Excavation Services: Septic Installation & Repair

Expert Septic System Project Management in Bethlehem, NH

For most properties in Bethlehem, Franconia, and throughout the White Mountains, a reliable septic system is not a luxury—it's a necessity. Installing or replacing a septic system is a complex project involving designers, licensed installers, and significant excavation. T's Excavation simplifies this entire process for you. We act as your expert project manager, providing the crucial site work and coordination needed for a successful installation.

We work as a single point of contact, seamlessly integrating our excavation expertise with trusted, state-licensed NH septic designers and installers. This approach saves you the time and stress of managing multiple contractors, ensuring your new system is installed efficiently, correctly, and in full compliance with all NH DES and local regulations.

New Septic System Installation & Replacement


Whether you are building a new home or replacing a failed system, we manage the earthmoving and site logistics to ensure a smooth installation from start to finish.

  • Site Evaluation & Test Pits
    We begin by excavating test pits as required by the septic designer, allowing them to properly evaluate your property's soil conditions, slope, and water table to create an effective, compliant design.

  • Coordination with Licensed Professionals
    We work directly with your chosen licensed septic designer and installer, or we can connect you with trusted local professionals we have long-standing relationships with. Our role is to ensure the approved design is executed perfectly on-site.

  • Precise Excavation & Preparation
    Our skilled operators carefully excavate for the tank and leach field according to the approved design. We prepare the site to the exact specifications required for the professional installation of all tanks, distribution boxes, and leach field components (including conventional stone and pipe or advanced systems like Enviro-Septic®).


  • Final Grading & Restoration
    After the licensed installer has completed their work and the system has passed inspection, we meticulously backfill, grade, and restore the site to minimize the impact on your property.


Septic System Repair Management


Experiencing septic issues like backups, slow drains, or pooling water in your yard? We can help. We provide the necessary excavation services to allow a licensed professional to diagnose and repair the problem.

  • System Uncovering & Diagnosis
    We carefully locate and excavate around system components to allow for a thorough inspection and diagnosis of the failure, whether it's a crushed pipe, a failed leach field, or a distribution box issue.

  • Excavation for Repairs
    Once the problem is identified, we perform the precise excavation needed to allow for the repair or replacement of broken pipes, baffles, or other components by a qualified septic service professional.






Your Integrated Septic Project Partner

  • Streamlined Process
    One call to us manages the entire site-related portion of your septic project. We handle the coordination, so you don't have to.

  • Regulatory Knowledge
    We have a thorough understanding of the site work requirements dictated by NH DES Subsurface Systems Bureau rules and local codes.


  • Excavation Expertise
    Proper excavation is key to a long-lasting system. We ensure the base for the tank and leach field is perfectly prepared.


  • Minimal Disruption
    We work carefully and efficiently to minimize the impact on your existing landscaping and property throughout the project.


See Our Work

View examples of our septic system site work in our showcase.

Get Your Free Septic Project Estimate


Need a professional team to manage the site work and excavation for your septic project in the Bethlehem, NH area? Contact T's Excavation today for a professional assessment and a free, detailed estimate.


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