Source: https://oncallsc.com/hvac-services/residential-ductless-minisplits

 # Ductless mini-split installation & repair in Columbia, SC

Room addition, bonus room, garage or sunroom that's never comfortable? A ductless mini-split heats and cools it without running new ductwork. On Call's NATE-certified technicians install mini-splits across Columbia and the Midlands, and service Mitsubishi and other major brands.



[Call (803) 781-4357](tel:+18037814357)

 

 

## Request a service

For urgent help, call [(803) 781-4357](tel:+18037814357).

 

  



 ## Where mini-splits shine

- Room additions and bonus rooms
- Garages, workshops and home gyms
- Sunrooms and converted spaces
- Hot upstairs rooms your central system can't keep up with
- Whole-home zoning for homes without ductwork





 ## Wall, ceiling or floor units

Depending on the room, indoor units can mount high on the wall, sit flush in the ceiling as a cassette or install low on the floor. Your technician will recommend the style and spot that keep the room comfortable, drain properly and stay easy to service — not just the one that's least visible.



[Ductwork Repair & Replacement ](https://oncallsc.com/ductwork.md)

 ## Single-room or multi-zone

One indoor unit is perfect for a single room. To handle several rooms, we design a multi-zone system where each space gets its own indoor unit and temperature control, all running off one outdoor unit. We size every zone for the room it serves.



[Air Conditioning ](https://oncallsc.com/air-conditioning.md)

 ## What installation involves

A mini-split needs an outdoor unit location, indoor mounting spots, a small opening for refrigerant and drain lines, and an electrical connection. Your quote spells out all of it — including where the lines will run and any finish work — with one firm price before we begin.





 ## Mini-split repair

Not heating or cooling, leaking water indoors or flashing an error code? Our technicians diagnose and repair ductless systems and let you know when it's a simple fix like a clogged filter or drain versus a bigger problem.

Family-owned since 2011, licensed in South Carolina (Mechanical License CLM.111515 MC) and rated 4.9 stars from 298 Google reviews.





 ## Financing and maintenance options

[Maintenance Plans ](https://oncallsc.com/maintenance-plans.md)

  ## A few common questions.

### Can a mini-split heat and cool?

Yes. Ductless mini-splits are heat pumps, so the same system keeps a room warm in winter and cool in summer.



### Will one unit handle a whole floor?

Usually not evenly. One indoor unit works best for one open space. For several rooms, we design a multi-zone system with an indoor unit where you need it.



### How much work is a mini-split installation?

Just a small opening for the refrigerant and drain lines, plus a spot for the outdoor unit and electrical connection. Your technician will show you exactly where everything goes before we start.



### How much does a mini-split cost?

Your technician gives you one firm installed price on site. For repairs, our residential diagnostic fee is $89, waived when you go ahead with the work. Pay by cash, check or card, or ask about financing for a new installation.



### Can each room be set differently?

Each room can usually have its own temperature, but indoor units on the same outdoor unit typically run in the same mode — all heating or all cooling. Your technician will explain what your system can do.



[Heating overview ](https://oncallsc.com/heating.md)

 

 ## Helpful guides

From our technicians — answers to the ductless questions we hear most.

 

  ### [Ductless Mini-Splits for Airbnb Rentals: Benefits, Limits, and Planning](https://oncallsc.com/articles/ductless-mini-splits-for-airbnb-rentals.md)

A balanced guide for short-term-rental owners considering ductless heat pumps, including zoning, efficiency, air quality, maintenance, and project-specific installation needs.

 [Read the guide ](https://oncallsc.com/articles/ductless-mini-splits-for-airbnb-rentals.md)