New Hampshire’s Premiere
Full-Service Septic Service Company.

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Welcome to Garside Septic & Excavation LLC

For more than 40 years, Garside Septic & Excavation LLC has proudly served New Hampshire residents. We are a trusted family-owned business and pride ourselves on delivering top-notch septic solutions to meet all your needs.

We are a licensed and reputable septic company dedicated to providing exceptional services. Our team consists of experienced professionals who understand the intricacies of septic systems and are committed to ensuring the satisfaction of our valued customers. We believe in maintaining the highest standards of quality, professionalism, and customer care.

At Garside Septic, we offer a wide range of septic services to address all your needs. Our expertise covers tank pumping, repair, fracturing, and certifications. Whether you require routine maintenance, emergency assistance, or system inspections, we have you covered. Our licensed inspectors are well-equipped to evaluate the condition of your septic system thoroughly. From assessing tank size and filter condition to inspecting pipes, connections, and ventilation systems, we leave no stone unturned to optimize the efficiency of your septic pump.

Choosing Garside Septic means choosing peace of mind and reliability for all your septic needs. When it comes to your septic needs, Garside Septic & Excavation LLC is the name you can rely on. Contact us today at (603) 432-9300 to experience our exceptional service and expertise. Let us be your trusted partner in maintaining a healthy and functional septic system.


Before you purchase a new home, let Garside Septic & Excavation LLC make sure your septic system is in prime working order through our certification services.

Repair & Fracturing

The pump fracturing technicians at Garside Septic & Excavation LLC ensure the pipes in your home or office are always flowing smoothly. 

Tank Pumping

When your sewage pumps are not functioning properly, our complete septic system installations and tank pumping services are your solution.

Check Out These Kind Words from Our Amazing Customers

Over 40 years of experience serving New Hampshire Residents

the one-stop shop for all your septic needs

Reach out today and speak to one our septic pros.

Septic Tank Installations

Septic Tank Cleaning

Repair &

Septic Certifications