Compare the highest-rated insulation professionals in Grand Isle, Vermont. All contractors are licensed, insured, and verified through our rigorous screening process.
A leading specialty contractor in Northwest Vermont focusing on high-performance spray foam and cellulose insulation. They are well-regarded for their expertise in creating airtight building envelopes for both new construction and retrofit projects. They are a recognized partner with Efficiency Vermont, ensuring their work qualifies for potential rebates.
A full-service insulation contractor known for comprehensive home performance upgrades. They offer a wide range of services from insulation removal to new installations in attics, walls, and basements. Their strong customer reviews frequently mention professionalism, cleanliness, and clear communication.
This company takes a whole-home approach to energy efficiency. They are experts in conducting energy audits and then implementing the recommended solutions, which often include advanced air sealing and insulation upgrades. Their knowledge of local building codes and rebate programs is a significant strength.
The insulation market in Grand Isle, Vermont, is characterized by high-quality, specialized contractors who travel from neighboring, more populous areas like Chittenden County. Due to Vermont's cold climate and strong energy efficiency incentives (primarily through Efficiency Vermont), the market is competitive in terms of service quality and expertise rather than price. Customers are typically well-informed and value long-term energy savings and comfort. The average competition level is moderate; while there are not dozens of local providers, the ones that serve the area are established, highly professional, and technically proficient. Typical pricing is at a premium compared to national averages, reflecting the high quality of materials used, the expertise required for Vermont's building standards, and the travel costs for contractors. A full attic insulation project with air sealing can range from $2,500 to $5,000+, while comprehensive whole-home spray foam installations can be a significant investment of $10,000 or more, though often offset by substantial energy savings and available rebates.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Grand Isle regulations and climate
Get answers to common questions about insulation services in Grand Isle, Vermont.
Given Grand Isle's cold winters with significant lake-effect snow and wind off Lake Champlain, air sealing and adding attic insulation are the most critical first steps. We recommend achieving at least R-49 to R-60 in your attic with blown-in cellulose or fiberglass to combat substantial heat loss. Properly insulating basement rim joists and walls is also vital to prevent drafts and moisture issues common in our region.
The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather which is crucial for projects like attic work or exterior foam board installation. Winter installations are possible but can be complicated by snow cover and extreme cold, while mid-summer attic work can be uncomfortably hot for crews and may require special scheduling.
Prioritize contractors licensed and insured in Vermont with specific experience in our climate. Ask for local references and proof of work on similar older homes common in the islands. A reputable provider should perform a thorough energy audit or assessment first and be knowledgeable about Vermont's energy efficiency programs, like those from Efficiency Vermont, which offer rebates that can significantly offset your project cost.
It is a primary concern. The humidity from the lake, combined with our temperature swings, can lead to condensation and mold within wall cavities if insulation is installed incorrectly. A proper strategy includes installing a vapor retarder on the warm-in-winter side (interior) of the insulation and ensuring excellent ventilation in attics and crawl spaces to allow moisture to escape, protecting your home's structure.
Absolutely. For older, under-insulated homes common in the area, adding attic insulation often has the fastest payback in reduced heating bills, which is significant given our heavy reliance on heating oil or propane. Efficiency Vermont typically offers rebates per square foot for adding insulation to meet recommended R-values, and your contractor should help you apply. These incentives, combined with long-term savings, make it a very valuable investment.