The Best Insulation Contractors in Dartmouth, MA

Compare the highest-rated insulation professionals in Dartmouth, Massachusetts. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Energy Monster

4.8
(250 reviews)
Verified

A leading Mass Save partner and premier insulation contractor for Southern Massachusetts and Rhode Island. They specialize in comprehensive home performance upgrades, including advanced air sealing and dense-pack cellulose insulation. Their strength lies in their deep expertise in energy audits and maximizing homeowner rebates and financing through the Mass Save program.

(Primarily serves from a New Bedford location, but services Dartmouth extensively)

Specialties & Features

Energy efficiency audits
Air sealing services
Blown-in cellulose insulation

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Amaral Insulation

4.7
(180 reviews)
Verified

A well-established, family-owned and operated insulation contractor based in the South Coast region. They have a strong reputation for reliability, quality workmanship, and personalized service. They offer a wide range of insulation types and are deeply knowledgeable about local building codes and the specific needs of older homes in the Dartmouth area.

(Headquartered in nearby Westport, MA)

Specialties & Features

Attic insulation installation and upgrade
Spray foam insulation
Basement and crawl space insulation

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Mass Foam Spray Systems

4.6
(90 reviews)
Verified

A specialized contractor focused exclusively on spray foam insulation applications. They are experts in both open-cell and closed-cell foam for residential and commercial properties. Their niche expertise makes them a top choice for homeowners in Dartmouth seeking the highest R-value and air barrier performance for new construction, major renovations, or sealing complex spaces like cathedral ceilings and crawl spaces.

(Serves the South Coast region from a Fall River, MA base)

Specialties & Features

Spray foam insulation
Crawl space encapsulation
Insulation removal and replacement

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Dartmouth

** The insulation market in Dartmouth, Massachusetts, is robust and quality-driven, heavily influenced by the state's strong energy efficiency programs. The **average quality of service is high**, as contractors must adhere to strict Mass Save standards to participate in the popular rebate program. This creates a competitive environment where expertise and certification are key differentiators. **Competition level is moderate to high**, with a handful of dominant regional players (like Energy Monster) and several reputable local specialists (like Amaral Insulation) competing for business. Homeowners have a good selection of contractors who are well-versed in the specific challenges of the coastal climate. **Typical pricing** is aligned with the greater New England region. Spray foam is the premium option, often ranging from $1.50 to $3.50 per board foot installed. Blown-in cellulose or fiberglass for an attic typically costs between $1,500 and $4,500, heavily dependent on square footage and existing conditions. The widespread availability of Mass Save rebates and 0% HEAT loans significantly reduces the net cost for many homeowners, making comprehensive insulation upgrades a common and valuable investment in the Dartmouth area.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Dartmouth regulations and climate

Frequently Asked Questions About Insulation in Dartmouth

Get answers to common questions about insulation services in Dartmouth, Massachusetts.

1What is the recommended insulation level (R-Value) for attics in Dartmouth, MA, and why is it specific to our area?

For Dartmouth homes, the U.S. Department of Energy recommends an attic insulation level of R-49 to R-60. This high requirement is due to our Massachusetts coastal climate, which features cold, damp winters and the need for efficient heating. Properly meeting this R-value is crucial for reducing heat loss, managing humidity, and lowering energy bills, especially during our nor'easter seasons.

2Are there any Massachusetts or local Dartmouth programs that offer rebates or incentives for adding insulation?

Yes, Massachusetts offers excellent incentives primarily through the Mass Save® program, which is available to Dartmouth residents. This program provides no-cost home energy assessments and heavily subsidized insulation upgrades, often covering 75-100% of the cost for eligible measures. Additionally, some local utilities may offer complementary rebates, making it a very cost-effective time to upgrade.

3When is the best time of year to install insulation in a Dartmouth home?

While insulation can be installed year-round, the ideal periods in Dartmouth are late spring (May-June) and early fall (September-October). These seasons typically offer milder, drier weather, which is important for certain installations like spray foam that have specific temperature requirements. Scheduling during these off-peak times can also lead to better availability from local contractors.

4How do I choose a reliable insulation contractor in the South Coast area?

Always choose a contractor that is licensed, insured, and, most importantly, a Mass Save® Partner. Partner contractors are rigorously vetted and trained to perform work that qualifies for the state's incentives. For Dartmouth, look for established local companies with strong reviews who understand the specific challenges of older coastal homes, including moisture management and wind-driven rain.

5My older Dartmouth home feels drafty. Should I focus on attic insulation or air sealing first?

You should always prioritize comprehensive air sealing *before* adding new insulation. In historic New England homes, drafts from gaps, windows, and sill plates are a major source of heat loss and moisture intrusion. A Mass Save® assessment will use a blower door test to identify these leaks. Sealing them first prevents conditioned air from escaping and protects your new insulation from moisture damage, maximizing its effectiveness.