Littleton, MA Home Insulation Installation Company, Insulation Contractor

House feeling drafty? Want to save energy?

Let the experts at Dolphin Insulation create the perfect all-season indoor climate, no matter the weather outside!

Serving our customers is infused into everything we do. Homeowners, builders, contractors, and our very own employees solidify our foundation. Our company is built on quality and fortified with genuine interaction. It is designed to withstand the elements and change with the times. High quality isn’t one of the options we offer, it’s the only option we offer. It’s etched into our products and coated onto our services. Most importantly, it’s the only type of interaction we are capable of having with members of our community. You supply us with your challenges and we’ll lay out quality solutions. It’s that simple.

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.

Insulation & Energy Efficiency

Serving homeowners and building owners is what we do.

Insulation acts as a barrier to heat loss and heat gain, mainly in roofs and walls. Insulation is the most practical and cost-effective way to make a house more energy efficient, keeping it cooler in summer and warmer in winter and saving up to 80% in heating and cooling losses. If your property isn’t energy efficient, the fact is you’re adding to your monthly bills. Our homes should be our refuge. They should be comfortable, safe, healthy, and finally, affordable.

View Before & After of an Attic Insulation Project

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 more read less

Eric Garfield
5/03/2018
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 more read less

Dan James
General Superintendent, Erland Construction, Inc.
9/09/2018
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 more read less

Michael Morel
11/26/2017
I got to know Dolphin Insulation through MassSave years ago. Their team installed excellent weather stripping on doors and sealed attic drop-down stairs. I was so impressed I called them for a home energy audit. I found out they have more expertise including energy efficient remodeling, attic insulation enhancements, and... read more read less

Kevin Hausmann
5/27/2017
Dolphin did a great job! No more ice dams.

Neal Dowling
7/10/2018
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 more read less

Susana C
8/11/2018
We 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 more read less

Lindsay B
3/31/2018
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 more read less

David Seropian
4/27/2018
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 more read less

Jamie Madison
1/21/2019
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 more read less

Bruce Hauben
4/15/2018

House feeling drafty? Want to save energy?

Let the experts at Dolphin Insulation create the perfect all-season indoor climate, no matter the weather outside!

Ice Dams

Heat Loss

Indoor Air Quality

Sound

The Benefits of Cellulose Insulation

Why Dolphin Insulation prefers to use Cellulose

Clean & Sanitizing

Efficient & Affordable

Safe

Sound Proofing

Insulation & Energy Efficiency

Serving homeowners and building owners is what we do.

View Before & After of an Attic Insulation Project

Watch how cellulose handles fires compared to spray foam and fiberglass!

Accreditation and Awards

Serving the Boston Metrowest Area since 2003, Dolphin Insulation is family-owned & operated and is a company you can trust.

Client Testimonials

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

Blog & News

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