Achieve energy-efficiency, cost savings and comfort all year round

At Dolphin Insulation, our primary focus is helping homeowners create energy-efficient and more comfortable environments. We offer only high-quality products and services and install solutions using the latest technology and materials that are safe for the home and the environment.

We have completely changed the traditional approach to insulating homes with our very unique process and materials. Ultimately, we create for homeowners the perfect all-season indoor climate for them, no matter how hot, cold or even noisy it is outside.

Attention commercial building owners:

Let us help you save up to 80% of the cost of insulating using Eversource incentives.

Get more information on our commercial insulation experience and Contact us for a free assessment of your building’s current insulation and energy-saving potential.

A parked truck positioned in front of a building

Need a HERS (Home Energy Rating System) rater for your addition, renovation or new construction?

Meet Tom Ducharme, a Dolphin Insulation Specialist and HERS rater. He is certified to perform in-depth energy performance assessments on newly constructed and renovated homes. The HERS Index is the industry standard by which a home’s energy efficiency is measured as well as the nationally recognized system for inspecting and calculating a home’s energy performance.

Cutting Your Energy Bills in Half with a Hot Roof Installation

Optimizing Insulation-The Thicker Your Walls, the Better

Read About Our Services General Contracting Contact Us Letter from Our Founder

Ice Dams

Ice dams are common here in New England and as pretty as they can be to look at, they can wreak havoc on buildings and costs the owners a lot of money in repairs.

Learn More About Ice Dams

Heat Loss

Did you know properly insulated homes can stay warm for days on their own with just heat from the sun and appliances when the heat is no longer escaping?

Learn More About Comfort Drafts

Indoor Air Quality

Mold is a tenacious substance that can take root in the presence of moisture. Mold can grow on many substances, including sheetrock and fiberglass insulation.

Learn More About Air Quality

Sound

Homeowners who choose cellulose insulation get the added value of superior sound control as it is widely used to help limit exterior & interior noise.

Learn More About Sound Control

Hot & Humid Homes

Your air conditioning works hard to make the inside of your home more comfortable, but it really doesn’t have to!

Learn More About Heat/Humidity

General Contracting

Are you looking to install new windows, replace your roof, add a deck, or remodel your kitchen or bath? We can help with these and a variety of other home remodeling and improvement projects.

Learn More About General Contracting

The Benefits of Cellulose Insulation

Why Dolphin Insulation prefers to use Cellulose

Clean & Sanitizing

Made of recycled newspaper and other materials that are safe, natural and biodegradable and cannot grow mold.

Does not contain ammonium sulfate.

No toxic VOC emissions

Efficient & Affordable

Cellulose has the best cost to effectiveness ratio of all insulation materials.

It has an R Value of 3.7 per inch and retains 100% of its insulating value in extreme conditions unlike other insulation materials.

Safe

Does not ignite and delays the spread of fire.

Sound Proofing

Excellent for deadening outside noises like trash trucks, sirens, etc. as well as interior noises from room to room. Cellulose is capable of absorbing high frequency sounds of 200 – 2,000 hertz.

Does Cellulose Manage Moisture?

The answer is yes!

We love cellulose because it is hygroscopic and can manage moisture unlike most other insulating materials.

Read about a recent customer story from Acton, MA and how we ensure our applications will last the life of the home.

Accreditation and Awards

Client Testimonials

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

Dolphin Insulation replaced the insulation in our 2nd floor/attic. We are very pleased with the result. Ryan, the on-site project foreman took the time to explain the work as it progressed so that our questions were answered daily. He and his team were friendly, knowledgeable, and careful with our home. We would highly recommend Dolphin if you are serious about insulating your home.
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John Hickey
2/16/2022
I hired Dolphin to make my poorly insulated older home more energy efficient. I am so glad I did! They did an excellent job! Both technicians, Chris and Dustin, performed all the work and did an impressive job! They arrived on time, super professional, knowledgeable, courteous and they took time to ensure my home was not a mess! I couldn’t be happier! Thank you Dolphin, Chris and Dustin!
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George Pappas
5/10/2021
We used Dolphin Insulation for multiple weatherization items around our house including air sealing, blowing cellulose insulation, etc. From the first contact to schedule the job, to their professionalism, to the quality of their work, Dolphin as a whole is a fantastic group. Highly recommended.
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Eric Robert
3/22/2021
So many wonderful things to say about this company! From the first time I called to see about scheduling I was blown away with the helpfulness of the individual I spoke with. She was anticipated my needs, spoken knowledgeably about our job and was even able to get us onto the schedule in the timeframe that worked for us! Once the crews showed up to do the job the service got even better! They were professional, checked in to make sure we were updated on the project/answered all our questions, and very clean in the job. They finished when they said they would and actually provided us a revised quote once they discovered part of our house was insulated from a precious addition. Would recommend this company time and time again- you won’t be sorry!
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Katelin Jeray
5/22/2021
Chris and his team were great. Did fast, efficient work, cleaned up after themselves and were unobtrusive to a family working from home. A great experience!
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David Wrangham
8/29/2021
We thought Dolphin Insulation was great! We had little to no insulation in a home we recently bought. Losing heat and central air running constant was an issue that they corrected for us. We are seeing a huge difference this week with the central AC. Thank you again!!
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Kelly Monahan
6/22/2021
I was and still am very impressed and happy about the insulation installed in my attic. I can feel the warm air staying in and seeing the snow on roof not melting away so fast as the attic is well insulated. I would highly recommend Dolphin insulation to everybody.
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Glen DeRosa
1/22/2021