Ductless Mini-Split Installation in Cincinnati & Dayton
Zone-by-zone heating and cooling without ductwork — perfect for additions, garages, and hard-to-cool rooms. Professional installation by NATE-certified technicians.
Take the Quiz: Which System Is Right for You?
Answer 5 quick questions and we'll recommend the heating and cooling configuration that best matches your home and goals.
Financing
Zone-Controlled Comfort, $0 Down
Flexible financing puts ductless within reach without a big upfront check. We start with a free in-home assessment, build a quote sized to your space, and handle a clean, code-compliant install — no guesswork, no upselling.
- 1 Free Estimate We visit your home, measure the space, and run a load calculation.
- 2 Custom Quote You get an exact, right-sized configuration with financing options laid out.
- 3 Pro Install Most single-zone systems are installed in one day, permitted and inspected.
Where Ductless Mini-Splits Shine
Ductless systems solve specific comfort problems that traditional HVAC can't address easily. Here are the most common scenarios we see.
Spaces Central Air Can't Reach
- Home Additions & Sunrooms — No existing ductwork to tap into? A single-zone mini-split gives your new space its own climate control without the cost of extending duct runs through walls and ceilings.
- Garages & Workshops — Year-round comfort for hobbies, woodworking, or home gyms. A ductless unit heats and cools a detached or attached garage without connecting to your home's central system.
- Historic Homes — Preserve the character of your older home. Mini-splits require only a small 3-inch hole for refrigerant lines — no tearing into plaster walls or period trim to install ductwork.
Independent Control Where You Need It
- Bonus Rooms & Attics — Upper floors that are always too hot in summer and too cold in winter. Ductless units deliver conditioned air directly where central systems can't reach effectively.
- Basements — Independent temperature control below grade. Keep finished basements comfortable year-round without relying on heat rising from upper floors or a separate space heater.
- Server Rooms & Home Offices — Consistent cooling for heat-generating equipment and focused comfort for long work sessions. Set a precise temperature independent from the rest of the house.
Indoor Unit Styles to Match Your Space
Ductless mini-splits come in several mounting configurations. The right choice depends on your room layout, ceiling type, and aesthetic preferences.
Wall-Mounted
The most common and most affordable option. Mounts high on the wall and distributes air across the room. Available in slim, modern profiles from all major brands.
Ceiling Cassette
Recessed into the ceiling for a flush, discreet look. Distributes air in four directions for even coverage. Ideal for rooms where wall space is limited or you want the unit out of sight.
Floor-Mounted
Low-profile unit that sits near the floor, similar to a baseboard heater. Easy to access for filter cleaning. A good choice for rooms with large windows or limited wall height.
Concealed Duct
Hidden inside a ceiling or wall cavity with short duct runs to supply grilles. The unit itself is invisible — only the vents are visible. Best for homeowners who want zero visual impact.
DIY vs. Professional Mini-Split Installation
DIY mini-split kits are widely available online. Here's what you should know before deciding whether to install one yourself or hire a professional.
DIY Kit Installation
- Warranty: No manufacturer warranty (most require professional install)
- Electrical: Requires a dedicated circuit — permit needed in most Ohio jurisdictions
- Refrigerant: Handling refrigerant requires EPA Section 608 certification
- Risk: Incorrect sizing, improper line set connections, or electrical errors void any remaining warranty and can damage the equipment
Professional Installation
- Warranty: Full manufacturer warranty (typically 5-12 years on parts and compressor)
- Code compliance: All work permitted, inspected, and built to current Ohio mechanical code
- Sizing: Manual J load calculation ensures the right capacity for your room — no guessing
- Labor warranty: Our workmanship is guaranteed, so if anything goes wrong with the install, we fix it
Professional installation is worth it for warranty protection and proper sizing alone. An incorrectly sized system will short-cycle, waste energy, and wear out early. And without a manufacturer warranty, you're paying full price for any compressor or component failure that would otherwise be covered. We've seen too many DIY installs that ended up costing more to fix than a professional install would have cost from the start.
What Sets Our Ductless Installations Apart
"No guessing, no upselling — just the right-sized solution."
- Factory-Trained on Leading Brands — Our technicians are factory-trained on Mitsubishi, Daikin, and Carrier ductless systems. We know the installation specs, refrigerant requirements, and wiring details for each brand inside and out.
- Free In-Home Sizing Consultation — We visit your home, measure the space, evaluate insulation and sun exposure, and perform a load calculation before recommending a system. No guessing, no upselling — just the right-sized solution.
- Clean, Careful Installation — We protect your walls, floors, and finishes throughout the install. Drop cloths go down before tools come out, and we clean up completely when we're done. Your home stays as clean as we found it.
- All Work Permitted & Inspected — Every installation we do is pulled with the proper permits and passes local inspection. This protects your home's resale value, ensures code compliance, and validates your manufacturer warranty.
01
Heat Pump Services
Whole-home heating and cooling with maximum efficiency. Ideal if you want a single system to replace both your furnace and AC.
02
AC Replacement
If your central air is aging out, a new high-efficiency unit can cut cooling costs significantly. We handle sizing, removal, and installation.
03
Indoor Air Quality
Pair your ductless system with air purification, dehumidifiers, or ventilation solutions for healthier indoor air throughout your home.
"More Heat More Cool replaced our water heater in Huber Heights, OH due to the age and corrosion of our old one. Andre and Austin did a great install and were very helpful explaining everything. They did not leave any cleanup to be done as well. Gary (owner) gave us an affordable payment plan that we needed. Thanks again to Gary, Andre, and Austin for a job well done!"
Teresa StichtenothGoogle Review
"Andrei did a FIVE STAR JOB. The technician did an excellent job, he explained everything clearly and checked all of my furnace and AC parts"John FeiglesonGoogle Review
Ductless Mini-Split FAQs
The number of indoor units depends on how many rooms or zones you want to condition independently. A single outdoor unit can typically support 2-5 indoor units. During our assessment, we'll evaluate your floor plan, room sizes, and comfort goals to recommend the right configuration. Some homeowners start with one or two zones and add more later.
Yes. Modern cold-climate mini-splits (sometimes called hyper-heat models) maintain heating efficiency down to -15°F or lower. They use inverter-driven compressors that adjust output to match demand, which makes them more efficient than traditional resistance heating. We recommend cold-climate rated models for Ohio's variable winters.
Most single-zone installations are completed in one day, typically 4-8 hours. Multi-zone systems with 3-4 indoor units usually take 1-2 days depending on complexity. We'll provide a timeline estimate during your consultation so you can plan accordingly.
Mini-splits require minimal maintenance compared to traditional systems. Clean or replace filters monthly during heavy use. Keep the outdoor unit clear of debris and vegetation. We recommend annual professional maintenance to check refrigerant levels, clean coils, and ensure optimal efficiency. Our Comfort Club membership includes these tune-ups.
We serve the Greater Cincinnati and Dayton areas including Franklin, Monroe, Mason, West Chester, Middletown, Hamilton, Lebanon, Springboro, Centerville, Kettering, Beavercreek, and surrounding communities throughout Southwest Ohio. Call us to confirm service availability in your area.
Get Your Free Ductless Estimate
Tell us about your space and comfort goals. We'll schedule a free in-home consultation and provide an exact quote — no obligation.
Prefer to call? (937) 794‑5060In a hurry? Book your visit online and pick a time that works for you.
Ready for Zone-Controlled Comfort?
Get customized heating and cooling exactly where you need it. Contact More Heat More Cool today for a free consultation and quote on ductless mini-split installation.
Serving Monroe & All of Southwest Ohio
From our home base in Monroe, we bring this service to homeowners across Southwest Ohio. Find your community below, or see all service areas.
Monroe & Warren County
Greater Cincinnati
Greater Dayton
Not sure if we cover your area? Call (937) 794‑5060 — there's a good chance we can help.