Mass Save® Home Energy Assessments in Marlborough, MA

*Home Energy Assessments are Required to Qualify for the Mass Save® Program

Providing No Cost Home Energy Assessments to Marlborough Homeowners

Endless Energy is a Mass Save® Home Performance Contractor (HPC) and member of the Mass Save Heat Pump Installer Network (HPIN) serving homeowners throughout Marlborough, MA and surrounding communities. As a family-run company with an A+ Better Business Bureau score, we offer uncompromising quality and service excellence to our neighbors in Middlesex County.

Our team at Endless Energy conducts Mass Save home energy assessments in Marlborough, MA. We’ll help you apply for zero-percent financing through Mass Save’s HEAT Loan program, which offers up to $25,000 in 0% financing for qualifying upgrades, subject to lender approval. After your energy audit, you also unlock a number of rebates for energy-efficient upgrades. We understand that Marlborough homeowners face unique challenges, from older historic homes near downtown to newer developments near Lake Williams.

What is a Home Energy Assessment and Why Do You Need One?

  • A home energy assessment, sometimes called a home energy audit, reveals how your home consumes and loses energy. During a Mass Save® energy audit in Marlborough, one of our certified energy specialists walks through your home, identifying areas where you could be saving energy (and money). You receive a detailed custom report outlining findings, plus potential access to Mass Save rebates and enhanced incentives for income-qualified households. Rebates vary by installation type and system size.
  • Many Marlborough homeowners have questions about drafty rooms, high energy bills during New England winters, inadequate insulation, and whether their heating and cooling equipment works efficiently. A home energy assessment in Marlborough, MA answers these questions while identifying energy-saving opportunities. You must complete the home energy assessment through a Mass Save qualified provider like Endless Energy to unlock rebate and HEAT Loan eligibility.
  • The assessment takes about two and a half hours, depending on your home’s size and complexity. For Marlborough residents dealing with the region’s temperature extremes, from humid summers to freezing winters, understanding where your home loses energy makes a significant difference in both comfort and cost.
A construction worker in safety gear and a hard hat inspects or installs a metal ventilation duct in an industrial building.

*Mass Save® vendors and contractors include, but are not limited to, energy services contractors, heat pump installers, home energy raters, engineers, architects, community-based organizations, and other energy efficiency organizations and their subcontractors that partner with Mass Save® Sponsors to deliver energy efficiency programs.

Am I eligible for the Mass Save® Program in Marlborough?

Mass Save® program eligibility primarily depends on being a Massachusetts resident with a qualifying property. Most one- to four-unit homes in Marlborough qualify, and certain rebates are available for properties with five or more units.

 

To participate, you’ll need to be a customer of participating utility companies serving Marlborough, including Eversource, National Grid, or other eligible providers. The program requires a home energy assessment through a qualified Mass Save HVAC services contractor before you can access most rebates and incentives. Equipment installations must use Mass Save-approved products and meet program requirements. 

 

If you’re unsure whether you qualify, Endless Energy can help check your eligibility and guide you through the entire process.

 

Endless Energy provides energy assessments at no cost to customers of:
  • The Berkshire Gas Company
  • Cape Light Compact
  • Eversource
  • Liberty
  • National Grid
  • Unitil

If you’re unsure whether you qualify, don’t hesitate to contact our team. We’ll walk you through the process and help maximize your available rebates and incentives.

Benefits of Mass Save® Home Energy Assessment for Qualifying Marlborough Homeowners

 

The assessment is subsidized through the Mass Save program for qualifying participants, making it a risk-free way to start your energy-saving journey. Completing home energy assessments in Marlborough, MA unlocks potential rebates and incentives for energy-efficient products and services.

 

  • No-cost professional service for eligible participants with no obligation to implement any recommendations.
  • Eligibility for substantial incentives, including the Mass Save HEAT Loan program, which currently offers up to $25,000 in 0% financing for qualifying upgrades, subject to lender approval.
  • Personalized recommendations specific to your home’s age, construction, and comfort priorities.
  • Improved year-round comfort through proper weatherization that handles both hot summers and cold winters in New England.
  • Reduced energy bills depending on implemented measures and usage patterns.
  • Potential property value increases as energy-efficient homes become more attractive in Marlborough’s real estate market.
  • Additional income-based benefits with enhanced incentives available for qualifying households.

 

Eligible homeowners can take advantage of a variety of Mass Save® rebates that make energy-efficient home upgrades more affordable than ever. Available incentives include:

 

  • 70%–100% off insulation upgrades
  • Free air sealing to reduce drafts and improve comfort
  • Whole-home heat pump rebates of $2,650 per ton, up to $8,500 total
  • Partial heat pump rebates of $1,125 per ton, up to $8,500
  • Basic heat pump rebates of $250 per ton, up to $8,500
  • Instant rebates of $750 on qualifying heat pump water heaters

 

You may also qualify for additional local or municipal rebates, depending on where you live. Because rebate programs and incentive amounts can change, we recommend reaching out to our team for the latest updates and to confirm your eligibility.

Instant No-Cost Savings

 

After completing Mass Save® energy audits in Marlborough, residents may gain access to substantial rebates and savings opportunities based on eligibility. No-cost Mass Save home energy assessments are subsidized for customers of the Berkshire Gas Company, Cape Light Compact, Eversource, Liberty, National Grid, and Unitil. Equipment must be installed by participating Mass Save contractors like Endless Energy to qualify, and rebate amounts depend on eligibility, utility participation, and measure qualification.

 

Available Mass Save® rebates include:

 

  • Insulation and air sealing (75-100% off for qualified participants).
  • Heating and cooling (up to $16,000 for whole-home, partial-home, or basic installations).
  • Mini-split heat pumps (up to $16,000 off).
  • Heat pump water heater (up to $750, plus potential federal tax credits).
  • Clothes dryers and other appliances ($50 rebate for eligible Energy Star-certified appliances).
  • Induction stoves (up to $500 rebate).
  • Potential discounts on programmable and smart thermostats for remote temperature control and optimized heating schedules.
  • Possible no-cost advanced power strips to reduce phantom energy loads.
  • Available no-cost, water-saving showerheads and fixtures based on what’s provided during your assessment.

 

What To Expect With Your Home Energy Audit in Marlborough

 

Mass Save® home energy assessments are provided at no cost to qualifying participants through the Mass Save program. During the visit, our certified energy specialist conducts a comprehensive evaluation of your home’s energy performance, examining everything from heating and cooling systems to insulation levels and air leakage points.

 

You will:

  • Receive an in-depth report on your home’s energy efficiency with specific improvement recommendations.
  • Open the door to exclusive rebates, zero-percent financing options, and incentives based on your eligibility.
  • Get diagnostic testing to identify exactly where your home loses energy and costs you money.
  • Learn about receiving possible energy-saving items at no cost, which can include smart. thermostats, low-flow showerheads, and advanced power strips.

 

Incentives You Eligible for Through a Mass Save® Home Energy Audit in Marlborough

By taking part in a Mass Save energy audit, you may also be eligible for the following:

 

Maximize Your Marlborough Home’s Energy Efficiency

 

The Mass Save program provides a clear path to improving your Marlborough home’s comfort and efficiency while taking advantage of available incentives. 

 

Mass Save® home energy solutions

 

The program offers comprehensive energy assessments for eligible homes throughout Marlborough, providing a complete picture of your home’s energy performance. You may gain access to heating and cooling upgrades with potential savings, plus benefits like rebates on qualifying heat pumps, water heaters, and energy-efficient appliances.

 

Professional insulation services

 

At Endless Energy, our experienced technicians provide tailored insulation solutions for attics, walls, basements, and crawl spaces. Proper insulation prevents heat loss in winter and heat gain in summer while improving overall comfort. Regular check-ups can identify and address potential issues before they become major problems.

Mass Save Road Map to Comfort and Savings

Two workers in safety gear inspect and work on an open ceiling panel in a building under construction or renovation.
Orange icon of a house with a magnifying glass showing a check mark inside, set against a light circular background.
Home Energy Assessment
  • Provided at no-cost via the Mass Save® Program
  • Receive an in-depth report on your home’s energy efficiency
  • Open the door to exclusive rebates, financing, and incentives
Person wearing a blue hard hat and work vest uses a power drill to install or repair a panel in a ceiling.
An orange wind icon centered on a light peach circular background.
Air Sealing & Insulation
  • Typically 75% or 100% off insulation via Mass Save®
  • Patch drafts, ensure attic insulation is up-to-date
  • Homeowners typically see return on investment after one winter
A person wearing an N95 mask sits on the floor next to a large, black AeroSeal machine with plastic tubing attached; another person stands nearby.
An orange icon of a mounted air conditioner centered on a light peach circular background.
Air Source Heat Pumps & AC
  • Hyper efficient units provide both heat and air conditioning
  • Receive whole-home heat pump rebates up to $16,000 via Mass Save®*
  • Finance for $0 down with no interest for 7-years via the Mass Save Heat Loan
A gray Ruud water heater with digital display is installed against a concrete wall, with exposed copper and PVC pipes connected to it.
Orange icon of a water heater with pipes and steam lines on a light peach circular background.
Hot Water Heaters
  • $750 Rebate per unit for heat pump water heaters
  • $1,500 Rebate per system for split system heat pump water heaters

  • $2,000 Federal Tax Incentives*
  • *25C Energy Efficient Home Improvement Credit

FAQ: Marlborough Home Energy Assessments

Is Mass Save® Home Energy Assessment worth it?

 

Yes, a Mass Save home energy assessment in Marlborough is definitely worth it because it’s subsidized for eligible participants and serves as the gateway to accessing significant rebates and incentives. Most Marlborough homeowners find that implementing even a few recommendations results in noticeable comfort improvements and lower energy bills.

 

What is the cost of a home energy assessment through the Mass Save® program?

 

The assessment is provided at no cost to qualifying participants. The Mass Save program is funded through a small charge already on your monthly utility bill, so participation costs nothing additional. There’s no catch, no obligation, and no pressure to implement any recommendations.

 

How much time does a Home Energy Assessment take to complete?

 

A home energy assessment takes about two and a half hours, depending on the size of your home. During that time, an energy specialist walks through your Marlborough home making recommendations while potentially installing eligible energy-saving measures at no cost.

 

Do I have to implement all recommendations from the home energy assessment?

 

No, customers participating in a home energy assessment are not obligated to implement any recommendations. However, we recommend implementing improvements that align with your goals to lower your carbon footprint and reduce energy costs.

 

Who needs to be home during the energy assessment?

 

The homeowner, decision-maker, or person most knowledgeable about the home should be present throughout the energy audit. If the homeowner is unavailable, someone knowledgeable about the home and at least 18 years old must be present.

Are all home energy assessments in-person?

 

We offer both virtual and in-person home energy assessments to our Marlborough neighbors. You get the same benefits and quality of service with either option, with virtual assessments offering scheduling flexibility and in-person assessments allowing more detailed diagnostics.

 

Read our 5-star reviews on Google.

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Based on 606 reviews
Great experience Aaron is a huge help
Arron came over a couple ago and after cleaning the mini split he suggested that the internal parts be washed out. He showed me the process and it looked quite intensive so I did. Today Arron and co-worker Mike and did the process. Below are the pictures that show how dirty these 3 year old units were and these great hard working, great personality guys worked. I am glad to be a customer of Endless Energy and these 2 great employees and the rest of the company.
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Tevin is awesome. So honest and kind. He loves his job and does it well . 10 stars for Tevon .
Response from the owner:Thank you so much for your kind words! We’re thrilled to hear that Tevin made such a positive impression on you during your plumbing service. At Endless Energy, we strive to provide exceptional service, and it's great to know that our team is delivering on that promise!
CJ found the problem quickly. He was able to get us up and running except for down mini split. Ordered part, received within a couple of days. CJ came back and installed new part. Now whole system is operating as it should. Thanks, CJ.
Response from the owner:Thank you for the high praise! It's wonderful to hear that you're happy with our service.
Great response, service for smoke installation needed and courteous professionals Repeatedly used this company and haven't disappointed.
Response from the owner:Thank you, C G! We're thrilled to hear you had a great experience with our Electrical Service Team at Endless Energy. Our team always aims to provide courteous and professional service, so your kind words mean a lot to us. We appreciate your support!
Your guys were here yesterday to upgrade the insulation in my home. They did a great job, left the place cleaner than they found it, and even saved me some attic floor space that I expected to lose!
Response from the owner:Thank you so much for your wonderful review! We're thrilled to hear you had a great experience and appreciate your support. We look forward to welcoming you back soon!
Our experience working with Endless Energy was excellent from start to finish. They just installed two heat pumps in a non-profit conservation building in Plymouth. Our sales rep, Nate M., was knowledgeable, thoughtful and really listened to our questions. He responded quickly to email and voice mail. Our building is older and had some quirky additions. I had confidence that Nate's recommended equipment would meet our needs.

The installation team, led by Ethan J., was outstanding. Ethan had to remove an old oil burner that was full of soot - a messy, messy job. They did an excellent job removing the old and installing two new heat pumps - one for a main building and a smaller one for the addition. What impressed me was Endless Energy's depth of staffing - we had 3 installers, 2 electricians, 3 managers (install, QC, & service) on-site reviewing the work in progress.

Because of the soot from the old burner, the techs left footprints on some of the carpet before they put down dropcloths. The install manager saw them and told me Endless would arrange for carpet cleaning. I even received a call from the COO saying she was aware of the soiled carpet and would have someone contact me to set up a cleaning.

When the job was done, QC manager Jeff T. spent over an hour walking us through the operation and maintenance for each heat pump, including tips on how to run them most efficiently. We are thrilled with the new systems. I would recommend Endless Energy to anyone interested in upgrading to a heat pump. They really have their act together.
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Response from the owner:Linda all we can say is wow! Thank you so much for taking the time to write such a heartfelt review, as a locally owned business this means so much to us! We shared your review to all of our employees applauding their efforts but also as a reminder of why we do what we do! We are so grateful to have you as a customer and wish you years of comfort ahead!
Harim worked exceptionally hard trying to figure out what was wrong with our system. He was able to get the job done in one day. He called in a second set of hands when a problem arised and together they both solved it. Thank you so much for fixing the issue.
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Response from the owner:Thank you for your kind words! We're thrilled to hear that Harim and his HVAC service team were able to resolve the issue quickly and efficiently. Your satisfaction is our top priority, and we appreciate your trust in Endless Energy!
Great experience with Endless Energy. Huge help and got my AC all set for the hot weather this Summer. R & M were a great pair!
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Response from the owner:Thank you so much for your kind words! We're thrilled to hear that Rob & Mike provided you with excellent HVAC service and got your AC ready for the summer heat. If you need anything else or have any questions, feel free to reach out - your comfort is our priority!
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Call Endless Energy for Your Marlborough Mass Save® Assessment

Endless Energy has been serving Marlborough homeowners for years, helping families throughout Middlesex County improve their homes’ comfort, efficiency, and value. Our team understands the unique challenges Marlborough residents face, from the area’s climate extremes to the mix of historic and modern housing stock.


Don’t let another heating season go by paying more than necessary for home comfort. A Mass Save energy audit in Marlborough is your first step toward a more efficient, comfortable, and cost-effective home. Contact us directly, or use our online scheduling tools to book your no-cost Mass Save home energy assessment today.

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