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Blog

  • Unavoidable Increase: Choose to Save
    Saturday, January 3rd, 2015

    Unavoidable Increase: Choose to Save

    To get straight to the point, energy rates are projected to skyrocket this winter. World Energy compiled the top five reasons that energy rates will hit a sharp incline...
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  • The Hidden Energy Stealer: Where to Look
    Thursday, January 1st, 2015

    The Hidden Energy Stealer: Where to Look

    It seems like the easiest way to get things done these days is to make a list. We have lists for grocery shopping, lists for a busy day of...
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  • These Multifamily Homes Upgrade to Efficiency: So Can You
    Monday, November 24th, 2014

    These Multifamily Homes Upgrade to Efficiency: So Can You

    Living in a multifamily building means sharing your energy resources. Recent research reports new ways to transform energy use in these multifamily homes. All buildings need insulation and air...
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  • Our Energy Engineer on Heating Systems and Insulation
    Wednesday, November 5th, 2014

    Our Energy Engineer on Heating Systems and Insulation

    Recently, one of our customers sent us this note: “When you were speaking yesterday, it rang a bell with something that I had read about online. Radiantec recommends a...
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  • Recent Report: Clean Energy Boosts Employment
    Friday, October 31st, 2014

    Recent Report: Clean Energy Boosts Employment

    Earlier this fall, the Massachusetts Clean Energy Center released its annual report. The state as a whole put a lot of effort into improving our energy savings throughout the...
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  • Utilities Please: A New Report with a New Perspective
    Wednesday, October 22nd, 2014

    Utilities Please: A New Report with a New Perspective

    When we think about our ideal home, we often overlook the basics. We want a wraparound porch, or a master bath, or a walk-in closet, but what about the...
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Accreditation and Awards

Client Testimonials

Our customers speak for themselves — read some of our recent reviews!

  • Cannot recommend Dolphin enough. I had contacted 5 insulation contractors to come out and look at my 100+ yr old home with no insulation. The walls are original plaster and lathe and hollow. Only Dolphin came out to visit and gave a comprehensive review and quote. We first had only... read moreCannot recommend Dolphin enough. I had contacted 5 insulation contractors to come out and look at my 100+ yr old home with no insulation. The walls are original plaster and lathe and hollow. Only Dolphin came out to visit and gave a comprehensive review and quote. We first had only the basement rim joist insulated. 2 yrs later we decided to take on the full job of insulating all of the walls. Dolphin came out again and revised the quote and looked over the job. The crew arrived in October and insulated the walls over 3 days. The effects were enormous once winter hit. Before insulating we had a hard time keeping the house above 60 as on single digit days we would use space heaters to supplement the heat and could barely break 58 degrees in the first flow. This year we had 2 weeks of single digit cold and the heat stayed above 70 the entire time! The crew is professional, outgoing and helpful. Everyone I dealt with was professional and honest. read less

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    Eric Garfield Avatar
    Eric Garfield
    5/03/2018

  • 5 star ratingWe had Dolphin Insulation install insulation in our attic and basement. Their team was professional, on time, courteous, and kept us updated along the way. They also noticed other issues that needed our attention and guided us in a decision for what needed to be done. When the project was... read moreWe had Dolphin Insulation install insulation in our attic and basement. Their team was professional, on time, courteous, and kept us updated along the way. They also noticed other issues that needed our attention and guided us in a decision for what needed to be done. When the project was completed, they did a thorough cleaning of everything. They left the place spotless. Overall, we are extremely happy with the job they did. I would recommend them! Thanks for the great work. read less

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    Lindsay B Avatar
    Lindsay B
    3/31/2018

  • I always dread the process of getting work done on the house; non-returned calls, not showing up when promised and then not calling to let you know, leaving your job in the middle to start another one, etc. etc. Well, Dolphin was the opposite, a very good experience. Getting three... read moreI always dread the process of getting work done on the house; non-returned calls, not showing up when promised and then not calling to let you know, leaving your job in the middle to start another one, etc. etc. Well, Dolphin was the opposite, a very good experience. Getting three quotes, Dolphin's Chris was the most professional, seemed to know what he was talking about the most, and gave us a comfortable feeling. Add in that their pricing was equal to or better than the others, depending on which part of the house, and it was a done deal. We had the attic completely re-insulated, throwing out all the old fiberglass, air sealing everything and new 18" of cellulose, as the first stage. Dolphin showed up when promised, took less time than I expected, and did what seems to me to be an excellent job, worked cleanly, and cleaned up thoroughly every night and end of job. I will use them for the next insulation project. read less

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    Bruce Hauben Avatar
    Bruce Hauben
    4/15/2018

  • Dolphin insulation answered the phone when I called and Karen set up an appointment for their very knowledgeable building scientist to come out and look at my home. He showed up at the time we scheduled, asked all the right questions and gave me a state of the art... read moreDolphin insulation answered the phone when I called and Karen set up an appointment for their very knowledgeable building scientist to come out and look at my home. He showed up at the time we scheduled, asked all the right questions and gave me a state of the art solution to a problem I could never seem to fix. I thought it was just an older home and it would always be leaky. It was about double the cost I expected to spend but when he explained all the benefits and ROI it was a no brainer. We scheduled a few days for the install and the crew was friendly, protective of my home, and worked diligently. They cleaned up after and everything looked great. It’s been a year now and compared to last year I have saved $4,500 and according to my calculations this job will pay for itself in 4 years saving around $400/month. The house is warmer, quieter, and the heat is turning on much less giving our hvac a break. Couldn’t be happier. Thanks for a great job! read less

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    Jamie Madison Avatar
    Jamie Madison
    1/21/2019

  • The team from Dolphin insulation (Dave, Troy, and Tyler) were professional , efficient, courteous, and fun to be around. They did their work in a timely fashion while answering any questions or concerns I had ( I had more than a few). Based on my experience I would recommend this... read moreThe team from Dolphin insulation (Dave, Troy, and Tyler) were professional , efficient, courteous, and fun to be around. They did their work in a timely fashion while answering any questions or concerns I had ( I had more than a few). Based on my experience I would recommend this company most highly and without any reservations. read less

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    David Seropian Avatar
    David Seropian
    4/27/2018

  • Dolphin did a great job! No more ice dams.

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    Neal Dowling Avatar
    Neal Dowling
    7/10/2018

  • From first call to project completion, Dolphin Insulation was a pleasure to work with. We are building a fairly complex custom home that presented some challenges in insulating and air-sealing. The crew at Dolphin dedicated to helping us problem solve and arrive at the best finished product. As a general... read moreFrom first call to project completion, Dolphin Insulation was a pleasure to work with. We are building a fairly complex custom home that presented some challenges in insulating and air-sealing. The crew at Dolphin dedicated to helping us problem solve and arrive at the best finished product. As a general contractor, I rely on my trade partners to execute our projects correctly, on time and on budget. Dolphin's flexibility and expertise was a great help on all fronts. I plan to work with them again on future projects. read less

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    Ian Harper Avatar
    Ian Harper
    5/24/2018

  • Thank you and your crew for not only insulating our home, but doing it in such a professional and considerate way! By the time Dolphin arrived on the day after Labor Day, we were shell shocked from contractors and having strangers running around our house turned upside down to accommodate... read moreThank you and your crew for not only insulating our home, but doing it in such a professional and considerate way! By the time Dolphin arrived on the day after Labor Day, we were shell shocked from contractors and having strangers running around our house turned upside down to accommodate the work that needed to be done. We were completely impressed with David, the site foreman. He was affable and easy to talk to. He kept us up to date on all activity and really eased our concerns about every aspect of the work. His crew was just outstanding and he managed them with respect and precision. I have witnessed work crews before, but yours was a cut above! Not only were they respectful of us and our home, but they exhibited respect for each other rarely seen in blue collar circles. They were in constant motion performing their specific tasks like a well oiled machine! We just couldn’t have been more impressed and pleased. An unexpected bonus was that there is less outside noise penetrating into the house. We have an active street and our neighbors are busy from morning to nightfall and beyond. I used to be able to hear conversations on the street, but after your crew was done, our house is much quieter. And the icing on the cake was when the Mass Save inspector came out to inspect your work. I followed him around and he was also impressed with the work performed and stated that our contractor "had done an excellent job!” He asked who did the work and I told him, “Dolphin". He said that “they always do excellent work!” Boy, was I glad to hear that! Dolphin Insulation exceeded our expectations and left us with a warm feeling and a warmer (and cooler) home! We just wanted to say, “Thank you, from the bottom of our hearts!” read less

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    Michael Morel Avatar
    Michael Morel
    11/26/2017

  • We hired Dolphin Insulation based on recommendations from my neighbors. They were very professional, punctual, and responsive, from beginning to end. We had insulation in our attic and our garage ceiling and we already starting to feel the difference. They were also very good about cleaning up the area after... read moreWe hired Dolphin Insulation based on recommendations from my neighbors. They were very professional, punctual, and responsive, from beginning to end. We had insulation in our attic and our garage ceiling and we already starting to feel the difference. They were also very good about cleaning up the area after themselves, which not all contractors do! read less

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    Susana C Avatar
    Susana C
    8/11/2018

  • I can't say enough good things about Chris, Amanda, and all the great people at Dolphin Insulation. I came to know them while managing a home rebuild project for the Schultz Family in Stow. The project was a donation based effort to replace a home that was overcome by toxic... read moreI can't say enough good things about Chris, Amanda, and all the great people at Dolphin Insulation. I came to know them while managing a home rebuild project for the Schultz Family in Stow. The project was a donation based effort to replace a home that was overcome by toxic mold while the family was attending to a devastating health situation involving their young son. The house could not be salvaged and had to be torn down. Chris and Amanda stepped up immediately upon hearing of the situation and (working with their vendor partners) offered to donate all the labor and materials required to insulate the new home. It was especially important to the Alphin's that the house be built in a way that the mold situation could never happen again. In addition to the generous offer, Chris brought a level of insulation expertise that is unmatched in my 35 years in construction. In fact, Chris knew so much about his industry and the cutting edge materials available, I called on a trusted building envelope consultant, Neil Rouleau of Building Restoration Services, to help me sort it all out. Neil confirmed that this was a state of the art and extremely generous offer. The praise doesn't end there. In my years in the industry, I've come across a lot of people who talk a good game but fail in the execution. Nothing could be further from the truth here. The installation crews were experienced, hardworking, and great to work with. Given the donated nature of the project we had times when the work flow had to be rearranged. They reacted like true professionals and did whatever it took to get the job done. And they left the jobsite cleaner than when they arrived! Again, I can't say enough about how much I enjoyed working with Dolphin Insulation, and what quality people they are to do what they did. Look forward to working with them again. read less

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    Dan James Avatar
    Dan James
    General Superintendent, Erland Construction, Inc.
    9/09/2018
Read More Testimonials

Blog & News

  • Cellulose Provides Quiet Relaxation
    February 1, 2020
    Cellulose Provides Quiet Relaxation
    Many noises outside, and between rooms of your home can be disrupting the peace inside of your house. This...
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  • Sleep in Heavenly Peace MA-Middlesex Co Chapter
    January 28, 2020
    Sleep in Heavenly Peace MA-Middlesex Co Chapter
    Sleeping in a cozy bed at night is something that people often take for granted. Many families are in...
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  • Why We Use Cellulose
    January 21, 2020
    Why We Use Cellulose
    Here at Dolphin Insulation, we use cellulose, instead of foam, to insulate houses. Cellulose is clean, affordable, safe, efficient,...
    Read More
Are you ready for the comfortable and energy efficient home you've always dreamed of? 978-266-1122
410 Great Road, A-6
Littleton, MA 01460

978-266-1122
800-987-8815
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