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Mini-Split Systems
Finlayson Electric handles all the electrical wiring for mini-split system installations — ensuring your new system is safe, efficient, and set up correctly from day one.
Mini-split systems have become one of the most popular home comfort upgrades in New England — and for good reason. They deliver efficient, zone-controlled heating and cooling without the cost and disruption of installing ductwork. Whether you’re finishing a basement, adding a room, or looking to reduce your dependence on oil or gas heat, a mini-split is one of the best investments you can make.
But like any electrical installation, it has to be done right. A mini-split system requires a dedicated electrical circuit, proper disconnect installation, and in some cases a panel upgrade to support the additional load. Improper wiring leads to tripped breakers, voided warranties, and potential safety hazards.
At Finlayson Electric, we handle the complete electrical side of mini-split installations — cleanly, correctly, and with full code compliance so your system runs the way it was designed to.
What's Included
The Complete Electrical Side of Your Mini-Split Installation.
Dedicated Circuit Installation
Every mini-split system requires its own dedicated electrical circuit. We run the circuit from your panel to the unit location — cleanly and to code.
Disconnect Box Installation
We install a properly rated disconnect box near the outdoor unit, as required by code and manufacturer specifications.
Panel Assessment & Upgrades
Before any work begins, we assess your existing panel to confirm it has the capacity to support the new system. If an upgrade is needed, we handle it as part of the same project.
Line Set & Wiring
We handle all electrical wiring between the indoor and outdoor units, ensuring proper connections and clean routing that protects your investment.
Multi-Zone System Wiring
Installing a multi-zone system with multiple indoor units? We wire each zone correctly so every unit operates independently and efficiently.
Permits & Inspections
All mini-split electrical work is permitted and inspected to ensure full code compliance — required by most manufacturers to maintain your warranty.
The Right Electrical Setup Makes Your System Last.
A mini-split is a serious investment. Here’s why getting the electrical side right matters as much as the unit itself:
Year-Round Comfort
Modern mini-splits are rated to heat efficiently down to -13°F — making them a genuine primary heat source in New England. Proper electrical installation ensures your system performs at its rated capacity.
Energy Efficiency
Mini-splits are among the most energy-efficient systems available. But that efficiency depends on a properly sized and wired electrical setup. Undersized wiring reduces performance and increases your bills.
Warranty Protection
Most mini-split manufacturers require the electrical installation to be performed by a licensed electrician. Improper wiring voids your warranty — often on a system that costs thousands of dollars.
Home Value
A professionally installed mini-split is a genuine selling point — particularly in older New England homes without central air. Buyers notice, and appraisers do too.
Get In Touch With Us
Residential Services
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Give us a call today for a free estimate. We’d love to help keep your home’s electrical system safe and up to code.