Ductless Mini-Split Installation in Des Moines, IA
A ductless mini-split system gives you pinpoint comfort control without the complexity of ductwork. Whether you're cooling a finished basement, heating an addition, or creating zones so different rooms stay at different temperatures, a mini-split delivers efficient comfort tailored to your space. Obsidian Heating and Cooling has been installing mini-split systems in Des Moines-area homes since 2009. We're a veteran-owned business and Tempstar Elite Dealer, and we understand that mini-split installation is as much about aesthetic integration as it is technical precision. Your indoor wall-mounted units should look intentional and blend with your décor—while the refrigerant lines stay hidden in walls or conduit. We handle both perfectly.
Up to 15-Year Warranty
Parts & Labor
Why Homeowners Choose Mini-Split Systems for Des Moines Homes
Our Mini-Split Installation Process — Design to Finish
From initial space assessment to final testing and training, every step is handled with precision and care. Here's what to expect when you choose Obsidian Heating and Cooling for your mini-split installation.
Space Assessment & Zone Design
Mini-split installation starts with understanding your space and comfort goals. We'll walk through the area you want to condition—a basement, bonus room, master bedroom, garage conversion, or addition—and discuss placement options. Indoor units can mount high on walls, low near baseboards, or even on ceilings (less common but possible). Outdoor units need clearance for airflow but can often fit in side yards, on roofs, or on ground-level pads.
We'll also discuss zone strategy. One indoor unit handles up to 400–500 square feet efficiently. Larger spaces might need two indoor units on one outdoor condenser. We'll calculate the cooling and heating capacity your space needs using load calculation methods. An oversized unit will short-cycle; undersized won't keep up in extreme weather. We get sizing right.
We'll also review your electrical panel capacity. Most mini-splits run on 208–240V circuits; older homes might need panel upgrades or dedicated circuits. We'll identify any electrical work needed upfront so there are no surprises.
What We Assess
Square Footage & Load
Precise capacity calculation for your space.
Optimal Placement
Indoor unit positioning for airflow and aesthetics.
Outdoor Unit Location
Clearance and accessibility evaluation.
Electrical Requirements
Panel capacity and circuit needs.
Zone Strategy
Single or multi-zone configuration planning.
Insulation Quality
Space efficiency and thermal characteristics.
Equipment Selection & Design Proposal
Once we understand your space, we present options. Mini-splits come in single-zone and multi-zone configurations, various capacity tiers, and different efficiency ratings. A high-efficiency inverter-driven compressor runs quieter and uses less energy but costs more upfront. A standard unit is less efficient but more affordable. We'll model energy costs for each option so you can make an informed choice.
We'll also discuss features: smart thermostat integration, whisper-quiet operation, heating capability (if applicable), and aesthetic options. Some units are compact and minimal; others have more substantial wall presence. We'll recommend what balances your comfort needs, energy goals, and budget. You'll receive a detailed written proposal with equipment specs, installation timeline, electrical requirements, and financing options.
What You'll Receive
Equipment Options
Different efficiency and price tiers outlined.
SEER2 & HSPF Ratings
Efficiency impact on operating costs.
Energy Cost Projections
Seasonal savings estimates for each option.
Warranty Coverage
Full warranty details and extended options.
Financing Options
Multiple plans to fit your budget.
Preparation & Location Marking
Before installation day, we prepare your space. We'll mark the precise locations where the indoor unit will mount (we confirm with you first), identify where refrigerant lines will route (within walls if possible, in attractive conduit if not), and plan the condensate drain line (usually to a nearby floor drain or exterior downspout). We also schedule any electrical work that's needed—panel upgrades, dedicated circuits, or rough wiring.
Preparation also includes protecting your home during installation. We'll lay drop cloths, secure furniture away from work areas, and minimize dust. We'll also confirm utility access—gas, water, or electrical obstacles that might affect routing—and address those ahead of time.
Preparation Checklist
Final Placement Confirmation
Indoor unit locations marked and approved.
Line Routing Plan
Refrigerant and condensate line paths mapped.
Electrical Work Scheduled
Panel upgrades or circuits coordinated.
Home Protection
Drop cloths and dust containment setup.
Utility Access Confirmed
Obstacles identified and addressed.
Installation Timeline
Schedule coordinated with your availability.
Professional Installation & Line Routing
Installation day is where precision matters. Our technicians mount the indoor unit securely—level, properly supported, and at a height you're happy with. We drill a small hole (typically 3–4 inches) through the wall to run the refrigerant lines, electrical wiring, and condensate drain to the outdoor unit. The hole is sealed with a special collar that accommodates all lines while maintaining the wall's air-tightness.
We run the refrigerant lines carefully, insulating them to prevent heat loss (or gain) and supporting them so they don't sag or kink. Line length matters—incorrect length affects charging and efficiency. We position the outdoor unit on a level pad or mounting bracket, ensuring proper clearance from walls, vents, and air intake obstruction. Electrical connections are made to code, grounded properly, and documented for safety.
Once everything is connected, we pressure-test the refrigerant circuit with nitrogen to verify no leaks, evacuate any moisture from the system, and charge with the correct refrigerant type and quantity. For homeowners who want lines hidden in walls rather than conduit, we can coordinate with electricians to run lines through existing wall cavities—a cleaner, more integrated look.
Installation Details
Indoor Unit Mounted
Secure, level, and properly positioned.
Wall Penetration Sealed
Professional collar maintains air-tightness.
Lines Routed & Insulated
Proper support and heat protection.
Pressure Tested
Nitrogen tested for leak-free operation.
Electrical Connected
Code-compliant and properly grounded.
Condensate Drainage
Efficient routing to proper termination.
Outdoor Unit Positioned
Level pad with proper clearances.
Refrigerant Charged
Exact type and quantity per specs.
Testing, Startup & Your Operation Training
Once installed, we run the system through a complete cooling and heating cycle (if applicable). We verify that the indoor unit responds to thermostat commands, that airflow is strong and well-distributed, and that temperatures are moving in the right direction. We measure refrigerant pressures to confirm proper charge. We test the condensate pump (if present) to verify it's draining properly.
We then walk you through operation: how to use the remote control, how to set temperatures, what fan speeds mean, how to interpret the display, and how to recognize warning codes if anything goes wrong. We explain maintenance—filter cleaning every 2–4 weeks during use, outdoor coil inspection annually, and what to watch for. You'll get the equipment manual, warranty documentation, and our contact information for questions.
Before We Leave
Cooling & Heating Tested
Full cycle operation verified.
Pressures Verified
Refrigerant charge confirmed correct.
Airflow Tested
Strong, well-distributed air delivery.
Condensate Drainage
Pump and drain lines tested.
Operation Training
Remote control and features explained.
Maintenance Schedule
Filter care and inspection timeline.
Full Documentation
Manuals, warranty, and contact info.
Q&A Session
All questions answered before departure.
Schedule Your Mini-Split Installation Consultation
A mini-split is ideal for specific zones—basements, additions, room-by-room control, or homes without ductwork. Let's assess whether it's the right fit for your needs.
Compare your options:
Mini-Split Installation Throughout Des Moines
We install ductless mini-split systems across Des Moines and surrounding communities, serving basements, additions, and room-specific comfort needs.
Serving Our Neighbors in & Around:
Not Sure If We Service Your Area?
We're dedicated to serving Greater Des Moines and our surrounding communities. Give us a call if you're not sure if we come to you—chances are we do.
Ankeny, IA
North metro Des Moines homeowners trust us for mini-split installations in finished basements, bonus rooms, and new additions. We've installed systems in hundreds of Ankeny homes with fast scheduling and expert integration.
Mini-Split Installation in AnkenyUrbandale, IA
Throughout northwest Des Moines and Urbandale, we install mini-splits in every home type. We're experienced with the area's housing stock and know how to route lines for minimal aesthetic impact.
Mini-Split Installation in UrbandaleAltoona, IA
Southeast of Des Moines, we provide professional mini-split installation for room-by-room comfort control. Our experience with local home designs ensures seamless integration.
Mini-Split Installation in AltoonaGrimes, IA
North of Des Moines, Grimes residents choose mini-splits for additions and zone comfort. We maintain fast scheduling and deliver expert installations every time.
Mini-Split Installation in GrimesClive, IA
West of Des Moines, we install mini-split systems in Clive's established and newer neighborhoods. Our 15 years of local experience means we know optimal placement for aesthetics and performance.
Mini-Split Installation in CliveComplete Comfort Solutions Beyond Mini-Splits
Mini-splits excel for zones, but we offer full-home options too.
Central AC Installation
If you want whole-home cooling without zones, a traditional central AC system handles it efficiently. Perfect for comprehensive home comfort.
Central AC & Heat Pump OptionsHeat Pump Installation
A ducted heat pump provides both heating and cooling from a single system—better for whole-home coverage than multiple mini-split zones.
Explore Heat Pump InstallationFurnace Installation
For homes that prefer heating and cooling separation, a furnace handles winter warmth efficiently and reliably.
Get a New Furnace InstalledMini-Split Repair & Maintenance
Keep your existing mini-split system running smoothly with expert service, filter maintenance, and professional tune-ups.
Schedule Mini-Split ServiceIndoor Air Quality Solutions
Improve air filtration and humidity control alongside your mini-split system for complete comfort and health.
Improve Your Indoor Air QualityFrequently Asked Questions About Mini-Split Installation
Ready to Install a Mini-Split System in Your Des Moines Home?
A mini-split gives you comfort, efficiency, and control without the cost and disruption of ductwork. Whether you're cooling a finished basement, heating an addition, or creating zones for independent comfort, Obsidian Heating and Cooling is ready to design and install a system that works beautifully in your space.
Our veteran-owned team has installed thousands of mini-split systems across Des Moines, Ankeny, Urbandale, Altoona, Grimes, and Clive. We're Tempstar Elite Dealers with direct manufacturer support and years of experience integrating mini-splits into every home type. When you call us, you're working with technicians who understand both the technical precision and the aesthetic integration that makes a great mini-split installation.
Explore All Mini-Split Services
See everything we handle for mini-split systems, or jump straight to a related service.