About us
Business highlights
14 years of trusted experience
Services we offer
Services we don't offer
Amenities
Free Estimates
YesWarranties
YesSenior Discount
5%
Accepted payment methods
Photos of past projects
Reviews
4.531 Reviews
Showing 1-25 of 31 reviews
Elizabeth B.
06/2021
electrician, heating & air conditioning/hvac
+ 0 moreWe had previously worked with Energy Monster on a Mass Save audit and then adding insulation to our house. This time, we had the guys from Energy Monster back again to perform an electrical upgrade on our house (100 to 200 amps) and then install five ductless mini-splits for more efficient heating/cooling than our ancient terrible radiators. Despite dealing with a lot of obstacles -- a heat delay due to several 90 degree days and then tons of rain that prevented them from doing the outside work on the days they wanted -- the whole team was professional and efficient and made the most of the time when the weather finally cooperated! (Plus, my dog loved the whole crew and the loved him back.) It has been such a pleasure to work with Energy Monster as we turn our house into the energy efficient home of our dreams. Thank you!! We can't wait for Energy Monster to come back later this summer to install solar panels next!
Description of Work: Electrical upgrade to 200 amps + installation of 5 ductless mini-splits!
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$25,863
Elizabeth B.
04/2021
insulation, energy audit
+ 0 moreLove the whole team at Energy Monster! Jim did a very thorough Mass Save Audit for us and helped us figure out why our house was so cold in the winter (zero insulation in our 1870s walls!) and helped us set up having Pat and his insulation crew come out to make things right. Everyone was professional, efficient, and kind. The insulation crew finished in half the time I thought they needed, wrapping up early each day and cleaning everything up so there was almost no evidence they had been there! And our house feels warmer and quieter already -- amazing! Also a special thank you to Tawny and Courtney at the office -- they very quickly resent the knob & tube form that my electrician needed to sign when I couldn't find the original PDF in my email. They were professional and helpful when I was panicking. Thank you! I really love working with this company, and I look forward to having them come back to install mini-splits and solar panels! Thanks, Energy Monster.
Description of Work: Insulation installed in the walls and attic!
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$1,473.47
Heiko M.
12/2018
solar panels
+ -1 moreI evaluated quotes from three PV companies before I placed an order for a 24-panel system. Here are three reasons why I went with Energy Monster: The publicly traded company that I favored first wanted me to sign away my consumer rights, (1) with no such provisions in Energy Monster's contract, (2) a good price and (3) Dan G., the very knowledgeable and dedicated sales manager / project manager / system engineer as the main contact, I felt safe placing my order with Energy Monster. During installation a few obstacles had to be overcome, all of which were related to the town's permitting process and required licenses. All that got resolved without incident eventually. The installation crew – Chris B. (Master Electrician) and Brandon T. – did an outstanding job installing the solar system. It passed all inspections with flying colors. There were no start-up problems. In summary: Energy Monster's pricing was good and they selected first tier 1 solar panels and inverters. Work dedication, workmanship, project management and technical expertise were outstanding. I like that no electric cables are visible. Energy Monster used a roof penetrating feedthrough, which is located underneath the panels. It was tested thoroughly during the torrential rainstorms in the months following the installation. Not a single drop of water was leaking through. Since August 1, 2018 my PV system produces energy. During the 5 months till the end of the year, I harvested 2,936 kWh. I live in Milford, NH. I have 24 LG 320Watt NeON2 panels with Enphase micro inverters. I am very happy with the solar system.
Description of Work: Installation of Solar System
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
Rebecca A.
07/2018
heating & air conditioning/hvac, energy audit
+ 0 moreThe owner will do NOTHING to fix our non working air conditioner. As soon as the temp goes over 90 degrees—it stops working. When my husband was trying to have a conversation with the owner today, he hung up on him. Unbelievable!! Boy, did we get screwed! We paid this company almost $20,000 less than a year ago to install a new system. Your customers need to beware of Energy Monster being absolute CROOKS and DO NOT USE this company! Now we have to use a portable aircondtioner in our bedroom to stay barely cool when temp rises over 90.
Description of Work: Repair a non working air conditioner they installed less than a year ago
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
$20,000
Daniel S.
03/2018
energy audit
+ -1 moreWent very well - very thorough, responsive, explained everything
Description of Work: Energy audit
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
James H.
02/2018
heating & air conditioning/hvac, energy audit
+ 0 moreEverything went smoothly. Sales guy helped me with rebates. The techs were very nice and really knew what they doing.
Description of Work: I had Mitsubishi Mini Splits installed.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
BRIAN R.
02/2018
heating & air conditioning/hvac, energy audit
+ 0 moreThe job went smoothly and everyone we dealt with was professional and courteous.
Description of Work: We had Energy Monster out to install some ductless mini-splits.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$4,800
cody H.
01/2018
electrician, insulation, energy audit
+ 1 moreThe auditor that came out made the whole process so easy and understandable. He changed my light bulbs and a few other little things but i have already seen a huge difference on my electric bill just from the lighting. I learned a lot about my house and how it works as a system so that was cool too! I had insulation work done a few weeks after my audit and it has made my home and bills so much more comfortable and affordable. THE BEST PART IS I PAID A FRACTION OF WHAT THE JOB ACTUALLY COST for the insulation and NOTHING for the lights. I can't believe i didn't do this sooner. If you are looking for a professional, Courteous, and Reliable contractor then look no further!
Description of Work: Energy efficient measures, Insulation
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$350
Response from Energy Monster
Kate L.
01/2018
insulation, energy audit
+ 0 moreMy experience was wonderful. The staff is extremely knowledgeable and after a thorough assessment, they were able to insulate my attic as well as create a dome over my attic entrance for the drafts. It has made all the difference! On top of that, they were able to recommend several other options and items that are covered through the Mass Save program to improve my energy savings. They will assist in any way they can and make sure you understand what's happening every step of the way.
Description of Work: My apartment was very cold in the winter due to a drafty and poorly insulated attic. i have electric heat, so my bills were through the roof.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
Susan K.
01/2018
electrician, heating & air conditioning/hvac, insulation, solar panels, energy audit
+ 3 moreEnergy audit went great. A man named nick came out and was very knowledgeable. Decided to go further and get insulation with energy monster. So far an overall great experience with this company
Description of Work: Energy audit
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
Response from Energy Monster
Debra D.
12/2017
insulation, energy audit
+ 0 moreEnergy monster is the best company I have dealt with in a long time, shamus and his crew were great and very polite, professional, and the cleaned and vacuumed up everything before they left,. It was like I had no work done after they left they were that great. Even the girl on the phone that set up everything was very pleasant,I would hire and recommend them very highly to everyone. Thank you for the best experience,
Description of Work: Insulation
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
Thomas M.
07/2016
energy audit
+ -1 moreThe service was free. The quality was good. Punctuality was pretty good. They were basically checking up on things. They were a little bit unresponsive when we were in the house until we knew exactly what they were doing and checking up on. It wasn't a major issue.
Description of Work: They had had energy audit a couple of years ago. All they did was basically check that everything had been installed properly. They also put in a few new lights down in the basement.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
Diane B.
12/2015
insulation
+ -1 moreThe workers were on time, polite, and dedicated to their job, but I wish I would have supervised the job. I was not told to wear a mask, nor to leave the house during the job. Cellulose dust got everywhere as they did not block off the area they were working in from the rest of the house. I actually experienced respiratory challenges for a several days after and had to call a professional cleaner to come in with HEPA gear to deep clean the house.
Description of Work: provided service to better insulate my home
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$400
meghan S.
10/2015
insulation
+ -1 moreProvider arrived and performed an energy audit of the house and provided free "green" light bulbs at no cost.
Description of Work: Energy Audit of my home. Provided free bulbs for the entire house. Great Experience.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
Diane D.
10/2015
insulation
+ -1 moreWe never heard back with a report from Miguel or anyone from Energy Monster & several weeks passed before we finally checked back in to see what was up? We needed that report to file with National Grid so we could submit an application to MassSave to see if we could qualify for a loan to have a new furnace/boiler & indirect water heater system installed. Our current system was running below standard & we were having yearly problems with it & zones freezing up with no heat. We learned (then) that Miguel left the company & never turned in OUR report OR any of the photos he took throughout our home & no one at Energy Monster had the courtesy to call us to let us know any of this! We let them know how upset & very disappointed we were with their lack of follow-up or professionalism. They handed our case over to their supervisor, Julie Pennett who assured us she would be out to make things right. Julie did finally come out & spent several hours (re-doing) the entire inspection...taking more pictures, measurements, etc. etc. After all of that...she assured us ...we would receive a (thorough report & RECOMMENDATIONS most importantly) as to what we should take care to improve our current energy problems & make sure we received this report to submit to National Grid for our MassSave application. Julie also asked if we'd like (their new team of furnace/water heater installers) to come out & assess our current system & give us a quote. These 2 guys came out & were very courteous & seemed to have a reasonable knowledge & gave a reasonable quote for a new heating system (which followed in the mail). However, we received (just the bare necessity energy report) from Julie to submit so we could send in our application to apply for our MassSave loan. We called & asked when we'd receive the {full report of recommendations} and NEVER received that report after we were assured a 2nd time that we would be receiving it in the mail. Energy Monster just seemed to have some (internal management problems) and were JUST getting a (new) HVAC team on board & in place. They just didn't seem to have all their ducks in a row there & there was a definite break down in communication along the way. In the end, we were not impressed with their service & would (not) give them a great recommendation or high rating.
Description of Work: We got off to a good start with a tech showing up at our home to do a {FREE} home energy assessment report for us (sponsored by National Grid) to submit an application for a MassSave energy loan to have a NEW furnace/boiler & indirect water heater installed. Technician Miguel came out & did a very thorough assessment of all our windows, crawl spaces, attic & basement, lighting, insulation, & heating system. He was here for almost 3 hours & took tons of photos with his iPhone as reference for what he found & to include in his report. He promised a full report to follow soon & left us with (replacement) new energy efficient light bulbs, ceiling pot lights & 4 thermostats for all 4 of our heating zone rooms.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| professionalism | |
| responsiveness | |
| punctuality |
Josh L.
02/2014
energy audit
+ -1 moreOur auditor was very enthusiastic about helping us save on our energy costs. He was patient with my husband we discussed our unhappiness with our heating bill and the drafts in our home. We also got some some free lightbulbs and a showerhead replacement! We didn't feel any pressure to get any work done but after talking to our auditor we moved forward with getting some air sealing and insulation work done. The crew was great - very respectful and timely. I was concerned about the mess that might be left afterwards but the guys cleaned up great!
Description of Work: First we received a home energy assessment which was completely free! We ended up getting airsealing and insulation work done as well.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$600
Lauren A.
02/2014
energy audit
+ -1 moreAMAZING! Our auditor was prompt and courteous. My husband and I felt extremely well-taken care of. In addition to his professionalism about our home insulation and energy efficiency, we also received tips, strategies and suggestions on how to help heat our home efficiently and effectively, beyond just the work that Energy Monster can perform on my house. The auditor was incredibly knowledgeable - clearly an expert. We also appreciated his interest in the environmentally-friendly aspect of the business, as well as saving us money on our utilities bill. A free home audit, knowledgeable and personable staff - I HIGHLY recommend this company!!!!
Description of Work: The Energy Monster representative performed a thorough home energy assessment, and upon the outcome of the assessment, they installed the needed home energy efficiency project (insulation). They also installed complimentary energy-efficient light bulbs, and gave us a new, programmable thermostat, again complimentary.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$713.45
Robert R.
11/2013
energy audit, insulation
+ 0 moreI had Energy Monster complete an energy efficiency evaluation at my house through the Mass Save program. The two evaluators were on time and went through my house conducting their evaluation. They also asked if I had any areas that I knew needed improvement, (my attic insulation). They were thorough in explaining the evaluation and what areas could be improved upon. They didn't pressure me to complete any work nor did they pressure me to use their company. I ended up using Energy Monster to add insulation under the Mass Save program, it only cost $330 by doing so. The crew was on time, professional, and explained the work they would be doing. They were there for about five hours and cleaned up after themselves. I would use them again and have recommended them twice to friends looking to have insulation added.
Description of Work: Dense packed insulation in attic in gable roof portion, and added additional insulation on attic floor. Air sealed basement and added insulation on rim joist.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$330
John N.
08/2013
energy audit, insulation
+ 0 moreExcellent service. Professional, courteous, high quality. Thoroughly impressed with the energy audit and the follow up work that was done. Good value.
Description of Work: Attic insulation, vented bathroom fans, etc.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$556
Christie B.
05/2013
energy audit, insulation
+ 0 moreI thought my home energy audit with energy monster went great. Their home energy advisor was ?Jim?. He showed up on time, was informative and helped me learn a lot about how they can help my home be more energy efficient. I agreed to have the recommended measures done and signed the contract that day. I received a call to schedule the work within a week by a nice lady who was very pleasant. On the day of the work everyone was very nice, clean and professional and the job went smoothly which is rare from what I?ve read about the trade which is why I chose Energy Monster in the first place with their great reviews. The guys seemed very respectful and appeared to care about doing a good job. The manager (I forget his name ? sorry) even stopped by to check on things during the work and introduced himself. My energy bills are already noticeably lower! I would highly recommend Energy Monster and will.
Description of Work: Energy Monster performed a home energy assessment and followed through with the recommended work that is in the MassSave program.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
Daniel N.
03/2013
energy audit
+ -1 moreNever heard back from the company. Also note that the company address points to a household address. Not that there is a problem with anyone working from their home, but note you can't just swing by to talk to these guys.
Description of Work: I contacted the company for more information about their services (via email on their website), but never heard back. Lost a customer simply by not responding to an email...
| Rating Category | Rating out of 5 |
|---|---|
| professionalism | |
| responsiveness |
Response from Energy Monster
Patricia D.
02/2013
energy audit
+ -1 moreno work other than the audit was done
Description of Work: the condo associate did not agree to go ahead with the recommendations.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
Ana A.
10/2012
energy audit, insulation
+ 0 moreAll in all I am thrilled with my experience with Energy Monster. I was able to receive 4,000.00 of work done to my home for 676.00! Air Sealing 924.00, Light Bulbs 400.00, Insulation 2,676.00. My out of pocket expense after rebates etc. was 676.00. I love these guys!!!
Description of Work: A few weeks ago my neighbor recently had Energy Monster visit their home and was bragging about their services. After discussing Energy Monster further with him and visiting their website, I decided to request my free home energy audit as well. I received a call from them within 24 hours and was quite pleased with their upbeat level of customer service. The call lasted 2-3 minutes. They inquired about my style of home, type of heating system, asked if there are any major areas of concern etc. They verified my contact info that I had given them through their website as well as my Nstar account # and confirmed a time for my home energy assessment. On the day of my appointment they arrived on time and set my expectations for what they were going to do. They accessed my basement and spent about 5-10 minutes there. They accessed my attic and spent 15-20 minutes up there. They used a camera to look into my walls to check on the insulation in them. That was very interesting. That took another 15 minutes or so. They then walked the outside taking exact measurements which took no more than 5 minutes. The energy auditor “Eric” then took a few minutes to enter the information into his laptop and printed up a report. We discussed his findings and how the work would be done. The rebates were exactly what my neighbor had shared with me. The rebates are instant and the prices are already set by Nstar so that there’s no negotiating. As a customer of Nstar and National Grid I was already paying into an Energy Efficiency Fund which is where the instant rebates, free audit and free light bulbs came from. This is part of the mass saves program. I felt bad for Eric. Yes we got free energy efficient light bulbs which are fantastic but he had to screw in 50+ bulbs throughout my home which took him approximately an hour. I let him know that he could just leave them and I could install them later but he said that he has to do it as it is what the utility companies want him to do and that he doesn’t mind at all. Eric was very pleasant and thoughtful. I also decided to move forward with the insulation work on my attic which I just had done yesterday. Energy Monster again arrived on time 8:00am. They introduced themselves and explained what they were going to do. “Steve” was the individual in charge. He again was very knowledgeable and courteous. The guys worked steadily and were very professional and polite. The job took one day and was complete by 3:00pm. They did a great job cleaning up and reviewing the paperwork with me before leaving.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$675
Stephen T.
09/2012
energy audit, insulation
+ 0 moreOverall, I was nervous about them doing the work about an hour into the job. I would have reservations using them again.
Description of Work: I used energy monster because they were listed on the MASS Save list of approved contractors. They came in, looked around, told me what they think I should do and how much it would cost. Most of the work is covered by MASS Save, so it was very reasonable. The person that came to do the energy audit was novice at best. He really didn't give me the information I was looking for in an audit. I chose to use energy monster to do the blower door test (which was free) and to do some air sealant work in the attic and basement. They came back out a couple of weeks later (the agreed to date) and I was not very impressed. Their tools were not working correctly, their manager came out and he was not very customer service focused.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| professionalism | |
| responsiveness | |
| punctuality |
Dawn S.
03/2012
energy audit, insulation
+ 0 moreEnergy Monster guys arrived on time. Talked to me about the problem. Did a thorough inspection of the roof and attic area. Explained what they found and what the needed repairs would be. The guys were timely, courteous, professional, dressed well. The service truck was professional looking, with name of Energy Monster it. I felt safe having them in my home.
Description of Work: Energy Monster came to my home to do an energy conservation audit. There were ice dams on roof. The cost of the service before rebates was $2850 I paid $850. They airsealed and added additional insulation.
| Rating Category | Rating out of 5 |
|---|---|
| quality | |
| value | |
| professionalism | |
| responsiveness | |
| punctuality |
Yes, I recommend this pro
$850
- 1(current)
- 2
Contact information
125 Blackstone River Rd, Worcester, MA 01607
http://www.myenergymonster.com/maService hours
Monday:
8:00 AM - 6:00 PMTuesday:
8:00 AM - 6:00 PMWednesday:
8:00 AM - 6:00 PMThursday:
8:00 AM - 6:00 PMFriday:
8:00 AM - 6:00 PMLicensing
Bonded
Insured
No License Required for Trade
Trade License Number
CSSL-102765
Trade License Locale
Massachusetts
Trade License Authority
DOE
Trade License Expiration
07/20/2018
Eco-friendly Accreditations
LEED Accredited Professional
No
Energy Star Partner
Yes
EPA Lead-Safe Certified
Yes
Use Green Products or Work Practices
Yes
State Contractor License Requirements
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.
*Contact business to see additional licenses.
Service Categories
Energy Efficiency Auditing,
Insulation,
Heating and Air Conditioning,
Electrical,
Solar Panels,
House Cleaning
FAQ
Energy Monster is currently rated 4.5 overall out of 5.
Monday: 8:00 AM - 6:00 PM
Tuesday: 8:00 AM - 6:00 PM
Wednesday: 8:00 AM - 6:00 PM
Thursday: 8:00 AM - 6:00 PM
Friday: 8:00 AM - 6:00 PM
Energy Monster accepts the following forms of payment: American Express,Check,Discover,MasterCard,Visa
Yes, Energy Monster offers free project estimates.
Yes, Energy Monster offers eco-friendly accreditations.
Yes, Energy Monster offers a 5% senior discount.
No, Energy Monster does not offer emergency services.
Yes, Energy Monster offers warranties.
Energy Monster offers the following services: No-cost Mass Save home energy assessments, home insulation, commercial insulation, spray foam, air sealing, duct cleaning and sealing, radiant barrier, solar powered rood ventilation, window tinting, weather stripping & door sweeps.
Ask for details.
Contact information
125 Blackstone River Rd, Worcester, MA 01607
http://www.myenergymonster.com/maService hours
Monday:
8:00 AM - 6:00 PMTuesday:
8:00 AM - 6:00 PMWednesday:
8:00 AM - 6:00 PMThursday:
8:00 AM - 6:00 PMFriday:
8:00 AM - 6:00 PM