Preserved source record · Contact actions inactive

Comfenergy

Sterling, VA

Historical published listing captured November 3, 2026. Original statements below are preserved source content, not fresh verification, an endorsement, or confirmation of credentials, service coverage or business type. Phone, email and external-company links in the source body are inactive. Ratings, badges and logos are not reproduced.

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Retained directory description

Comfenergy provides crawl-space insulation and encapsulation services and lists its company contact location in Sterling, Virginia. Its service pages describe installing vapor barriers and replacing crawl-space insulation with rigid foam or spray foam. A company project account also describes removing damaged insulation before installing a crawl-space liner, floor insulation and wall insulation.

Crawl-space services

Crawl Space Encapsulation
Vapor Barrier Installation
Crawl Space Moisture Control
Insulation Removal / Replacement

The company lists Sterling, Ashburn, Leesburg, The Plains and Winchester among its service communities. These are service areas; the documented contact city is Sterling. Its affiliations page identifies 3 Pros Basement Systems as a sister company. They are represented together in this listing.

Contact and sources

Call 800-604-2252. The company publishes a Sterling contact address; public office access has not been verified. See its crawl-space service description and insulation and encapsulation project for details. Sources reviewed October 12, 2026 through cached or indexed company pages. The project account is from 2022; current services and availability should be confirmed directly.

Retained address details

No street address captured. 20166

Native office-type label: unknown. This historical label is not fresh verification of a staffed or walk-in office. Confirm before visiting.

An address or locality does not establish a service area. Mailing addresses are not presented as staffed offices.

Historical location and service assignments

Assignments are source labels, not independently confirmed offices or service coverage. Locality, office and coverage must not be treated as interchangeable.

Retained service-area wording: The company lists Sterling, Ashburn, Leesburg, The Plains and Winchester among service communities. Confirm availability for the property directly.