SEPTIC SYSTEMS
Mark Viens & Sons Excavating LLC has vast experience in the installation, repair and replacement of various septic systems. Our experience is derived from projects such as Condominiums, Industrial, Commercial and Residential systems.
The following are a brief sample of the various septic systems that we install:
- GeoFlow
- Chamber
- EnviroFlow
- Eljien
- Pipe and Stone

Sitework
Mark Viens & Sons Excavating LLC has extensive experience in the sitework industry. Our main focus is residential and commercial projects. Concentrating on projects of this size, we can complete projects in a timely, cost-effective and efficient manner, with particular attention to quality.
We offer complete sitework services for commercial and residential projects, including those that require particular attention to materials that meet NHDOT, MEDOT or Mass Highway standards.
The following are a brief sample of the sitework services that we provide:
- DIGSAFE Permitting
- Site Clearing
- Erosion Control
- Excavating
- Grading
- Drainage
- Driveway/Parking Lot Installation
- Sidewalk Installation
- Hockey RInks and Facilities

Utility
Mark Viens & Sons Excavating LLC offers complete installation of utilities for commercial, roadways, parking lots and residential subdivisions. Installation is completed in accordance with applicable codes.
The following are a brief sample of utility services we provide:
- Water Service
- Fire Cisterns
- Electric Lines
- Gas Lines
- Fire Hydrants
- Street Taps
- Manholes
- Fire Retention Ponds
- Phone/Cable Lines
