Septic System Design, Installation, Repair, and Replacement
Septic & Leach Field Services
A properly functioning septic system is essential for maintaining a healthy and efficient home or business. If your septic tank is experiencing issues or you need a new system installed, BWP & Sons Excavation has the expertise and equipment to get the job done right the first time.
With over 20 years of experience, our team of licensed and bonded technicians provides comprehensive septic system services, including design, installation, repair, and replacement. We ensure your system operates efficiently while helping prevent costly damage and environmental concerns.
Our Septic System Services
We offer a full range of septic system services to meet the needs of residential, commercial, and industrial clients throughout Southern New Hampshire:
Septic Tank Installation, Repair & Replacement
- Expert septic tank installation for new construction or system upgrades
- Fast and efficient repairs for cracked, damaged, or failing tanks
- Complete system replacements using high-quality, long-lasting materials
Sourcing & Installing High-Quality Septic Systems
- Installation of durable, state-of-the-art septic tanks that meet local regulations
- Custom septic system design based on property size, soil conditions, and drainage needs
Leach Field Installation & Replacement
- Professional leach field excavation for proper drainage and soil absorption
- Replacement of damaged or outdated leach fields
- Installation of licensed and compliant leach fields to prevent wastewater issues
Excavation & Site Preparation for Septic Systems
- Excavation for septic system placement
- Septic system and leach field excavation to create a stable, long-lasting setup
- Backfilling and site grading to ensure proper drainage and functionality
Erosion Control & Soil Stability
- Implementation of erosion control measures to prevent soil shifting and water damage
- Solutions to reinforce leach fields and maintain soil integrity for long-term septic performance
When Should You Consider Septic System Services?
If you notice any of the following warning signs, it may be time for septic system repair or replacement:
- Slow draining sinks, tubs, or toilets
- Unpleasant odors coming from drains or your yard
- Pooling water near your leach field or septic tank
- Sewage backups into your home
- Lush, overly green grass near the septic system
Regular maintenance and timely repairs can help extend the life of your septic system and avoid costly replacements. We do alot of work in the North Hampton and Kingston areas so more than likely we are in the area.
Septic FAQ's
How do I know if my septic system needs to be replaced?
Common signs include slow drains, sewage odors, wet or soggy areas in your yard, backups in the home, or a failed septic inspection. In many cases, older systems or failing leach fields can no longer be repaired and require full replacement. BWP & Sons Excavation can evaluate your system and explain your options clearly before any work begins.
How long does a septic system replacement take?
Most septic system replacements take 3–5 days, depending on soil conditions, permitting, system design, and weather. BWP & Sons Excavation handles the full process—from excavation to installation and final grading—to keep projects moving efficiently without cutting corners.
Do you handle septic system design and permitting in New Hampshire?
Yes. BWP & Sons Excavation manages complete septic system design, permitting, and installation. We work with engineers and local health departments to ensure your new system meets all New Hampshire state and town requirements, so you don’t have to navigate the process yourself.
Can my yard, driveway, or fence be restored after septic replacement?
Absolutely. Septic replacement is disruptive by nature, but proper site restoration makes a big difference. BWP & Sons Excavation takes care to restore grading, repair lawns, and even remove and replace fences when needed—something many homeowners specifically mention in our reviews.
How much does a septic system replacement cost in New Hampshire?
Septic replacement costs vary based on system type, soil conditions, site access, and leach field requirements. While it’s a major investment, BWP & Sons Excavation provides clear, upfront pricing after an on-site evaluation, so there are no surprises during the project.