The Best Insulation Contractors in Central Islip, NY

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

#1

All Island Group

4.8
(300 reviews)
Verified

A highly reputable, full-service insulation and energy efficiency contractor serving Long Island for over two decades. They are known for their professional crews, comprehensive energy audits, and expertise in a wide range of insulation types, including high-performance spray foam. They strongly emphasize air sealing to maximize the effectiveness of their insulation work.

265 Central Islip Blvd, Central Islip, NY 11722 (This is a verified business address)

Specialties & Features

Spray foam insulation
Energy efficiency audits
Air sealing services

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#2

Long Island Insulation

4.7
(150 reviews)
Verified

A well-established contractor specializing in both residential and commercial insulation. They have a strong focus on modern blown-in and spray foam applications but also offer traditional batt insulation and removal services. They are recognized for their knowledge of local building codes and available energy rebate programs.

65 Hoffman Ln, Central Islip, NY 11722 (This is a verified business address)

Specialties & Features

Blown-in insulation
Spray foam insulation
Insulation removal and replacement

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Green Attic Insulation

4.9
(80 reviews)
Verified

A highly-rated, specialist contractor focusing primarily on attic services and energy efficiency. While they excel in attic insulation and air sealing, they also provide wall and basement insulation. Their high customer satisfaction scores indicate a strong focus on quality workmanship and customer service.

(Serves Central Islip from a nearby base, often listed as based in the Ronkonkoma/Farmingville area)

Specialties & Features

Attic insulation installation and upgrade
Air sealing services
Blown-in insulation

Business Information

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

Why These Are the Top Insulation Contractors in Central Islip

** The insulation market in Central Islip and the surrounding Suffolk County area is competitive and service-oriented, driven by the region's mix of older housing stock and newer constructions. Homeowners are increasingly aware of energy costs, making energy efficiency audits and advanced solutions like spray foam popular. * **Average Quality:** The market is bifurcated. There are many established, high-quality contractors (like those listed above) who are licensed, insured, and use certified materials. However, there is also a segment of smaller, less-specialized general handyman services, so due diligence is recommended. * **Competition Level:** High. Numerous contractors compete for business, which benefits consumers through competitive pricing and a focus on customer service. Reputation and online reviews are critical differentiators. * **Typical Pricing:** Pricing is influenced by material costs (spray foam is premium, blown-in cellulose/fiberglass is more budget-friendly) and home size. Ballpark ranges for a standard attic can be from **$1,500 - $4,000+** for blown-in fiberglass/cellulose, while spray foam installations typically start at **$4,500+** for the same area. Most reputable companies provide free, detailed estimates. New York State and PSEG Long Island often offer rebates and financing for energy-efficient upgrades, which top contractors will help customers navigate.

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 Central Islip regulations and climate

Frequently Asked Questions About Insulation in Central Islip

Get answers to common questions about insulation services in Central Islip, New York.

1What is the typical cost range for attic insulation in a Central Islip home, and what factors influence the price?

For a typical 1,500 sq ft attic in Central Islip, adding or upgrading insulation can range from $1,500 to $4,500, depending on the material (like fiberglass batts vs. blown-in cellulose) and the desired R-Value. Key cost factors include the existing insulation condition, attic accessibility, and the chosen contractor's labor rates, which are influenced by Long Island's higher cost of living. We recommend getting multiple itemized quotes that specify material type, R-Value, and square footage for accurate comparison.

2When is the best time of year to install or upgrade insulation in Central Islip?

While insulation can be installed year-round, the ideal times in our climate are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is crucial for proper installation and allows for adequate attic ventilation during the work. Avoiding peak summer heat makes the process more comfortable for installers and prevents winter delays, ensuring your home is sealed before the cold Suffolk County winter sets in.

3Are there specific insulation requirements or rebates for Central Islip, NY, homeowners?

Yes, insulation work must comply with New York State Energy Conservation Construction Code, which specifies minimum R-Values for our climate zone (Zone 4). Importantly, Suffolk County and NYSERDA (New York State Energy Research and Development Authority) offer significant rebates and financing options, like the EmPower+ program, for eligible insulation upgrades that improve home energy efficiency. A qualified local contractor will be familiar with these programs and can help you navigate the application process.

4How do I choose a reliable insulation contractor in the Central Islip area?

Always verify that the contractor is licensed and insured to work in Suffolk County. Look for established local companies with strong reviews on platforms like Google and the Better Business Bureau, and specifically ask for references from recent jobs in Central Islip or nearby towns. A trustworthy provider should offer a free, detailed inspection and clearly explain their recommended solution, warranty, and how it addresses Long Island's humid summers and cold winters.

5My house feels drafty in winter. Is adding insulation the best solution, or could it be another issue?

While inadequate insulation is a common culprit, draftiness in older Central Islip homes is often a combination of poor insulation and air leaks (e.g., around windows, doors, and attic hatches). A professional energy audit or comprehensive assessment is the best first step to identify the specific issues. Properly air-sealing these leaks before adding insulation is critical; otherwise, you're heating the outdoors, which is inefficient and costly given our local utility rates from PSEG Long Island.