How was each head sized?
Request room loads and the selected unit’s minimum and maximum output.
Mini-split cost calculator
Plan the whole ductless project—not just equipment
Indoor-unit count gets attention, but line-set routing, condensate drainage, electrical capacity, mounting access, and finish repair often separate a simple bid from an expensive one.
Project estimator
Estimate a multi-zone mini-split project
Build a planning band from zone count, indoor-unit style, efficiency, access, and electrical scope. Every input can materially change a contractor bid.
Range: 300–3,000 sq. ft. across all planned zones.
Range: 1–6 indoor zones connected to the project.
Concealed units usually need more carpentry, drain work, and service access.
Only a licensed electrician can confirm panel capacity and code requirements.
Scope check
What can move the estimate
The estimate treats each independently controlled indoor area as a zone and applies a broad equipment-and-installation range. It is deliberately not brand-specific. Real bids should identify model numbers, matched capacities, low-temperature performance when relevant, and the exact electrical scope.
- Long or concealed line sets, condensate pumps, and exterior line-hide
- Ceiling access, drywall or carpentry work, and safe equipment mounting
- New circuits, disconnects, surge protection, or panel/service upgrades
- Cold-climate equipment, premium controls, and extended labor coverage
More indoor heads are not automatically better. Oversized heads may cycle poorly and can struggle to dehumidify. Room-by-room loads and minimum output matter.
Before you sign
Ask three scope questions
Where does water go?
Confirm gravity drains or pumps, termination points, and maintenance access.
Who owns finish work?
Put wall penetrations, line-hide, paint, drywall, and cleanup in the scope.
Next, use our mini-split sizing guide.