Ductless Mini-Splits in Gilbert, AZ

Cooling for the rooms your central AC never reached.

The room that never cools down

Converted garages, casitas, Arizona rooms and additions built after the house almost always run hot. The main system was never sized or ducted for them, and running new ductwork through a Gilbert attic is often expensive or impossible. A ductless mini-split puts an indoor unit right in the room, with its own thermostat, connected to a small outdoor unit through one hole in the wall.

Iron Horse service van and trailer on a neighborhood job

Sized room by room

We size each space on its own: square footage, sun exposure, windows, insulation and how you use the room. A west-facing casita in July needs more than a north-facing office. Go too big and the unit cycles on and off and leaves the room clammy. Go too small and it runs all afternoon without catching up.

A single-zone system covers one room. A multi-zone system runs several indoor units off one compatible outdoor unit, each with its own temperature, which works well for an addition with more than one room.

Installation and upkeep

Installation means mounting the indoor head, running the line set and drain through the wall, setting the outdoor unit on a pad and testing the charge. The job is permitted and inspected. We also leave room around the indoor head for service and make sure the condensate drain carries water away.

Mini-split filters are small and fill with dust fast, so check them more often than you would a central return filter, especially after a monsoon storm. Already have a mini-split another company put in? We service every make and model. Financing is available on new installs, including 0% promotional plans for qualifying applicants, with approved credit.

Our process

  1. 1

    Free in-home estimate

    We look at the rooms you want to cool and give you a written estimate at no charge.

  2. 2

    Plan the zones

    We size each zone and decide where the indoor heads and the outdoor unit go.

  3. 3

    Install

    We mount the heads, run the line set and power, and set up the controls.

  4. 4

    Test and walk through

    We test every zone, show you how to use the remote, and register the warranty.

Our Gilbert office

Iron Horse Air's Gilbert office is at 378 S Hamilton Ct. Our technicians come to you, so call (480) 808-9990 or book online and we'll set up a time. Emergency dispatch runs 24/7.

Iron Horse Air

378 S Hamilton Ct
Gilbert, AZ 85233

(480) 808-9990

ROC 360563 (HVAC)

Get directions

Neighborhoods we serve in Gilbert

  • Heritage District
  • Agritopia
  • Power Ranch
  • Seville
  • Val Vista Lakes
  • Morrison Ranch
  • Cooley Station
  • Lyons Gate
  • Finley Farms
  • The Islands
  • Spectrum
  • Shamrock Estates

Don't see your neighborhood? Call (480) 808-9990 and we'll confirm.

What Our Customers Say

Leave Us a Google Review

★★★★★

"Christie was personable and knowledgeable, and Ryan's diagnostics were thorough, clean, and clearly explained. Reliable, professional, fair pricing. We'd rate Iron Horse a 10+."
Kim & Lynn · Google Review

★★★★★

"The Iron Horse maintenance program is fantastic. Jonathan's inspections are detailed and he takes the time to explain everything so we understand our system and what it needs long-term."
Vanessa L. · Google Review

Frequently asked questions

Can a mini-split cool a converted garage?

Yes. It's one of the most common uses, because the system needs no ductwork, just a refrigerant line through an exterior wall.

How many rooms can one outdoor unit handle?

It depends on the outdoor unit and the combined load of the rooms. Each indoor unit has to be compatible with the system and sized for its space, and we work that out at the estimate.

Do mini-splits heat too?

Most ductless systems are heat pumps, so they heat as well as cool. We'll confirm what the model you choose does before you buy.

Do they need maintenance?

Yes. Clean or check the indoor filters often, and have the system serviced like a central AC.

We Service Every Make and Model

Iron Horse is locally owned and services every make and model of AC, heat pump, furnace, water heater and plumbing fixture. If you got a quote for a specific brand, we can work on it.

Authorized Dealer

  • Carrier
  • Goodman
  • A/C Pro
  • Ruud

We also service

  • Trane
  • Lennox
  • Rheem
  • American Standard
  • Bryant
  • Daikin
  • York
  • Amana
  • A.O. Smith
  • Bradford White
  • Rinnai
  • Navien

Fast, Fair, Always There

Fix the hot room for good

Book a free in-home estimate and we'll size a mini-split for the space.