Windsanity Mini Split
← All service areas

Local Windsanity technicians

Mini-Split Installation & Repair in Dallas, TX

Mini-split installation and repair in Dallas, TX, from Lakewood to Oak Cliff. Ductless cooling and heating for older homes, additions and garage apartments.

Mini-splits for Dallas homes

Dallas summers regularly push past 100 degrees, and many homes have at least one room that can’t keep up: a back addition, a sunroom, or a garage apartment that was never connected to the main system. A ductless mini-split cools that space on its own, with its own thermostat.

Older homes, no ductwork

Neighborhoods like Lakewood, the M Streets and Kessler Park are full of homes built in the 1920s through the 1940s. Many were never designed for central air, and adding ducts means opening walls and ceilings. A mini-split needs only a small hole for its line set, so the house keeps its original character.

Ready for both seasons

Dallas also gets real winter weather. Mini-splits are heat pumps, so the same system that cools in July heats in January. For homeowners who want dependable heat during hard freezes, we can recommend cold-climate models built for much lower temperatures.

Common Dallas projects

  • Garage apartments and backyard studios
  • Additions and sunrooms the original system was never sized for
  • Home offices that need to stay comfortable all day
  • Older homes that never had central air

What a typical install looks like in Dallas

We start by visiting the space. We measure it, check the windows and insulation, and talk about whether you want the system mainly for summer cooling or for winter heat too. That decides whether a standard or cold-climate model makes more sense.

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. In older homes, we take extra care routing the line set so it’s tidy and doesn’t damage original trim or brick. Most single-zone installs take about a day, and we test both heating and cooling before we leave.

A yearly tune-up, ideally before summer, keeps the system ready for triple-digit days and checks that heating mode is working before the first freeze.

How much does a mini-split cost in Dallas?

Most single-room mini-split installs in Dallas 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.

Can a mini-split heat my home during a Dallas cold snap?

Yes. Mini-splits are heat pumps, so they heat as well as cool. Standard models handle a typical Dallas winter well. If you want reliable heat during hard freezes, we can recommend a cold-climate model rated for much lower temperatures.

Will a mini-split keep up when it's over 100 degrees?

Yes, as long as it's sized for the room. Inverter mini-splits adjust their speed instead of switching on and off, so they hold a steady temperature even on the hottest afternoons.

Can you add a mini-split to an older home without ducts?

Yes. That's one of the best uses for a mini-split. The line set runs through a small hole in the wall, so there's no need to tear into plaster or lose closet space to ductwork.

Ready to get comfortable in Dallas?

Contact Us