The Best Insulation Contractors in Marshall, VA

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

#1

Evergreen Insulation & Waterproofing

4.8
(180 reviews)
Verified

A highly-rated, full-service insulation contractor serving Northern Virginia, including Fauquier County. They emphasize energy efficiency solutions and offer a comprehensive range of services from audits to installation. Their strong reputation is built on professional service and expertise in both new construction and retrofit projects.

8294 Fenton St, Warrenton, VA 20186 (Primary location serving the Marshall area)

Specialties & Features

Spray foam insulation
Crawl space encapsulation
Attic insulation upgrades

Business Information

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

Koala Insulation of Prince William & Fauquier

4.9
(120 reviews)
Verified

Part of a national brand with a strong local franchise, Koala Insulation receives excellent feedback for customer service and clear communication. They specialize in all types of blown-in and batt insulation, with a focus on residential retrofits and improving home comfort.

9201 Enterprise Ct, Manassas, VA 20110 (Serves the broader Northern VA region, including Marshall)

Specialties & Features

Blown-in insulation
Insulation removal and replacement
Energy efficiency audits

Business Information

Years in Business:8 years
Licensed:Yes
Insured:Yes
#3

A+ Insulation Inc.

4.7
(90 reviews)
Verified

A well-established local contractor known for reliable service and expertise in all major insulation types. They frequently work on homes in the rural and semi-rural areas like Marshall and are knowledgeable about the specific needs of older Virginia homes alongside new construction.

7351 McWhorter Pl, Suite 101, Annandale, VA 22003 (Services extend to Fauquier County)

Specialties & Features

Attic insulation installation
Wall insulation services
Air sealing services

Business Information

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

Why These Are the Top Insulation Contractors in Marshall

** The insulation market in and around Marshall, Virginia, is characterized by a need for contractors who can service a mix of historic homes, newer suburban developments, and large rural properties. As Marshall itself is a smaller town, the market is not saturated with local-only providers; instead, it is served by established companies based in nearby commercial hubs like Warrenton, Gainesville, and Manassas. The competition is moderate but of generally high quality, with several well-regarded regional players. These providers are typically well-versed in Virginia building codes and available energy efficiency rebates (e.g., from Dominion Energy). Pricing is competitive but tends to be in the mid-to-high range, reflecting the quality of materials used (especially for spray foam) and the expertise required to properly air-seal and insulate diverse home styles common in Fauquier County. Homeowners are advised to seek multiple quotes and confirm that contractors are specifically familiar with the local climate and building stock.

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 Marshall regulations and climate

Frequently Asked Questions About Insulation in Marshall

Get answers to common questions about insulation services in Marshall, Virginia.

1What is the most cost-effective type of insulation for my older home in Marshall, and what should I budget?

For Marshall's historic homes, blown-in cellulose or fiberglass in attics and walls is often the most cost-effective retrofit, balancing performance with preservation. Budget roughly $1.50 to $3.50 per square foot installed, depending on material, accessibility, and the home's age. Always invest in an air sealing service first, as our humid summers and cold winters make sealing gaps crucial for any insulation to perform efficiently and prevent moisture issues.

2When is the best time of year to have insulation installed in Marshall, VA?

Fall and spring are ideal, offering moderate temperatures that are comfortable for workers and allow for proper curing of air-sealing materials. However, insulation can be installed year-round. Scheduling in the off-peak seasons (late fall/early winter) may provide better availability from local contractors. Avoid the peak of summer if your attic is involved, as extreme heat can be a safety concern and reduce material effectiveness during installation.

3Are there specific local regulations or incentives in Fauquier County for insulation upgrades?

Fauquier County follows the Virginia Uniform Statewide Building Code (USBC), which sets insulation R-value requirements for new construction and major renovations. While there are no direct county-level incentives, Virginia homeowners can leverage federal tax credits for qualified insulation improvements. More importantly, local providers are well-versed in the specific moisture control and ventilation needs for our Piedmont region's climate to ensure compliance and durability.

4How do I choose a reliable insulation contractor in the Marshall area?

Prioritize local, licensed, and insured contractors with strong references from Marshall or nearby towns like Warrenton. Look for companies experienced with both older farmhouses and newer builds, as they'll understand our area's diverse housing stock. Verify they perform a comprehensive energy audit or assessment first, and ensure they are certified by manufacturers (like Owens Corning) or industry groups (BPI), which indicates proper training for our climate zone.

5My house feels drafty in winter and stuffy in summer. Will adding more attic insulation solve this?

Not entirely. While increasing attic insulation to the recommended R-49 (for our Climate Zone 4) is vital, air leakage is often the primary culprit in Marshall's older homes. A professional should first conduct a blower door test to identify and seal leaks in the attic floor, around chimneys, and at top plates. This comprehensive approach of air sealing *plus* insulation is critical for comfort and efficiency, addressing both temperature swings and our local humidity.