The Best Insulation Contractors in South Burlington, VT

Compare the highest-rated insulation professionals in South Burlington, Vermont. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Green Mountain Insulation & Foam

4.8
(120 reviews)
Verified

A highly specialized and well-regarded contractor focusing on modern, high-performance insulation solutions. They are particularly noted for their expertise in spray foam and cellulose, and their deep understanding of building science for creating tight building envelopes in Vermont's climate. They work closely with homeowners and builders to maximize energy efficiency.

354 Hurricane Ln, Williston, VT 05495 (Approx. 4 miles from South Burlington)

Specialties & Features

Spray foam insulation
Blown-in cellulose
Air sealing services

Business Information

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

Farrell Insulation

4.7
(90 reviews)
Verified

A established, family-owned insulation contractor with a strong reputation for reliability and quality workmanship across a wide range of insulation types. They are known for their professional crews, clean job sites, and effectiveness in both new construction and retrofit projects, including comprehensive attic and basement insulation.

5 Market Place, Essex Junction, VT 05452 (Approx. 5 miles from South Burlington)

Specialties & Features

Attic insulation installation
Basement and crawl space insulation
Insulation removal and replacement

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Vermont Energy Contracting

4.6
(150 reviews)
Verified

This company takes a holistic, whole-house approach to energy efficiency. They are a certified Home Performance with ENERGY STAR contractor, meaning they specialize in comprehensive energy audits to diagnose issues before proposing solutions. Their services are ideal for homeowners seeking to lower energy bills through a combination of insulation, air sealing, and ventilation.

128 Industrial Ave, Williston, VT 05495 (Approx. 4 miles from South Burlington)

Specialties & Features

Energy efficiency audits
Air sealing services
Blown-in insulation installation

Business Information

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

Why These Are the Top Insulation Contractors in South Burlington

** The insulation market in South Burlington and the greater Chittenden County area is robust and highly competitive, driven by Vermont's cold climate, high energy costs, and a strong cultural emphasis on sustainability and efficiency. The average quality of service is high, as contractors must adhere to strict state energy codes and are often certified by programs like **Efficiency Vermont**, which also offers significant rebates that influence consumer choice. The competition is fierce among a mix of a few large, established players and several smaller specialized crews. This benefits the consumer through competitive pricing and a focus on quality. Pricing is typically at a premium compared to national averages due to the high cost of living, skilled labor, and material transport, but it is offset by the long-term energy savings and available rebates. Homeowners are generally well-informed and seek out contractors who can provide data-driven results (like blower door tests) and who possess a deep understanding of moisture management and ventilation—critical factors in Vermont's humid summers and cold winters.

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 South Burlington regulations and climate

Frequently Asked Questions About Insulation in South Burlington

Get answers to common questions about insulation services in South Burlington, Vermont.

1What is the best type of insulation for my older home in South Burlington, given our cold winters?

For South Burlington's climate (Climate Zone 6), achieving a high R-value is critical. In older homes, dense-pack cellulose or spray foam are often top choices for wall cavities, as they provide excellent air sealing and thermal performance. For attics, adding blown-in cellulose or fiberglass over existing insulation is very effective and common. A professional assessment is key, as the best solution depends on your home's specific construction, moisture profile, and existing insulation.

2Are there any local rebates or incentives for insulation upgrades in South Burlington?

Yes, Vermont offers excellent incentives primarily through Efficiency Vermont. Homeowners can access rebates for air sealing and adding insulation that meets specific performance standards. Additionally, you may qualify for federal tax credits for certain insulation materials. We recommend checking Efficiency Vermont's website for current rebate details and consulting with a participating contractor who can help you navigate the application process to maximize your savings.

3When is the ideal time of year to get insulation work done in South Burlington?

While insulation can be installed year-round, the best time is typically late spring through early fall (May to October). This allows for optimal conditions for air sealing and for materials like spray foam to cure properly. Scheduling during this period is also easier, as winter is the peak demand season for insulation contractors in Vermont. Planning ahead for a fall installation ensures your home is sealed tight before the harsh winter sets in.

4How do I choose a reputable insulation contractor in the South Burlington area?

Look for contractors who are licensed, insured, and have strong local references. Specifically, choose one that is a registered contractor with Efficiency Vermont, as this ensures they are trained in the latest building science standards for our climate. Ask about their experience with Vermont's older home stock and their process for conducting a pre-installation energy audit or assessment, which is crucial for a proper scope of work.

5Should I be concerned about moisture or ice dams when adding attic insulation?

Absolutely. In South Burlington, proper attic ventilation and air sealing are just as important as the insulation itself to prevent moisture buildup and ice dams. A qualified contractor will ensure soffit and ridge vents are clear and will meticulously air seal the attic floor (top plates, wire penetrations, plumbing stacks) before adding insulation. This prevents warm, moist air from the living space from entering the cold attic, which is the primary cause of these winter problems.