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Installation & replacement

HVAC installation for Connecticut and Massachusetts homes

HVAC installation done properly starts with a load calculation, not a catalog. We size heat pumps, mini splits, furnaces, boilers and central air to the house in front of us, then walk you through the Energize CT and Mass Save incentives you qualify for before you commit to anything.

CT LIC HTG #0398155/S1 MA PL #172086 NATE Certified Trane Comfort Specialist Energize CT & Mass Save Approved 4.9 across 180+ Google reviews
What we install

Start with what the house needs

Seven installation services sit under this category. Filter by what you are trying to solve and we will point you at the right one, or read through all of them.

Electric, heats and cools

Heat Pump Installation

One system that heats in winter and cools in summer. Cold-climate models hold output well below freezing, and both Energize CT and Mass Save put their largest rebates here.

Heat pump installation
Ductless, room by room

Mini Split Installation

For additions, finished attics, converted garages and older homes with no ductwork. Each head runs on its own thermostat, so you stop paying to condition rooms nobody is in.

Mini split installation
Gas or oil, forced air

Furnace Installation

Forced air heat for homes with existing ductwork. We check the duct sizing before quoting, because a new furnace on undersized returns is a noisy, short-cycling furnace.

Furnace installation
Central, ducted

Air Conditioning Installation

Central air matched to the ductwork you already have. Oversized units cool fast, shut off early, and leave the house clammy, so sizing matters more than tonnage on the box.

Air conditioning installation
Hydronic, radiators or baseboard

Boiler Installation

For the many New England homes running hot water heat. We handle gas and oil boiler replacement, including the near-boiler piping most quotes quietly skip.

Boiler installation
Heat pump plus furnace

Dual Fuel Systems

A heat pump carries the mild months and the furnace takes over in a cold snap. The changeover point gets set to your actual fuel and electric rates, not a factory default.

Dual fuel systems
Full system swap

HVAC System Replacement

When the existing system is past repair, this is the whole-system path: what stays, what goes, what the rebates cover, and what it costs to run once it is in.

HVAC replacement

Side by side

Which system fits which house

Most of the decision comes down to three things: whether the house has usable ductwork, what fuel is already there, and how cold it gets before you need backup. Here is how the seven paths compare.

SystemHeatsCoolsNeeds ductworkBest fit
Heat PumpYesYesEitherOil or propane homes chasing the largest CT and MA rebates
Mini SplitYesYesNoOlder homes with baseboard heat, additions, finished attics
FurnaceYesNoYesHomes with sound existing ducts staying on gas or oil
Air ConditioningNoYesYesAdding central cooling to a house that already has ducts
BoilerYesNoNoRadiator and hot water baseboard homes, common across the valley
Dual FuelYesYesYesHomes that want heat pump savings with furnace backup in a cold snap
Full ReplacementYesYesEitherEquipment past repair, where everything is being reconsidered at once

Ductwork is rarer here than in newer parts of the country. A large share of homes in Enfield, Windsor and the older Hartford neighborhoods were built with hot water baseboard and no ducts at all, which is why ductless mini splits and boiler replacement carry so much of the work in this area.

Rebates and incentives

What the utility programs actually pay

Both states pay heat pump rebates per ton of capacity, and both require that the work be done by a contractor registered in their Heat Pump Installer Network. We are enrolled in both, so the same crew can file either side of the state line.

Connecticut

Energize CT

Energy OptimizationReplacing oil, propane, natural gas or electric resistance as the primary heat source
$1,000/ton
to $10,000
Enhanced incentiveElectric baseboard replacement or income qualified, verified before installation
$1,500/ton
to $10,000
Standard air sourceReplacing an older heat pump, conditioning a new space, or cooling only
$250/ton
to $2,500
Ground sourceQualifying geothermal installations
to $15,000
The trap worth knowing. Projects are randomly inspected. If you applied at $1,000 per ton but the inspector finds the old system was integrated without a qualifying integrated control, the result is downgraded to $250 per ton. On a four ton system that is a $3,000 swing, and it is the single most common way homeowners here lose rebate money.
Massachusetts

Mass Save

Whole homeHeat pump serving as the primary heat source for the whole house
$2,650/ton
to $8,500
Partial homeHeat pump carrying most of the load with a backup system retained
$1,125/ton
to $8,500
Basic tierHeat pump replacement or small unconditioned spaces
$250/ton
to $2,500
Income eligibleEnhanced incentives for qualifying households
to $16,000
The refrigerant change. Systems using R-410A have been removed from the Mass Save qualified product list and earn nothing. Only R-32 and R-454B equipment qualifies. If a quote still lists R-410A, ask why before you sign it.

Financing runs alongside both. Connecticut offers the Smart-E Loan through the CT Green Bank, and Massachusetts offers the 0% Mass Save HEAT Loan. The federal 25C tax credit has expired, so for systems installed now the state programs are the whole picture. Rebate terms are revised periodically, so we confirm current amounts against the program before quoting rather than working from last season's numbers.

How an installation runs

Five steps, in this order, every time

Order matters here. Skipping the assessment is how homes end up with equipment that is wrong for the house, and it is the most common reason a system underperforms from day one.

01

Assessment

We measure the house, look at insulation, windows and existing ductwork, and calculate what it actually takes to heat and cool.

02

Options

You get more than one path, with the running cost and the available rebate on each, so the tradeoffs are visible before you decide.

03

Rebates

We handle the Energize CT and Mass Save paperwork as an approved contractor in both programs rather than leaving it with you.

04

Installation

Our own NATE certified crews do the work. Drop cloths down, old equipment hauled out, site left clean.

05

Commissioning

Airflow, refrigerant charge and controls get tested and documented, then we show you how to run it before we leave.

Why homeowners pick us

The part that shows up on your bill

  • We size it, we do not guess itEquipment gets picked from a load calculation on your house. Oversizing is the cheapest shortcut in this trade and the most expensive one to live with.
  • Licensed in both statesCT heating license HTG #0398155/S1 and Massachusetts plumbing license PL #172086, so the same crew works either side of the line.
  • Rebates handled in houseApproved contractor for Energize CT and Mass Save, and a member of both Heat Pump Installer Networks.
  • Someone answers at 2amInstallations are scheduled, but the phone is staffed 24 hours a day if something goes wrong after we leave.
★★★★★

I would highly recommend Clean Climate HVAC. Tim Mahoney provided a quote very quickly. Scott and his crew were very professional and efficient. With respect for our home, you wouldn't even know his crew were here. The whole process went smoothly, from receiving a quote to the installation of the AC unit.

Laszlo SzaboGoogle review
★★★★★

The entire crew was very professional, polite and thorough. They installed my new boiler quickly and efficiently. My basement was left much cleaner than it was before. I couldn't ask for any better results.

Richard BennettGoogle review
Common questions

Before you get a quote

Questions that come up on nearly every installation, whichever system you end up with.

Request a quote

Tell us about the house

Tell us what you have now and what is bothering you about it. We assess the house, price more than one option, and tell you what the rebates bring it down to.

Free, no obligation

Find out what your house actually needs

Tell us what you have now and what is bothering you about it. We will assess the house, price more than one option, and tell you what the rebates bring it down to.