2026 Mass Save Heat Pump Rebate Updates and New Rules

For homeowners in Weymouth, MA, understanding the evolving landscape of energy incentives can make a significant impact on long-term household savings. In 2026, residents of Weymouth and surrounding South Shore towns continue to benefit from the Mass Save® heat pump rebate program, but key changes are reshaping how much you can receive—and which systems now qualify.

As our community experiences cold, blustery winters and increasingly warm, humid summers, energy-efficient home upgrades are more than just nice-to-haves—they’re essential. In an area where many homes still rely on oil heating or aging HVAC systems, switching to a modern heat pump system not only improves comfort year-round but also reduces greenhouse gas emissions.

However, changes to the 2026 Mass Save program mean it’s crucial for Weymouth homeowners to act sooner rather than later, especially with lower rebate amounts and stricter requirements now in effect.

"In towns like Weymouth, where many homes date back decades, a properly installed heat pump can transform how efficiently your home performs—especially as the rules and rebates change."

Key Changes to Mass Save® Rebates in 2026

Reduced Rebate Amounts from Previous Years

The most immediate change Weymouth homeowners should note is a reduction in Mass Save® heat pump rebate values. Compared to 2025, rebate levels in 2026 have dropped by $1,500. While support is still available, Massachusetts is adjusting incentives as adoption increases.

Here’s the breakdown of new rebate tiers for 2026:

• Whole-Home Rebate: $2,650 per ton, up to a maximum of $8,500  
• Partial-Home Rebate: $1,125 per ton, up to $8,500  
• Basic Rebate: $250 per ton, capped at $2,500  
• Income-Based Turnkey Services: Up to $16,000 or up to no-cost for eligible households

It’s worth noting that the Whole-Home Rebate remains the most lucrative, particularly for Weymouth homeowners transitioning fully away from fossil fuels, such as oil or propane heating.

"If your home still uses oil or baseboard electric heat, the Whole-Home Heat Pump rebate can offset a large portion of your new system cost—as long as you meet updated requirements."

New Eligibility Rules: Low-GWP Refrigerants Required

One of the most significant 2026 updates involves the types of systems that now qualify. Mass Save® rebates now require that air-source heat pumps use approved low global warming potential (GWP) refrigerants.

Systems using older refrigerants like R-410A no longer qualify for these incentives. This rule is aligned with Massachusetts’ efforts to reduce carbon emissions at every level, from equipment choices to regional energy sourcing.

When planning a new heat pump installation in Weymouth, it's critical to verify with your installer that the unit you're choosing uses a low-GWP refrigerant approved by Mass Save®. Doing this ensures your investment qualifies for the latest incentives.

For full rebate eligibility information, visit Mass Save's official heat pump rebate page.

Why Homeowners in Weymouth Should Act Now

Rebates Are Being Reduced Over Time

The trend is clear: rebate amounts are decreasing each year. In 2025, the whole-home rebate was up to $10,000. In 2026, it’s dropped to $8,500. There's no indication that incentive levels will increase in coming years—in fact, quite the opposite.

Weymouth homeowners still have access to generous funding but waiting may result in even smaller rebates or greater system requirements down the road.

Whether you’re upgrading a colonial home in Jackson Square or a bungalow near Whitman’s Pond, timing matters.

Federal Tax Credits Are Gone in 2026

Adding to the urgency, federal heat pump tax credits are no longer available in 2026. These credits were previously a strong supplement to state-based incentives but have expired alongside several national electrification programs.

Now, Mass Save® remains one of the few robust programs left for homeowners seeking financial assistance in replacing fossil fuel heating systems.

That makes your local choices even more important—especially given Weymouth's variable climate and older housing stock, where insulation and airtightness can dramatically affect heating system performance.

“With federal credits gone and state rebates decreasing, every day you wait could cost you more out of pocket.”

Choosing the Right Heat Pump for Your Weymouth Home

Understanding System Types and Home Compatibility

Heat pumps come in multiple formats, and understanding which ones are best for your type of home can maximize return on investment. In Weymouth, where housing varies from 1940s Cape Cod-style homes to modern townhouses, custom system design is crucial.

Common heat pump types include:

• Ducted Systems: For homes with existing ductwork or during full remodels  
• Ductless Mini-Splits: Ideal for homes without ducts or for room-by-room zoned comfort  
• Hybrid Systems: Pair electric heat pumps with backup gas or oil heating, though these no longer qualify for full Mass Save® rebates

Today’s heat pumps are highly efficient, even in sub-zero Weymouth winters, particularly when installed by certified professionals who size the system correctly and account for local insulation values.

Partial vs. Whole-Home Installation

While some homeowners may start with a partial-home installation, especially if upgrading only one or two rooms, rebates are more generous for whole-home conversions.

To qualify for the full $8,500 under the whole-home pathway, your installation must:

• Replace your home’s primary heating source entirely  
• Be designed as your sole heating and cooling system (no backup oil or gas)
• Use Mass Save®-approved, low-GWP refrigerant systems
• Meet minimum system efficiency ratings

These criteria are more rigorous than in the past, but they also result in lower monthly operating costs and higher comfort levels throughout your home.

Enhanced Income-Based Rebate Options

Turnkey Services for Eligible Households

For homeowners in Weymouth who meet income thresholds, Mass Save® offers up to $16,000 in no-cost services through direct partnerships with approved contractors. This Turnkey Heat Pump Installation Track provides:

• No-cost home energy audit  
• System selection assistance  
• Full installation with priority service slots  
• Ongoing support and education

These enhanced incentives are especially valuable for seniors and fixed-income households in Weymouth, where heating bills can account for a significant share of winter expenses.

Income Eligibility Guidelines

Eligibility for income-based incentives is determined through factors such as household size and total gross income. These programs can substantially reduce or fully cover the cost of a full system, especially for homes that previously relied on fuel oil or aging electric baseboard heating.

For the most current details on qualification, homeowners can view the official Mass Save® income-eligible program on their website.

Utility Winter Discount Rate Programs

Weymouth and Winter Heating Costs

Residents in Weymouth are no strangers to bitter winter temperatures and long heating seasons. National Grid and Eversource, both dominant utility providers in the area, continue to offer discounted winter electricity rates for customers using electric heat.

This makes heat pumps even more compelling, as utility providers help defray heating costs through Seasonal Rate Reductions. These savings apply automatically in many cases when your usage pattern shows electric heat usage as a primary load.

How Heat Pumps Leverage These Savings

Modern air-source heat pumps are significantly more efficient than older electric resistance heating methods. When paired with Massachusetts’ winter electricity rate discounts, these systems cost far less to operate than oil, propane, or aging electric baseboards.

In Weymouth, where fuel prices fluctuate and homes often lack modern insulation, making the switch to a cold-climate rated heat pump with discounted electric supply can yield huge savings over time.

What You Can Do Now

As a homeowner in Weymouth, here’s how you can position yourself to take advantage of current heat pump incentives before they decline further:

• Schedule a Mass Save® Home Energy Assessment  
• Work with certified installers who offer compliant low-GWP systems  
• Choose a system that qualifies under current rebate tiers  
• Review your income status for enhanced eligibility programs  
• Don’t delay—redeem higher rebates while they’re still on offer

With a focus on electrification, efficiency, and sustainability, 2026 is a pivotal year for home energy in Massachusetts—and acting now offers Weymouth residents the best opportunity to save.