Compare the highest-rated insulation professionals in Castleton, Vermont. All contractors are licensed, insured, and verified through our rigorous screening process.
A highly-rated and specialized insulation contractor serving Vermont, including the Rutland County area. They are known for their expertise in modern insulation techniques, particularly spray foam and dense-pack cellulose, and have a strong focus on improving home energy efficiency and building performance.
A comprehensive home performance company that treats a house as a system. They are a top choice for homeowners seeking whole-home energy solutions, starting with a professional energy audit. Their services are integrated, meaning they address insulation, air sealing, and ventilation together for optimal results.
As the name implies, this provider is a specialist in spray foam applications for residential and commercial properties. They are an excellent choice for complex projects, new construction, and achieving high R-values in tight spaces like cathedral ceilings and rim joists.
** The insulation market in the Castleton and greater Rutland County area is characterized by a small number of highly specialized, quality-focused contractors rather than a high volume of competitors. Due to Vermont's cold climate and high heating costs, there is a strong driver for energy efficiency, leading to a demand for advanced solutions like spray foam and dense-pack cellulose. The market is not saturated, but the existing providers are established, professional, and typically hold relevant certifications (e.g., from Building Performance Institute - BPI). Homeowners in Castleton are often eligible for state-level rebates and incentives through **Efficiency Vermont**, and the top contractors are well-versed in these programs, often handling the paperwork for clients. Pricing is typically at a premium compared to national averages, reflecting the higher cost of doing business in Vermont and the expertise required, but it is competitive among local providers. A typical whole-house insulation and air sealing project can range from $8,000 to $20,000+, depending on the home's size, existing conditions, and materials chosen (with spray foam being the most expensive option).
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Castleton regulations and climate
Get answers to common questions about insulation services in Castleton, Vermont.
For many older Vermont homes, air sealing combined with blown-in cellulose or fiberglass insulation in attics and walls is highly cost-effective. Cellulose is particularly good for our climate as it has a higher density, which helps reduce air infiltration. The initial investment is offset by significant savings on heating bills, especially with Vermont's long heating season, and you may qualify for Efficiency Vermont rebates to reduce the upfront cost.
The ideal times are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather which is crucial for certain installations like spray foam that require specific temperature ranges. Scheduling during these shoulder seasons also ensures the work is completed before the deep cold of a Castleton winter sets in, maximizing your comfort and savings.
Yes, Vermont has strict energy codes, and reputable local contractors will ensure compliance. The most important program is Efficiency Vermont, which offers cash rebates for adding insulation and air sealing to existing homes, directly reducing your project cost. Additionally, Rutland County may have specific building permit requirements, so always verify with the Castleton town office and choose a provider familiar with these local protocols.
Look for licensed, insured contractors with specific experience in Vermont's climate. Ask for local references in Rutland County and check their standing with the Better Business Bureau. A trustworthy provider will conduct a thorough energy audit or assessment before quoting, and they should be well-versed in administering Efficiency Vermont rebates. Avoid contractors who give quotes without inspecting your home's specific needs.
In Castleton, where winter winds come off Lake Bomoseen and the Taconic Mountains, air sealing is the critical first step. Adding insulation on top of significant drafts is like wearing a wool sweater unzipped—heat still escapes. A professional assessment will identify leaks around windows, doors, and penetrations. Proper air sealing, followed by adding insulation to recommended Vermont R-values (R-49 for attics, for example), provides the best comfort and energy savings.