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Ductless Mini-Split Systems for Green Country Homes
Heating and Cooling for Any Room, No Ductwork Required
Need to add comfort to a garage, room addition, shop, sunroom, or older home that doesn’t have ductwork? A ductless mini-split system delivers both heating and cooling through a compact wall-mounted unit connected to an outdoor compressor. No duct runs, no major renovation. Cool Down Heating and Air installs and services ductless mini-split systems for homeowners across Rogers County and the greater Tulsa metro.
- One-Day Installations Available
- Financing for Qualified Homeowners
Ductless Mini-Split Installation and Service
Traditional central HVAC relies on a network of ducts to move air through your home. That works well when the ducts exist, but many spaces don’t have them: converted garages, room additions, above-garage bonus rooms, sunrooms, workshops, and older homes built before central air was standard. Running new ductwork to these areas can be expensive and disruptive. A ductless mini-split solves the problem by delivering conditioned air directly to the room through a small refrigerant line between an outdoor unit and one or more indoor air handlers.
Mini-splits are also significantly more energy-efficient than window units or portable ACs because they don’t lose conditioned air through ductwork. The U.S. Department of Energy notes that duct losses can account for more than 30% of energy consumption for space conditioning. By eliminating ducts, a mini-split keeps all that energy where it belongs: in the room you’re trying to heat or cool.
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Signs a Ductless Mini-Split Is Right for You
Room Addition or Conversion With No Ductwork
If you’ve added a room, converted a garage, or finished an attic and there’s no ductwork running to it, a mini-split adds heating and cooling without the cost and disruption of extending your existing duct system.
One Room That's Always Too Hot or Too Cold
A mini-split lets you control the temperature in a single room independently of the rest of the house. Instead of cranking up the whole system to fix one problem room, you solve it at the source.
Older Home Without Central Air
Many older homes in the Claremore and Tulsa area were built with window units or no cooling at all. A mini-split provides whole-room comfort without tearing open walls and ceilings to install ductwork.
Workshop, Shop, or Detached Building
If you spend time in a detached shop, barn, or outbuilding, a mini-split gives you year-round comfort on its own circuit, completely independent of your house system.
You Want Zone Control Without a Full Zoning System
Multi-zone mini-splits let you set different temperatures in different rooms. It’s a simpler alternative to a full HVAC zoning system for homes that only need a few zones controlled independently.
Mini-Split Services We Provide
- Mini-Split Installation (Single Zone)
One outdoor compressor paired with one indoor air handler. Ideal for a single room addition, garage, or bonus room. Most single-zone installs are completed in one day.
- Multi-Zone Mini-Split Installation
One outdoor compressor connected to two, three, or four indoor air handlers in different rooms. Each zone is controlled independently with its own thermostat or remote. Great for older homes or buildings that need comfort in multiple rooms.
- Mini-Split Repair
System not heating or cooling? Leaking refrigerant? Making unusual noises? We diagnose and repair all brands and types of ductless systems, including inverter-driven compressors and multi-zone configurations.
- Mini-Split Maintenance
Annual cleaning of the indoor air handler filters, coils, and condensate drain keeps your mini-split running efficiently and prevents mold growth inside the unit. Ask about adding mini-split service to your Maintenance Plan.
Benefits of Ductless Mini-Split Systems
No Ductwork Required
Installation requires only a small hole through the wall for the refrigerant line. No major construction, no drywall repair, no multi-day renovation.
Energy Efficient
Without duct losses, mini-splits deliver more of the energy they consume directly to the room. That means lower utility bills compared to window units, portable ACs, or systems with leaky ductwork.
Year-Round Heating and Cooling
Ductless heat pump mini-splits provide both heating and cooling from a single system. In Oklahoma’s climate, a quality mini-split handles summer heat and moderate winter cold efficiently.
Quiet, Compact Operation
Indoor units are whisper-quiet and mount flush against the wall or ceiling. They take up far less space than window units and look much cleaner.
What Mini-Split Installation Includes
Every mini-split installation begins with a site assessment. We evaluate the room size, insulation, sun exposure, and intended use to determine the correct equipment size and placement. Oversizing or undersizing a mini-split causes the same comfort and efficiency problems as a poorly sized central system.
Installation includes mounting the indoor air handler, setting the outdoor compressor on a pad or wall bracket, running the refrigerant line and electrical connections through a small wall penetration, connecting the condensate drain, and commissioning the system with a full performance test. We seal the wall penetration, clean up the work area, and walk you through the controls before we leave. Financing is available for all mini-split installations. See our financing options or combine with the $200-off system replacement special | on qualifying projects.
From Quick Fixes to Full System Swaps
Not sure what you need? Ask for a free second opinion.
Commercial HVAC
Light commercial service under 25 tons for offices, restaurants, and retail.
Duct Installation & Repair
Fix leaky, undersized ductwork for better airflow and efficiency.
New Construction HVAC
System design and install for new builds, residential and light commercial.
Built on Honesty, Backed by 25+ Years of Experience
Highlights the company’s strongest trust signals in a quick, easy-to-scan format. Each card reinforces credibility and helps visitors feel confident about choosing the company.
Licensed, Bonded & Insured
Licensed, bonded, and fully insured for your peace of mind. Oklahoma License #099177.
We Stand Behind Our Work
Every full system swap includes a 1-year labor warranty plus a 100% satisfaction guarantee.
No Hidden Fees
Expect clear explanations and honest pricing upfront, with no invoice surprises.
Free Second Opinions
Unsure about a repair or a new system? We'll give you a straight answer, no charge.
Hear It From Your Neighbors
Not sure what you need? Ask for a free second opinion.
- Shelly cruise
This is the second time Rick has come out and fixed my unit from someone else messing it up! He’s very honest reliable and does a good job my AC is up and running the same day and only needed a relay switch to fix it! I was told I needed a whole new unit! I’m so grateful for this honest licensed company that helped me and fixed someone else’s sanity! I highly recommend cool down heating and air and Rick!
- pamela rentie
Rick came out to look at my air unit and explained everything to me on how the process works, what to expect, how much air units run and also told me about air conditioner evaporator. After talking to him I know a lot more about the air units, very pleased with the way he explained things.
- Lee ann riffle
I can always count on Brian to help me out. I have used his services for a few years now. I would highly recommend him.
- Shelly cruise
This is the second time Rick has come out and fixed my unit from someone else messing it up! He’s very honest reliable and does a good job my AC is up and running the same day and only needed a relay switch to fix it! I was told I needed a whole new unit! I’m so grateful for this honest licensed company that helped me and fixed someone else’s sanity! I highly recommend cool down heating and air and Rick!
- pamela rentie
Rick came out to look at my air unit and explained everything to me on how the process works, what to expect, how much air units run and also told me about air conditioner evaporator. After talking to him I know a lot more about the air units, very pleased with the way he explained things.
- Lee ann riffle
I can always count on Brian to help me out. I have used his services for a few years now. I would highly recommend him.
Proudly Serving Claremore and All of Green Country
In Claremore and nearby Rogers County towns, Cool Down Heating and Air is your trusted heating and cooling team. Serving the Tulsa metro and Green Country, we provide honest pricing, clean work, and skilled technicians.
From Claremore to Rogers County and across the Tulsa metro along Route 66, we deliver honest pricing and quality work with every call.
Tulsa County
From Claremore to Rogers County and across the Tulsa metro along Route 66, we deliver honest pricing and quality work with every call.
Practical HVAC Tips & Insights
Straightforward heating and cooling advice from your local Green Country team.
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Ductless Mini-Split Questions
We believe every homeowner deserves a straight answer, no jargon, no runaround.
⚡ 24/7 Emergency Service
AC or furnace down? We answer around the clock for urgent calls across Green Country.
How much does a mini-split cost?
A single-zone mini-split installation typically runs $3,000 to $5,500, depending on the brand, capacity, and installation complexity. Multi-zone systems cost more based on the number of indoor units. We provide a written quote before any work begins.
Can a mini-split heat as well as cool?
Yes. Ductless heat pump mini-splits provide both heating and cooling. They work efficiently in Oklahoma’s moderate winters and can serve as the primary heat source for the rooms they cover.
How many rooms can one system cover?
A single-zone system covers one room. Multi-zone systems can connect up to four or five indoor units to one outdoor compressor, depending on the model.
Do mini-splits need maintenance?
Yes. The indoor unit filters should be cleaned monthly, and an annual professional cleaning of the coils, drain, and refrigerant check keeps the system running efficiently. Ask about adding it to your Maintenance Plan.
Are mini-splits noisy?
No. Modern ductless indoor units operate at about 20 to 30 decibels, which is quieter than a whisper. The outdoor compressor is comparable to a standard central AC condenser.
