The Best Insulation Contractors in Brentwood, NY

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

#1

True Energy Solutions

4.8
(200 reviews)
Verified

A leading Long Island-based energy conservation specialist focused on high-performance insulation and air sealing. They are well-regarded for their expertise in spray foam and their comprehensive approach to building science, often working with programs like NYSERDA to help homeowners access rebates and financing.

225 Executive Dr, Plainview, NY 11803 (Serves Brentwood and all of Long Island)

Specialties & Features

Spray foam insulation
Air sealing services
Energy efficiency audits

Business Information

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

Long Island Insulation Company

4.7
(150 reviews)
Verified

This company has built a strong reputation specifically for insulation services across Long Island. They offer a wide array of insulation types and are known for professional installation in both new construction and existing homes, with a particular focus on attic and wall systems.

165 Adams Ave, Hauppauge, NY 11788 (Serves Brentwood and the surrounding area)

Specialties & Features

Blown-in insulation installation
Attic insulation installation and upgrade
Wall insulation services

Business Information

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

All Island Energy Solutions

4.6
(100 reviews)
Verified

A full-service contractor specializing in making homes more energy-efficient and comfortable. They provide a complete suite of insulation services, including removal and replacement of old insulation, and are skilled in insulating difficult areas like basements and crawl spaces.

235 Marcus Blvd, Deer Park, NY 11729 (Services the Brentwood area)

Specialties & Features

Insulation removal and replacement
Basement and crawl space insulation
Spray foam insulation

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes

Why These Are the Top Insulation Contractors in Brentwood

** The insulation market in Brentwood, NY, is characterized by high demand driven by older housing stock, rising energy costs, and increased homeowner awareness of energy efficiency. The competition is strong among regional contractors, rather than hyper-local Brentwood-only businesses. The average quality of service is high, as leading contractors must hold state licenses, carry insurance, and often possess specialized certifications (like from BPI or spray foam manufacturers) to remain competitive and comply with New York State building codes. Typical pricing is moderate to high, reflecting the cost of living on Long Island and the specialized materials and labor involved. A standard attic blown-in insulation project can range from $1,500 to $4,000, while a full home spray foam application can be a significant investment of $10,000 or more. However, the availability of NYSERDA rebates and financing options through these qualified contractors makes these upgrades more accessible for Brentwood homeowners looking to reduce their utility bills and improve home comfort.

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 Brentwood regulations and climate

Frequently Asked Questions About Insulation in Brentwood

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

1What are the most important insulation upgrades for my Brentwood home given our local climate?

For Brentwood's humid summers and cold, wet winters, the top priorities are air sealing and attic insulation. Proper air sealing prevents moist summer air from entering and causing mold, while high R-value attic insulation (typically R-49 to R-60) is critical for retaining heat. Basement and crawl space insulation are also highly recommended to combat ground moisture and drafts common in our area.

2How much does insulation installation typically cost for a home in Brentwood?

Costs vary significantly by project scope, but for a standard attic insulation upgrade in Brentwood, homeowners can expect to pay between $1,500 and $4,000. Regional material and labor costs on Long Island are above the national average. Crucially, you should inquire about available rebates from NYSERDA (New York State Energy Research and Development Authority) and tax credits, which can offset 20-30% of the project cost for qualifying upgrades.

3When is the best time of year to schedule insulation work in Brentwood?

Fall and early spring are ideal times. Scheduling in these shoulder seasons ensures contractors are available before the winter rush and allows for proper ventilation during installation, which is more comfortable than in peak summer heat or winter cold. However, insulation can be installed year-round, and addressing urgent drafts or heat loss should not be delayed.

4What should I look for when choosing a local Brentwood insulation contractor?

Always verify the contractor is licensed and insured to work in New York. Look for companies with specific experience in our region's older housing stock and moisture challenges. They should provide a detailed energy audit or assessment and be fully knowledgeable about NYSERDA programs. Check for local reviews and ask for proof of certifications from manufacturers like Owens Corning or Johns Manville.

5My house feels drafty in winter. Could my old insulation be the problem, and what are common signs it needs replacement?

Yes, old, settled, or moisture-compromised insulation is a leading cause of drafts and high energy bills in Brentwood homes. Key signs include uneven room temperatures, ice dams on the roof in winter, excessively high National Grid or PSEG Long Island bills compared to neighbors, and visible insulation that is thin, matted, or shows signs of moisture or pest damage. An energy audit can pinpoint the exact issues.