Professional ductless mini-split installation, repair & maintenance. Perfect for garages, workshops, home additions & spaces without ductwork.
A ductless mini-split air conditioner is a cooling system that doesn't require ductwork. Instead of pushing air through ducts, a mini-split uses a small outdoor compressor unit connected to one or more indoor air handlers via refrigerant lines that run through a 3-inch hole in the wall.
Ductless mini-splits are the #1 choice for cooling garages, workshops, home additions, and any space without existing ductwork. If you're working in your garage during Texas summer, a mini-split can make it comfortable in hours, not weeks.
Ductless mini-splits are ideal for spaces without existing ductwork.
Why mini-splits are perfect for garages: No ductwork required, fast installation (4-6 hours), zone control so you only cool when working, heating capability for winter, and no path for garage dust to enter your home.
Typical setup: One 12,000-18,000 BTU indoor unit covers a 2-3 car garage.
Other spaces perfect for mini-splits: Home workshops, converted attics, mother-in-law suites, sunrooms, home offices, man caves, she sheds, and pool houses.
Why it matters: Running ductwork costs $3,000-$8,000 and requires tearing open walls. A mini-split installs with minimal construction for less than half the cost.
Multi-zone systems: One outdoor unit connects to 2-8 indoor units, perfect for whole-home cooling in older homes without ductwork, or for independent temperature control in different rooms.
Coverage: Multi-zone systems can cool 3,000+ sq ft with individual thermostats per room.
Mini-splits use inverter technology and have SEER ratings up to 33 (vs. 14-16 for standard AC). No ducts = no air loss (ducts can leak 20-30%). Save 25-40% on energy costs.
Each indoor unit has its own thermostat. Cool the bedroom to 68° while keeping the living room at 74°. Only cool rooms you're using. Perfect for multi-story homes.
Install in 1 day (single-zone) or 2-3 days (multi-zone). No tearing open walls or ceilings. Just drill a 3-inch hole for refrigerant lines. Minimal construction, minimal disruption.
Perfect for older homes without ducts, home additions, garages, or anywhere running ductwork isn't practical. Saves thousands compared to installing a ducted system.
Most mini-splits are heat pumps - they cool in summer AND heat in winter. One system handles both. Works down to 5°F outdoors (perfect for Texas winters).
Indoor units run at 19-25 decibels (quieter than a whisper). No noisy ductwork vibrations. Outdoor units are quieter than traditional AC condensers. Sleep peacefully.
Choose the right configuration for your needs.
One outdoor unit → One indoor unit
Best for:
Cost: $3,000-$5,500 installed
Installation time: 4-6 hours
Coverage: 400-1,500 sq ft
One outdoor unit → 2-8 indoor units
Best for:
Cost: $7,000-$15,000+ installed
Installation time: 1-3 days
Coverage: Up to 3,000+ sq ft
Not sure which system you need? We provide free in-home consultations.
Call for Free QuoteWhat to expect when you choose LEX for ductless AC installation.
Our HVAC expert visits your home to assess the space, calculate cooling load, discuss your goals, and recommend the right system size. We provide an upfront, transparent quote with no hidden fees.
We schedule a convenient installation date (often within 3-7 days). For single-zone systems, installation takes 4-6 hours. Multi-zone systems take 1-3 days depending on the number of indoor units.
We mount the indoor air handler(s) on your wall or ceiling at optimal height. The outdoor compressor unit goes on a concrete pad or wall-mounted bracket. We ensure proper drainage, clearance, and accessibility.
We drill a 3-inch hole through the wall and run the refrigerant lines, power cable, and condensate drain between units. Lines are insulated and concealed with a protective cover. We seal the wall penetration completely.
We vacuum the refrigerant lines to remove air and moisture, then charge the system with the correct refrigerant. We test cooling performance, check for leaks, verify drainage, and program your thermostat.
We show you how to use your remote control, set schedules, change filters, and troubleshoot basic issues. We clean up all installation debris and register your warranty before we leave.
Ductless mini-split costs vary based on system size, number of zones, brand, efficiency rating, and installation complexity. Here's what to expect in Dallas-Fort Worth:
*Prices include equipment, installation, refrigerant lines up to 25 feet, electrical connection, testing, and warranty registration. Longer line runs or complex installations may cost more.
Every home is different. Call us for a free consultation and upfront quote — no obligation.
(972) 466-1917Financing available with approved credit
We install high-quality ductless systems from trusted manufacturers.
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Same-day service with 30-45 minute response times across DFW. We know AC issues can't wait.
You'll know the cost before we start. No hidden fees, no surprises — just honest, transparent pricing.
Our technicians are fully licensed, insured, and background-checked. We hire the best so you get the best.
We install and service all major mini-split brands. No matter what you have, we can help.
We stand behind our work. If you're not happy, we'll make it right — that's our promise.
We're not a franchise or a big corporation. We're your neighbors, serving DFW families for 22+ years.
Yes! Mini-splits work perfectly for garage cooling, even in 100°F+ Texas heat. A typical 2-car garage (400-600 sq ft) needs a 12,000-18,000 BTU unit. Installation takes 4-6 hours, and you'll have comfortable workspace temperatures (70-75°F) all summer. Most garage mini-splits also heat in winter, making your workshop usable year-round.
Garage mini-split installation typically costs $3,500-$5,000 in DFW, including equipment and labor. This covers a 12,000-18,000 BTU unit, wall mounting, refrigerant lines, electrical connection, and warranty. Compare this to $6,000-$10,000 to extend ductwork from your home's central AC system - mini-splits are usually the more affordable option for garages.
Yes, mini-split installations in Dallas-Fort Worth require an HVAC permit (for refrigerant work) and electrical permit (for power connection). LEX Air Conditioning handles all permit applications, inspections, and code compliance. Permits typically cost $100-$200 and are included in our installation quote.
Ductless mini-splits last 15-25 years with proper maintenance, compared to 12-15 years for traditional central AC. The longer lifespan is because mini-splits have fewer moving parts, inverter compressors (less wear from constant on/off cycling), and no ductwork to deteriorate. Annual tune-ups and monthly filter cleaning maximize your system's lifespan.
Yes! Most ductless mini-splits are heat pumps that provide heating down to 5°F outside temperature. Since Texas winters rarely drop below 20°F, mini-splits are extremely effective for heating. They're 2-3 times more efficient than electric resistance heat. Many homeowners use mini-splits as their primary heating and cooling system year-round.
Mini-splits typically LOWER your electric bill compared to traditional AC. Their high efficiency (SEER 20-33 vs. 14-16 for standard AC) and zone control mean you use less energy. Garage mini-splits are especially cost-effective because you only cool the space when you're using it. Most customers report $30-$80/month savings during summer.
Yes! Most modern mini-splits include Wi-Fi connectivity and smartphone apps (iOS and Android). Control temperature, set schedules, switch modes, and receive maintenance alerts from anywhere. Many integrate with Amazon Alexa and Google Home for voice control.
Mini-splits are the quietest AC option available. Indoor units run at 19-25 decibels (quieter than a whisper - libraries are 30 dB). Outdoor units are quieter than traditional AC condensers. You'll barely notice them running. This makes them perfect for bedrooms, home offices, and spaces where noise matters.
Size depends on square footage, insulation, windows, ceiling height, and sun exposure. General guidelines: 9,000 BTU for 300-400 sq ft, 12,000 BTU for 400-600 sq ft, 18,000 BTU for 600-1,000 sq ft, and 24,000 BTU for 1,000-1,500 sq ft. Garages often need larger units due to poor insulation and large doors. We provide free load calculations to size your system correctly.
We strongly advise against DIY mini-split installation. Texas requires a licensed HVAC contractor (TACL license) to handle refrigerant, and a licensed electrician (TECL license) for 240V connections. Improper installation voids your warranty, can cause refrigerant leaks, and creates safety hazards. Professional installation ensures optimal performance and warranty protection.
We provide ductless mini-split installation, repair & maintenance throughout Dallas-Fort Worth.
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