The Best Insulation Contractors in Grand Isle, LA

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

#1

South Louisiana Insulation

4.8
(120 reviews)
Verified

A leading insulation contractor in the Houma area with a strong reputation for comprehensive home performance services. They are particularly noted for their expertise in spray foam and blown-in insulation, which are critical for the humid, hurricane-prone climate of Grand Isle. They conduct detailed energy audits to identify air leaks and inefficiencies.

1243 Saint Charles St, Houma, LA 70360 (Serves Grand Isle)

Specialties & Features

Spray foam insulation
Blown-in insulation
Energy efficiency audits

Business Information

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

Thermo-Seal LLC

4.7
(90 reviews)
Verified

Specializes in advanced spray foam applications for both residential and commercial properties. They are well-versed in the specific building code requirements for coastal Louisiana, including wind load and flood considerations. Their services often include air sealing and crawl space encapsulation, which are vital for managing moisture in Grand Isle.

110 Sycamore Dr, Schriever, LA 70395 (Serves Grand Isle)

Specialties & Features

Spray foam insulation
Crawl space encapsulation
Air sealing services

Business Information

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

A-1 Foam L.L.C.

4.6
(80 reviews)
Verified

A dedicated insulation contractor with a focus on retrofitting existing homes for better energy efficiency. They offer a full suite of services including insulation removal, attic upgrades, and wall insulation, making them a good fit for older homes common in the Grand Isle area. They are known for their customer service and clear communication.

1243 St. Charles St, Houma, LA 70360 (Serves Grand Isle)

Specialties & Features

Insulation removal and replacement
Attic insulation
Wall insulation services

Business Information

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

Why These Are the Top Insulation Contractors in Grand Isle

The insulation market serving Grand Isle, Louisiana, is characterized by a small number of highly specialized regional contractors rather than a dense local presence. Due to Grand Isle's unique coastal environment—facing high humidity, salt air, and significant wind loads from hurricanes—the most reputable providers are those based in nearby Houma and Schriever who have specific expertise in these challenges. The market competition is moderate, with a focus on quality and durability over low-cost options. Spray foam insulation is a premium and highly recommended service due to its superior air-sealing and moisture-resistant properties, though blown-in fiberglass and cellulose remain popular for attic applications. Typical pricing is above the national average, reflecting the specialized materials and expertise required for the demanding climate, with comprehensive whole-home projects (including air sealing and attic insulation) often ranging from $4,000 to $10,000+. Homeowners are advised to seek contractors who are familiar with Louisiana's specific energy rebate programs and fortified building standards for wind resistance.

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 Grand Isle regulations and climate

Frequently Asked Questions About Insulation in Grand Isle

Get answers to common questions about insulation services in Grand Isle, Louisiana.

1What type of insulation is best for homes in Grand Isle, given our hot, humid climate and hurricane risk?

For Grand Isle's climate, spray foam insulation is often the top recommendation because it provides an excellent air and moisture barrier, which is critical for managing humidity and preventing mold. However, for homes in high-wind zones, ensuring the insulation method complements the home's structural integrity against hurricane-force winds is vital. A local professional can assess your specific home to balance energy efficiency with storm resilience.

2How does the timing of insulation work in Grand Isle align with hurricane season and tourist seasons?

The ideal time for insulation projects in Grand Isle is during the drier, milder months of late fall, winter, and early spring (October to April). This avoids the peak humidity of summer, which can affect certain insulation installations, and the height of hurricane season (June-November). Scheduling outside of major fishing tournaments and summer tourist peaks can also ensure better availability from local contractors.

3Are there specific local building codes or regulations in Grand Isle that affect insulation installation?

Yes, insulation work must comply with the Louisiana State Uniform Construction Code (LSUCC), which adopts the International Residential Code (IRC). For Grand Isle, special attention is paid to codes for wind resistance (especially for roof decks and attic ventilation) and flood zone construction. Using a licensed Louisiana insulation contractor ensures they are familiar with these requirements, including any local Grand Isle ordinances for coastal construction.

4What is the typical cost range for adding or upgrading attic insulation in a Grand Isle home?

Costs vary based on material and home size, but for a typical 1,500 sq ft home, adding blown-in fiberglass attic insulation might range from $1,500 to $3,000, while spray foam can range from $3,500 to $7,000+. In Grand Isle, prices can be slightly higher due to transportation costs for materials and the expertise required for coastal construction. The investment is often quickly offset by significant savings on year-round air conditioning costs.

5My home is elevated on pilings. Does this change the insulation approach, and what areas are most critical?

Absolutely. For elevated homes, insulating the enclosed floor system (the "underbelly") is paramount to prevent cold floors in winter and to block humid air from entering the living space. The attic remains critical for blocking radiant heat. It's essential to use moisture-resistant materials and ensure proper ventilation to prevent condensation in these encapsulated spaces, which are highly susceptible to Grand Isle's salty, humid air.