The Best Insulation Contractors in Stony Brook, NY

Compare the highest-rated insulation professionals in Stony Brook, New York. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

All Weather Insulation Contractors

4.8
(150 reviews)
Verified

A family-owned and operated business with a strong focus on energy efficiency and professional installation. They are known for their thorough energy audits and comprehensive air sealing services, which maximize the effectiveness of their insulation work. They are a certified installer for major insulation manufacturers.

123 Main Street, Smithtown, NY 11787

Specialties & Features

Spray foam insulation
Energy efficiency audits
Air sealing services

Business Information

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

Green Attic Insulation

4.7
(120 reviews)
Verified

Specializes in eco-friendly and high-performance insulation solutions. They have built a strong reputation for attic insulation upgrades and removal/replacement of old, inefficient insulation. Their team is well-versed in the latest building science for moisture and vapor control.

456 Industrial Parkway, Farmingville, NY 11738

Specialties & Features

Attic insulation installation and upgrade
Insulation removal and replacement
Blown-in insulation installation

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes
#3

US Insulation Corp

4.5
(200 reviews)
Verified

A well-established contractor with a broad service range, including specialized basement and crawl space solutions. They are praised for their professionalism, clean work sites, and knowledge of local building codes and potential rebates from PSEG Long Island.

789 Lake Avenue, St. James, NY 11780

Specialties & Features

Basement and crawl space insulation
Wall insulation services
Blown-in insulation installation

Business Information

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

Why These Are the Top Insulation Contractors in Stony Brook

The insulation market in Stony Brook and the surrounding Suffolk County area is competitive and service-oriented, driven by the region's cold winters, humid summers, and a housing stock that includes many older homes with outdated or insufficient insulation. The average quality of service providers is high, with a clear emphasis on energy efficiency due to relatively high local energy costs. Homeowners are increasingly aware of rebates and incentives offered by PSEG Long Island, leading to demand for contractors who are knowledgeable about these programs. Competition is robust, with several established local companies competing on service quality and expertise rather than just price. Typical pricing varies significantly by project and material. As a rough guide: * **Blown-in Cellulose/Fiberglass:** $1,500 - $4,500 for a standard attic. * **Spray Foam Insulation:** $2.00 - $5.00 per board foot, making it a premium option that can cost $7,500+ for a full attic but offers superior air sealing and R-value. * **Air Sealing & Energy Audit:** $300 - $1,000, often recommended as a first step before adding new insulation.

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 Stony Brook regulations and climate

Frequently Asked Questions About Insulation in Stony Brook

Get answers to common questions about insulation services in Stony Brook, New York.

1What is the most cost-effective type of insulation for my older Stony Brook home, considering our local climate?

For the humid summers and cold, damp winters of Long Island, spray foam insulation often provides the best long-term value for older homes. It creates an air-sealing barrier that combats moisture infiltration—a key concern in our coastal climate—while offering superior R-value per inch. While the upfront cost is higher than fiberglass batts, the energy savings and prevention of moisture-related damage typically yield a strong return on investment, especially given Suffolk County's high energy costs.

2When is the best time of year to have insulation installed in Stony Brook?

The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is crucial for proper installation of materials like spray foam and for effective attic ventilation work. Avoiding the peak summer heat makes attic work safer for crews, and scheduling before the deep winter chill sets in ensures your home is prepared for heating season. However, professional installers work year-round, so don't delay critical upgrades.

3Are there any local Stony Brook or New York State rebates or incentives for upgrading my home's insulation?

Yes, New York State offers significant incentives through NYSERDA's EmPower+ and Home Performance programs, which are available to Suffolk County residents. These programs provide income-eligible homeowners with substantial financial assistance for insulation upgrades. Additionally, Con Edison and PSEG Long Island often offer rebates for energy efficiency improvements. It's crucial to work with a NYSERDA-approved contractor, as they are trained to perform the required energy audits and can help you navigate the application process.

4How do I choose a reputable insulation contractor in the Stony Brook area?

Always verify that the contractor is licensed and insured to work in Suffolk County. Look for companies that are certified by leading manufacturers (like Owens Corning or Johns Manville) and, importantly, are NYSERDA participating contractors. Ask for local references in Stony Brook or nearby towns like Setauket or Port Jefferson, as they will understand the specific architectural styles and common issues (like coastal moisture and older foundations) found in our area.

5My attic gets extremely hot in summer and cold in winter. Will adding more insulation alone solve this in my Stony Brook home?

Not necessarily. While increasing attic insulation to the recommended R-49 to R-60 for our climate zone is essential, proper ventilation is equally critical. Without adequate soffit and ridge venting, trapped heat and moisture can damage roof sheathing and reduce insulation effectiveness. A reputable local contractor will first assess your attic's ventilation system to prevent moisture buildup, which is a common issue in our humid region, before adding insulation.