Ductless mini splits, installed by heat pump experts.

Mini splits heat and cool your home room by room, with no ductwork to run. We design the system around your house, install it, and handle the Mass Save paperwork.

  • Heating and cooling in one system, set room by room
  • A Mitsubishi Diamond Contractor
  • Instant Mass Save® rebates up to $8,500, applied upfront
  • Our own in-house trained installers and electricians

Step 1 of 2

Start your quote

Every home is different, and the only way to design a system for yours is to see it.

A Forge installer lifting a mini split head onto its wall bracket
Google Reviews
★ ★ ★ ★ ★

4.8 Star Rating

Read reviews

How does a mini split heat and cool your home?

A mini split is a heat pump that doesn’t need ductwork, the metal channels a central system uses to carry air to vents in each room.

An outdoor unit and indoor heads

An outdoor unit connects to indoor heads, one for each room or zone, mounted on the wall, the floor or the ceiling.

Every room at its own temperature

Each head heats in winter and cools in summer, and each room can be set to its own temperature.

A cold-climate outdoor heat pump unit on a stand beside a Massachusetts homeTwo Forge installers fitting an indoor mini split head on a kitchen wall

Is a mini split right for your home?

Homes without ductwork

Multi-family homes, triple-deckers, and homes heated by an oil boiler through baseboards or radiators. Mini splits eliminate the need for new ductwork.

“We live in Jamaica Plain, on the third floor of a classic triple-decker. …After years of using window units, we decided to look into mini-splits.”

★★★★★Mattia Acetoso, Google review

Adding air conditioning to the heat you keep

If you’re keeping your heating system and want to retire the window units, mini splits add heating and cooling to the rooms you choose.

“We were looking to add air conditioning to our 1950s home with hot water baseboard heat, and wanted a system that balanced our home’s existing infrastructure with aesthetics and value.”

★★★★★Elizabeth, Google review

Replacing an old heating system

We replace oil, gas, and electric heating with heat pumps. Mini splits do it room by room, with a head in each room or zone.

“…for nearly 4 years we endured unreliable gas baseboard heating to keep warm in the winter and inconvenient window AC units to keep cool in the summer.”

★★★★★John Nguyen, Google review

Older homes, and rooms ducts can’t reach

Older houses, finished attics and basements, and additions, anywhere it’s hard for ductwork to reach.

“Forge installed our mini splits in our 160 year old house. The designer, Guy, provided a very thoughtful planning that was the least invasive of the 5 quotes I received for this project.”

★★★★★Amy Shaw, Google review

Ducts in some rooms, mini splits in others

Some homes get the best result from a mixed system: a ducted heat pump where ducts already run or can be easily installed (like an unfinished basement or attic), and mini splits where it’s hard for ductwork to reach.

Which mini splits do we install?

We install Mitsubishi, Bryant and Quilt mini splits, and we’re a Mitsubishi Diamond Contractor.

We install cold-climate heat pumps because they’re built to perform reliably in New England’s harsh winters.

We recommend the equipment that fits your house once we’ve seen it.

A Forge installer wiring an indoor mini split head, Forge Human Built on the back of his shirt

What does a mini split cost?

The price depends on things we can only measure in person: the size of each room, how much heat your home loses in winter, and what your electrical panel can carry. During and after the visit we size the system with a Manual J load calculation and check the panel, and your written price comes with the Mass Save rebate already applied.

What sets the price

Rooms and zones

How many rooms or zones you want to heat and cool.

The equipment

The system that fits your house, recommended once we’ve seen it.

Your electrical panel

Whether it needs an upgrade to carry the new load.

Mass Save Heat Pump Installer badge

Mass Save rebates for mini splits

Mass Save rebates mini splits by the ton, the same as ducted systems: up to $8,500 in 2026, and up to $16,000 if your household is income eligible. We check what you qualify for, file the paperwork, and take the rebate off your price upfront.

The Mass Save HEAT Loan, at 0%

Most Forge customers finance through the Mass Save HEAT Loan: 0% interest, up to $25,000, spread over as long as seven years. We guide you through it and handle the filing. Mass Save authorizes the project and the lender approves you.

2026 Mass Save rates, for systems installed January 1 to December 31, 2026. Program eligibility requirements and restrictions apply, and offers are subject to change or cancellation.

What to expect, start to finish.

  • Tell us about your home. Two minutes on the form: your current system and what you want out of the change.
  • Design the right system. During and after your home visit, we do a Manual J to properly size the system, a Manual S to pick the right equipment, a Manual D for duct designs, and an electrical load calculation.
  • Scope and quote. The system we recommend, the work it involves, and a written price with the Mass Save rebate already applied.
  • Rebates and financing. We check eligibility, file the paperwork, apply the rebate upfront, and walk you through the 0% HEAT Loan.
  • Install, then aftercare. We pull the permits, schedule the work, register the equipment for warranty, close the permits out, and stay on for service.
Get started
A Forge crew member arriving at the front door of a home

Trusted by homeowners across Massachusetts

Mitsubishi Diamond Contractor badge

We recently had a mini-split system installed and the experience from start to finish was great.

Our project coordinator Ryan and Team Lead Ili kept everything organized communicated clearly throughout the process, and made sure all of our questions were answered.

Suzanne Hemmat
Google review

We are so happy with our new heat pump and ductless AC/heat system!

Forge did a great job with everything - the sales, designing the new system, help coordinating insulation, rebate, and the installation.

Sara Wilhelm
Google review

Very satisfied with the entire process installing mini splits throughout my home.

The estimate (Guy), the person managing the contract (Ben), and especially the two young men who installed the system (Andrew and Esse). I would highly recommend this company for HVAC work.

Cathy B
Google review

These guys are awesome.

They installed some mini splits at my home. Were very courteous, professional and acted like they weren’t there. Not intrusive at all.

Tynan Bruso
Google review

The Forge team approach including sales, project management and installation resulted in a successful project.

They developed a creative solution for installing 2 systems in a area with limited space. … In addition the pricing of the project was reasonable and fair and receiving the MassSave rebate up front was a real bonus.

Jeff Walker
Google review

After fourteen quotes across five vendors … I am currently sitting in my air-conditioned living room and couldn't have been happier with Forge.

…the ONLY quote we got — from any of several local reputable providers — whose calculations and recommendations for our needs matched two calculations two separate independent assessors I contacted…

Chris Peterson
Google review

From initial contact to system design and installation, every person from Forge who came to our home exceeded every possible expectation.

They came on time, left each room cleaner than they found it, patiently answered our questions…

paul s
Google review

I chose Forge for a heat pump project because of their strong online reviews and a very thorough, fairly priced quote.

…Navigating rebates and the HEAT loan is notoriously tricky, but Forge managed it end-to-end and handled the rebate directly so I only had to pay the net price.

Jimmy Kaduboski
Google review

Bought a new home and Forge was recommended by Electrify Arlington coordinator (they service a lot of the area around Boston).

…Even when we had a small issue from condensation in one of the units they were quick to come back out and re-check everything to make sure it was working which is the really test.

Andrew Murphy
Google review

The whole team at Forge has been incredible.

Dave, who did our estimate for a two system heat pump, was incredible and extremely knowledgeable. … He did measurements, used tools to check airflow, and built a 3D model of our home to ensure we were getting the best system for the size.

Samuel Selva-Rodriguez
Google review
A finished mini split head mounted above a doorwayA cold-climate outdoor heat pump unit on a stand among fallen leavesA Forge electrician working in an open electrical panelTwo Forge installers connecting the line set behind an indoor headA Forge installer pressing an indoor mini split head onto its wall bracketThe Forge crew beside two finished outdoor heat pump units at a Massachusetts home

Mini split installers near you, based in Newton

Forge is based in Newton, MA. Our own installers and electricians put in heat pumps in towns across Massachusetts, most often in Greater Boston, MetroWest, the North Shore and Worcester County.

Including Boston, Cambridge, Somerville, Brookline, Newton, Wellesley, Watertown, Belmont, Arlington, Medford, Quincy, Beverly, Worcester and more.

Two minutes, and every quote starts with a home visit.Get started

Heat pumps are the only thing we install.

Massachusetts homes, our own crews, and Mass Save paperwork handled.

Get started