC team handles all electrical and refrigerant connections safely.
03
Quality Assurance Testing
Every system is tested for performance, airflow, and temperature accuracy.
04
Clean Workmanship
We protect your home during installation and leave no mess behind.
05
Final Walkthrough & System Demo
We’ll show you how to operate your new system efficiently and maintain it for peak performance.
Ideal Installation Locations
Ductless mini splits are a perfect solution for:
Garages & Workshops
Bedrooms & Home Offices
ADUs & Guest Houses
Finished Basements & Attics
Home Additions & Sunrooms
Older Homes Without Ductwork
Brands We Install
We proudly install and service industry-leading ductless mini split brands:
Serving Los Angeles, Riverside, and Orange Counties
At Marathon Plumbing, Heating, and Air, we’re proud to provide reliable furnace maintenance plans for homeowners and businesses throughout Los Angeles, Riverside, and Orange County. Our reputation is built on transparent pricing, expert service, and a commitment to keeping our customers comfortable year after year.
Los Angeles County
Riverside County
Orange County
San Bernardino
Pasadena
Long Beach
Related Cooling Services
Explore our full range of cooling solutions designed to keep your home running efficiently:
Fast, reliable fixes for all AC makes and models
Keep your system running consistently and efficiently
Upgrade to a modern, energy-saving system
Annual maintenance to boost efficiency and prevent breakdowns.
Smart thermostat installations & repairs
Installation, repair, and maintenance for high-efficiency zoned cooling systems.
Schedule Your Ductless Mini Split Installation Today
Enjoy efficient, quiet, zoned comfort without the need for ducts. Get started with a professional mini split installation from Marathon Plumbing, Heating, and Air.