Prodigy Service

Mini Split Systems

Zoned comfort, ultra-quiet, wildly efficient.

Ductless mini splits deliver room-by-room comfort without the cost or mess of adding ductwork. Perfect for additions, finished basements, condos, sunrooms, and any space that never feels quite right — installed by factory-trained Mitsubishi and Daikin specialists.

Ductless mini splits are the reason older Massachusetts homes can finally be comfortable without tearing open plaster ceilings. They heat and cool room by room, run quietly at low speed for hours instead of blasting and stopping, and install in a fraction of the disruption a duct retrofit requires.

Mini Split Installation

Custom-designed layouts that match your home's airflow, aesthetics, and comfort goals — no oversized eyesores.

Mini Split Repair

Fast diagnostics on every major ductless brand, with upfront pricing before any work begins.

Multi-Zone Systems

Heat and cool multiple rooms independently from a single outdoor unit — total control, minimal footprint.

Where ductless wins in a Massachusetts home

The pattern repeats across Newton, Wellesley, Weston and Sudbury: a well-built older house with radiators and no ducts, a finished third floor that bakes in July, an addition on the end of a long duct run that never gets conditioned, a finished basement that's damp, and a primary bedroom that's five degrees off the rest of the house. Ductless solves all of those individually, without a whole-house retrofit. It's also the practical route in condos and in homes where the only duct path would run through finished space.

Single-zone vs. multi-zone: an honest comparison

Multi-zone systems — several indoor heads on one outdoor unit — look tidier and cost less than several separate systems. But they have a real drawback: a multi-zone compressor has to modulate to serve whichever heads are calling, so when only one small head runs, the system operates inefficiently and can short-cycle. For two or three zones with similar loads, multi-zone is excellent. For zones with wildly different loads, or where one room runs constantly and another rarely, separate single-zone systems often perform better and cost less to run. We'll tell you which case you're in.

Installation quality is most of the outcome

Mini splits fail for installation reasons far more often than manufacturing ones. The things that matter: a genuine deep vacuum with a micron gauge before charging, flare connections made with a proper flaring tool and torque wrench, line-set length and lift within the manufacturer's spec with charge adjusted accordingly, condensate that drains reliably (with a pump only when there's no gravity option), and a wall penetration properly sealed and sloped. We also route line sets deliberately — through closets, along soffits, behind gutters — because a beautifully performing system nailed across the front of your house is still a bad job.

Equipment: what we install and why

We install Mitsubishi Electric, Daikin, LG and Fujitsu, selected per project. Hyper-heating models hold full rated capacity down to about -13°F, which is what makes them viable as primary heat in Massachusetts. Indoor unit style matters too: wall-mounted heads are the most efficient and least expensive, floor-mounted units work well under windows in older homes and in rooms where a wall unit would be visually intrusive, and slim ducted cassettes hidden in a closet or dropped soffit can serve two or three small rooms with a single hidden air handler — the right answer for many historic homes where visible equipment is a non-starter.

Rebates and running costs

Ductless heat pumps qualify for Mass Save® incentives where the home's utility participates, including the whole-home tier when the fossil-fuel system is removed and the weatherization requirement is met, plus the 30% federal tax credit on qualifying equipment. Wellesley and Concord homes are on municipal light plants with separate local programs. On operating cost: a modern inverter heat pump running at low speed for long periods is dramatically cheaper than the electric baseboard or window units it usually replaces, and competitive with gas depending on your rates. We'll run the comparison for your actual bills instead of quoting a national average.

What this typically costs in Massachusetts

Real ranges from work we do in Metro Boston and MetroWest — not a teaser price. Your written, itemized quote comes after we see the house.

$4,500 – $7,500

Single-zone system

One outdoor unit, one indoor head, installed and commissioned. Before incentives.

$9,000 – $17,000

Two to three zones

Varies with head style, line-set routing complexity and electrical work.

$18,000 – $30,000

Whole-home ductless

Four or more zones with fossil-fuel decommissioning, before Mass Save® rebates.

$200 – $950

Ductless repair

Boards, sensors, fan motors and leak repair. Diagnostic fee quoted upfront.

See which Mass Save® rebates apply to you

Mini Split Systems questions we hear most

Will a mini split heat my home in winter?+

A cold-climate model will, yes. Hyper-heat systems deliver rated capacity to roughly -13°F. What matters is sizing at the design temperature and having a plan for the handful of extreme nights — either keeping the existing system as backup or specifying supplemental heat.

How loud are they?+

Indoor heads run around 19–30 dB at low speed, which is quieter than a refrigerator. The outdoor unit is audible up close but far quieter than a conventional condenser, since it modulates rather than cycling on and off at full blast.

Do the indoor units have to be on an exterior wall?+

No, though it simplifies line-set routing. We regularly route line sets through interior chases, closets and soffits to place a head where it works for the room rather than where it's easiest for us.

How many heads do I need?+

Fewer than most people assume. Open floor plans often need one well-placed head, not one per room. We do a room-by-room load calculation — overzoning is expensive and hurts performance.

Do mini splits need maintenance?+

Yes. Filters need rinsing monthly during heavy use, and the indoor blower wheel and coil should be professionally cleaned periodically — ductless heads accumulate biofilm that causes odors if ignored. Annual service also verifies charge and drainage.

Can I get Mass Save® rebates on a ductless install?+

In most utility territories, yes. Amounts depend on whether you're displacing your fossil-fuel system partially or entirely, and municipal light plant towns like Wellesley and Concord use their own programs. We confirm your specific eligibility before quoting a number.

Where we do this work

Town-by-town detail on housing stock, electrical capacity and local incentive programs.

Heat Pump Installation in Newton Mini Split Installation in Wellesley AC Installation in Weston AC Repair in Needham Furnace Installation in Lexington Furnace Repair in Concord Heat Pump Installation in Lincoln Mini Split Installation in Dover AC Installation in Sudbury HVAC Maintenance in Wayland All service areas

Explore Our Other Services

Air Conditioning

Cool comfort, done right the first time.

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Heating

Warm homes, lower bills, quiet operation.

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Indoor Air Quality

Cleaner, healthier air in every room.

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Water Heaters

Hot water when you need it — every time.

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HVAC Maintenance

Two visits a year. Far fewer emergencies.

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Air Duct Cleaning & Sealing

Cleaner air, and ducts that actually deliver it.

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