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About Garside Septic & Excavation LLC

For over 40 years, Garside Septic & Excavation LLC has been the go-to septic pump company in Londonderry, New Hampshire, serving both business and homeowners throughout Southern New Hampshire. We pride ourselves on delivering affordable, fast, and convenient septic pump services that you can rely on. As a family-owned and operated company, we are committed to providing honest and reliable solutions for all your septic system needs.

Our Expertise in Septic System Troubleshooting
At Garside Septic, our team of dedicated technicians specializes in troubleshooting everything related to your septic system. We understand the importance of a properly functioning septic system, and we are here to ensure that your tank is always working properly. Whether you need septic tank pumping, repair, or fracturing services, we have the knowledge and expertise to get the job done efficiently and effectively.

Licensed and Insured for Your Peace of Mind
Your protection and peace of mind are our top priorities. We are fully insured and licensed by the State of New Hampshire Board of Health, ensuring that you receive reliable and professional service. You can trust our experienced technicians to handle your septic system with care and expertise.

Comprehensive Services for Your Convenience
Garside Septic & Excavation LLC offers a comprehensive range of septic services to meet all your needs. From tank pumping to repair and fracturing, we have the solutions to keep your septic system in prime working order. We also provide certification services to ensure that your septic system meets the required standards before purchasing a new home.

Customer-Focused Approach
We value our customers and strive to provide exceptional service tailored to your specific requirements. Our team is dedicated to delivering prompt, reliable, and affordable solutions. As a customer-centric company, we prioritize your satisfaction and are committed to building long-term relationships based on trust and quality service.

Contact Us Today
Experience the expertise and reliability of Garside Septic & Excavation LLC. Contact us at (603) 432-9300 to schedule your septic pump service. Our friendly and knowledgeable team is ready to assist you with all your septic system needs. Trust us to keep your septic system functioning smoothly for years to come.


This company is extremely responsive and professional, came within 24 hours. Had a great experience, the employee answered all my questions and explained everything that was happening. Much appreciated!

Corilee Nunes

I had an emergency situation today and Keith came out and fixed it. He was honest, professional and the fee was very reasonable. The office staff was great too when I called as they answered my questions. Such a good feeling to know that there are trustworthy businesses that won’t take advantage of a problem and say it’s a bigger one.

Shannon Green

My tank hadn’t been pumped in quite awhile. I called another service and was told in a very condescending way “we won’t pump systems that have not been properly maintained”. I called Garsides and got on the schedule. They did say Keith would inspect the tank when he cleaned it. Keith showed up as promised and very professionally cleaned the tank and answered my questions. After the first company, I was very concerned about having to replace the system but Keith assured me all was fine. Thanks Keith. I love bumper sticker on the truck, “we carry milk on weekends”

Dennis F.