Efficiency Maine Rebates

Home insulation is a highly important aspect of home ownership, and it's one that many people don't think about until they're already in the thick of it. If you're thinking about insulating your home to keep you warm in the winter, then we've got some good news for you: efficiency Maine rebates are here to help!

What is Efficiency Maine?

Efficiency Maine is a program that helps homeowners improve the energy efficiency of their homes. The program offers rebates on insulation, air sealing, and heating systems.

What is a Efficiency Maine Rebate?

Efficiency Maine is a statewide energy efficiency program that helps homeowners and businesses reduce their energy costs by making their homes and buildings more efficient. They offer rebates to help with the cost of installing new, high-efficiency equipment in your home or business.

Why is home insulation so important?

Insulation keeps your home comfortable and safe by reducing heat loss through the walls, ceiling, and floors. It also helps to keep moisture from getting into your home through those same areas. A leaky home can lead to mold growth and other problems that can be dangerous for you and your family.

What types of things are covered by an Efficiency Maine rebate?

A variety of things are covered by an Efficiency Maine rebate: installation of new windows; installation of new doors; installation of new siding; installation of insulation in attics or walls; installation of air sealing between floors; and much more.

Who can participate in the Efficiency Maine program?

Anyone who owns a home can apply for efficiency Maine grants. The property must also be your primary residence or place of business. You can be a homeowner of any income to qualify. The building or home must be:

  • A single-family home, or
  • A Townhouse, or or
  • A 1- to 4-unit residential building located in Maine. Larger buildings, including 5 or more attached condominiums, are not eligible.
  • Space heated the entire heating season
  • Upgrade cannot be part of a new home construction project or an addition.
  • Lifetime Limits:
  • One $500 air sealing rebate per building or townhouse
  • $4,000 in insulation rebates per building or townhouse


What projects can I get Efficiency Maine rebates for?

There are a variety of projects that increase energy efficiency:

Air Sealing - Efficiency Maine Rebate

Air sealing is a process that improves the energy efficiency of a home.


It involves installing weatherstripping around doors and windows and using caulk to seal cracks in the walls and ceiling, which reduces unwanted air infiltration into the house.


The result of air sealing is more comfortable and efficient living spaces, which means you don't have to turn up the thermostat as much on a cold day or crank up your air conditioning system as high on a hot summer night. This can save you money over time by reducing your heating and cooling bills.

Basement Insulation - Efficiency Maine Rebate

Basement insulation is a great way to gain efficiency in your home. By insulating the basement, you can prevent heat from escaping through your foundation and keep it in your home. This will save you money on heating costs as well as help you feel more comfortable.


Basement insulation is easy to install and can be done by anyone with basic knowledge of how to use tools. If you are interested in installing basement insulation in your home, contact us today for more information about our services!

Wall Insulation - Efficiency Maine Rebate

Wall insulation is a great way to make your home more efficient. It helps with temperature control and can save you money on your energy bill.


Wall insulation works by creating an airtight seal between the inside and outside of your house. This keeps warm air from escaping during the winter, and keeps cool air from escaping during the summer. Because it's an airtight seal, it also helps keep moisture out of your home.


This helps reduce heating bills in the winter, because less heat is needed to keep the house at a comfortable temperature—saving you even more money!

Attic Insulation - Efficiency Maine Rebate

Attic insulation is one of the most important parts of a home's energy efficiency. A home with good attic insulation will stay cooler in the summer and warmer in the winter, saving you money on your utility bills.


Attic insulation is a material that helps keep heat from escaping through your roof and walls. There are two main types: blown-in fiberglass and batts (also known as rolls).


Blown-in fiberglass is lightweight and easy to install, making it ideal for DIYers. It's also fairly cost-effective. Batts are more expensive upfront, but they're more durable than blown-in fiberglass and require less maintenance over time. 


Both types are effective at keeping heat inside your house during the winter months and outside during the summer months!

How do I apply for the Efficiency Maine program?

There are two ways to apply for the Efficiency Maine program: online or through our website, click here. Or you can go to the Efficiency Maine website.

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Maine Attic Nightmares: Condensation, Mold, and Protecting Your Home

By Mattra Inc • August 18, 2025
That musty smell. The faint water stains on your attic ceiling. Maybe you’ve even spotted some unwelcome dark spots. If you’re a Maine homeowner, especially in our older homes, these could be signs of a serious problem brewing in your attic: condensation leading to mold growth. It's a more common issue than you might think, and it can have significant consequences for your home’s health and your wallet. Why is your Maine attic suddenly feeling like a rainforest? The culprit is often a perfect storm of factors we see frequently here at Mattra: a lack of proper air sealing and insufficient insulation. Think of your warm, humid indoor air rising into the colder attic space. Without proper air barriers, this warm, moisture-laden air sneaks through cracks and openings around wiring, plumbing, and light fixtures. Once this warm, moist air hits the cold surfaces in your uninsulated attic – like the roof sheathing – it cools rapidly. Just like water beading on a cold glass on a summer day, this cooling air releases its excess moisture in the form of condensation. And in a Maine winter, those surfaces stay cold for a long time! Several other common issues exacerbate this problem. That uninsulated attic hatch? It’s a direct pathway for warm, humid air to escape. An uninsulated chimney acts as another cold surface where condensation can form. And those bathroom and dryer vents that aren’t properly ducted to the outside? They’re pumping even more moisture directly into your attic – a recipe for disaster. So, what happens when all this condensation builds up? That’s where mold enters the picture. Mold spores are everywhere, both indoors and out. They thrive in damp, dark environments with organic materials to feed on – like the wood in your attic. Consistent condensation provides the perfect breeding ground. As mold grows, it doesn't just create unsightly stains and that telltale musty odor. It actively deteriorates the materials it grows on. Over time, mold can weaken the structural integrity of your roof sheathing and rafters, leading to costly repairs. It can also damage any stored items in your attic. Beyond the structural damage, mold growth can also impact your indoor air quality. Mold spores can become airborne and circulate throughout your home, potentially triggering allergic reactions, asthma symptoms, and other respiratory issues for you and your family. As a licensed vendor with Efficiency Maine , we understand the importance of a healthy home environment. The good news? These attic issues are often fixable! Proper air sealing prevents that warm, humid air from entering the attic in the first place. Adequate insulation helps maintain a more consistent temperature in the attic, reducing those cold surfaces where condensation forms. Insulating the attic hatch and chimney are crucial details often overlooked. And ensuring your bathroom and dryer vents are correctly ducted to the exterior is essential for removing excess moisture from your home. Addressing attic condensation and mold growth is an investment in your home's long-term health and your family's well-being. If you suspect you have an issue in your Maine attic, don't wait for the problem to worsen. Contact the experts at Mattra right here in Lewiston. We can assess your attic, identify the sources of condensation, and recommend the best solutions for mold remediation and preventing future problems through proper air sealing and insulation. Protecting your Maine home starts from the top down!

Blower Door Test

By Mattra Inc • April 3, 2025
Is Your Home Under-Insulated and Leaky? A Blower Door Test Can Tell You Many Maine homeowners don’t realize just how much money is flying out the window—literally. Drafty rooms, cold floors, and rising energy bills are often signs of poor insulation and hidden air leaks. But how do you know where your home is losing heat? A blower door test is one of the most effective tools to identify under-insulated and under-sealed areas in your home. Let’s explore how it works, why it matters, and what steps you can take to improve your home’s energy efficiency—and unlock valuable Efficiency Maine rebates in the process. What Is a Blower Door Test? A blower door test uses a powerful fan, mounted into an exterior doorway, to pull air out of your home and lower the indoor air pressure. This forces outside air in through any cracks or gaps in the building envelope. The result? A clear picture of where your home is leaking air. This test measures air changes per hour (ACH) and identifies weak points in insulation and air sealing. It helps assess how well your home keeps conditioned air in—and the outdoor elements out. An experienced technician can use this data to recommend targeted upgrades, saving you money on heating and cooling costs. How to Pass a Blower Door Test: Key Air Sealing Tips Passing a blower door test doesn’t require a full renovation—it’s about sealing the right places effectively. Here are the most common areas to focus on: 🪟 Windows and Doors Install weather stripping Use caulk or foam sealant around frames Check for gaps in thresholds or broken seals 🧱 Attics and Ceilings Seal around light fixtures and access hatches Insulate attic floors and rafters Use foam board or spray foam in hard-to-reach corners 🧰 Basements and Crawlspaces Seal rim joists with spray foam Insulate basement walls and floors Cover and seal crawlspace vents and doors 🧹 Floors and Walls Fill gaps around pipes, wiring, and ducts Seal baseboards and floor edges Add insulation in wall cavities if accessible By addressing these common problem areas, you can drastically improve your blower door test results and the overall comfort of your home. Why Blower Door Testing Matters Blower door tests aren’t just for code compliance—they’re a diagnostic tool to understand your home's efficiency. When performed by professionals, these tests: Reveal hidden air leaks Provide data for insulation and air sealing improvements Help reduce energy bills Improve indoor comfort and air quality Support home energy audit documentation During the test, technicians record the building's air leakage rate using calibrated gauges. Smoke pencils or infrared cameras may also be used to visualize the leaks. This ensures your energy upgrade dollars go exactly where they’re needed most. Mattra Handles It All—Testing, Air Sealing, and Insulation Ready to make your home more energy-efficient? Mattra offers professional blower door tests. At Mattra, we don’t just tell you what needs to be fixed—we do the work for you. As a licensed insulation and air sealing contractor, we can take your blower door test results and turn them into real improvements. From sealing drafty basements to upgrading attic insulation, our team handles every step in-house. That means fewer headaches for you—and faster results. Plus, we’ll help you navigate the Efficiency Maine rebate process , so you can maximize your savings without lifting a finger. One test. One team. One solution. Let Mattra make your home warmer, tighter, and more energy efficient—starting today.