Heat pumps & ductless mini-splits

A heat pump is one system that heats in February and cools in July, and a ductless mini-split adds it to rooms that never had proper conditioning — a finished attic, an addition over a slab, the second floor of a cape that has been unusable in August since the day it was built.

The difference between a mini-split that transforms a house and one that disappoints is sizing and placement. We measure the envelope, look at practical routes for refrigerant lines, check the electrical service, and put indoor units where they will actually move air — not just where they are easy to hang.

Fig. 01 — Heat pumps

Southeastern MA

What's included

Load calculation based on your real insulation and layout
Single-zone and multi-zone ductless systems
Ducted and hybrid heat pump configurations
Line-set routing planned around finished space
Electrical service review and coordination
Condenser pad, mounting, and drainage detail
Mass Save and utility program guidance

Load calculation based on your real insulation and layout
Single-zone and multi-zone ductless systems
Ducted and hybrid heat pump configurations
Line-set routing planned around finished space
Electrical service review and coordination
Condenser pad, mounting, and drainage detail
Mass Save and utility program guidance

When a heat pump is the right call

A room or floor the existing system never reaches
An addition, attic, or garage conversion with no ductwork
An aging oil or propane system due for replacement
Window units you are tired of hauling twice a year
Wanting cooling without adding ducts to a finished house
Planning ahead while rebate programs are available

A room or floor the existing system never reaches
An addition, attic, or garage conversion with no ductwork
An aging oil or propane system due for replacement
Window units you are tired of hauling twice a year
Wanting cooling without adding ducts to a finished house
Planning ahead while rebate programs are available

How the work goes

Sizing first, equipment second.

Walk the house

Room by room — insulation, windows, ceiling heights, and the rooms that misbehave.

Size and lay out

We calculate the load, then place heads and route the line set around finished space.

Rebate pathway

We identify which Mass Save or utility programs your project may qualify for.

Install and commission

Mount, charge, test each zone, patch penetrations, and show you the controls.

Equipment & brands

We install cold-climate rated systems from established manufacturers, including LG (J+A is an LG certified installer), chosen for the house rather than a single brand relationship. Your written proposal identifies the manufacturer, model, and included work.

Where we work

Lakeville, Middleborough, Freetown, Rochester, Berkley, Taunton, Bridgewater, Carver, Raynham, and Acushnet — plus neighboring towns within an easy drive of our shop.

FAQs

Heat pump questions, answered.

Still unsure? Ask us directly — no obligation.

Will a heat pump keep up in January?

Cold-climate models are engineered to produce heat well below freezing and are the standard installation here now. Whether yours carries the whole house or works alongside existing backup heat depends on your insulation, layout, and electrical service — the site visit settles it before anything is ordered.

How many indoor heads will I need?

It depends on the floor plan more than the square footage. An open first floor may need one well-placed head; a chopped-up 1920s layout with closed doors may need three. We size zone by zone rather than quoting a package.

Is a mini-split noisy?

Noise levels vary by model, fan speed, and location. The outdoor unit makes some noise, which is one reason we discuss condenser placement — away from bedroom windows and the neighbor line where possible.

What about rebates?

Heat pumps are the equipment Mass Save and local utility programs most actively support, including rebates and financing on qualifying installations. We help you understand what your project may qualify for and handle the paperwork with you; the terms themselves come from the official Mass Save site.

Can I keep my existing furnace?

Often yes, as backup for the coldest stretch or during a phased conversion. Some homeowners run the heat pump as the primary system and leave the furnace in place for peace of mind. We will lay out both approaches with what each means for your operating cost.

Related services

HVAC installation

Full system replacement, planned around the whole house.

Water heaters

Heat pump water heaters, which may qualify for rebates.

Carpentry & job support

Chases framed and penetrations closed up by our own crew.

Heat pumps

Find out what your house actually needs.

We size systems for your home’s heating and cooling needs — and help you work through the rebate paperwork.