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Mini-Split Installation & Repair in Austin, TX

Mini-split installation and repair in Austin, TX, for ADUs, backyard offices and older central Austin homes from Hyde Park to Travis Heights.

Mini-splits for Austin

Austin homeowners have been adding space wherever they can: backyard offices, garage conversions, and accessory dwelling units (ADUs). Each of those spaces needs its own heating and cooling, and running ducts from the main house rarely makes sense.

A ductless mini-split is built for exactly that. It heats and cools one space on its own, with its own thermostat.

ADUs and backyard offices

ADUs and backyard studios are small and well-defined, which makes them ideal for a mini-split. We size the system for the space so it runs efficiently and keeps the room comfortable through Austin’s long summers.

Older central Austin homes

Neighborhoods like Hyde Park, Travis Heights and Clarksville have plenty of older homes, some still relying on window units. A mini-split replaces them with something much quieter and more efficient, without opening walls for ductwork.

Common Austin projects

  • ADUs and backyard cottages
  • Backyard offices and studios
  • Garage conversions
  • Older homes moving off window units

What a typical install looks like in Austin

For an ADU or backyard office, we start with the space itself: its size, insulation, windows and how much afternoon sun it gets. Small, well-built spaces often need a smaller system than people expect, which keeps costs down.

On install day, we mount the indoor unit, run the line set and drain line through a small hole in the wall, set the outdoor unit, and connect the power. For detached buildings, we plan the electrical connection during the visit. Most single-zone installs take about a day.

If you’re replacing window units, we remove them so you get your windows back. A yearly tune-up keeps the system efficient, and cedar pollen season in winter is a good reminder to rinse the filters.

How much does a mini-split cost in Austin?

Most single-room mini-split installs in Austin run $1,900–$6,200, installed.
The biggest factor is the size of the room.

Room size Typical installed price
Up to 200 sq ft $1,900–$3,800
200–400 sq ft $2,000–$4,000
400–600 sq ft $2,300–$4,400
600–800 sq ft $2,600–$4,900
800–1,000 sq ft $3,200–$6,200
1,000+ sq ft $3,200–$6,200

Ranges include the unit and a standard single-zone install, assuming 8-ft ceilings, average insulation and sun, and an existing electrical circuit. Add $300–$1,200 if a new circuit is needed.
These are estimates, not quotes; final pricing depends on your space and equipment.

What services are you looking for?

Projects are stressful. Renovations rarely go to plan, and juggling contractors, budgets and timelines can feel like a full-time job you never applied for.

Let Windsanity take the mini-split off your list. Mini-splits are all we do, so you get careful, high-quality work that fits around your schedule and gets finished on time.

Find your project listed below.

Windsanity Services Click a row to open it
Service What's included Best for Next step
Installation Load-calculated sizing, mounting, line set, electrical hookup, startup and walkthrough Garages, additions, rooms with no ductwork Get an estimate →
Repair & Maintenance Diagnostics, refrigerant checks, coil and filter cleaning, error-code troubleshooting Units that are noisy, leaking, or not cooling Book a repair →
Multi-Zone Systems One outdoor unit running two to five indoor heads, each with its own thermostat Whole homes and homes with hot and cold rooms Plan your zones →
ADU & Guest House Right-sized systems for small, well-insulated spaces, with permit-friendly placement ADUs, casitas, backyard offices Get an estimate →
RV & Tiny Home Compact units for tight spaces and limited power RVs, tiny homes, cabins Get an estimate →
Commercial Multi-unit installs and service for offices, warehouses and retail Shops, small offices, server and storage rooms Request a quote →
Have a different project in mind? Send us a message

Frequently Asked Questions

Answers to the questions we hear most.
Don't see yours? Reach out and we'll get back to you.

What's the best way to cool and heat an ADU?

A mini-split is usually the best fit. It's sized for a small space, it heats and cools, and the ADU gets its own thermostat without tying into the main house's system.

Can you install a mini-split in a backyard office or studio?

Yes. Backyard offices are one of the most common mini-split jobs in Austin. We size the system for the space, including its windows and sun exposure.

Can a mini-split replace a window unit?

Yes, and it's a big upgrade. A mini-split is much quieter, more efficient, and doesn't block the window.

Ready to get comfortable in Austin?

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