Pentagon Construction & Services LLC

About Pentagon Construction & Services LLC

Pentagon Construction & Services LLC is a licensed basement waterproofing and foundation services company based in Dumfries, Virginia. The company specializes in general contracting and renovation and serves homeowners throughout Dumfries and the neighboring communities. With a focus on long-term, warrantied solutions, Pentagon Construction & Services LLC helps Virginia families protect their homes from water intrusion, foundation moisture, and the structural damage that chronic dampness can cause. With a 4.9-star Google rating backed by 18 verified reviews, the company has built a reputation for dependable results and responsive customer service.

The team at Pentagon Construction & Services LLC is trained to diagnose moisture problems at their source rather than simply treating the symptoms. Core service offerings include general contracting and renovation and water damage restoration, interior and exterior drainage system installation, sump pump sales and installation, crawl space encapsulation with reinforced vapor barriers, and foundation crack repair using industry-standard injection and reinforcement methods. Every project begins with a thorough on-site inspection and a written, itemized estimate — no surprises, no pressure.

Pentagon Construction & Services LLC uses commercial-grade waterproofing materials sourced from leading manufacturers in the waterproofing industry. Products commonly installed include high-capacity sump pump systems with battery backup, reinforced polyethylene vapor barriers for crawl space encapsulation, interior drain tile systems, wall anchor and carbon fiber strap systems for bowing or leaning basement walls, epoxy and polyurethane injection kits for crack repair, and heavy-duty dehumidification units for humidity control. All products are selected for Virginia's climate and soil conditions.

Based in Dumfries, Pentagon Construction & Services LLC serves residential and light-commercial clients throughout the Dumfries area and beyond. The company is available for projects across a wide service radius and can accommodate urgent calls when active water intrusion or flooding threatens a home. Contact our network at (757) 743-9050 to confirm service availability in your specific ZIP code and schedule a free on-site consultation.

Choosing the right waterproofing contractor is one of the most important decisions a homeowner can make for the long-term value and safety of their property. Pentagon Construction & Services LLC combines local expertise, quality materials, and transparent pricing to deliver results that last. Call (757) 743-9050 or use the free quote form on this page to get started with a no-obligation estimate today.

Services Offered

• General contractor
• Bathroom remodeler
• Deck builder
• Dry wall contractor
• Fire damage restoration service
• Interior designer
• Kitchen remodeler
• Water damage restoration service

Business Hours

Monday	7AM-5PM
Tuesday	7AM-5PM
Wednesday	7AM-5PM
Thursday	7AM-5PM
Friday	7AM-5PM
Saturday	7AM-5PM
Sunday	Open 24 hours

Customer Testimonial

Before & After

Sample before/after — replace with real project photos.