Endless Energy
Marlborough, MA
All
No-cost Mass Save Home Energy Assessments including free energy-saving products, rebates worth thousands on qualifying upgrades (heat pumps, insulation, new heating systems), and 0% financing for qualified upgrades.
Expires: April 1, 2026Conditions:Eligibility required; subject to Mass Save program terms and qualification for rebates/financing.
Offer Features:- Free assessment.
- Free energy-saving products.
- Rebates.
- 0% financing.
How to Redeem:Call (508) 501-9980 or book online; qualify through Mass Save program and follow enrollment steps to receive incentives.
No-Cost Mass Save® Home Energy Assessments for Needham homeowners. Eligible customers can receive free energy-saving products, rebates worth thousands on new systems, and 0% financing for qualified upgrades.
Expires: April 1, 2026Conditions:Mass Save® program eligibility; available to eligible Needham homeowners.
Offer Features:- Free energy-saving products; rebates worth thousands; 0% financing for qualified upgrades.
How to Redeem:Contact Endless Energy online or by phone to schedule a Mass Save Home Energy Assessment (call (508) 501-9980 or use the website).
"Mass Save program rebates: up to $10,000 in rebates for eligible customers (applies to a range of home energy upgrades listed on the page). Endless Energy can deduct Mass Save rebates from customer estimates immediately.".
Expires: April 1, 2026Conditions:"Eligibility required through Mass Save program".
Offer Features:- "instant rebate deduction".
How to Redeem:"Qualify through the Mass Save program; Endless Energy may deduct eligible Mass Save rebates from estimates at time of sale.".
More Details:https://goendlessenergy.com/heat-pumps/cambridge/0% financing options and instant upfront rebates on eligible products.
Expires: April 1, 2026Conditions:On eligible products.
Offer Features:- 0% financing; instant upfront rebates.
How to Redeem:Contact Endless Energy for details.
Water Heater
Instant rebates of $750 on qualifying heat pump water heaters; $1,500 rebate for split-system heat pump water heaters (Mass Save).
Expires: April 1, 2026Conditions:Instant rebate amounts shown (e.g., $750 per heat pump water heater unit; $1,500 per split-system heat pump water heater) via Mass Save; eligibility and amount depend on system type and program rules.
Offer Features:- Instant rebate available for qualifying units.
How to Redeem:Complete Mass Save home energy assessment and install Mass Save-approved heat pump water heaters through a participating contractor to receive rebate.
Instant heat pump water heater rebates of up to $750 per unit; $1,500 rebate per split-system heat pump water heater also noted.
Expires: April 1, 2026Conditions:Rebate amounts vary by system: $750 instant rebate per heat pump water heater unit; $1,500 per split-system; equipment must be qualifying and installed by a participating contractor.
Offer Features:- Instant $750 rebate; $1,500 split-system rebate.
How to Redeem:Obtain a Mass Save HEA and have a qualifying heat pump water heater installed by a Mass Save participating contractor to receive rebates.
Ac Installation
0% interest financing and payments as low as $120/month available for AC installation.
Expires: April 1, 2026Conditions:Unknown.
Offer Features:- 0% interest.
- Monthly payments starting at $120.
How to Redeem:Call (508) 501-9980 or fill out the online form to schedule a consultation and apply for financing.
More Details:https://goendlessenergy.com/ac-installation/Central AC installation starting at $7,500 installed (coil and condenser on a furnace) and $14,000 for condenser with air handler.
Expires: April 1, 2026Conditions:Starts at $7,500 installed for a coil and condenser on a furnace; $14,000 for a condenser with an air handler.
Offer Features:- Starting price.
How to Redeem:Contact Endless Energy at (508) 501-9980 or use the online contact form to request an upfront quote.
More Details:https://goendlessenergy.com/ac-installation/
Heat Pump
Energy Saver Home Loan Program (Mass Save HEAT Loan): low-cost financing for heat pumps (loans $10,000–$100,000; low interest rates 0.5–2%; 20-year term; 18-month interest-only; no cash down).
Expires: April 1, 2026Conditions:Income-qualified Massachusetts homeowners; single-family and small multifamily (up to 4 units); eligibility based on household income relative to area median income.
Offer Features:- Loans $10,000–$100,000.
- 0.5–2% interest rates.
- 20-year term.
- 18-month interest-only starter period.
- No cash down.
How to Redeem:Book a Mass Save Home Energy Assessment and apply for the Energy Saver Home Loan through Endless Energy; contact Endless Energy at (508) 501-9980 or via website for details.
0% Mass Save HEAT LOAN financing available for heat pump projects.
Expires: April 1, 2026Conditions:Unknown.
Offer Features:- 0% financing.
How to Redeem:Contact Endless Energy to get set up for the Mass Save HEAT Loan financing.
Mass Save® rebates of up to $8,500 may be available for heat pump systems.
Expires: April 1, 2026Conditions:Applies to heat pump systems (may qualify for Mass Save rebates of up to $8,500).
Offer Features:- Rebate available through Mass Save program.
How to Redeem:Endless Energy can walk you through rebate eligibility and application; contact them to learn more.
More Details:https://goendlessenergy.com/ac-installation/Win a free heat pump (grand prize value up to $20,000). Enter by scheduling a no-cost consultation between 2026-02-15 and 2026-03-31. One winner drawn 2026-04-01; prize applied as refund or installation discount.
Expires: March 31, 2026Conditions:Schedule a no-cost heat pump consultation with Endless Energy between 2026-02-15 and 2026-03-31 to be entered into drawing; May not combine with any other offer; see Official Rules; installation must be completed by 2026-05-01.
Offer Features:- Prize up to $20,000; no purchase necessary; must complete installation by 2026-05-01.
How to Redeem:Schedule a no-cost consultation by 2026-03-31 to be entered. Winner drawn April 1, 2026; if system already installed winner receives a refund by check; if not, prize applied as discount on installation day. See Official Rules.
More Details:https://goendlessenergy.com/giveaway/
Heating System
Get your free copy of the 2026 Mass Winter Heating Guide by completing the online form on the site.
Expires: April 1, 2026Conditions:Provide name, email, phone, and zip to receive the free guide.
Offer Features:- Digital PDF.
How to Redeem:Complete the online form (name, email, phone, zip) to receive the download.
More Details:https://goendlessenergy.com/massheatingguide/
Indoor Air Quality Services
$100 Off iWave Indoor Air Quality (iWave On) promotion.
Expires: April 1, 2026Conditions:Unknown.
Offer Features:No features mentioned.
How to Redeem:Unknown.
More Details:https://goendlessenergy.com/hvac-ductwork/
Hvac Maintenance
Home Energy Audits: Discover potential energy savings with our no-cost home energy assessments. Our experts will identify inefficiencies and recommend solutions to improve your home’s energy performance.
Expires: April 1, 2026Conditions:Unknown.
Offer Features:- No-cost home energy assessment.
How to Redeem:Contact Endless Energy to schedule a no-cost home energy assessment.
No-cost home energy assessments provided by certified auditors to identify efficiency improvements and immediate savings on insulation and air sealing.
Expires: April 1, 2026Conditions:Unknown.
Offer Features:- Comprehensive analysis.
- Instant savings on insulation and air sealing.
How to Redeem:Contact Endless Energy to schedule your no-cost home energy assessment.
Insulation Services
No-cost Mass Save Home Energy Assessments for Newton residents.
Expires: April 1, 2026Conditions:Unknown.
Offer Features:- No-cost assessment.
How to Redeem:Select "Schedule a free energy assessment" on the Newton 4 Our Future Campaign page or contact Endless Energy to schedule.
Free air sealing to reduce drafts and improve comfort (Mass Save eligible).
Expires: April 1, 2026Conditions:Free air sealing available to qualifying Mass Save participants; eligibility and scope determined during the home energy assessment.
Offer Features:- No-cost air sealing with qualifying assessment.
How to Redeem:Receive free air sealing during or following a qualifying Mass Save home energy assessment provided by a Mass Save contractor.
"Insulation rebates (listed as 75%–100% off; page specifically notes 75% off insulation services, approx. $2,000 value) available via Mass Save.".
Expires: April 1, 2026Conditions:"Approx. $2,000 value; eligibility through Mass Save".
Offer Features:- "75% off insulation".
How to Redeem:"Qualify through Mass Save program to receive insulation rebates; Endless Energy participates in Mass Save and can apply rebates to estimates.".
More Details:https://goendlessenergy.com/heat-pumps/cambridge/No-cost sealing of air leaks and targeted air sealing (approx. $1,200 value) available through Mass Save Home Energy Assessments.
Expires: April 1, 2026Conditions:No-cost sealing available after HEA; targeted air sealing referenced as approx. $1,200 value.
Offer Features:- $1,200 targeted air sealing value.
How to Redeem:Schedule a Mass Save Home Energy Assessment to receive no-cost air sealing through the Mass Save program.
Hvac Installation
Customer review on page states: "Program incentive saved us over $2,500" after a MassSave audit.
Expires: April 1, 2026Conditions:MassSave program incentive mentioned in customer review.
Offer Features:- Program incentive.
How to Redeem:Contact contractor or MassSave program to determine eligibility and apply incentives.
"Heating and cooling rebates up to $16,000 available through Mass Save for eligible HVAC/heat pump installations.".
Expires: April 1, 2026Conditions:"If eligible through Mass Save".
Offer Features:- "unknown".
How to Redeem:"Apply through Mass Save program; Endless Energy can assist and may deduct rebates from estimates.".
More Details:https://goendlessenergy.com/heat-pumps/cambridge/0% financing options to make upgrades affordable for installations and upgrades.
Expires: April 1, 2026Conditions:Unknown.
Offer Features:- 0% financing.
- Assistance leveraging rebates and tax credits.
How to Redeem:Contact Endless Energy for details and to apply for 0% financing options.
Instant rebates on eligible installations and extensive manufacturer warranties.
Expires: April 1, 2026Conditions:Eligible installations.
Offer Features:- Instant rebates.
- Extensive warranties.
How to Redeem:Contact Endless Energy to confirm eligibility and available instant rebates for installations.
Ductless Mini-split
Up to $16,000 off mini-split (ductless) heat pumps via Mass Save rebates.
Expires: April 1, 2026Conditions:Rebates up to $16,000 for mini-split heat pumps through Mass Save; subject to eligibility, product approval, and participating contractor installation.
Offer Features:- High-value rebate for mini-split installations.
How to Redeem:Complete Mass Save home energy assessment and install Mass Save-approved mini-split equipment through a participating contractor to receive rebate.
Ac Repair
Flexible financing: 0% financing options to make your repair more affordable.
Expires: April 1, 2026Conditions:Unknown.
Offer Features:- Same-day service.
- Upfront rebates.
- Limited warranty.
How to Redeem:Contact Endless Energy to inquire about 0% financing; terms and eligibility apply.
More Details:https://goendlessenergy.com/ac-repair/boston-ma/
Thermostat And Smart Controls
Programmable and smart thermostats offered at no cost via the Mass Save program as part of Home Energy Assessment incentives.
Expires: April 1, 2026Conditions:Programmable and smart thermostats provided at no cost through Mass Save after HEA when eligible.
Offer Features:- No-cost programmable thermostats.
How to Redeem:Complete a Mass Save Home Energy Assessment and qualifying work through a participating contractor to receive a no-cost thermostat.
To explore more coupons and offers, visit Endless Energy