Professional AC Installation Across Southern California
U M Air Inc. is a licensed and insured HVAC contractor specializing in AC installation for homes and businesses throughout Southern California. Flexible financing available.
AC Installation Services We Offer
From single-unit replacements to full system installs, we handle every AC installation project.
New System Installation
Professional installation of new AC systems, sized and installed right the first time.
Ductless Mini-Split Installation
Expert installation of ductless mini-split systems for additions, garages, and zoned comfort.
Load Calculation & System Sizing
Accurate Manual J load calculations to size your new system correctly for efficiency and comfort.
Ductwork Installation & Sealing
Custom ductwork design, installation, and sealing for optimal airflow and efficiency.
Your Easy 3-Step Plan
Simple. Fast. Stress-free.
Schedule
Contact us online or call to book your service.
We Dispatch
We send a certified technician to your location on time.
Service Complete
We fix the issue and make sure you are 100% satisfied.
What Our Clients Say
Proudly Serving Southern California
Providing fast, reliable HVAC service to homes and businesses throughout the local communities of Southern California.
If your city is not listed, give us a call! We may still be able to help.
Frequently Asked Questions
Answers to common AC installation questions from homeowners across Southern California.
How do I know if I need a new AC system?
If your AC is more than 12-15 years old, needs frequent repairs, uses R-22 refrigerant, or can’t keep up with Southern California summers, it may be more cost-effective to replace it with a new, high-efficiency system.
Do you install all AC brands?
Yes, our technicians are certified to install all major AC brands and models, and we’ll help you choose the right system for your home and budget.
How quickly can you install a new AC system?
Most single-system installations are completed in one day. We’ll schedule a free in-home estimate first to confirm timing and any special requirements.
Do you serve my area in Southern California?
We proudly serve homes and businesses throughout Southern California. If you’re not sure we cover your area, give us a call.
How do you determine the right size AC unit for my home?
We perform a Manual J load calculation that factors in your home’s square footage, insulation, windows, and local climate to recommend the correctly sized system — oversized or undersized units waste energy and wear out faster.
What SEER rating should I choose?
Higher SEER-rated systems cost more upfront but save significantly on energy bills over time. We’ll walk you through the options and help you find the best balance for your budget.
Can you install a ductless mini-split instead of central air?
Yes, ductless mini-splits are a great option for additions, garages, or homes without existing ductwork, and they offer efficient, zoned comfort.
Will you inspect my existing ductwork before installing a new system?
Absolutely. We always inspect your ductwork for leaks, damage, or sizing issues, since even the best new AC system will underperform if it’s connected to compromised ducts.
What happens during an AC installation?
Our process includes a site assessment and load calculation, safe removal and disposal of your old unit, setting the new equipment, connecting and sealing ductwork, charging refrigerant, wiring, and a full system test before we walk you through everything.
How long does a typical AC installation take?
Most standard installations are completed in a single day, typically 6-8 hours. Larger systems or projects involving new ductwork may take one to two days.
Do I need a permit for AC installation?
In most Southern California municipalities, yes. We handle the permitting and inspection scheduling for you, so there’s nothing extra for you to coordinate.
Will you remove and dispose of my old AC unit?
Yes, removal and eco-friendly disposal or recycling of your old system is included with every installation.
How much does AC installation cost?
Cost depends on system size, efficiency rating, and any ductwork needed. We provide a free in-home estimate with clear, upfront pricing before any work begins.
Do you offer a warranty on new installations?
Yes, every installation is backed by our workmanship warranty, in addition to the manufacturer’s warranty on parts and equipment.
Do you offer financing for a new AC system?
Yes, we offer flexible financing options for qualified customers to help make a new system more affordable.
Is the estimate free?
Yes, all in-home consultations and estimates are completely free, with no obligation.
Comfort Today. A Stronger Tomorrow.
Let U M Air Inc. be your trusted partner for reliable, efficient and long-lasting comfort across Southern California.
