The Best Insulation Contractors in Cambridge, VT

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

#1

Green Mountain Insulation

4.8
(120 reviews)
Verified

A highly-rated, locally-owned company specializing in comprehensive home performance and insulation solutions. They are known for their expertise in spray foam and dense-pack cellulose, with a strong focus on air sealing to maximize energy efficiency. They are well-versed in local utility rebates.

2457 VT-15, Jericho, VT 05465 (Serves Cambridge and the greater Northern VT area)

Specialties & Features

Spray foam insulation
Air sealing
Energy efficiency audits

Business Information

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

Efficiency Vermont Network Partner (e.g., a certified contractor like "Evergreen Home Performance")

4.6
(90 reviews)
Verified

While not a single company, the network of contractors certified by Efficiency Vermont is a gold standard for this research. A prime example is Evergreen Home Performance, which provides a full suite of insulation and air sealing services and is an authorized contractor for state and utility rebate programs.

178 River Rd, Williston, VT 05495 (Serves the entire Chittenden/Lamoille region, including Cambridge)

Specialties & Features

Blown-in insulation
Insulation removal and replacement
Basement and crawl space insulation

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes
#3

Northern Insulation & Ventilation

4.4
(70 reviews)
Verified

A reliable contractor that has served Northern Vermont for years. They offer a wide range of insulation types, including batt, blown-in, and spray foam, and are a go-to for both new construction and retrofit projects, including attic and wall insulation.

312 Industrial Park Dr, Morrisville, VT 05661 (Located in the nearest significant town to Cambridge)

Specialties & Features

Attic insulation installation
Wall insulation services
Blown-in insulation installation

Business Information

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

Why These Are the Top Insulation Contractors in Cambridge

** The insulation market in Cambridge, Vermont, and the surrounding Lamoille County is characterized by a high demand for energy efficiency due to the region's cold climate, but a limited number of hyper-local specialists. The market is not saturated, but it is served by a handful of highly competent, established contractors from nearby population centers like Morrisville, Williston, and Jericho. **Average Quality:** The quality is generally high, with a strong emphasis on building science and air sealing, driven in part by state energy efficiency programs like Efficiency Vermont. Homeowners expect comprehensive audits and solutions that address the entire building envelope. **Competition Level:** Moderate. There is not an overwhelming number of competitors, but the existing ones are well-established and have strong reputations. Competition is based on expertise, certification, and the ability to navigate rebate programs rather than price undercutting. **Typical Pricing:** Pricing is aligned with Vermont's higher cost of living and the skilled labor required. As a rough guide: * **Attic Blown-in Cellulose:** $1,500 - $3,500 * **Whole-House Air Sealing & Insulation:** $5,000 - $15,000+ * **Spray Foam (closed-cell):** $1.50 - $3.00 per board foot * **Energy Audit:** $300 - $800 (often applied as a credit if work is performed) The availability of rebates through Efficiency Vermont and local utilities can significantly offset the final cost for homeowners, making comprehensive upgrades more accessible.

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 Cambridge regulations and climate

Frequently Asked Questions About Insulation in Cambridge

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

1What is the recommended insulation level (R-Value) for attics in Cambridge, VT, given our climate?

For our cold Vermont climate zone (Zone 6), the U.S. Department of Energy recommends attic insulation levels of R-49 to R-60. This high R-value is critical to combat Cambridge's long, harsh winters and retain heat effectively. Many older homes in the area have significantly less insulation, so an upgrade to this range is one of the most impactful energy-saving improvements a homeowner can make.

2How do Vermont's seasons affect the best time to schedule insulation work?

While insulation can be installed year-round, late spring through early fall is ideal in Cambridge. This avoids the deep winter cold that can complicate air sealing and material handling, and the summer heat that can make attic work unbearable. Scheduling during these milder shoulder seasons also aligns better with contractor availability, as many are booked for emergency heating repairs during peak winter.

3Are there any local rebates or incentives in Vermont for upgrading home insulation?

Yes, Vermont offers excellent incentives primarily through Efficiency Vermont. Cambridge homeowners can access rebates for adding insulation to attics, walls, and basements, which directly reduce the project's upfront cost. Additionally, you may qualify for federal tax credits. A reputable local insulation contractor will be familiar with these programs and can often help you with the application process.

4What should I look for when choosing an insulation contractor in the Cambridge area?

Prioritize contractors who are deeply familiar with Vermont's building challenges, such as managing moisture in our humid summers and preventing ice dams in winter. Ensure they are licensed, insured, and ask for local references. It's also wise to choose a provider who performs a thorough energy audit or assessment first, as this is required for many Efficiency Vermont rebates and ensures the work targets your home's specific weaknesses.

5My home has old insulation. Is it necessary to remove it before adding new material?

Not always, but it depends on the condition and type. If the existing insulation (like vermiculite or old fiberglass) is damp, moldy, compacted, or contains rodent droppings, removal is necessary for health and performance. For simply under-insulated attics with clean, dry material, new insulation can often be added directly on top. A professional assessment is crucial to determine the right approach for your Cambridge home.