How much does it cost to replace a ductless mini split system?

You’ll get an exact replacement price after a free site assessment and Manual J design. Total cost depends on number of zones, brand (Mitsubishi, LG, Fujitsu, Custom Comfort), any electrical upgrades, line‑set routing, access/architecture, and permit requirements. Mass Save instant rebates can be deducted from your estimate, up to $16,000 on qualifying heat pumps. 0% HEAT Loan financing is available on eligible projects. A 10‑year limited labor warranty is optional and requires annual maintenance.

Quick steps:

• Schedule a free assessment and load calculation.
• We confirm design and electrical capacity, then handle permits and rebate paperwork.
• You receive an itemized quote with any instant rebates applied.

Updated: 2025-12-22

Need help in Weston, MA? Call (508) 501-9990 or book online.

"The unit was installed, looks good, and works great!" — Victoria N.