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Mini-Splits

MINI-SPLITS • DUCTLESS HVAC • SINGLE-ZONE • MULTI-ZONE

Mini-Split HVAC Systems

Mini-split systems provide flexible heating and cooling for homes and businesses without the need for conventional full-size ductwork. Choose from single-zone and multi-zone systems with wall-mounted, ceiling cassette, concealed-duct and other compatible indoor-unit styles.

Why Choose Mini-Split HVAC?

Ductless systems offer flexible zoning, multiple indoor-unit styles and efficient heating and cooling options.

Single-Zone Comfort

Condition one dedicated room or space with one compatible indoor unit and one outdoor unit.

Multi-Zone Flexibility

Connect multiple compatible indoor units to one outdoor unit for independent room-by-room control.

Heating & Cooling

Heat-pump mini-splits can provide both cooling and heating from the same system.

Inverter-Driven Operation

Many modern systems modulate compressor speed to match changing heating and cooling demand.

Multiple Indoor Unit Styles

Choose from wall-mounted, ceiling cassette, concealed-duct, floor-mounted and other compatible indoor units.

No Conventional Ductwork Required

Most mini-split systems deliver conditioned air directly to the room without full-size ductwork.

Residential Applications

Useful for additions, bedrooms, garages, bonus rooms, finished basements and whole-home zoning.

Commercial Applications

Well suited for offices, retail spaces, restaurants, conference rooms and other light-commercial applications.

Single-Zone & Multi-Zone Mini-Splits

A single-zone system is designed for one dedicated room or space. A multi-zone system allows several compatible indoor units to connect to one outdoor unit while each zone maintains independent temperature control.

For matched indoor and outdoor equipment, browse our Complete Mini-Split Systems category.

Browse Mini-Split System Categories

Choose the system or indoor-unit style that best fits your application.

Complete Mini-Split Systems

Matched single-zone and multi-zone systems with compatible indoor and outdoor equipment.

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Wall-Hung Indoor Heads

Popular high-wall indoor units for efficient, straightforward ductless installations.

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Ceiling Cassette Indoor Units

Recessed ceiling units for a low-profile appearance and multi-direction airflow.

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Single-Zone Mini-Splits

One outdoor unit paired with one compatible indoor unit for dedicated comfort.

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Multi-Zone Mini-Splits

One compatible outdoor unit serving multiple independently controlled indoor zones.

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Concealed-Duct Mini-Splits

Low-profile ducted indoor units for customers who prefer less-visible equipment.

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Floor-Mounted Mini-Splits

Low-wall indoor units useful where high-wall mounting is not ideal.

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Mixed Indoor-Unit Systems

Qualifying multi-zone systems can combine different compatible indoor-unit styles.

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Residential & Commercial Applications

Home Additions

Add dedicated heating and cooling without extending existing ductwork.

Garages & Workshops

Condition qualifying workspaces independently from the main HVAC system.

Bedrooms & Bonus Rooms

Solve hot or cold rooms with individual zone control.

Finished Basements

Add heating and cooling to newly finished lower-level spaces.

Home Offices

Maintain comfort independently from the rest of the home.

Older Homes

Useful where adding conventional ductwork would be difficult or disruptive.

Restaurants & Retail

Create flexible zones while preserving interior layout and wall space.

Professional Offices

Support independent room-by-room comfort in qualifying commercial layouts.

Choose the Right Indoor Unit Style

Wall-hung heads are popular for simple room-by-room installations. Ceiling cassettes offer a recessed appearance, while concealed-duct units can provide a more traditional look.

Explore our Ceiling Cassette Indoor Units or Wall-Hung Indoor Heads categories.

Professional Mini-Split Installation

Proper sizing, equipment matching, line routing, drainage, electrical work and commissioning all matter.

1

Evaluate the Space

Review room layout, insulation, windows, ceiling height, occupancy and comfort goals.

2

Perform Load Sizing

Use appropriate load-calculation methods to determine heating and cooling capacity.

3

Choose Single-Zone or Multi-Zone

Select the system configuration based on the number of rooms and desired independent control.

4

Select Indoor Unit Styles

Choose wall-mounted, cassette, concealed-duct, floor-mounted or other compatible indoor units.

5

Plan Outdoor Unit & Line Routing

Determine condenser placement, refrigerant-line paths, condensate drainage and service access.

6

Complete Electrical Requirements

Provide the required branch circuits, disconnects, controls and code-compliant connections.

7

Install & Commission

Mount equipment, evacuate the refrigeration system, verify drainage and confirm proper operation.

8

Register & Maintain

Complete applicable manufacturer registration and plan regular maintenance.

Why Choose Advanced Service Company LLC?

  • Serving North Alabama since 2008
  • Licensed, bonded & insured
  • Residential & commercial mini-split experience
  • Load calculations available
  • Warranty registration assistance
  • Financing options may be available
  • FREE estimates on qualifying installations
  • Multiple mini-split brands and indoor-unit styles available

Related HVAC & Mini-Split Services

Explore installation, repair, sizing, financing, warranty and energy-efficiency resources related to your project.

Complete Mini-Split Systems

Browse matched single-zone and multi-zone mini-split systems.

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Ceiling Cassette Indoor Units

Explore recessed ceiling cassette indoor units for residential and commercial applications.

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Wall-Hung Indoor Heads

Browse popular high-wall indoor mini-split heads.

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Mini-Split Installation & Repair

Professional installation, diagnostics, maintenance and repair for ductless systems.

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HVAC Installation

Compare mini-splits with conventional heat pumps, air conditioners and packaged systems.

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HVAC Repair

Already own a system? We provide qualifying diagnostics and repair.

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HVAC Load Calculations

Proper sizing helps reduce short cycling, humidity problems and comfort issues.

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FREE Estimates

Request a FREE qualifying estimate for a new mini-split installation.

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HVAC Financing

Financing options may be available to approved customers for qualifying projects.

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HVAC Warranty Information

Learn about manufacturer parts warranties, registration requirements and optional labor coverage.

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Indoor Air Quality

Explore filtration, air-cleaning and other IAQ options that may complement your system.

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TVA EnergyRight Services

Review qualifying TVA EnergyRight services and energy-efficiency opportunities.

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Mini-Split System FAQs

Click a question to view the answer.

Ready to Compare Mini-Split Systems?

Contact Advanced Service Company LLC for a FREE qualifying mini-split installation estimate in North Alabama.