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Mini Split Installation

Mini split installation in Ontario & the Inland Empire.

Planning ductless heating and cooling for a room, addition or ADU? Alex Air & Heating provides single- and multi-zone mini split installation in Ontario, Pomona, the Inland Empire and nearby eastern Los Angeles County service areas.

Call 626-777-4822Schedule service

Appointments based on current availability · Open Mon–Sun · 8:00 AM – 6:00 PM.

Alex Air & Heating technician performing mini split installation in the Inland Empire & LA County

Availability

Service is available across the Inland Empire and East LA County. Call during business hours to confirm the next open appointment.

Quick answer

Mini Split Installation from Alex Air & Heating Services LLC: Ductless mini split installation for room-by-room comfort. We serve Ontario, the Inland Empire & East LA County with appointments based on availability, an EPA 608-certified technician and upfront, written pricing. Call 626-777-4822 during business hours to confirm availability.

Residential & Commercial

Mini split installation starts with the rooms you want to heat and cool. Tell us how you use each space, where comfort falls short and whether you want one zone or several. The installation discussion should cover room heating and cooling needs, indoor-unit airflow, outdoor-unit access, refrigerant-line routing, condensate drainage, controls and electrical scope. For a garage conversion or addition, bring the planned use and layout before selecting equipment. Our related installation guides below explain the room and placement questions to bring to that discussion.

What's included

  • Single & multi-zone mini split systems
  • Ideal for additions, ADUs & garages
  • Energy-efficient zoned heating & cooling
  • Clean, professional line-set routing
  • Top brands & full warranty support

Why choose Alex Air & Heating

EPA-Certified
Written Pricing
Availability Confirmed by Phone
Documented Service Scope

Backed by our warranty

Labor warranty 3 Years · Parts warranty 5 Years · Compressor warranty 7 Years. No hidden fees — you approve the price before we begin.

Why choose Alex Air & Heating

What you actually get when you call us.

Appointments based on availability.

Call during business hours to confirm the next available appointment. Timing depends on the current schedule.

Upfront pricing, no surprises.

We diagnose, quote, and explain — then you decide. You approve the price before any work begins, with no hidden fees at the end.

Every make & model.

Our EPA-certified technicians evaluate major HVAC system types and explain any parts or follow-up work the documented diagnosis requires.

How it works

Four steps. No surprises.

01

You call

Reach us at 626-777-4822. We'll book your appointment and share a real arrival window — not an all-day block.

02

We diagnose

A full system inspection — refrigerant, electrical, airflow and controls — to find the real root cause, not just the symptom.

03

You approve

You get an upfront, flat price before any work starts. Repair or replace? We give you the honest numbers.

04

We complete the approved scope

We perform the work you authorize, test the relevant operation, clean the work area, and explain any documented follow-up.

What it costs

Mini Split Installation cost in the Inland Empire

Real 2026 price ranges so you can budget before you call. Every job gets an upfront, written quote — no hidden fees.

SystemTypical roomsInstalled costNotes
Single-zone1 room / open area$3,000–$6,000Best value per zone
2-zone2 rooms$4,500–$8,500Bedroom + living room combo
3-zone3 rooms$7,000–$11,000One condenser, three heads
4-zone4 rooms$9,000–$14,000Approaching whole-home
5-zone / whole-home5+ rooms$11,000–$15,000+Premium heads push higher
2026 installed mini split cost by zone (Southern California). Actual pricing depends on your home, equipment and scope.
Related services

Round out your home comfort.

Popular services and plans homeowners pair with this one.

AC Repair

AC repair for no cooling, warm air, weak airflow and startup problems across the Inland Empire, with a documented diagnosis and written price before work begins.

Learn more

AC Installation

Right-sized, high-efficiency AC installation done right the first time.

Learn more

Maintenance Membership

Just $199 per system per year — an annual tune-up, 10% off all repairs, no overtime fees and free filters.

See membership perks
Good to know

Mini Split Installation FAQs

It can be considered when ductwork is impractical, but intended use, load, placement, drainage, electrical scope and applicable local requirements need a project-specific review.

Alex Air & Heating serves Ontario, Pomona, the Inland Empire and nearby eastern Los Angeles County service areas. Contact us with your address and room plan to confirm coverage and appointment availability.

Absolutely — mini split installation is one of our specialties. We install single and multi-zone ductless systems for homes, additions, garages and light commercial spaces.

They're ideal for additions, converted garages, ADUs, sunrooms, or any space where adding ductwork isn't practical.

Very. Zoned ductless systems let you condition only the spaces you use, which can mean significant energy savings.

Yes — a multi-zone system connects several indoor units to one outdoor unit, each with independent control.

Service information maintained by Yuan Pan, Owner & Lead HVAC Technician. EPA 608 Universal Certification.

Mini Split Installation by city

Choose a city page for locally scoped service details and appointment information.

Mini Split Installation in PomonaMini Split Installation in Diamond BarMini Split Installation in WalnutMini Split Installation in ClaremontMini Split Installation in Rowland HeightsMini Split Installation in OntarioMini Split Installation in CoronaMini Split Installation in EastvaleMini Split Installation in ChinoMini Split Installation in Chino Hills

Related HVAC guidance

Read before you schedule

Buying Guide

Mini-Split for a Sunroom: Comfort and Placement Questions

A mini-split can serve an enclosed sunroom, but glass, afternoon sun, the enclosure and your seating layout should shape the installation—not floor area alone.

Read guide →

Buying Guide

Where Should a Mini-Split Outdoor Unit Go?

Mini-split outdoor-unit placement should balance model-specific clearances, airflow, service access, routing, drainage, sound context and site-specific local requirements.

Read guide →

Buying Guide

Mini-Split for a Garage Conversion in Pomona: Planning Questions

Planning a Pomona garage conversion? Use this mini-split question list to separate comfort design, equipment placement, electrical scope and jurisdiction-specific approvals.

Read guide →
Service area

Serving the Inland Empire & LA County.

Service-area HVAC business serving the Inland Empire, Los Angeles County & surrounding areas

Check your address

Do we cover your ZIP?

Not sure if you're in our area? Enter your ZIP above — we cover most of the Inland Empire & LA County.

  • EPA-certified technicians
  • Honest, upfront pricing — no hidden fees
  • Appointment availability confirmed by phone

Prefer to talk? Call 626-777-4822

Where we workDon't see your city? Just ask.

19 cities across 4 regions

OntarioRancho CucamongaFontanaUplandMontclairRialtoRedlandsSan BernardinoRiversideCoronaEastvaleJurupa ValleyPomonaClaremontWalnutDiamond BarRowland HeightsChinoChino Hills

Locally owned & operated

An independent local team serving the Inland Empire & LA County.

Clear scheduling

Call during business hours and we'll do everything we can to dispatch a tech the same day.

Fast response times

We answer fast and show up when we say we will.

Need mini split installation?

Written pricing, EPA 608-certified expertise, and appointment timing confirmed before you book.

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