Our Services
Comprehensive septic and excavation services for residential and commercial properties across Culpeper, Fauquier, Orange, Madison, Greene, and Rappahannock counties.

Septic Installation
Conventional and alternative septic system installation. Tanks, drain fields, distribution boxes, mound systems, sand filters, and aerobic treatment units. Full permitting assistance across six counties.
- ✓Conventional & alternative systems
- ✓Perc test coordination
- ✓Full permitting assistance
- ✓New construction & replacement
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Septic Repair & Maintenance
Drain field repair, tank repair, distribution box replacement, pipe repair, and baffle replacement. Honest assessments — repair when possible, replace when necessary.
- ✓Drain field & tank repair
- ✓Distribution box replacement
- ✓Emergency service available
- ✓Repair vs. replacement guidance
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Septic Inspections
Professional inspections with detailed reports and photos. Suitable for real estate transactions, lender requirements, and routine maintenance.
- ✓Detailed reports with photos
- ✓Real estate transaction ready
- ✓Conventional & alternative systems
- ✓Buying, selling & routine checks
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Excavation & Site Work
Excavating, lot grading, land clearing, trenching, foundation excavation, road construction, and driveway installation. Heavy equipment for projects of all sizes.
- ✓Land clearing & site prep
- ✓Lot grading & leveling
- ✓Foundation excavation
- ✓Driveways & road construction
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Excavation & Site Work Services
Excavation Services
Residential & commercial site excavation, pond digging, and basement excavation.
Grading & Land Leveling
Lot grading, drainage correction, finish grading, and erosion prevention.
Land Clearing & Site Prep
Tree and brush removal, stump grinding, debris disposal, and site preparation.
Driveways & Roads
Gravel driveway construction, private roads, culvert installation, and regrading.
Trenching & Foundations
Utility trenching, foundation excavation for basements, crawl spaces, and slabs.
Need Septic Pumping?
Thomasson specializes in septic installation, repair, and inspection — we do not provide pumping services directly. However, we work with trusted local pumping contractors and are happy to connect you with a reliable pumper in your area. Learn about septic pumping or contact us for a referral.
Wondering what septic work costs? View our Septic Cost Guide →
Need Expert Service?
Contact us today to discuss your project and receive a free, no-obligation estimate.